/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/test/easy10.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-03 20:17:56,116 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-03 20:17:56,117 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-03 20:17:56,174 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-03 20:17:56,217 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2022-03-03 20:17:56,240 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-03 20:17:56,240 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-03 20:17:56,240 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-03 20:17:56,240 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-03 20:17:56,241 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-03 20:17:56,241 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-03 20:17:56,241 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-03 20:17:56,241 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-03 20:17:56,242 INFO L138 SettingsManager]: * Use SBE=true [2022-03-03 20:17:56,242 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-03 20:17:56,242 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-03 20:17:56,242 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-03 20:17:56,242 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-03 20:17:56,242 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-03 20:17:56,242 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-03 20:17:56,242 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-03 20:17:56,242 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-03 20:17:56,242 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-03 20:17:56,242 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-03 20:17:56,242 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-03 20:17:56,243 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-03 20:17:56,243 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-03 20:17:56,243 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-03 20:17:56,243 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-03 20:17:56,245 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-03 20:17:56,245 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-03 20:17:56,245 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-03 20:17:56,245 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-03 20:17:56,246 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-03 20:17:56,246 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-03 20:17:56,246 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-03 20:17:56,246 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-03 20:17:56,246 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-03 20:17:56,247 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-03 20:17:56,455 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-03 20:17:56,474 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-03 20:17:56,477 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-03 20:17:56,477 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-03 20:17:56,478 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-03 20:17:56,480 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/test/easy10.wvr.bpl [2022-03-03 20:17:56,480 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/test/easy10.wvr.bpl' [2022-03-03 20:17:56,506 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-03 20:17:56,507 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-03 20:17:56,508 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-03 20:17:56,508 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-03 20:17:56,508 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-03 20:17:56,518 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.03 08:17:56" (1/1) ... [2022-03-03 20:17:56,522 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.03 08:17:56" (1/1) ... [2022-03-03 20:17:56,527 INFO L137 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-03 20:17:56,528 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-03 20:17:56,532 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-03 20:17:56,532 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-03 20:17:56,532 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-03 20:17:56,537 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.03 08:17:56" (1/1) ... [2022-03-03 20:17:56,538 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.03 08:17:56" (1/1) ... [2022-03-03 20:17:56,538 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.03 08:17:56" (1/1) ... [2022-03-03 20:17:56,538 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.03 08:17:56" (1/1) ... [2022-03-03 20:17:56,540 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.03 08:17:56" (1/1) ... [2022-03-03 20:17:56,541 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.03 08:17:56" (1/1) ... [2022-03-03 20:17:56,541 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.03 08:17:56" (1/1) ... [2022-03-03 20:17:56,542 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-03 20:17:56,542 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-03 20:17:56,542 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-03 20:17:56,542 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-03 20:17:56,543 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.03 08:17:56" (1/1) ... [2022-03-03 20:17:56,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-03 20:17:56,553 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 20:17:56,563 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-03 20:17:56,565 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-03 20:17:56,612 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-03-03 20:17:56,612 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-03 20:17:56,612 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-03 20:17:56,613 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-03-03 20:17:56,613 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-03 20:17:56,613 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-03 20:17:56,613 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-03 20:17:56,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-03 20:17:56,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-03 20:17:56,614 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-03-03 20:17:56,614 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-03 20:17:56,614 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-03 20:17:56,615 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2022-03-03 20:17:56,615 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-03-03 20:17:56,615 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-03-03 20:17:56,617 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-03 20:17:56,653 INFO L234 CfgBuilder]: Building ICFG [2022-03-03 20:17:56,654 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-03 20:17:56,747 INFO L275 CfgBuilder]: Performing block encoding [2022-03-03 20:17:56,752 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-03 20:17:56,753 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-03 20:17:56,754 INFO L202 PluginConnector]: Adding new model easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.03 08:17:56 BoogieIcfgContainer [2022-03-03 20:17:56,754 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-03 20:17:56,755 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-03 20:17:56,755 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-03 20:17:56,758 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-03 20:17:56,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.03 08:17:56" (1/2) ... [2022-03-03 20:17:56,759 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@324619d7 and model type easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 08:17:56, skipping insertion in model container [2022-03-03 20:17:56,759 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.03 08:17:56" (2/2) ... [2022-03-03 20:17:56,760 INFO L111 eAbstractionObserver]: Analyzing ICFG easy10.wvr.bpl [2022-03-03 20:17:56,763 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-03 20:17:56,763 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-03 20:17:56,763 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-03 20:17:56,764 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-03 20:17:56,825 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-03-03 20:17:56,870 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-03 20:17:56,875 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mLazyFiniteAutomaton=false, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-03 20:17:56,875 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-03-03 20:17:56,922 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 58 places, 45 transitions, 122 flow [2022-03-03 20:17:57,128 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 5269 states, 5268 states have (on average 3.4994305239179955) internal successors, (18435), 5268 states have internal predecessors, (18435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:17:57,145 INFO L276 IsEmpty]: Start isEmpty. Operand has 5269 states, 5268 states have (on average 3.4994305239179955) internal successors, (18435), 5268 states have internal predecessors, (18435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:17:57,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:17:57,188 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:17:57,189 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:17:57,190 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:17:57,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:17:57,196 INFO L85 PathProgramCache]: Analyzing trace with hash -748934232, now seen corresponding path program 1 times [2022-03-03 20:17:57,203 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:17:57,204 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042713771] [2022-03-03 20:17:57,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:17:57,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:17:57,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:17:57,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:17:57,341 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:17:57,341 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042713771] [2022-03-03 20:17:57,341 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042713771] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:17:57,342 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:17:57,342 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-03 20:17:57,343 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073330139] [2022-03-03 20:17:57,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:17:57,346 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-03 20:17:57,347 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:17:57,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-03 20:17:57,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-03 20:17:57,379 INFO L87 Difference]: Start difference. First operand has 5269 states, 5268 states have (on average 3.4994305239179955) internal successors, (18435), 5268 states have internal predecessors, (18435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 2 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:17:57,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:17:57,462 INFO L93 Difference]: Finished difference Result 4197 states and 14419 transitions. [2022-03-03 20:17:57,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-03 20:17:57,464 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 2 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:17:57,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:17:57,505 INFO L225 Difference]: With dead ends: 4197 [2022-03-03 20:17:57,506 INFO L226 Difference]: Without dead ends: 4197 [2022-03-03 20:17:57,507 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-03 20:17:57,512 INFO L933 BasicCegarLoop]: 31 mSDtfsCounter, 19 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 20:17:57,513 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 56 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 20:17:57,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4197 states. [2022-03-03 20:17:57,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4197 to 4197. [2022-03-03 20:17:57,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4197 states, 4196 states have (on average 3.436367969494757) internal successors, (14419), 4196 states have internal predecessors, (14419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:17:57,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4197 states to 4197 states and 14419 transitions. [2022-03-03 20:17:57,757 INFO L78 Accepts]: Start accepts. Automaton has 4197 states and 14419 transitions. Word has length 39 [2022-03-03 20:17:57,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:17:57,758 INFO L470 AbstractCegarLoop]: Abstraction has 4197 states and 14419 transitions. [2022-03-03 20:17:57,758 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 2 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:17:57,758 INFO L276 IsEmpty]: Start isEmpty. Operand 4197 states and 14419 transitions. [2022-03-03 20:17:57,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:17:57,769 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:17:57,769 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:17:57,769 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-03 20:17:57,770 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:17:57,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:17:57,770 INFO L85 PathProgramCache]: Analyzing trace with hash -2066982596, now seen corresponding path program 2 times [2022-03-03 20:17:57,770 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:17:57,771 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846658827] [2022-03-03 20:17:57,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:17:57,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:17:57,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:17:57,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:17:57,843 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:17:57,843 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846658827] [2022-03-03 20:17:57,843 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846658827] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:17:57,844 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:17:57,844 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-03 20:17:57,844 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174190926] [2022-03-03 20:17:57,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:17:57,845 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-03 20:17:57,845 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:17:57,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-03 20:17:57,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-03 20:17:57,846 INFO L87 Difference]: Start difference. First operand 4197 states and 14419 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 2 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:17:57,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:17:57,876 INFO L93 Difference]: Finished difference Result 3290 states and 11077 transitions. [2022-03-03 20:17:57,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-03 20:17:57,877 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 2 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:17:57,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:17:57,891 INFO L225 Difference]: With dead ends: 3290 [2022-03-03 20:17:57,891 INFO L226 Difference]: Without dead ends: 3290 [2022-03-03 20:17:57,891 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-03 20:17:57,892 INFO L933 BasicCegarLoop]: 31 mSDtfsCounter, 16 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 20:17:57,893 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 56 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 20:17:57,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3290 states. [2022-03-03 20:17:57,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3290 to 3290. [2022-03-03 20:17:57,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3290 states, 3289 states have (on average 3.367892976588629) internal successors, (11077), 3289 states have internal predecessors, (11077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:17:57,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3290 states to 3290 states and 11077 transitions. [2022-03-03 20:17:57,968 INFO L78 Accepts]: Start accepts. Automaton has 3290 states and 11077 transitions. Word has length 39 [2022-03-03 20:17:57,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:17:57,969 INFO L470 AbstractCegarLoop]: Abstraction has 3290 states and 11077 transitions. [2022-03-03 20:17:57,969 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 2 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:17:57,969 INFO L276 IsEmpty]: Start isEmpty. Operand 3290 states and 11077 transitions. [2022-03-03 20:17:57,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:17:57,976 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:17:57,977 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:17:57,977 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-03 20:17:57,977 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:17:57,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:17:57,978 INFO L85 PathProgramCache]: Analyzing trace with hash -907261672, now seen corresponding path program 3 times [2022-03-03 20:17:57,978 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:17:57,978 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601269360] [2022-03-03 20:17:57,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:17:57,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:17:58,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:17:58,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:17:58,477 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:17:58,477 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601269360] [2022-03-03 20:17:58,478 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601269360] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:17:58,479 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:17:58,481 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 20:17:58,484 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389468850] [2022-03-03 20:17:58,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:17:58,485 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-03-03 20:17:58,485 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:17:58,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-03-03 20:17:58,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2022-03-03 20:17:58,486 INFO L87 Difference]: Start difference. First operand 3290 states and 11077 transitions. Second operand has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:17:59,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:17:59,646 INFO L93 Difference]: Finished difference Result 3661 states and 12223 transitions. [2022-03-03 20:17:59,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-03 20:17:59,646 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:17:59,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:17:59,662 INFO L225 Difference]: With dead ends: 3661 [2022-03-03 20:17:59,662 INFO L226 Difference]: Without dead ends: 3594 [2022-03-03 20:17:59,663 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 266 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=157, Invalid=1325, Unknown=0, NotChecked=0, Total=1482 [2022-03-03 20:17:59,664 INFO L933 BasicCegarLoop]: 92 mSDtfsCounter, 161 mSDsluCounter, 925 mSDsCounter, 0 mSdLazyCounter, 1326 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 755 SdHoareTripleChecker+Invalid, 1350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:17:59,664 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 755 Invalid, 1350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1326 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:17:59,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3594 states. [2022-03-03 20:17:59,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3594 to 3418. [2022-03-03 20:17:59,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3418 states, 3417 states have (on average 3.359964881474978) internal successors, (11481), 3417 states have internal predecessors, (11481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:17:59,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3418 states to 3418 states and 11481 transitions. [2022-03-03 20:17:59,750 INFO L78 Accepts]: Start accepts. Automaton has 3418 states and 11481 transitions. Word has length 39 [2022-03-03 20:17:59,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:17:59,751 INFO L470 AbstractCegarLoop]: Abstraction has 3418 states and 11481 transitions. [2022-03-03 20:17:59,751 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:17:59,751 INFO L276 IsEmpty]: Start isEmpty. Operand 3418 states and 11481 transitions. [2022-03-03 20:17:59,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:17:59,760 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:17:59,760 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:17:59,760 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-03 20:17:59,760 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:17:59,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:17:59,761 INFO L85 PathProgramCache]: Analyzing trace with hash 1668089654, now seen corresponding path program 4 times [2022-03-03 20:17:59,761 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:17:59,761 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151305638] [2022-03-03 20:17:59,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:17:59,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:17:59,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:18:00,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:18:00,084 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:18:00,084 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151305638] [2022-03-03 20:18:00,085 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151305638] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:18:00,085 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:18:00,085 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 20:18:00,085 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493481857] [2022-03-03 20:18:00,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:18:00,086 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-03-03 20:18:00,086 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:18:00,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-03-03 20:18:00,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2022-03-03 20:18:00,087 INFO L87 Difference]: Start difference. First operand 3418 states and 11481 transitions. Second operand has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:01,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:18:01,410 INFO L93 Difference]: Finished difference Result 3717 states and 12358 transitions. [2022-03-03 20:18:01,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 20:18:01,410 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:18:01,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:18:01,428 INFO L225 Difference]: With dead ends: 3717 [2022-03-03 20:18:01,428 INFO L226 Difference]: Without dead ends: 3674 [2022-03-03 20:18:01,429 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 473 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=221, Invalid=1941, Unknown=0, NotChecked=0, Total=2162 [2022-03-03 20:18:01,430 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 217 mSDsluCounter, 1015 mSDsCounter, 0 mSdLazyCounter, 1561 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 821 SdHoareTripleChecker+Invalid, 1592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1561 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:18:01,430 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [217 Valid, 821 Invalid, 1592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1561 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:18:01,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3674 states. [2022-03-03 20:18:01,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3674 to 3424. [2022-03-03 20:18:01,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3424 states, 3423 states have (on average 3.357873210633947) internal successors, (11494), 3423 states have internal predecessors, (11494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:01,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3424 states to 3424 states and 11494 transitions. [2022-03-03 20:18:01,508 INFO L78 Accepts]: Start accepts. Automaton has 3424 states and 11494 transitions. Word has length 39 [2022-03-03 20:18:01,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:18:01,509 INFO L470 AbstractCegarLoop]: Abstraction has 3424 states and 11494 transitions. [2022-03-03 20:18:01,509 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:01,509 INFO L276 IsEmpty]: Start isEmpty. Operand 3424 states and 11494 transitions. [2022-03-03 20:18:01,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:18:01,517 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:18:01,517 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:18:01,518 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-03 20:18:01,518 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:18:01,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:18:01,518 INFO L85 PathProgramCache]: Analyzing trace with hash -112508648, now seen corresponding path program 5 times [2022-03-03 20:18:01,518 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:18:01,518 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40567388] [2022-03-03 20:18:01,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:18:01,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:18:01,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:18:01,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:18:01,786 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:18:01,786 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40567388] [2022-03-03 20:18:01,786 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40567388] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:18:01,786 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:18:01,786 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 20:18:01,787 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613247483] [2022-03-03 20:18:01,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:18:01,787 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-03-03 20:18:01,787 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:18:01,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-03-03 20:18:01,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2022-03-03 20:18:01,788 INFO L87 Difference]: Start difference. First operand 3424 states and 11494 transitions. Second operand has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:03,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:18:03,008 INFO L93 Difference]: Finished difference Result 3672 states and 12254 transitions. [2022-03-03 20:18:03,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-03 20:18:03,009 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:18:03,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:18:03,022 INFO L225 Difference]: With dead ends: 3672 [2022-03-03 20:18:03,022 INFO L226 Difference]: Without dead ends: 3608 [2022-03-03 20:18:03,023 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 411 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=209, Invalid=1771, Unknown=0, NotChecked=0, Total=1980 [2022-03-03 20:18:03,033 INFO L933 BasicCegarLoop]: 96 mSDtfsCounter, 193 mSDsluCounter, 989 mSDsCounter, 0 mSdLazyCounter, 1527 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 807 SdHoareTripleChecker+Invalid, 1555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:18:03,033 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [193 Valid, 807 Invalid, 1555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1527 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:18:03,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3608 states. [2022-03-03 20:18:03,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3608 to 3406. [2022-03-03 20:18:03,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3406 states, 3405 states have (on average 3.3606461086637296) internal successors, (11443), 3405 states have internal predecessors, (11443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:03,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3406 states to 3406 states and 11443 transitions. [2022-03-03 20:18:03,105 INFO L78 Accepts]: Start accepts. Automaton has 3406 states and 11443 transitions. Word has length 39 [2022-03-03 20:18:03,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:18:03,105 INFO L470 AbstractCegarLoop]: Abstraction has 3406 states and 11443 transitions. [2022-03-03 20:18:03,106 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:03,106 INFO L276 IsEmpty]: Start isEmpty. Operand 3406 states and 11443 transitions. [2022-03-03 20:18:03,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:18:03,113 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:18:03,113 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:18:03,113 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-03 20:18:03,114 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:18:03,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:18:03,114 INFO L85 PathProgramCache]: Analyzing trace with hash -521324264, now seen corresponding path program 6 times [2022-03-03 20:18:03,115 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:18:03,116 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205280477] [2022-03-03 20:18:03,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:18:03,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:18:03,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:18:03,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:18:03,392 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:18:03,392 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205280477] [2022-03-03 20:18:03,392 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205280477] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:18:03,393 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:18:03,393 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 20:18:03,393 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182689062] [2022-03-03 20:18:03,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:18:03,393 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-03-03 20:18:03,393 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:18:03,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-03-03 20:18:03,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2022-03-03 20:18:03,394 INFO L87 Difference]: Start difference. First operand 3406 states and 11443 transitions. Second operand has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:04,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:18:04,575 INFO L93 Difference]: Finished difference Result 3717 states and 12377 transitions. [2022-03-03 20:18:04,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-03 20:18:04,575 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:18:04,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:18:04,595 INFO L225 Difference]: With dead ends: 3717 [2022-03-03 20:18:04,595 INFO L226 Difference]: Without dead ends: 3587 [2022-03-03 20:18:04,596 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 440 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=210, Invalid=1860, Unknown=0, NotChecked=0, Total=2070 [2022-03-03 20:18:04,596 INFO L933 BasicCegarLoop]: 101 mSDtfsCounter, 195 mSDsluCounter, 1066 mSDsCounter, 0 mSdLazyCounter, 1590 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 858 SdHoareTripleChecker+Invalid, 1618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:18:04,597 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [195 Valid, 858 Invalid, 1618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1590 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:18:04,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3587 states. [2022-03-03 20:18:04,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3587 to 3382. [2022-03-03 20:18:04,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3382 states, 3381 states have (on average 3.3632061520260277) internal successors, (11371), 3381 states have internal predecessors, (11371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:04,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3382 states to 3382 states and 11371 transitions. [2022-03-03 20:18:04,724 INFO L78 Accepts]: Start accepts. Automaton has 3382 states and 11371 transitions. Word has length 39 [2022-03-03 20:18:04,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:18:04,724 INFO L470 AbstractCegarLoop]: Abstraction has 3382 states and 11371 transitions. [2022-03-03 20:18:04,724 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:04,724 INFO L276 IsEmpty]: Start isEmpty. Operand 3382 states and 11371 transitions. [2022-03-03 20:18:04,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:18:04,732 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:18:04,732 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:18:04,732 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-03 20:18:04,732 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:18:04,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:18:04,732 INFO L85 PathProgramCache]: Analyzing trace with hash 1316627588, now seen corresponding path program 7 times [2022-03-03 20:18:04,733 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:18:04,733 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931155640] [2022-03-03 20:18:04,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:18:04,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:18:04,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:18:04,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:18:04,986 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:18:04,986 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931155640] [2022-03-03 20:18:04,986 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931155640] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:18:04,987 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:18:04,987 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:18:04,987 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85304606] [2022-03-03 20:18:04,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:18:04,987 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:18:04,987 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:18:04,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:18:04,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:18:04,988 INFO L87 Difference]: Start difference. First operand 3382 states and 11371 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:05,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:18:05,964 INFO L93 Difference]: Finished difference Result 3691 states and 12292 transitions. [2022-03-03 20:18:05,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-03-03 20:18:05,971 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:18:05,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:18:05,982 INFO L225 Difference]: With dead ends: 3691 [2022-03-03 20:18:05,983 INFO L226 Difference]: Without dead ends: 3624 [2022-03-03 20:18:05,983 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 337 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=189, Invalid=1617, Unknown=0, NotChecked=0, Total=1806 [2022-03-03 20:18:05,984 INFO L933 BasicCegarLoop]: 92 mSDtfsCounter, 186 mSDsluCounter, 1002 mSDsCounter, 0 mSdLazyCounter, 1421 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 824 SdHoareTripleChecker+Invalid, 1461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:18:05,984 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [186 Valid, 824 Invalid, 1461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1421 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:18:05,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3624 states. [2022-03-03 20:18:06,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3624 to 3398. [2022-03-03 20:18:06,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3398 states, 3397 states have (on average 3.3591404180158966) internal successors, (11411), 3397 states have internal predecessors, (11411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:06,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3398 states to 3398 states and 11411 transitions. [2022-03-03 20:18:06,050 INFO L78 Accepts]: Start accepts. Automaton has 3398 states and 11411 transitions. Word has length 39 [2022-03-03 20:18:06,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:18:06,050 INFO L470 AbstractCegarLoop]: Abstraction has 3398 states and 11411 transitions. [2022-03-03 20:18:06,050 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:06,050 INFO L276 IsEmpty]: Start isEmpty. Operand 3398 states and 11411 transitions. [2022-03-03 20:18:06,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:18:06,057 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:18:06,057 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:18:06,057 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-03 20:18:06,057 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:18:06,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:18:06,063 INFO L85 PathProgramCache]: Analyzing trace with hash -402988382, now seen corresponding path program 8 times [2022-03-03 20:18:06,064 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:18:06,064 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628809410] [2022-03-03 20:18:06,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:18:06,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:18:06,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:18:06,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:18:06,376 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:18:06,376 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628809410] [2022-03-03 20:18:06,376 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628809410] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:18:06,376 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:18:06,376 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:18:06,376 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972792006] [2022-03-03 20:18:06,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:18:06,376 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:18:06,376 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:18:06,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:18:06,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:18:06,377 INFO L87 Difference]: Start difference. First operand 3398 states and 11411 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:07,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:18:07,638 INFO L93 Difference]: Finished difference Result 3780 states and 12493 transitions. [2022-03-03 20:18:07,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-03-03 20:18:07,638 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:18:07,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:18:07,648 INFO L225 Difference]: With dead ends: 3780 [2022-03-03 20:18:07,648 INFO L226 Difference]: Without dead ends: 3737 [2022-03-03 20:18:07,649 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 600 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=261, Invalid=2391, Unknown=0, NotChecked=0, Total=2652 [2022-03-03 20:18:07,650 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 245 mSDsluCounter, 1128 mSDsCounter, 0 mSdLazyCounter, 1683 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 919 SdHoareTripleChecker+Invalid, 1731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 1683 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:18:07,650 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [245 Valid, 919 Invalid, 1731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 1683 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:18:07,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3737 states. [2022-03-03 20:18:07,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3737 to 3404. [2022-03-03 20:18:07,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3404 states, 3403 states have (on average 3.3570379077284747) internal successors, (11424), 3403 states have internal predecessors, (11424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:07,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3404 states to 3404 states and 11424 transitions. [2022-03-03 20:18:07,719 INFO L78 Accepts]: Start accepts. Automaton has 3404 states and 11424 transitions. Word has length 39 [2022-03-03 20:18:07,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:18:07,719 INFO L470 AbstractCegarLoop]: Abstraction has 3404 states and 11424 transitions. [2022-03-03 20:18:07,719 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:07,719 INFO L276 IsEmpty]: Start isEmpty. Operand 3404 states and 11424 transitions. [2022-03-03 20:18:07,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:18:07,726 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:18:07,726 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:18:07,726 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-03 20:18:07,726 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:18:07,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:18:07,726 INFO L85 PathProgramCache]: Analyzing trace with hash 2111380612, now seen corresponding path program 9 times [2022-03-03 20:18:07,726 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:18:07,727 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850686594] [2022-03-03 20:18:07,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:18:07,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:18:07,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:18:07,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:18:07,995 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:18:07,995 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850686594] [2022-03-03 20:18:07,995 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850686594] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:18:07,995 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:18:07,995 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:18:07,996 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060934163] [2022-03-03 20:18:07,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:18:07,996 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:18:07,996 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:18:07,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:18:07,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:18:07,996 INFO L87 Difference]: Start difference. First operand 3404 states and 11424 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:09,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:18:09,245 INFO L93 Difference]: Finished difference Result 3735 states and 12389 transitions. [2022-03-03 20:18:09,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-03-03 20:18:09,245 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:18:09,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:18:09,255 INFO L225 Difference]: With dead ends: 3735 [2022-03-03 20:18:09,256 INFO L226 Difference]: Without dead ends: 3671 [2022-03-03 20:18:09,257 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 566 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=250, Invalid=2300, Unknown=0, NotChecked=0, Total=2550 [2022-03-03 20:18:09,258 INFO L933 BasicCegarLoop]: 96 mSDtfsCounter, 233 mSDsluCounter, 1107 mSDsCounter, 0 mSdLazyCounter, 1652 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 908 SdHoareTripleChecker+Invalid, 1695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 1652 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:18:09,259 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [233 Valid, 908 Invalid, 1695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 1652 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:18:09,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3671 states. [2022-03-03 20:18:09,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3671 to 3386. [2022-03-03 20:18:09,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3386 states, 3385 states have (on average 3.3621861152141803) internal successors, (11381), 3385 states have internal predecessors, (11381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:09,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3386 states to 3386 states and 11381 transitions. [2022-03-03 20:18:09,330 INFO L78 Accepts]: Start accepts. Automaton has 3386 states and 11381 transitions. Word has length 39 [2022-03-03 20:18:09,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:18:09,330 INFO L470 AbstractCegarLoop]: Abstraction has 3386 states and 11381 transitions. [2022-03-03 20:18:09,330 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:09,331 INFO L276 IsEmpty]: Start isEmpty. Operand 3386 states and 11381 transitions. [2022-03-03 20:18:09,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:18:09,337 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:18:09,337 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:18:09,337 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-03 20:18:09,337 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:18:09,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:18:09,338 INFO L85 PathProgramCache]: Analyzing trace with hash -1563152284, now seen corresponding path program 10 times [2022-03-03 20:18:09,338 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:18:09,338 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811855176] [2022-03-03 20:18:09,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:18:09,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:18:09,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:18:09,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:18:09,628 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:18:09,628 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811855176] [2022-03-03 20:18:09,628 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811855176] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:18:09,629 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:18:09,629 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:18:09,629 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778659014] [2022-03-03 20:18:09,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:18:09,629 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:18:09,629 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:18:09,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:18:09,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:18:09,629 INFO L87 Difference]: Start difference. First operand 3386 states and 11381 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:10,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:18:10,587 INFO L93 Difference]: Finished difference Result 3643 states and 12154 transitions. [2022-03-03 20:18:10,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 20:18:10,587 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:18:10,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:18:10,597 INFO L225 Difference]: With dead ends: 3643 [2022-03-03 20:18:10,597 INFO L226 Difference]: Without dead ends: 3576 [2022-03-03 20:18:10,598 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 310 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=176, Invalid=1546, Unknown=0, NotChecked=0, Total=1722 [2022-03-03 20:18:10,598 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 168 mSDsluCounter, 1057 mSDsCounter, 0 mSdLazyCounter, 1483 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 875 SdHoareTripleChecker+Invalid, 1513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:18:10,598 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [168 Valid, 875 Invalid, 1513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1483 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:18:10,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3576 states. [2022-03-03 20:18:10,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3576 to 3394. [2022-03-03 20:18:10,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3394 states, 3393 states have (on average 3.358974358974359) internal successors, (11397), 3393 states have internal predecessors, (11397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:10,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3394 states to 3394 states and 11397 transitions. [2022-03-03 20:18:10,682 INFO L78 Accepts]: Start accepts. Automaton has 3394 states and 11397 transitions. Word has length 39 [2022-03-03 20:18:10,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:18:10,682 INFO L470 AbstractCegarLoop]: Abstraction has 3394 states and 11397 transitions. [2022-03-03 20:18:10,682 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:10,682 INFO L276 IsEmpty]: Start isEmpty. Operand 3394 states and 11397 transitions. [2022-03-03 20:18:10,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:18:10,689 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:18:10,689 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:18:10,689 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-03 20:18:10,689 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:18:10,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:18:10,689 INFO L85 PathProgramCache]: Analyzing trace with hash -1693747132, now seen corresponding path program 11 times [2022-03-03 20:18:10,689 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:18:10,690 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918857420] [2022-03-03 20:18:10,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:18:10,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:18:10,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:18:10,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:18:10,917 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:18:10,917 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918857420] [2022-03-03 20:18:10,917 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918857420] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:18:10,917 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:18:10,917 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:18:10,918 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216283468] [2022-03-03 20:18:10,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:18:10,918 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:18:10,918 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:18:10,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:18:10,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:18:10,919 INFO L87 Difference]: Start difference. First operand 3394 states and 11397 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:11,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:18:11,764 INFO L93 Difference]: Finished difference Result 3631 states and 12114 transitions. [2022-03-03 20:18:11,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-03-03 20:18:11,765 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:18:11,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:18:11,775 INFO L225 Difference]: With dead ends: 3631 [2022-03-03 20:18:11,776 INFO L226 Difference]: Without dead ends: 3568 [2022-03-03 20:18:11,776 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 335 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=182, Invalid=1624, Unknown=0, NotChecked=0, Total=1806 [2022-03-03 20:18:11,778 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 182 mSDsluCounter, 1056 mSDsCounter, 0 mSdLazyCounter, 1469 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 886 SdHoareTripleChecker+Invalid, 1500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:18:11,778 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [182 Valid, 886 Invalid, 1500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1469 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:18:11,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3568 states. [2022-03-03 20:18:11,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3568 to 3386. [2022-03-03 20:18:11,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3386 states, 3385 states have (on average 3.3610044313146235) internal successors, (11377), 3385 states have internal predecessors, (11377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:11,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3386 states to 3386 states and 11377 transitions. [2022-03-03 20:18:11,834 INFO L78 Accepts]: Start accepts. Automaton has 3386 states and 11377 transitions. Word has length 39 [2022-03-03 20:18:11,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:18:11,835 INFO L470 AbstractCegarLoop]: Abstraction has 3386 states and 11377 transitions. [2022-03-03 20:18:11,835 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:11,835 INFO L276 IsEmpty]: Start isEmpty. Operand 3386 states and 11377 transitions. [2022-03-03 20:18:11,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:18:11,841 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:18:11,841 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:18:11,842 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-03 20:18:11,842 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:18:11,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:18:11,842 INFO L85 PathProgramCache]: Analyzing trace with hash -1829425724, now seen corresponding path program 12 times [2022-03-03 20:18:11,842 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:18:11,842 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140437127] [2022-03-03 20:18:11,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:18:11,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:18:11,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:18:12,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:18:12,114 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:18:12,114 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140437127] [2022-03-03 20:18:12,114 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140437127] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:18:12,114 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:18:12,114 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:18:12,115 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016255928] [2022-03-03 20:18:12,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:18:12,115 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:18:12,115 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:18:12,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:18:12,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:18:12,115 INFO L87 Difference]: Start difference. First operand 3386 states and 11377 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:13,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:18:13,404 INFO L93 Difference]: Finished difference Result 3769 states and 12461 transitions. [2022-03-03 20:18:13,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-03 20:18:13,404 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:18:13,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:18:13,413 INFO L225 Difference]: With dead ends: 3769 [2022-03-03 20:18:13,414 INFO L226 Difference]: Without dead ends: 3726 [2022-03-03 20:18:13,414 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 634 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=268, Invalid=2488, Unknown=0, NotChecked=0, Total=2756 [2022-03-03 20:18:13,415 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 247 mSDsluCounter, 1121 mSDsCounter, 0 mSdLazyCounter, 1700 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 918 SdHoareTripleChecker+Invalid, 1745 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1700 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:18:13,415 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [247 Valid, 918 Invalid, 1745 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 1700 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:18:13,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3726 states. [2022-03-03 20:18:13,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3726 to 3394. [2022-03-03 20:18:13,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3394 states, 3393 states have (on average 3.358974358974359) internal successors, (11397), 3393 states have internal predecessors, (11397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:13,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3394 states to 3394 states and 11397 transitions. [2022-03-03 20:18:13,491 INFO L78 Accepts]: Start accepts. Automaton has 3394 states and 11397 transitions. Word has length 39 [2022-03-03 20:18:13,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:18:13,491 INFO L470 AbstractCegarLoop]: Abstraction has 3394 states and 11397 transitions. [2022-03-03 20:18:13,491 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:13,491 INFO L276 IsEmpty]: Start isEmpty. Operand 3394 states and 11397 transitions. [2022-03-03 20:18:13,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:18:13,497 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:18:13,497 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:18:13,497 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-03 20:18:13,497 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:18:13,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:18:13,498 INFO L85 PathProgramCache]: Analyzing trace with hash 684943270, now seen corresponding path program 13 times [2022-03-03 20:18:13,498 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:18:13,498 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611865902] [2022-03-03 20:18:13,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:18:13,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:18:13,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:18:13,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:18:13,763 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:18:13,763 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611865902] [2022-03-03 20:18:13,763 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611865902] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:18:13,763 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:18:13,763 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:18:13,763 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843338822] [2022-03-03 20:18:13,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:18:13,764 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:18:13,764 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:18:13,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:18:13,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:18:13,764 INFO L87 Difference]: Start difference. First operand 3394 states and 11397 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:14,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:18:14,958 INFO L93 Difference]: Finished difference Result 3757 states and 12423 transitions. [2022-03-03 20:18:14,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-03 20:18:14,958 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:18:14,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:18:14,966 INFO L225 Difference]: With dead ends: 3757 [2022-03-03 20:18:14,967 INFO L226 Difference]: Without dead ends: 3705 [2022-03-03 20:18:14,967 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 599 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=260, Invalid=2392, Unknown=0, NotChecked=0, Total=2652 [2022-03-03 20:18:14,970 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 245 mSDsluCounter, 1097 mSDsCounter, 0 mSdLazyCounter, 1671 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 905 SdHoareTripleChecker+Invalid, 1712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1671 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:18:14,970 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [245 Valid, 905 Invalid, 1712 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1671 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:18:14,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3705 states. [2022-03-03 20:18:15,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3705 to 3388. [2022-03-03 20:18:15,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3388 states, 3387 states have (on average 3.3604960141718334) internal successors, (11382), 3387 states have internal predecessors, (11382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:15,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3388 states to 3388 states and 11382 transitions. [2022-03-03 20:18:15,037 INFO L78 Accepts]: Start accepts. Automaton has 3388 states and 11382 transitions. Word has length 39 [2022-03-03 20:18:15,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:18:15,037 INFO L470 AbstractCegarLoop]: Abstraction has 3388 states and 11382 transitions. [2022-03-03 20:18:15,038 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:15,038 INFO L276 IsEmpty]: Start isEmpty. Operand 3388 states and 11382 transitions. [2022-03-03 20:18:15,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:18:15,044 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:18:15,044 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:18:15,044 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-03 20:18:15,044 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:18:15,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:18:15,045 INFO L85 PathProgramCache]: Analyzing trace with hash -910942154, now seen corresponding path program 14 times [2022-03-03 20:18:15,045 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:18:15,045 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329760241] [2022-03-03 20:18:15,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:18:15,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:18:15,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:18:15,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:18:15,285 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:18:15,285 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329760241] [2022-03-03 20:18:15,285 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329760241] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:18:15,285 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:18:15,285 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:18:15,285 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744221710] [2022-03-03 20:18:15,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:18:15,285 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:18:15,285 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:18:15,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:18:15,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:18:15,286 INFO L87 Difference]: Start difference. First operand 3388 states and 11382 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:16,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:18:16,121 INFO L93 Difference]: Finished difference Result 3718 states and 12302 transitions. [2022-03-03 20:18:16,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-03 20:18:16,121 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:18:16,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:18:16,129 INFO L225 Difference]: With dead ends: 3718 [2022-03-03 20:18:16,129 INFO L226 Difference]: Without dead ends: 3663 [2022-03-03 20:18:16,130 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 391 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=202, Invalid=1778, Unknown=0, NotChecked=0, Total=1980 [2022-03-03 20:18:16,130 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 211 mSDsluCounter, 1086 mSDsCounter, 0 mSdLazyCounter, 1525 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 878 SdHoareTripleChecker+Invalid, 1559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 20:18:16,130 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [211 Valid, 878 Invalid, 1559 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1525 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 20:18:16,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3663 states. [2022-03-03 20:18:16,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3663 to 3388. [2022-03-03 20:18:16,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3388 states, 3387 states have (on average 3.359905521110127) internal successors, (11380), 3387 states have internal predecessors, (11380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:16,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3388 states to 3388 states and 11380 transitions. [2022-03-03 20:18:16,190 INFO L78 Accepts]: Start accepts. Automaton has 3388 states and 11380 transitions. Word has length 39 [2022-03-03 20:18:16,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:18:16,190 INFO L470 AbstractCegarLoop]: Abstraction has 3388 states and 11380 transitions. [2022-03-03 20:18:16,191 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:16,191 INFO L276 IsEmpty]: Start isEmpty. Operand 3388 states and 11380 transitions. [2022-03-03 20:18:16,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:18:16,197 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:18:16,197 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:18:16,197 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-03 20:18:16,197 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:18:16,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:18:16,198 INFO L85 PathProgramCache]: Analyzing trace with hash 261710068, now seen corresponding path program 15 times [2022-03-03 20:18:16,198 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:18:16,198 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012214759] [2022-03-03 20:18:16,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:18:16,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:18:16,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:18:16,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:18:16,473 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:18:16,473 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012214759] [2022-03-03 20:18:16,473 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012214759] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:18:16,473 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:18:16,473 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:18:16,473 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714177844] [2022-03-03 20:18:16,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:18:16,474 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:18:16,474 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:18:16,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:18:16,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:18:16,474 INFO L87 Difference]: Start difference. First operand 3388 states and 11380 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:17,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:18:17,325 INFO L93 Difference]: Finished difference Result 3628 states and 12104 transitions. [2022-03-03 20:18:17,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-03-03 20:18:17,326 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:18:17,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:18:17,333 INFO L225 Difference]: With dead ends: 3628 [2022-03-03 20:18:17,333 INFO L226 Difference]: Without dead ends: 3564 [2022-03-03 20:18:17,333 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 333 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=187, Invalid=1619, Unknown=0, NotChecked=0, Total=1806 [2022-03-03 20:18:17,334 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 175 mSDsluCounter, 1075 mSDsCounter, 0 mSdLazyCounter, 1475 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 884 SdHoareTripleChecker+Invalid, 1504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:18:17,334 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 884 Invalid, 1504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1475 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:18:17,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3564 states. [2022-03-03 20:18:17,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3564 to 3382. [2022-03-03 20:18:17,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3382 states, 3381 states have (on average 3.3620230700976044) internal successors, (11367), 3381 states have internal predecessors, (11367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:17,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3382 states to 3382 states and 11367 transitions. [2022-03-03 20:18:17,383 INFO L78 Accepts]: Start accepts. Automaton has 3382 states and 11367 transitions. Word has length 39 [2022-03-03 20:18:17,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:18:17,384 INFO L470 AbstractCegarLoop]: Abstraction has 3382 states and 11367 transitions. [2022-03-03 20:18:17,384 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:17,384 INFO L276 IsEmpty]: Start isEmpty. Operand 3382 states and 11367 transitions. [2022-03-03 20:18:17,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:18:17,389 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:18:17,389 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:18:17,389 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-03 20:18:17,389 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:18:17,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:18:17,390 INFO L85 PathProgramCache]: Analyzing trace with hash -1791208906, now seen corresponding path program 16 times [2022-03-03 20:18:17,390 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:18:17,390 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369880849] [2022-03-03 20:18:17,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:18:17,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:18:17,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:18:17,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:18:17,609 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:18:17,609 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369880849] [2022-03-03 20:18:17,611 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369880849] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:18:17,611 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:18:17,611 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:18:17,611 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041133102] [2022-03-03 20:18:17,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:18:17,612 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:18:17,612 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:18:17,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:18:17,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:18:17,612 INFO L87 Difference]: Start difference. First operand 3382 states and 11367 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:18,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:18:18,822 INFO L93 Difference]: Finished difference Result 3835 states and 12644 transitions. [2022-03-03 20:18:18,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-03-03 20:18:18,822 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:18:18,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:18:18,830 INFO L225 Difference]: With dead ends: 3835 [2022-03-03 20:18:18,830 INFO L226 Difference]: Without dead ends: 3698 [2022-03-03 20:18:18,831 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 566 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=247, Invalid=2303, Unknown=0, NotChecked=0, Total=2550 [2022-03-03 20:18:18,832 INFO L933 BasicCegarLoop]: 108 mSDtfsCounter, 247 mSDsluCounter, 1268 mSDsCounter, 0 mSdLazyCounter, 1801 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 1000 SdHoareTripleChecker+Invalid, 1839 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1801 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:18:18,832 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [247 Valid, 1000 Invalid, 1839 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1801 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:18:18,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3698 states. [2022-03-03 20:18:18,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3698 to 3386. [2022-03-03 20:18:18,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3386 states, 3385 states have (on average 3.3610044313146235) internal successors, (11377), 3385 states have internal predecessors, (11377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:18,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3386 states to 3386 states and 11377 transitions. [2022-03-03 20:18:18,967 INFO L78 Accepts]: Start accepts. Automaton has 3386 states and 11377 transitions. Word has length 39 [2022-03-03 20:18:18,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:18:18,967 INFO L470 AbstractCegarLoop]: Abstraction has 3386 states and 11377 transitions. [2022-03-03 20:18:18,967 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:18,967 INFO L276 IsEmpty]: Start isEmpty. Operand 3386 states and 11377 transitions. [2022-03-03 20:18:18,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:18:18,974 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:18:18,974 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:18:18,975 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-03 20:18:18,975 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:18:18,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:18:18,975 INFO L85 PathProgramCache]: Analyzing trace with hash 1008867490, now seen corresponding path program 17 times [2022-03-03 20:18:18,975 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:18:18,975 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084169507] [2022-03-03 20:18:18,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:18:18,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:18:18,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:18:19,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:18:19,346 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:18:19,346 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084169507] [2022-03-03 20:18:19,346 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084169507] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:18:19,346 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:18:19,346 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:18:19,346 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575040419] [2022-03-03 20:18:19,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:18:19,346 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:18:19,346 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:18:19,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:18:19,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:18:19,347 INFO L87 Difference]: Start difference. First operand 3386 states and 11377 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:20,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:18:20,475 INFO L93 Difference]: Finished difference Result 3873 states and 12714 transitions. [2022-03-03 20:18:20,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-03 20:18:20,475 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:18:20,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:18:20,482 INFO L225 Difference]: With dead ends: 3873 [2022-03-03 20:18:20,482 INFO L226 Difference]: Without dead ends: 3809 [2022-03-03 20:18:20,483 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 600 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=256, Invalid=2396, Unknown=0, NotChecked=0, Total=2652 [2022-03-03 20:18:20,484 INFO L933 BasicCegarLoop]: 101 mSDtfsCounter, 247 mSDsluCounter, 1188 mSDsCounter, 0 mSdLazyCounter, 1774 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 952 SdHoareTripleChecker+Invalid, 1816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 1774 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:18:20,485 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [247 Valid, 952 Invalid, 1816 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 1774 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:18:20,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3809 states. [2022-03-03 20:18:20,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3809 to 3388. [2022-03-03 20:18:20,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3388 states, 3387 states have (on average 3.3604960141718334) internal successors, (11382), 3387 states have internal predecessors, (11382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:20,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3388 states to 3388 states and 11382 transitions. [2022-03-03 20:18:20,554 INFO L78 Accepts]: Start accepts. Automaton has 3388 states and 11382 transitions. Word has length 39 [2022-03-03 20:18:20,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:18:20,555 INFO L470 AbstractCegarLoop]: Abstraction has 3388 states and 11382 transitions. [2022-03-03 20:18:20,556 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:20,556 INFO L276 IsEmpty]: Start isEmpty. Operand 3388 states and 11382 transitions. [2022-03-03 20:18:20,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:18:20,564 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:18:20,564 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:18:20,564 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-03 20:18:20,564 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:18:20,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:18:20,565 INFO L85 PathProgramCache]: Analyzing trace with hash 1927351060, now seen corresponding path program 18 times [2022-03-03 20:18:20,565 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:18:20,565 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86362510] [2022-03-03 20:18:20,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:18:20,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:18:20,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:18:20,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:18:20,858 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:18:20,858 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86362510] [2022-03-03 20:18:20,858 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86362510] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:18:20,858 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:18:20,858 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:18:20,859 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651785494] [2022-03-03 20:18:20,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:18:20,860 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:18:20,860 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:18:20,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:18:20,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:18:20,860 INFO L87 Difference]: Start difference. First operand 3388 states and 11382 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:21,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:18:21,910 INFO L93 Difference]: Finished difference Result 3774 states and 12450 transitions. [2022-03-03 20:18:21,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-03-03 20:18:21,910 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:18:21,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:18:21,918 INFO L225 Difference]: With dead ends: 3774 [2022-03-03 20:18:21,918 INFO L226 Difference]: Without dead ends: 3719 [2022-03-03 20:18:21,918 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 362 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=186, Invalid=1706, Unknown=0, NotChecked=0, Total=1892 [2022-03-03 20:18:21,919 INFO L933 BasicCegarLoop]: 103 mSDtfsCounter, 211 mSDsluCounter, 1219 mSDsCounter, 0 mSdLazyCounter, 1644 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 947 SdHoareTripleChecker+Invalid, 1674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1644 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:18:21,919 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [211 Valid, 947 Invalid, 1674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1644 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:18:21,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3719 states. [2022-03-03 20:18:21,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3719 to 3388. [2022-03-03 20:18:21,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3388 states, 3387 states have (on average 3.359905521110127) internal successors, (11380), 3387 states have internal predecessors, (11380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:21,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3388 states to 3388 states and 11380 transitions. [2022-03-03 20:18:21,981 INFO L78 Accepts]: Start accepts. Automaton has 3388 states and 11380 transitions. Word has length 39 [2022-03-03 20:18:21,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:18:21,981 INFO L470 AbstractCegarLoop]: Abstraction has 3388 states and 11380 transitions. [2022-03-03 20:18:21,981 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:21,981 INFO L276 IsEmpty]: Start isEmpty. Operand 3388 states and 11380 transitions. [2022-03-03 20:18:21,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:18:21,987 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:18:21,987 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:18:21,987 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-03 20:18:21,987 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:18:21,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:18:21,987 INFO L85 PathProgramCache]: Analyzing trace with hash -1194964014, now seen corresponding path program 19 times [2022-03-03 20:18:21,988 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:18:21,988 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031152542] [2022-03-03 20:18:21,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:18:21,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:18:22,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:18:22,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:18:22,270 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:18:22,270 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031152542] [2022-03-03 20:18:22,270 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031152542] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:18:22,270 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:18:22,270 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:18:22,270 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812818525] [2022-03-03 20:18:22,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:18:22,271 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:18:22,271 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:18:22,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:18:22,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:18:22,272 INFO L87 Difference]: Start difference. First operand 3388 states and 11380 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:23,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:18:23,320 INFO L93 Difference]: Finished difference Result 3744 states and 12389 transitions. [2022-03-03 20:18:23,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-03-03 20:18:23,320 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:18:23,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:18:23,328 INFO L225 Difference]: With dead ends: 3744 [2022-03-03 20:18:23,329 INFO L226 Difference]: Without dead ends: 3684 [2022-03-03 20:18:23,329 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 365 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=189, Invalid=1703, Unknown=0, NotChecked=0, Total=1892 [2022-03-03 20:18:23,330 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 221 mSDsluCounter, 1117 mSDsCounter, 0 mSdLazyCounter, 1537 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 890 SdHoareTripleChecker+Invalid, 1570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1537 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:18:23,330 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [221 Valid, 890 Invalid, 1570 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1537 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:18:23,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3684 states. [2022-03-03 20:18:23,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3684 to 3386. [2022-03-03 20:18:23,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3386 states, 3385 states have (on average 3.360413589364845) internal successors, (11375), 3385 states have internal predecessors, (11375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:23,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3386 states to 3386 states and 11375 transitions. [2022-03-03 20:18:23,392 INFO L78 Accepts]: Start accepts. Automaton has 3386 states and 11375 transitions. Word has length 39 [2022-03-03 20:18:23,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:18:23,392 INFO L470 AbstractCegarLoop]: Abstraction has 3386 states and 11375 transitions. [2022-03-03 20:18:23,392 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:23,392 INFO L276 IsEmpty]: Start isEmpty. Operand 3386 states and 11375 transitions. [2022-03-03 20:18:23,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:18:23,398 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:18:23,398 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:18:23,398 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-03 20:18:23,398 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:18:23,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:18:23,398 INFO L85 PathProgramCache]: Analyzing trace with hash 1020436740, now seen corresponding path program 20 times [2022-03-03 20:18:23,398 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:18:23,398 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101158383] [2022-03-03 20:18:23,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:18:23,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:18:23,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:18:23,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:18:23,698 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:18:23,698 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101158383] [2022-03-03 20:18:23,698 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101158383] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:18:23,698 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:18:23,698 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 20:18:23,698 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175293371] [2022-03-03 20:18:23,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:18:23,698 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-03-03 20:18:23,698 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:18:23,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-03-03 20:18:23,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2022-03-03 20:18:23,699 INFO L87 Difference]: Start difference. First operand 3386 states and 11375 transitions. Second operand has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:24,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:18:24,652 INFO L93 Difference]: Finished difference Result 3655 states and 12176 transitions. [2022-03-03 20:18:24,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-03 20:18:24,652 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:18:24,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:18:24,660 INFO L225 Difference]: With dead ends: 3655 [2022-03-03 20:18:24,661 INFO L226 Difference]: Without dead ends: 3579 [2022-03-03 20:18:24,661 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 287 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=164, Invalid=1396, Unknown=0, NotChecked=0, Total=1560 [2022-03-03 20:18:24,661 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 176 mSDsluCounter, 990 mSDsCounter, 0 mSdLazyCounter, 1399 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 803 SdHoareTripleChecker+Invalid, 1427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:18:24,662 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [176 Valid, 803 Invalid, 1427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1399 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:18:24,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3579 states. [2022-03-03 20:18:24,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3579 to 3394. [2022-03-03 20:18:24,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3394 states, 3393 states have (on average 3.357206012378426) internal successors, (11391), 3393 states have internal predecessors, (11391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:24,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3394 states to 3394 states and 11391 transitions. [2022-03-03 20:18:24,709 INFO L78 Accepts]: Start accepts. Automaton has 3394 states and 11391 transitions. Word has length 39 [2022-03-03 20:18:24,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:18:24,710 INFO L470 AbstractCegarLoop]: Abstraction has 3394 states and 11391 transitions. [2022-03-03 20:18:24,710 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:24,710 INFO L276 IsEmpty]: Start isEmpty. Operand 3394 states and 11391 transitions. [2022-03-03 20:18:24,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:18:24,715 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:18:24,715 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:18:24,715 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-03 20:18:24,715 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:18:24,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:18:24,717 INFO L85 PathProgramCache]: Analyzing trace with hash 2383128, now seen corresponding path program 21 times [2022-03-03 20:18:24,717 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:18:24,717 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755254191] [2022-03-03 20:18:24,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:18:24,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:18:24,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:18:24,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:18:24,945 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:18:24,945 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755254191] [2022-03-03 20:18:24,945 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755254191] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:18:24,945 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:18:24,945 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:18:24,945 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760148813] [2022-03-03 20:18:24,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:18:24,946 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:18:24,946 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:18:24,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:18:24,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:18:24,946 INFO L87 Difference]: Start difference. First operand 3394 states and 11391 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:25,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:18:25,779 INFO L93 Difference]: Finished difference Result 3637 states and 12122 transitions. [2022-03-03 20:18:25,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-03-03 20:18:25,779 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:18:25,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:18:25,787 INFO L225 Difference]: With dead ends: 3637 [2022-03-03 20:18:25,787 INFO L226 Difference]: Without dead ends: 3559 [2022-03-03 20:18:25,788 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 336 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=180, Invalid=1626, Unknown=0, NotChecked=0, Total=1806 [2022-03-03 20:18:25,788 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 206 mSDsluCounter, 1081 mSDsCounter, 0 mSdLazyCounter, 1478 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 890 SdHoareTripleChecker+Invalid, 1510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:18:25,788 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [206 Valid, 890 Invalid, 1510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1478 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:18:25,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3559 states. [2022-03-03 20:18:25,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3559 to 3374. [2022-03-03 20:18:25,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3374 states, 3373 states have (on average 3.3628817076786244) internal successors, (11343), 3373 states have internal predecessors, (11343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:25,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3374 states to 3374 states and 11343 transitions. [2022-03-03 20:18:25,877 INFO L78 Accepts]: Start accepts. Automaton has 3374 states and 11343 transitions. Word has length 39 [2022-03-03 20:18:25,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:18:25,877 INFO L470 AbstractCegarLoop]: Abstraction has 3374 states and 11343 transitions. [2022-03-03 20:18:25,877 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:25,877 INFO L276 IsEmpty]: Start isEmpty. Operand 3374 states and 11343 transitions. [2022-03-03 20:18:25,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:18:25,883 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:18:25,883 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:18:25,883 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-03 20:18:25,883 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:18:25,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:18:25,884 INFO L85 PathProgramCache]: Analyzing trace with hash 1886494842, now seen corresponding path program 22 times [2022-03-03 20:18:25,884 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:18:25,884 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278067927] [2022-03-03 20:18:25,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:18:25,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:18:25,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:18:26,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:18:26,138 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:18:26,138 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278067927] [2022-03-03 20:18:26,138 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278067927] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:18:26,138 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:18:26,138 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:18:26,138 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295001546] [2022-03-03 20:18:26,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:18:26,138 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:18:26,138 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:18:26,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:18:26,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:18:26,139 INFO L87 Difference]: Start difference. First operand 3374 states and 11343 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:27,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:18:27,080 INFO L93 Difference]: Finished difference Result 3817 states and 12701 transitions. [2022-03-03 20:18:27,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-03-03 20:18:27,099 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:18:27,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:18:27,107 INFO L225 Difference]: With dead ends: 3817 [2022-03-03 20:18:27,107 INFO L226 Difference]: Without dead ends: 3750 [2022-03-03 20:18:27,108 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 308 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=179, Invalid=1543, Unknown=0, NotChecked=0, Total=1722 [2022-03-03 20:18:27,120 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 195 mSDsluCounter, 1093 mSDsCounter, 0 mSdLazyCounter, 1554 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 919 SdHoareTripleChecker+Invalid, 1586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1554 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:18:27,120 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [195 Valid, 919 Invalid, 1586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1554 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:18:27,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3750 states. [2022-03-03 20:18:27,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3750 to 3406. [2022-03-03 20:18:27,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3406 states, 3405 states have (on average 3.358883994126285) internal successors, (11437), 3405 states have internal predecessors, (11437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:27,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3406 states to 3406 states and 11437 transitions. [2022-03-03 20:18:27,170 INFO L78 Accepts]: Start accepts. Automaton has 3406 states and 11437 transitions. Word has length 39 [2022-03-03 20:18:27,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:18:27,171 INFO L470 AbstractCegarLoop]: Abstraction has 3406 states and 11437 transitions. [2022-03-03 20:18:27,171 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:27,171 INFO L276 IsEmpty]: Start isEmpty. Operand 3406 states and 11437 transitions. [2022-03-03 20:18:27,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:18:27,177 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:18:27,177 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:18:27,177 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-03 20:18:27,177 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:18:27,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:18:27,178 INFO L85 PathProgramCache]: Analyzing trace with hash 166878872, now seen corresponding path program 23 times [2022-03-03 20:18:27,178 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:18:27,178 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874817004] [2022-03-03 20:18:27,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:18:27,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:18:27,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:18:27,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:18:27,413 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:18:27,413 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874817004] [2022-03-03 20:18:27,413 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874817004] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:18:27,413 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:18:27,413 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:18:27,413 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99802818] [2022-03-03 20:18:27,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:18:27,413 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:18:27,414 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:18:27,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:18:27,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:18:27,414 INFO L87 Difference]: Start difference. First operand 3406 states and 11437 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:28,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:18:28,605 INFO L93 Difference]: Finished difference Result 3906 states and 12902 transitions. [2022-03-03 20:18:28,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-03-03 20:18:28,605 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:18:28,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:18:28,613 INFO L225 Difference]: With dead ends: 3906 [2022-03-03 20:18:28,613 INFO L226 Difference]: Without dead ends: 3863 [2022-03-03 20:18:28,614 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 563 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=249, Invalid=2301, Unknown=0, NotChecked=0, Total=2550 [2022-03-03 20:18:28,615 INFO L933 BasicCegarLoop]: 105 mSDtfsCounter, 253 mSDsluCounter, 1222 mSDsCounter, 0 mSdLazyCounter, 1795 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 1018 SdHoareTripleChecker+Invalid, 1835 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1795 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:18:28,615 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [253 Valid, 1018 Invalid, 1835 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1795 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:18:28,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3863 states. [2022-03-03 20:18:28,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3863 to 3412. [2022-03-03 20:18:28,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3412 states, 3411 states have (on average 3.3567868660216944) internal successors, (11450), 3411 states have internal predecessors, (11450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:28,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3412 states to 3412 states and 11450 transitions. [2022-03-03 20:18:28,673 INFO L78 Accepts]: Start accepts. Automaton has 3412 states and 11450 transitions. Word has length 39 [2022-03-03 20:18:28,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:18:28,673 INFO L470 AbstractCegarLoop]: Abstraction has 3412 states and 11450 transitions. [2022-03-03 20:18:28,673 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:28,673 INFO L276 IsEmpty]: Start isEmpty. Operand 3412 states and 11450 transitions. [2022-03-03 20:18:28,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:18:28,693 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:18:28,694 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:18:28,694 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-03 20:18:28,694 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:18:28,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:18:28,695 INFO L85 PathProgramCache]: Analyzing trace with hash -1613719430, now seen corresponding path program 24 times [2022-03-03 20:18:28,695 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:18:28,695 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729771008] [2022-03-03 20:18:28,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:18:28,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:18:28,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:18:28,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:18:28,950 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:18:28,950 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729771008] [2022-03-03 20:18:28,950 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729771008] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:18:28,950 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:18:28,950 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:18:28,950 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617185493] [2022-03-03 20:18:28,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:18:28,951 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:18:28,951 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:18:28,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:18:28,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:18:28,951 INFO L87 Difference]: Start difference. First operand 3412 states and 11450 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:30,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:18:30,166 INFO L93 Difference]: Finished difference Result 3861 states and 12798 transitions. [2022-03-03 20:18:30,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-03-03 20:18:30,167 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:18:30,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:18:30,174 INFO L225 Difference]: With dead ends: 3861 [2022-03-03 20:18:30,174 INFO L226 Difference]: Without dead ends: 3797 [2022-03-03 20:18:30,175 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 529 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=240, Invalid=2210, Unknown=0, NotChecked=0, Total=2450 [2022-03-03 20:18:30,176 INFO L933 BasicCegarLoop]: 103 mSDtfsCounter, 243 mSDsluCounter, 1194 mSDsCounter, 0 mSdLazyCounter, 1761 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 1002 SdHoareTripleChecker+Invalid, 1797 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1761 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:18:30,176 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [243 Valid, 1002 Invalid, 1797 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1761 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:18:30,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3797 states. [2022-03-03 20:18:30,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3797 to 3394. [2022-03-03 20:18:30,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3394 states, 3393 states have (on average 3.361921603300914) internal successors, (11407), 3393 states have internal predecessors, (11407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:30,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3394 states to 3394 states and 11407 transitions. [2022-03-03 20:18:30,225 INFO L78 Accepts]: Start accepts. Automaton has 3394 states and 11407 transitions. Word has length 39 [2022-03-03 20:18:30,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:18:30,225 INFO L470 AbstractCegarLoop]: Abstraction has 3394 states and 11407 transitions. [2022-03-03 20:18:30,225 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:30,225 INFO L276 IsEmpty]: Start isEmpty. Operand 3394 states and 11407 transitions. [2022-03-03 20:18:30,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:18:30,230 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:18:30,230 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:18:30,231 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-03 20:18:30,231 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:18:30,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:18:30,231 INFO L85 PathProgramCache]: Analyzing trace with hash -993285030, now seen corresponding path program 25 times [2022-03-03 20:18:30,231 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:18:30,231 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185176779] [2022-03-03 20:18:30,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:18:30,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:18:30,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:18:30,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:18:30,488 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:18:30,488 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185176779] [2022-03-03 20:18:30,488 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185176779] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:18:30,488 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:18:30,488 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:18:30,489 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470838087] [2022-03-03 20:18:30,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:18:30,489 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:18:30,489 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:18:30,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:18:30,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:18:30,489 INFO L87 Difference]: Start difference. First operand 3394 states and 11407 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:31,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:18:31,328 INFO L93 Difference]: Finished difference Result 3817 states and 12695 transitions. [2022-03-03 20:18:31,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-03-03 20:18:31,329 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:18:31,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:18:31,337 INFO L225 Difference]: With dead ends: 3817 [2022-03-03 20:18:31,337 INFO L226 Difference]: Without dead ends: 3750 [2022-03-03 20:18:31,338 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 284 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=169, Invalid=1471, Unknown=0, NotChecked=0, Total=1640 [2022-03-03 20:18:31,338 INFO L933 BasicCegarLoop]: 105 mSDtfsCounter, 183 mSDsluCounter, 1135 mSDsCounter, 0 mSdLazyCounter, 1606 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 953 SdHoareTripleChecker+Invalid, 1632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1606 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:18:31,338 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [183 Valid, 953 Invalid, 1632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1606 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:18:31,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3750 states. [2022-03-03 20:18:31,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3750 to 3402. [2022-03-03 20:18:31,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3402 states, 3401 states have (on average 3.358718024110556) internal successors, (11423), 3401 states have internal predecessors, (11423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:31,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3402 states to 3402 states and 11423 transitions. [2022-03-03 20:18:31,392 INFO L78 Accepts]: Start accepts. Automaton has 3402 states and 11423 transitions. Word has length 39 [2022-03-03 20:18:31,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:18:31,392 INFO L470 AbstractCegarLoop]: Abstraction has 3402 states and 11423 transitions. [2022-03-03 20:18:31,392 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:31,392 INFO L276 IsEmpty]: Start isEmpty. Operand 3402 states and 11423 transitions. [2022-03-03 20:18:31,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:18:31,398 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:18:31,398 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:18:31,398 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-03 20:18:31,398 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:18:31,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:18:31,398 INFO L85 PathProgramCache]: Analyzing trace with hash -1123879878, now seen corresponding path program 26 times [2022-03-03 20:18:31,398 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:18:31,398 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158417317] [2022-03-03 20:18:31,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:18:31,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:18:31,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:18:31,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:18:31,656 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:18:31,656 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158417317] [2022-03-03 20:18:31,656 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158417317] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:18:31,657 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:18:31,657 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:18:31,657 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047202057] [2022-03-03 20:18:31,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:18:31,657 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:18:31,657 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:18:31,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:18:31,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:18:31,657 INFO L87 Difference]: Start difference. First operand 3402 states and 11423 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:32,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:18:32,695 INFO L93 Difference]: Finished difference Result 3805 states and 12655 transitions. [2022-03-03 20:18:32,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-03-03 20:18:32,695 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:18:32,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:18:32,702 INFO L225 Difference]: With dead ends: 3805 [2022-03-03 20:18:32,702 INFO L226 Difference]: Without dead ends: 3742 [2022-03-03 20:18:32,702 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 336 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=183, Invalid=1623, Unknown=0, NotChecked=0, Total=1806 [2022-03-03 20:18:32,703 INFO L933 BasicCegarLoop]: 106 mSDtfsCounter, 189 mSDsluCounter, 1157 mSDsCounter, 0 mSdLazyCounter, 1619 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 977 SdHoareTripleChecker+Invalid, 1650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1619 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:18:32,703 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [189 Valid, 977 Invalid, 1650 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1619 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:18:32,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3742 states. [2022-03-03 20:18:32,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3742 to 3394. [2022-03-03 20:18:32,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3394 states, 3393 states have (on average 3.3607427055702916) internal successors, (11403), 3393 states have internal predecessors, (11403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:32,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3394 states to 3394 states and 11403 transitions. [2022-03-03 20:18:32,748 INFO L78 Accepts]: Start accepts. Automaton has 3394 states and 11403 transitions. Word has length 39 [2022-03-03 20:18:32,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:18:32,748 INFO L470 AbstractCegarLoop]: Abstraction has 3394 states and 11403 transitions. [2022-03-03 20:18:32,748 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:32,749 INFO L276 IsEmpty]: Start isEmpty. Operand 3394 states and 11403 transitions. [2022-03-03 20:18:32,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:18:32,755 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:18:32,755 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:18:32,755 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-03 20:18:32,755 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:18:32,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:18:32,755 INFO L85 PathProgramCache]: Analyzing trace with hash -1259558470, now seen corresponding path program 27 times [2022-03-03 20:18:32,755 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:18:32,755 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461643233] [2022-03-03 20:18:32,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:18:32,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:18:32,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:18:33,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:18:33,021 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:18:33,021 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461643233] [2022-03-03 20:18:33,021 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461643233] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:18:33,021 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:18:33,021 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:18:33,021 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331400618] [2022-03-03 20:18:33,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:18:33,022 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:18:33,022 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:18:33,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:18:33,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:18:33,022 INFO L87 Difference]: Start difference. First operand 3394 states and 11403 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:34,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:18:34,278 INFO L93 Difference]: Finished difference Result 3972 states and 13056 transitions. [2022-03-03 20:18:34,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-03-03 20:18:34,278 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:18:34,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:18:34,286 INFO L225 Difference]: With dead ends: 3972 [2022-03-03 20:18:34,286 INFO L226 Difference]: Without dead ends: 3929 [2022-03-03 20:18:34,287 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 632 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=268, Invalid=2488, Unknown=0, NotChecked=0, Total=2756 [2022-03-03 20:18:34,288 INFO L933 BasicCegarLoop]: 107 mSDtfsCounter, 254 mSDsluCounter, 1247 mSDsCounter, 0 mSdLazyCounter, 1833 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 1033 SdHoareTripleChecker+Invalid, 1876 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 1833 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:18:34,288 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [254 Valid, 1033 Invalid, 1876 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 1833 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:18:34,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3929 states. [2022-03-03 20:18:34,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3929 to 3402. [2022-03-03 20:18:34,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3402 states, 3401 states have (on average 3.358718024110556) internal successors, (11423), 3401 states have internal predecessors, (11423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:34,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3402 states to 3402 states and 11423 transitions. [2022-03-03 20:18:34,338 INFO L78 Accepts]: Start accepts. Automaton has 3402 states and 11423 transitions. Word has length 39 [2022-03-03 20:18:34,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:18:34,338 INFO L470 AbstractCegarLoop]: Abstraction has 3402 states and 11423 transitions. [2022-03-03 20:18:34,338 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:34,338 INFO L276 IsEmpty]: Start isEmpty. Operand 3402 states and 11423 transitions. [2022-03-03 20:18:34,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:18:34,343 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:18:34,343 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:18:34,343 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-03 20:18:34,344 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:18:34,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:18:34,344 INFO L85 PathProgramCache]: Analyzing trace with hash 1254810524, now seen corresponding path program 28 times [2022-03-03 20:18:34,344 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:18:34,344 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568712828] [2022-03-03 20:18:34,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:18:34,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:18:34,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:18:34,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:18:34,591 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:18:34,591 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568712828] [2022-03-03 20:18:34,592 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568712828] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:18:34,592 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:18:34,592 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:18:34,592 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363688087] [2022-03-03 20:18:34,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:18:34,592 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:18:34,592 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:18:34,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:18:34,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:18:34,593 INFO L87 Difference]: Start difference. First operand 3402 states and 11423 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:35,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:18:35,885 INFO L93 Difference]: Finished difference Result 3960 states and 13018 transitions. [2022-03-03 20:18:35,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-03 20:18:35,886 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:18:35,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:18:35,893 INFO L225 Difference]: With dead ends: 3960 [2022-03-03 20:18:35,893 INFO L226 Difference]: Without dead ends: 3908 [2022-03-03 20:18:35,894 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 596 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=260, Invalid=2392, Unknown=0, NotChecked=0, Total=2652 [2022-03-03 20:18:35,894 INFO L933 BasicCegarLoop]: 105 mSDtfsCounter, 253 mSDsluCounter, 1222 mSDsCounter, 0 mSdLazyCounter, 1805 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 1018 SdHoareTripleChecker+Invalid, 1843 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1805 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:18:35,894 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [253 Valid, 1018 Invalid, 1843 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1805 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:18:35,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3908 states. [2022-03-03 20:18:35,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3908 to 3396. [2022-03-03 20:18:35,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3396 states, 3395 states have (on average 3.360235640648012) internal successors, (11408), 3395 states have internal predecessors, (11408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:35,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3396 states to 3396 states and 11408 transitions. [2022-03-03 20:18:35,946 INFO L78 Accepts]: Start accepts. Automaton has 3396 states and 11408 transitions. Word has length 39 [2022-03-03 20:18:35,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:18:35,946 INFO L470 AbstractCegarLoop]: Abstraction has 3396 states and 11408 transitions. [2022-03-03 20:18:35,946 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:35,946 INFO L276 IsEmpty]: Start isEmpty. Operand 3396 states and 11408 transitions. [2022-03-03 20:18:35,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:18:35,951 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:18:35,951 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:18:35,951 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-03 20:18:35,951 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:18:35,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:18:35,952 INFO L85 PathProgramCache]: Analyzing trace with hash -341074900, now seen corresponding path program 29 times [2022-03-03 20:18:35,952 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:18:35,952 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415838382] [2022-03-03 20:18:35,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:18:35,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:18:35,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:18:36,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:18:36,186 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:18:36,186 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415838382] [2022-03-03 20:18:36,186 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415838382] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:18:36,186 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:18:36,186 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:18:36,186 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775560254] [2022-03-03 20:18:36,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:18:36,187 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:18:36,187 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:18:36,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:18:36,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:18:36,187 INFO L87 Difference]: Start difference. First operand 3396 states and 11408 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:37,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:18:37,119 INFO L93 Difference]: Finished difference Result 3933 states and 12929 transitions. [2022-03-03 20:18:37,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 20:18:37,119 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:18:37,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:18:37,127 INFO L225 Difference]: With dead ends: 3933 [2022-03-03 20:18:37,127 INFO L226 Difference]: Without dead ends: 3878 [2022-03-03 20:18:37,128 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 414 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=212, Invalid=1858, Unknown=0, NotChecked=0, Total=2070 [2022-03-03 20:18:37,129 INFO L933 BasicCegarLoop]: 105 mSDtfsCounter, 216 mSDsluCounter, 1201 mSDsCounter, 0 mSdLazyCounter, 1667 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 986 SdHoareTripleChecker+Invalid, 1703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1667 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:18:37,129 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [216 Valid, 986 Invalid, 1703 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1667 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:18:37,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3878 states. [2022-03-03 20:18:37,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3878 to 3396. [2022-03-03 20:18:37,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3396 states, 3395 states have (on average 3.3596465390279824) internal successors, (11406), 3395 states have internal predecessors, (11406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:37,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3396 states to 3396 states and 11406 transitions. [2022-03-03 20:18:37,180 INFO L78 Accepts]: Start accepts. Automaton has 3396 states and 11406 transitions. Word has length 39 [2022-03-03 20:18:37,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:18:37,180 INFO L470 AbstractCegarLoop]: Abstraction has 3396 states and 11406 transitions. [2022-03-03 20:18:37,180 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:37,180 INFO L276 IsEmpty]: Start isEmpty. Operand 3396 states and 11406 transitions. [2022-03-03 20:18:37,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:18:37,185 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:18:37,185 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:18:37,185 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-03 20:18:37,186 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:18:37,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:18:37,186 INFO L85 PathProgramCache]: Analyzing trace with hash 831577322, now seen corresponding path program 30 times [2022-03-03 20:18:37,186 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:18:37,186 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181330687] [2022-03-03 20:18:37,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:18:37,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:18:37,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:18:37,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:18:37,425 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:18:37,426 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181330687] [2022-03-03 20:18:37,426 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181330687] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:18:37,426 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:18:37,426 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:18:37,426 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642215495] [2022-03-03 20:18:37,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:18:37,426 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:18:37,426 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:18:37,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:18:37,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:18:37,427 INFO L87 Difference]: Start difference. First operand 3396 states and 11406 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:38,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:18:38,477 INFO L93 Difference]: Finished difference Result 3868 states and 12777 transitions. [2022-03-03 20:18:38,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-03-03 20:18:38,477 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:18:38,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:18:38,485 INFO L225 Difference]: With dead ends: 3868 [2022-03-03 20:18:38,485 INFO L226 Difference]: Without dead ends: 3822 [2022-03-03 20:18:38,485 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 330 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=187, Invalid=1619, Unknown=0, NotChecked=0, Total=1806 [2022-03-03 20:18:38,486 INFO L933 BasicCegarLoop]: 103 mSDtfsCounter, 207 mSDsluCounter, 1201 mSDsCounter, 0 mSdLazyCounter, 1630 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 985 SdHoareTripleChecker+Invalid, 1655 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1630 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:18:38,486 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [207 Valid, 985 Invalid, 1655 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1630 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:18:38,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3822 states. [2022-03-03 20:18:38,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3822 to 3400. [2022-03-03 20:18:38,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3400 states, 3399 states have (on average 3.3580464842600763) internal successors, (11414), 3399 states have internal predecessors, (11414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:38,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3400 states to 3400 states and 11414 transitions. [2022-03-03 20:18:38,575 INFO L78 Accepts]: Start accepts. Automaton has 3400 states and 11414 transitions. Word has length 39 [2022-03-03 20:18:38,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:18:38,575 INFO L470 AbstractCegarLoop]: Abstraction has 3400 states and 11414 transitions. [2022-03-03 20:18:38,575 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:38,575 INFO L276 IsEmpty]: Start isEmpty. Operand 3400 states and 11414 transitions. [2022-03-03 20:18:38,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:18:38,580 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:18:38,580 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:18:38,580 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-03 20:18:38,581 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:18:38,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:18:38,581 INFO L85 PathProgramCache]: Analyzing trace with hash 584111160, now seen corresponding path program 31 times [2022-03-03 20:18:38,581 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:18:38,581 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653509803] [2022-03-03 20:18:38,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:18:38,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:18:38,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:18:38,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:18:38,850 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:18:38,850 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653509803] [2022-03-03 20:18:38,850 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653509803] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:18:38,850 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:18:38,850 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:18:38,850 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175480366] [2022-03-03 20:18:38,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:18:38,851 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:18:38,851 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:18:38,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:18:38,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:18:38,851 INFO L87 Difference]: Start difference. First operand 3400 states and 11414 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:39,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:18:39,750 INFO L93 Difference]: Finished difference Result 3840 states and 12726 transitions. [2022-03-03 20:18:39,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 20:18:39,750 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:18:39,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:18:39,758 INFO L225 Difference]: With dead ends: 3840 [2022-03-03 20:18:39,758 INFO L226 Difference]: Without dead ends: 3791 [2022-03-03 20:18:39,759 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 437 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=218, Invalid=1944, Unknown=0, NotChecked=0, Total=2162 [2022-03-03 20:18:39,759 INFO L933 BasicCegarLoop]: 110 mSDtfsCounter, 210 mSDsluCounter, 1250 mSDsCounter, 0 mSdLazyCounter, 1676 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 1062 SdHoareTripleChecker+Invalid, 1710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1676 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:18:39,759 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [210 Valid, 1062 Invalid, 1710 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1676 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:18:39,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3791 states. [2022-03-03 20:18:39,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3791 to 3390. [2022-03-03 20:18:39,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3390 states, 3389 states have (on average 3.361758630864562) internal successors, (11393), 3389 states have internal predecessors, (11393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:39,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3390 states to 3390 states and 11393 transitions. [2022-03-03 20:18:39,812 INFO L78 Accepts]: Start accepts. Automaton has 3390 states and 11393 transitions. Word has length 39 [2022-03-03 20:18:39,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:18:39,812 INFO L470 AbstractCegarLoop]: Abstraction has 3390 states and 11393 transitions. [2022-03-03 20:18:39,813 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:39,813 INFO L276 IsEmpty]: Start isEmpty. Operand 3390 states and 11393 transitions. [2022-03-03 20:18:39,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:18:39,818 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:18:39,818 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:18:39,819 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-03 20:18:39,819 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:18:39,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:18:39,819 INFO L85 PathProgramCache]: Analyzing trace with hash 2122986682, now seen corresponding path program 32 times [2022-03-03 20:18:39,819 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:18:39,819 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607162880] [2022-03-03 20:18:39,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:18:39,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:18:39,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:18:40,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:18:40,036 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:18:40,036 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607162880] [2022-03-03 20:18:40,036 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607162880] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:18:40,037 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:18:40,037 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:18:40,037 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772837642] [2022-03-03 20:18:40,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:18:40,037 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:18:40,037 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:18:40,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:18:40,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:18:40,038 INFO L87 Difference]: Start difference. First operand 3390 states and 11393 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:40,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:18:40,735 INFO L93 Difference]: Finished difference Result 3789 states and 12635 transitions. [2022-03-03 20:18:40,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-03 20:18:40,736 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:18:40,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:18:40,743 INFO L225 Difference]: With dead ends: 3789 [2022-03-03 20:18:40,743 INFO L226 Difference]: Without dead ends: 3722 [2022-03-03 20:18:40,744 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=145, Invalid=1261, Unknown=0, NotChecked=0, Total=1406 [2022-03-03 20:18:40,745 INFO L933 BasicCegarLoop]: 112 mSDtfsCounter, 178 mSDsluCounter, 1143 mSDsCounter, 0 mSdLazyCounter, 1707 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 980 SdHoareTripleChecker+Invalid, 1725 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1707 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 20:18:40,745 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [178 Valid, 980 Invalid, 1725 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1707 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 20:18:40,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3722 states. [2022-03-03 20:18:40,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3722 to 3430. [2022-03-03 20:18:40,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3430 states, 3429 states have (on average 3.3540390784485274) internal successors, (11501), 3429 states have internal predecessors, (11501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:40,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3430 states to 3430 states and 11501 transitions. [2022-03-03 20:18:40,810 INFO L78 Accepts]: Start accepts. Automaton has 3430 states and 11501 transitions. Word has length 39 [2022-03-03 20:18:40,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:18:40,810 INFO L470 AbstractCegarLoop]: Abstraction has 3430 states and 11501 transitions. [2022-03-03 20:18:40,810 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:40,810 INFO L276 IsEmpty]: Start isEmpty. Operand 3430 states and 11501 transitions. [2022-03-03 20:18:40,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:18:40,815 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:18:40,815 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:18:40,815 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-03 20:18:40,816 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:18:40,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:18:40,816 INFO L85 PathProgramCache]: Analyzing trace with hash 1992391834, now seen corresponding path program 33 times [2022-03-03 20:18:40,816 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:18:40,816 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655312532] [2022-03-03 20:18:40,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:18:40,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:18:40,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:18:40,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:18:40,999 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:18:41,000 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655312532] [2022-03-03 20:18:41,000 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655312532] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:18:41,000 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:18:41,000 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:18:41,000 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269188744] [2022-03-03 20:18:41,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:18:41,000 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:18:41,000 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:18:41,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:18:41,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:18:41,000 INFO L87 Difference]: Start difference. First operand 3430 states and 11501 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:41,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:18:41,723 INFO L93 Difference]: Finished difference Result 3777 states and 12595 transitions. [2022-03-03 20:18:41,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 20:18:41,723 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:18:41,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:18:41,731 INFO L225 Difference]: With dead ends: 3777 [2022-03-03 20:18:41,731 INFO L226 Difference]: Without dead ends: 3714 [2022-03-03 20:18:41,731 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=153, Invalid=1329, Unknown=0, NotChecked=0, Total=1482 [2022-03-03 20:18:41,732 INFO L933 BasicCegarLoop]: 112 mSDtfsCounter, 189 mSDsluCounter, 1135 mSDsCounter, 0 mSdLazyCounter, 1691 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 985 SdHoareTripleChecker+Invalid, 1716 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1691 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 20:18:41,732 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [189 Valid, 985 Invalid, 1716 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1691 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 20:18:41,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3714 states. [2022-03-03 20:18:41,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3714 to 3422. [2022-03-03 20:18:41,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3422 states, 3421 states have (on average 3.3548669979538146) internal successors, (11477), 3421 states have internal predecessors, (11477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:41,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3422 states to 3422 states and 11477 transitions. [2022-03-03 20:18:41,786 INFO L78 Accepts]: Start accepts. Automaton has 3422 states and 11477 transitions. Word has length 39 [2022-03-03 20:18:41,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:18:41,786 INFO L470 AbstractCegarLoop]: Abstraction has 3422 states and 11477 transitions. [2022-03-03 20:18:41,786 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:41,786 INFO L276 IsEmpty]: Start isEmpty. Operand 3422 states and 11477 transitions. [2022-03-03 20:18:41,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:18:41,791 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:18:41,791 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:18:41,792 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-03 20:18:41,792 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:18:41,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:18:41,792 INFO L85 PathProgramCache]: Analyzing trace with hash 1462491386, now seen corresponding path program 34 times [2022-03-03 20:18:41,792 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:18:41,792 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716565835] [2022-03-03 20:18:41,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:18:41,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:18:41,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:18:41,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:18:41,985 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:18:41,985 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716565835] [2022-03-03 20:18:41,985 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716565835] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:18:41,985 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:18:41,985 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:18:41,985 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107471148] [2022-03-03 20:18:41,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:18:41,986 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:18:41,986 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:18:41,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:18:41,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:18:41,986 INFO L87 Difference]: Start difference. First operand 3422 states and 11477 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:42,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:18:42,675 INFO L93 Difference]: Finished difference Result 3789 states and 12623 transitions. [2022-03-03 20:18:42,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 20:18:42,675 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:18:42,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:18:42,683 INFO L225 Difference]: With dead ends: 3789 [2022-03-03 20:18:42,683 INFO L226 Difference]: Without dead ends: 3666 [2022-03-03 20:18:42,684 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 261 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=159, Invalid=1401, Unknown=0, NotChecked=0, Total=1560 [2022-03-03 20:18:42,684 INFO L933 BasicCegarLoop]: 117 mSDtfsCounter, 188 mSDsluCounter, 1192 mSDsCounter, 0 mSdLazyCounter, 1700 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 1048 SdHoareTripleChecker+Invalid, 1722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1700 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 20:18:42,685 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [188 Valid, 1048 Invalid, 1722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1700 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 20:18:42,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3666 states. [2022-03-03 20:18:42,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3666 to 3390. [2022-03-03 20:18:42,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3390 states, 3389 states have (on average 3.3570374741811744) internal successors, (11377), 3389 states have internal predecessors, (11377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:42,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3390 states to 3390 states and 11377 transitions. [2022-03-03 20:18:42,738 INFO L78 Accepts]: Start accepts. Automaton has 3390 states and 11377 transitions. Word has length 39 [2022-03-03 20:18:42,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:18:42,738 INFO L470 AbstractCegarLoop]: Abstraction has 3390 states and 11377 transitions. [2022-03-03 20:18:42,738 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:42,738 INFO L276 IsEmpty]: Start isEmpty. Operand 3390 states and 11377 transitions. [2022-03-03 20:18:42,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:18:42,743 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:18:42,743 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:18:42,743 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-03 20:18:42,743 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:18:42,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:18:42,744 INFO L85 PathProgramCache]: Analyzing trace with hash 744080216, now seen corresponding path program 35 times [2022-03-03 20:18:42,744 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:18:42,744 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938860465] [2022-03-03 20:18:42,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:18:42,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:18:42,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:18:43,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:18:43,039 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:18:43,039 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938860465] [2022-03-03 20:18:43,039 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938860465] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:18:43,039 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:18:43,039 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:18:43,040 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619370982] [2022-03-03 20:18:43,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:18:43,040 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:18:43,040 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:18:43,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:18:43,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:18:43,040 INFO L87 Difference]: Start difference. First operand 3390 states and 11377 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:44,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:18:44,621 INFO L93 Difference]: Finished difference Result 5596 states and 19001 transitions. [2022-03-03 20:18:44,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-03-03 20:18:44,621 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:18:44,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:18:44,635 INFO L225 Difference]: With dead ends: 5596 [2022-03-03 20:18:44,635 INFO L226 Difference]: Without dead ends: 5553 [2022-03-03 20:18:44,636 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 865 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=309, Invalid=3113, Unknown=0, NotChecked=0, Total=3422 [2022-03-03 20:18:44,636 INFO L933 BasicCegarLoop]: 172 mSDtfsCounter, 421 mSDsluCounter, 1803 mSDsCounter, 0 mSdLazyCounter, 2476 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 421 SdHoareTripleChecker+Valid, 1688 SdHoareTripleChecker+Invalid, 2542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 2476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 20:18:44,637 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [421 Valid, 1688 Invalid, 2542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 2476 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 20:18:44,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5553 states. [2022-03-03 20:18:44,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5553 to 3484. [2022-03-03 20:18:44,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3484 states, 3483 states have (on average 3.3545793855871375) internal successors, (11684), 3483 states have internal predecessors, (11684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:44,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3484 states to 3484 states and 11684 transitions. [2022-03-03 20:18:44,703 INFO L78 Accepts]: Start accepts. Automaton has 3484 states and 11684 transitions. Word has length 39 [2022-03-03 20:18:44,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:18:44,703 INFO L470 AbstractCegarLoop]: Abstraction has 3484 states and 11684 transitions. [2022-03-03 20:18:44,703 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:44,703 INFO L276 IsEmpty]: Start isEmpty. Operand 3484 states and 11684 transitions. [2022-03-03 20:18:44,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:18:44,709 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:18:44,709 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:18:44,709 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-03 20:18:44,709 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:18:44,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:18:44,709 INFO L85 PathProgramCache]: Analyzing trace with hash -1036518086, now seen corresponding path program 36 times [2022-03-03 20:18:44,709 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:18:44,710 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866973681] [2022-03-03 20:18:44,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:18:44,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:18:44,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:18:44,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:18:44,948 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:18:44,948 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866973681] [2022-03-03 20:18:44,948 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866973681] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:18:44,948 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:18:44,948 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:18:44,949 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519092774] [2022-03-03 20:18:44,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:18:44,949 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:18:44,949 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:18:44,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:18:44,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:18:44,949 INFO L87 Difference]: Start difference. First operand 3484 states and 11684 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:46,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:18:46,669 INFO L93 Difference]: Finished difference Result 6457 states and 21931 transitions. [2022-03-03 20:18:46,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-03-03 20:18:46,669 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:18:46,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:18:46,684 INFO L225 Difference]: With dead ends: 6457 [2022-03-03 20:18:46,684 INFO L226 Difference]: Without dead ends: 6405 [2022-03-03 20:18:46,684 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1131 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=351, Invalid=3809, Unknown=0, NotChecked=0, Total=4160 [2022-03-03 20:18:46,685 INFO L933 BasicCegarLoop]: 206 mSDtfsCounter, 463 mSDsluCounter, 2095 mSDsCounter, 0 mSdLazyCounter, 2794 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 463 SdHoareTripleChecker+Valid, 2016 SdHoareTripleChecker+Invalid, 2867 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 2794 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-03 20:18:46,687 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [463 Valid, 2016 Invalid, 2867 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 2794 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-03 20:18:46,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6405 states. [2022-03-03 20:18:46,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6405 to 3478. [2022-03-03 20:18:46,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3478 states, 3477 states have (on average 3.35605406960023) internal successors, (11669), 3477 states have internal predecessors, (11669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:46,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3478 states to 3478 states and 11669 transitions. [2022-03-03 20:18:46,757 INFO L78 Accepts]: Start accepts. Automaton has 3478 states and 11669 transitions. Word has length 39 [2022-03-03 20:18:46,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:18:46,758 INFO L470 AbstractCegarLoop]: Abstraction has 3478 states and 11669 transitions. [2022-03-03 20:18:46,758 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:46,758 INFO L276 IsEmpty]: Start isEmpty. Operand 3478 states and 11669 transitions. [2022-03-03 20:18:46,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:18:46,763 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:18:46,763 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:18:46,763 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-03-03 20:18:46,763 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:18:46,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:18:46,766 INFO L85 PathProgramCache]: Analyzing trace with hash 1662563786, now seen corresponding path program 37 times [2022-03-03 20:18:46,766 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:18:46,766 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101069311] [2022-03-03 20:18:46,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:18:46,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:18:46,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:18:47,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:18:47,002 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:18:47,002 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101069311] [2022-03-03 20:18:47,003 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101069311] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:18:47,003 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:18:47,003 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:18:47,003 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440674375] [2022-03-03 20:18:47,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:18:47,003 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:18:47,003 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:18:47,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:18:47,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:18:47,005 INFO L87 Difference]: Start difference. First operand 3478 states and 11669 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:48,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:18:48,353 INFO L93 Difference]: Finished difference Result 5485 states and 18455 transitions. [2022-03-03 20:18:48,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-03-03 20:18:48,354 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:18:48,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:18:48,365 INFO L225 Difference]: With dead ends: 5485 [2022-03-03 20:18:48,366 INFO L226 Difference]: Without dead ends: 5430 [2022-03-03 20:18:48,366 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 573 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=244, Invalid=2306, Unknown=0, NotChecked=0, Total=2550 [2022-03-03 20:18:48,366 INFO L933 BasicCegarLoop]: 168 mSDtfsCounter, 361 mSDsluCounter, 1741 mSDsCounter, 0 mSdLazyCounter, 2248 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 361 SdHoareTripleChecker+Valid, 1616 SdHoareTripleChecker+Invalid, 2293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 2248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 20:18:48,367 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [361 Valid, 1616 Invalid, 2293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 2248 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 20:18:48,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5430 states. [2022-03-03 20:18:48,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5430 to 3562. [2022-03-03 20:18:48,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3562 states, 3561 states have (on average 3.3549564729008705) internal successors, (11947), 3561 states have internal predecessors, (11947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:48,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3562 states to 3562 states and 11947 transitions. [2022-03-03 20:18:48,435 INFO L78 Accepts]: Start accepts. Automaton has 3562 states and 11947 transitions. Word has length 39 [2022-03-03 20:18:48,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:18:48,435 INFO L470 AbstractCegarLoop]: Abstraction has 3562 states and 11947 transitions. [2022-03-03 20:18:48,435 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:48,435 INFO L276 IsEmpty]: Start isEmpty. Operand 3562 states and 11947 transitions. [2022-03-03 20:18:48,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:18:48,440 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:18:48,440 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:18:48,440 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-03-03 20:18:48,440 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:18:48,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:18:48,441 INFO L85 PathProgramCache]: Analyzing trace with hash -1459751288, now seen corresponding path program 38 times [2022-03-03 20:18:48,441 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:18:48,441 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794654191] [2022-03-03 20:18:48,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:18:48,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:18:48,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:18:48,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:18:48,756 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:18:48,756 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794654191] [2022-03-03 20:18:48,756 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794654191] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:18:48,756 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:18:48,756 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:18:48,756 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072428035] [2022-03-03 20:18:48,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:18:48,757 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:18:48,757 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:18:48,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:18:48,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:18:48,757 INFO L87 Difference]: Start difference. First operand 3562 states and 11947 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:50,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:18:50,460 INFO L93 Difference]: Finished difference Result 6346 states and 21389 transitions. [2022-03-03 20:18:50,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-03-03 20:18:50,461 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:18:50,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:18:50,475 INFO L225 Difference]: With dead ends: 6346 [2022-03-03 20:18:50,475 INFO L226 Difference]: Without dead ends: 6286 [2022-03-03 20:18:50,475 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 755 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=275, Invalid=2805, Unknown=0, NotChecked=0, Total=3080 [2022-03-03 20:18:50,476 INFO L933 BasicCegarLoop]: 202 mSDtfsCounter, 387 mSDsluCounter, 2051 mSDsCounter, 0 mSdLazyCounter, 2562 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 387 SdHoareTripleChecker+Valid, 1964 SdHoareTripleChecker+Invalid, 2610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 2562 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-03 20:18:50,476 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [387 Valid, 1964 Invalid, 2610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 2562 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-03 20:18:50,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6286 states. [2022-03-03 20:18:50,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6286 to 3560. [2022-03-03 20:18:50,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3560 states, 3559 states have (on average 3.3554369204832817) internal successors, (11942), 3559 states have internal predecessors, (11942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:50,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3560 states to 3560 states and 11942 transitions. [2022-03-03 20:18:50,550 INFO L78 Accepts]: Start accepts. Automaton has 3560 states and 11942 transitions. Word has length 39 [2022-03-03 20:18:50,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:18:50,550 INFO L470 AbstractCegarLoop]: Abstraction has 3560 states and 11942 transitions. [2022-03-03 20:18:50,550 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:50,550 INFO L276 IsEmpty]: Start isEmpty. Operand 3560 states and 11942 transitions. [2022-03-03 20:18:50,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:18:50,555 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:18:50,555 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:18:50,556 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-03-03 20:18:50,556 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:18:50,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:18:50,557 INFO L85 PathProgramCache]: Analyzing trace with hash 957812406, now seen corresponding path program 39 times [2022-03-03 20:18:50,557 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:18:50,557 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605426110] [2022-03-03 20:18:50,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:18:50,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:18:50,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:18:50,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:18:50,794 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:18:50,794 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605426110] [2022-03-03 20:18:50,794 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605426110] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:18:50,794 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:18:50,794 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:18:50,794 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962598753] [2022-03-03 20:18:50,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:18:50,795 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:18:50,795 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:18:50,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:18:50,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:18:50,795 INFO L87 Difference]: Start difference. First operand 3560 states and 11942 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:52,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:18:52,033 INFO L93 Difference]: Finished difference Result 5424 states and 18314 transitions. [2022-03-03 20:18:52,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-03-03 20:18:52,033 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:18:52,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:18:52,044 INFO L225 Difference]: With dead ends: 5424 [2022-03-03 20:18:52,044 INFO L226 Difference]: Without dead ends: 5333 [2022-03-03 20:18:52,045 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 447 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=210, Invalid=1952, Unknown=0, NotChecked=0, Total=2162 [2022-03-03 20:18:52,046 INFO L933 BasicCegarLoop]: 169 mSDtfsCounter, 330 mSDsluCounter, 1708 mSDsCounter, 0 mSdLazyCounter, 2156 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 330 SdHoareTripleChecker+Valid, 1613 SdHoareTripleChecker+Invalid, 2193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 2156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-03 20:18:52,046 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [330 Valid, 1613 Invalid, 2193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 2156 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-03 20:18:52,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5333 states. [2022-03-03 20:18:52,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5333 to 3560. [2022-03-03 20:18:52,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3560 states, 3559 states have (on average 3.3537510536667603) internal successors, (11936), 3559 states have internal predecessors, (11936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:52,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3560 states to 3560 states and 11936 transitions. [2022-03-03 20:18:52,110 INFO L78 Accepts]: Start accepts. Automaton has 3560 states and 11936 transitions. Word has length 39 [2022-03-03 20:18:52,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:18:52,110 INFO L470 AbstractCegarLoop]: Abstraction has 3560 states and 11936 transitions. [2022-03-03 20:18:52,111 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:52,111 INFO L276 IsEmpty]: Start isEmpty. Operand 3560 states and 11936 transitions. [2022-03-03 20:18:52,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:18:52,116 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:18:52,116 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:18:52,116 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-03-03 20:18:52,116 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:18:52,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:18:52,116 INFO L85 PathProgramCache]: Analyzing trace with hash -544669800, now seen corresponding path program 40 times [2022-03-03 20:18:52,117 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:18:52,117 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609677227] [2022-03-03 20:18:52,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:18:52,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:18:52,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:18:52,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:18:52,285 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:18:52,285 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609677227] [2022-03-03 20:18:52,285 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609677227] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:18:52,285 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:18:52,285 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:18:52,285 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170549431] [2022-03-03 20:18:52,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:18:52,285 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:18:52,285 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:18:52,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:18:52,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:18:52,286 INFO L87 Difference]: Start difference. First operand 3560 states and 11936 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:53,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:18:53,395 INFO L93 Difference]: Finished difference Result 6237 states and 21116 transitions. [2022-03-03 20:18:53,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-03-03 20:18:53,395 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:18:53,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:18:53,409 INFO L225 Difference]: With dead ends: 6237 [2022-03-03 20:18:53,409 INFO L226 Difference]: Without dead ends: 6121 [2022-03-03 20:18:53,409 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 568 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=235, Invalid=2315, Unknown=0, NotChecked=0, Total=2550 [2022-03-03 20:18:53,410 INFO L933 BasicCegarLoop]: 203 mSDtfsCounter, 340 mSDsluCounter, 2053 mSDsCounter, 0 mSdLazyCounter, 2505 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 340 SdHoareTripleChecker+Valid, 1970 SdHoareTripleChecker+Invalid, 2544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 2505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-03 20:18:53,410 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [340 Valid, 1970 Invalid, 2544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 2505 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-03 20:18:53,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6121 states. [2022-03-03 20:18:53,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6121 to 3538. [2022-03-03 20:18:53,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3538 states, 3537 states have (on average 3.3551031947978514) internal successors, (11867), 3537 states have internal predecessors, (11867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:53,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3538 states to 3538 states and 11867 transitions. [2022-03-03 20:18:53,483 INFO L78 Accepts]: Start accepts. Automaton has 3538 states and 11867 transitions. Word has length 39 [2022-03-03 20:18:53,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:18:53,483 INFO L470 AbstractCegarLoop]: Abstraction has 3538 states and 11867 transitions. [2022-03-03 20:18:53,483 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:53,483 INFO L276 IsEmpty]: Start isEmpty. Operand 3538 states and 11867 transitions. [2022-03-03 20:18:53,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:18:53,488 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:18:53,488 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:18:53,488 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-03-03 20:18:53,488 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:18:53,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:18:53,489 INFO L85 PathProgramCache]: Analyzing trace with hash 192048216, now seen corresponding path program 41 times [2022-03-03 20:18:53,489 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:18:53,489 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710460874] [2022-03-03 20:18:53,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:18:53,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:18:53,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:18:53,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:18:53,683 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:18:53,683 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710460874] [2022-03-03 20:18:53,683 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710460874] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:18:53,683 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:18:53,683 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:18:53,683 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943132581] [2022-03-03 20:18:53,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:18:53,683 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:18:53,684 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:18:53,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:18:53,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:18:53,684 INFO L87 Difference]: Start difference. First operand 3538 states and 11867 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:54,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:18:54,585 INFO L93 Difference]: Finished difference Result 3974 states and 13117 transitions. [2022-03-03 20:18:54,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-03-03 20:18:54,586 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:18:54,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:18:54,595 INFO L225 Difference]: With dead ends: 3974 [2022-03-03 20:18:54,595 INFO L226 Difference]: Without dead ends: 3868 [2022-03-03 20:18:54,595 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 470 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=222, Invalid=2034, Unknown=0, NotChecked=0, Total=2256 [2022-03-03 20:18:54,595 INFO L933 BasicCegarLoop]: 103 mSDtfsCounter, 230 mSDsluCounter, 1197 mSDsCounter, 0 mSdLazyCounter, 1743 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 960 SdHoareTripleChecker+Invalid, 1772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1743 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:18:54,596 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [230 Valid, 960 Invalid, 1772 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1743 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:18:54,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3868 states. [2022-03-03 20:18:54,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3868 to 3554. [2022-03-03 20:18:54,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3554 states, 3553 states have (on average 3.3546298902336056) internal successors, (11919), 3553 states have internal predecessors, (11919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:54,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3554 states to 3554 states and 11919 transitions. [2022-03-03 20:18:54,651 INFO L78 Accepts]: Start accepts. Automaton has 3554 states and 11919 transitions. Word has length 39 [2022-03-03 20:18:54,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:18:54,652 INFO L470 AbstractCegarLoop]: Abstraction has 3554 states and 11919 transitions. [2022-03-03 20:18:54,652 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:54,652 INFO L276 IsEmpty]: Start isEmpty. Operand 3554 states and 11919 transitions. [2022-03-03 20:18:54,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:18:54,657 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:18:54,657 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:18:54,657 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-03-03 20:18:54,657 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:18:54,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:18:54,658 INFO L85 PathProgramCache]: Analyzing trace with hash -1302842684, now seen corresponding path program 42 times [2022-03-03 20:18:54,658 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:18:54,658 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212941921] [2022-03-03 20:18:54,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:18:54,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:18:54,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:18:54,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:18:54,920 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:18:54,920 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212941921] [2022-03-03 20:18:54,920 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212941921] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:18:54,920 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:18:54,920 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:18:54,920 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928933921] [2022-03-03 20:18:54,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:18:54,921 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:18:54,921 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:18:54,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:18:54,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:18:54,921 INFO L87 Difference]: Start difference. First operand 3554 states and 11919 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:55,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:18:55,987 INFO L93 Difference]: Finished difference Result 4043 states and 13251 transitions. [2022-03-03 20:18:55,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-03 20:18:55,988 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:18:55,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:18:55,995 INFO L225 Difference]: With dead ends: 4043 [2022-03-03 20:18:55,996 INFO L226 Difference]: Without dead ends: 3979 [2022-03-03 20:18:55,996 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 568 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=247, Invalid=2303, Unknown=0, NotChecked=0, Total=2550 [2022-03-03 20:18:55,996 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 241 mSDsluCounter, 1181 mSDsCounter, 0 mSdLazyCounter, 1732 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 940 SdHoareTripleChecker+Invalid, 1771 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1732 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:18:55,997 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [241 Valid, 940 Invalid, 1771 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1732 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:18:56,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3979 states. [2022-03-03 20:18:56,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3979 to 3554. [2022-03-03 20:18:56,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3554 states, 3553 states have (on average 3.3546298902336056) internal successors, (11919), 3553 states have internal predecessors, (11919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:56,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3554 states to 3554 states and 11919 transitions. [2022-03-03 20:18:56,049 INFO L78 Accepts]: Start accepts. Automaton has 3554 states and 11919 transitions. Word has length 39 [2022-03-03 20:18:56,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:18:56,050 INFO L470 AbstractCegarLoop]: Abstraction has 3554 states and 11919 transitions. [2022-03-03 20:18:56,050 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:56,050 INFO L276 IsEmpty]: Start isEmpty. Operand 3554 states and 11919 transitions. [2022-03-03 20:18:56,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:18:56,055 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:18:56,055 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:18:56,055 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-03-03 20:18:56,055 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:18:56,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:18:56,055 INFO L85 PathProgramCache]: Analyzing trace with hash -384359114, now seen corresponding path program 43 times [2022-03-03 20:18:56,055 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:18:56,055 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481675908] [2022-03-03 20:18:56,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:18:56,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:18:56,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:18:56,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:18:56,242 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:18:56,242 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481675908] [2022-03-03 20:18:56,242 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [481675908] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:18:56,242 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:18:56,242 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:18:56,242 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312175253] [2022-03-03 20:18:56,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:18:56,242 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:18:56,242 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:18:56,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:18:56,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:18:56,243 INFO L87 Difference]: Start difference. First operand 3554 states and 11919 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:57,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:18:57,014 INFO L93 Difference]: Finished difference Result 3940 states and 12979 transitions. [2022-03-03 20:18:57,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-03-03 20:18:57,014 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:18:57,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:18:57,022 INFO L225 Difference]: With dead ends: 3940 [2022-03-03 20:18:57,022 INFO L226 Difference]: Without dead ends: 3897 [2022-03-03 20:18:57,023 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 311 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=172, Invalid=1550, Unknown=0, NotChecked=0, Total=1722 [2022-03-03 20:18:57,023 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 208 mSDsluCounter, 1173 mSDsCounter, 0 mSdLazyCounter, 1581 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 898 SdHoareTripleChecker+Invalid, 1606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1581 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:18:57,023 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [208 Valid, 898 Invalid, 1606 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1581 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:18:57,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3897 states. [2022-03-03 20:18:57,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3897 to 3560. [2022-03-03 20:18:57,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3560 states, 3559 states have (on average 3.352627142455746) internal successors, (11932), 3559 states have internal predecessors, (11932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:57,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3560 states to 3560 states and 11932 transitions. [2022-03-03 20:18:57,078 INFO L78 Accepts]: Start accepts. Automaton has 3560 states and 11932 transitions. Word has length 39 [2022-03-03 20:18:57,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:18:57,078 INFO L470 AbstractCegarLoop]: Abstraction has 3560 states and 11932 transitions. [2022-03-03 20:18:57,078 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:57,078 INFO L276 IsEmpty]: Start isEmpty. Operand 3560 states and 11932 transitions. [2022-03-03 20:18:57,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:18:57,083 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:18:57,083 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:18:57,084 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-03-03 20:18:57,084 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:18:57,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:18:57,084 INFO L85 PathProgramCache]: Analyzing trace with hash -364210380, now seen corresponding path program 44 times [2022-03-03 20:18:57,084 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:18:57,084 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210701908] [2022-03-03 20:18:57,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:18:57,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:18:57,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:18:57,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:18:57,246 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:18:57,246 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210701908] [2022-03-03 20:18:57,246 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210701908] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:18:57,246 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:18:57,247 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:18:57,247 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942782383] [2022-03-03 20:18:57,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:18:57,247 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:18:57,247 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:18:57,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:18:57,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:18:57,247 INFO L87 Difference]: Start difference. First operand 3560 states and 11932 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:58,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:18:58,118 INFO L93 Difference]: Finished difference Result 3897 states and 12878 transitions. [2022-03-03 20:18:58,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-03-03 20:18:58,118 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:18:58,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:18:58,126 INFO L225 Difference]: With dead ends: 3897 [2022-03-03 20:18:58,126 INFO L226 Difference]: Without dead ends: 3854 [2022-03-03 20:18:58,127 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 363 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=186, Invalid=1706, Unknown=0, NotChecked=0, Total=1892 [2022-03-03 20:18:58,127 INFO L933 BasicCegarLoop]: 101 mSDtfsCounter, 207 mSDsluCounter, 1199 mSDsCounter, 0 mSdLazyCounter, 1589 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 941 SdHoareTripleChecker+Invalid, 1623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1589 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:18:58,127 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [207 Valid, 941 Invalid, 1623 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1589 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:18:58,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3854 states. [2022-03-03 20:18:58,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3854 to 3556. [2022-03-03 20:18:58,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3556 states, 3555 states have (on average 3.353586497890295) internal successors, (11922), 3555 states have internal predecessors, (11922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:58,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3556 states to 3556 states and 11922 transitions. [2022-03-03 20:18:58,182 INFO L78 Accepts]: Start accepts. Automaton has 3556 states and 11922 transitions. Word has length 39 [2022-03-03 20:18:58,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:18:58,182 INFO L470 AbstractCegarLoop]: Abstraction has 3556 states and 11922 transitions. [2022-03-03 20:18:58,182 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:58,182 INFO L276 IsEmpty]: Start isEmpty. Operand 3556 states and 11922 transitions. [2022-03-03 20:18:58,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:18:58,187 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:18:58,187 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:18:58,188 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-03-03 20:18:58,188 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:18:58,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:18:58,188 INFO L85 PathProgramCache]: Analyzing trace with hash 788293108, now seen corresponding path program 45 times [2022-03-03 20:18:58,188 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:18:58,188 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613889417] [2022-03-03 20:18:58,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:18:58,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:18:58,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:18:58,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:18:58,462 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:18:58,462 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613889417] [2022-03-03 20:18:58,462 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613889417] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:18:58,463 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:18:58,463 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:18:58,463 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878575765] [2022-03-03 20:18:58,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:18:58,464 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:18:58,464 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:18:58,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:18:58,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:18:58,464 INFO L87 Difference]: Start difference. First operand 3556 states and 11922 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:59,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:18:59,363 INFO L93 Difference]: Finished difference Result 3918 states and 12938 transitions. [2022-03-03 20:18:59,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-03 20:18:59,363 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:18:59,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:18:59,371 INFO L225 Difference]: With dead ends: 3918 [2022-03-03 20:18:59,371 INFO L226 Difference]: Without dead ends: 3858 [2022-03-03 20:18:59,372 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 339 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=183, Invalid=1623, Unknown=0, NotChecked=0, Total=1806 [2022-03-03 20:18:59,373 INFO L933 BasicCegarLoop]: 94 mSDtfsCounter, 216 mSDsluCounter, 1111 mSDsCounter, 0 mSdLazyCounter, 1503 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 876 SdHoareTripleChecker+Invalid, 1539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:18:59,373 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [216 Valid, 876 Invalid, 1539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1503 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:18:59,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3858 states. [2022-03-03 20:18:59,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3858 to 3554. [2022-03-03 20:18:59,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3554 states, 3553 states have (on average 3.354066985645933) internal successors, (11917), 3553 states have internal predecessors, (11917), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:59,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3554 states to 3554 states and 11917 transitions. [2022-03-03 20:18:59,419 INFO L78 Accepts]: Start accepts. Automaton has 3554 states and 11917 transitions. Word has length 39 [2022-03-03 20:18:59,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:18:59,420 INFO L470 AbstractCegarLoop]: Abstraction has 3554 states and 11917 transitions. [2022-03-03 20:18:59,420 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:18:59,420 INFO L276 IsEmpty]: Start isEmpty. Operand 3554 states and 11917 transitions. [2022-03-03 20:18:59,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:18:59,424 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:18:59,424 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:18:59,424 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-03-03 20:18:59,424 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:18:59,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:18:59,425 INFO L85 PathProgramCache]: Analyzing trace with hash -1291273434, now seen corresponding path program 46 times [2022-03-03 20:18:59,425 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:18:59,425 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355763948] [2022-03-03 20:18:59,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:18:59,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:18:59,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:18:59,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:18:59,642 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:18:59,642 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355763948] [2022-03-03 20:18:59,642 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355763948] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:18:59,642 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:18:59,643 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 20:18:59,643 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937066737] [2022-03-03 20:18:59,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:18:59,643 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-03-03 20:18:59,643 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:18:59,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-03-03 20:18:59,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2022-03-03 20:18:59,643 INFO L87 Difference]: Start difference. First operand 3554 states and 11917 transitions. Second operand has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:00,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:19:00,385 INFO L93 Difference]: Finished difference Result 3886 states and 12878 transitions. [2022-03-03 20:19:00,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 20:19:00,386 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:19:00,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:19:00,394 INFO L225 Difference]: With dead ends: 3886 [2022-03-03 20:19:00,394 INFO L226 Difference]: Without dead ends: 3810 [2022-03-03 20:19:00,395 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=148, Invalid=1258, Unknown=0, NotChecked=0, Total=1406 [2022-03-03 20:19:00,395 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 179 mSDsluCounter, 991 mSDsCounter, 0 mSdLazyCounter, 1364 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 792 SdHoareTripleChecker+Invalid, 1387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 20:19:00,395 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [179 Valid, 792 Invalid, 1387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1364 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 20:19:00,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3810 states. [2022-03-03 20:19:00,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3810 to 3562. [2022-03-03 20:19:00,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3562 states, 3561 states have (on average 3.3510249929795) internal successors, (11933), 3561 states have internal predecessors, (11933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:00,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3562 states to 3562 states and 11933 transitions. [2022-03-03 20:19:00,444 INFO L78 Accepts]: Start accepts. Automaton has 3562 states and 11933 transitions. Word has length 39 [2022-03-03 20:19:00,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:19:00,444 INFO L470 AbstractCegarLoop]: Abstraction has 3562 states and 11933 transitions. [2022-03-03 20:19:00,445 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:00,445 INFO L276 IsEmpty]: Start isEmpty. Operand 3562 states and 11933 transitions. [2022-03-03 20:19:00,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:19:00,450 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:19:00,451 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:19:00,451 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-03-03 20:19:00,451 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:19:00,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:19:00,451 INFO L85 PathProgramCache]: Analyzing trace with hash 1985640250, now seen corresponding path program 47 times [2022-03-03 20:19:00,452 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:19:00,452 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608037327] [2022-03-03 20:19:00,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:19:00,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:19:00,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:19:00,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:19:00,646 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:19:00,646 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608037327] [2022-03-03 20:19:00,646 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608037327] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:19:00,646 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:19:00,646 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:19:00,646 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466420917] [2022-03-03 20:19:00,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:19:00,646 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:19:00,647 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:19:00,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:19:00,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:19:00,647 INFO L87 Difference]: Start difference. First operand 3562 states and 11933 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:01,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:19:01,380 INFO L93 Difference]: Finished difference Result 3868 states and 12824 transitions. [2022-03-03 20:19:01,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-03-03 20:19:01,380 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:19:01,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:19:01,387 INFO L225 Difference]: With dead ends: 3868 [2022-03-03 20:19:01,387 INFO L226 Difference]: Without dead ends: 3798 [2022-03-03 20:19:01,387 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 291 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=164, Invalid=1476, Unknown=0, NotChecked=0, Total=1640 [2022-03-03 20:19:01,389 INFO L933 BasicCegarLoop]: 96 mSDtfsCounter, 199 mSDsluCounter, 1115 mSDsCounter, 0 mSdLazyCounter, 1477 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 891 SdHoareTripleChecker+Invalid, 1508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 20:19:01,389 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [199 Valid, 891 Invalid, 1508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1477 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 20:19:01,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3798 states. [2022-03-03 20:19:01,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3798 to 3550. [2022-03-03 20:19:01,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3550 states, 3549 states have (on average 3.354466046773739) internal successors, (11905), 3549 states have internal predecessors, (11905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:01,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3550 states to 3550 states and 11905 transitions. [2022-03-03 20:19:01,432 INFO L78 Accepts]: Start accepts. Automaton has 3550 states and 11905 transitions. Word has length 39 [2022-03-03 20:19:01,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:19:01,432 INFO L470 AbstractCegarLoop]: Abstraction has 3550 states and 11905 transitions. [2022-03-03 20:19:01,432 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:01,432 INFO L276 IsEmpty]: Start isEmpty. Operand 3550 states and 11905 transitions. [2022-03-03 20:19:01,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:19:01,437 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:19:01,437 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:19:01,437 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-03-03 20:19:01,437 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:19:01,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:19:01,437 INFO L85 PathProgramCache]: Analyzing trace with hash -1463143366, now seen corresponding path program 48 times [2022-03-03 20:19:01,437 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:19:01,437 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389320791] [2022-03-03 20:19:01,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:19:01,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:19:01,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:19:01,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:19:01,643 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:19:01,643 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389320791] [2022-03-03 20:19:01,643 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389320791] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:19:01,643 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:19:01,643 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:19:01,643 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045281581] [2022-03-03 20:19:01,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:19:01,643 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:19:01,644 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:19:01,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:19:01,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:19:01,644 INFO L87 Difference]: Start difference. First operand 3550 states and 11905 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:03,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:19:03,070 INFO L93 Difference]: Finished difference Result 5576 states and 18929 transitions. [2022-03-03 20:19:03,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-03-03 20:19:03,070 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:19:03,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:19:03,083 INFO L225 Difference]: With dead ends: 5576 [2022-03-03 20:19:03,083 INFO L226 Difference]: Without dead ends: 5533 [2022-03-03 20:19:03,089 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 825 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=302, Invalid=3004, Unknown=0, NotChecked=0, Total=3306 [2022-03-03 20:19:03,090 INFO L933 BasicCegarLoop]: 162 mSDtfsCounter, 395 mSDsluCounter, 1727 mSDsCounter, 0 mSdLazyCounter, 2318 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 395 SdHoareTripleChecker+Valid, 1602 SdHoareTripleChecker+Invalid, 2381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 2318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-03 20:19:03,090 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [395 Valid, 1602 Invalid, 2381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 2318 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-03 20:19:03,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5533 states. [2022-03-03 20:19:03,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5533 to 3576. [2022-03-03 20:19:03,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3576 states, 3575 states have (on average 3.3532867132867135) internal successors, (11988), 3575 states have internal predecessors, (11988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:03,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3576 states to 3576 states and 11988 transitions. [2022-03-03 20:19:03,152 INFO L78 Accepts]: Start accepts. Automaton has 3576 states and 11988 transitions. Word has length 39 [2022-03-03 20:19:03,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:19:03,152 INFO L470 AbstractCegarLoop]: Abstraction has 3576 states and 11988 transitions. [2022-03-03 20:19:03,152 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:03,152 INFO L276 IsEmpty]: Start isEmpty. Operand 3576 states and 11988 transitions. [2022-03-03 20:19:03,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:19:03,157 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:19:03,157 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:19:03,158 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-03-03 20:19:03,158 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:19:03,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:19:03,159 INFO L85 PathProgramCache]: Analyzing trace with hash 1051225628, now seen corresponding path program 49 times [2022-03-03 20:19:03,159 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:19:03,159 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129865698] [2022-03-03 20:19:03,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:19:03,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:19:03,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:19:03,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:19:03,348 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:19:03,348 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129865698] [2022-03-03 20:19:03,348 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129865698] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:19:03,348 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:19:03,348 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:19:03,348 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056234096] [2022-03-03 20:19:03,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:19:03,349 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:19:03,349 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:19:03,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:19:03,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:19:03,349 INFO L87 Difference]: Start difference. First operand 3576 states and 11988 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:04,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:19:04,646 INFO L93 Difference]: Finished difference Result 6437 states and 21859 transitions. [2022-03-03 20:19:04,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-03 20:19:04,646 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:19:04,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:19:04,660 INFO L225 Difference]: With dead ends: 6437 [2022-03-03 20:19:04,660 INFO L226 Difference]: Without dead ends: 6385 [2022-03-03 20:19:04,661 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1085 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=344, Invalid=3688, Unknown=0, NotChecked=0, Total=4032 [2022-03-03 20:19:04,661 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 437 mSDsluCounter, 2017 mSDsCounter, 0 mSdLazyCounter, 2638 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 437 SdHoareTripleChecker+Valid, 1928 SdHoareTripleChecker+Invalid, 2708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 2638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-03 20:19:04,661 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [437 Valid, 1928 Invalid, 2708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 2638 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-03 20:19:04,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6385 states. [2022-03-03 20:19:04,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6385 to 3562. [2022-03-03 20:19:04,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3562 states, 3561 states have (on average 3.3549564729008705) internal successors, (11947), 3561 states have internal predecessors, (11947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:04,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3562 states to 3562 states and 11947 transitions. [2022-03-03 20:19:04,731 INFO L78 Accepts]: Start accepts. Automaton has 3562 states and 11947 transitions. Word has length 39 [2022-03-03 20:19:04,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:19:04,731 INFO L470 AbstractCegarLoop]: Abstraction has 3562 states and 11947 transitions. [2022-03-03 20:19:04,732 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:04,732 INFO L276 IsEmpty]: Start isEmpty. Operand 3562 states and 11947 transitions. [2022-03-03 20:19:04,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:19:04,737 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:19:04,737 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:19:04,737 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-03-03 20:19:04,739 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:19:04,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:19:04,739 INFO L85 PathProgramCache]: Analyzing trace with hash -544659796, now seen corresponding path program 50 times [2022-03-03 20:19:04,739 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:19:04,739 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519632609] [2022-03-03 20:19:04,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:19:04,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:19:04,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:19:04,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:19:04,966 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:19:04,966 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519632609] [2022-03-03 20:19:04,966 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519632609] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:19:04,966 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:19:04,966 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:19:04,966 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889409948] [2022-03-03 20:19:04,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:19:04,967 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:19:04,967 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:19:04,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:19:04,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:19:04,967 INFO L87 Difference]: Start difference. First operand 3562 states and 11947 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:06,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:19:06,242 INFO L93 Difference]: Finished difference Result 5393 states and 18145 transitions. [2022-03-03 20:19:06,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-03 20:19:06,243 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:19:06,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:19:06,257 INFO L225 Difference]: With dead ends: 5393 [2022-03-03 20:19:06,257 INFO L226 Difference]: Without dead ends: 5338 [2022-03-03 20:19:06,258 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 513 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=226, Invalid=2126, Unknown=0, NotChecked=0, Total=2352 [2022-03-03 20:19:06,258 INFO L933 BasicCegarLoop]: 158 mSDtfsCounter, 335 mSDsluCounter, 1670 mSDsCounter, 0 mSdLazyCounter, 2096 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 335 SdHoareTripleChecker+Valid, 1535 SdHoareTripleChecker+Invalid, 2136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 2096 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-03 20:19:06,258 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [335 Valid, 1535 Invalid, 2136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 2096 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-03 20:19:06,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5338 states. [2022-03-03 20:19:06,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5338 to 3582. [2022-03-03 20:19:06,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3582 states, 3581 states have (on average 3.3546495392348508) internal successors, (12013), 3581 states have internal predecessors, (12013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:06,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3582 states to 3582 states and 12013 transitions. [2022-03-03 20:19:06,320 INFO L78 Accepts]: Start accepts. Automaton has 3582 states and 12013 transitions. Word has length 39 [2022-03-03 20:19:06,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:19:06,320 INFO L470 AbstractCegarLoop]: Abstraction has 3582 states and 12013 transitions. [2022-03-03 20:19:06,320 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:06,320 INFO L276 IsEmpty]: Start isEmpty. Operand 3582 states and 12013 transitions. [2022-03-03 20:19:06,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:19:06,325 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:19:06,325 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:19:06,325 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-03-03 20:19:06,325 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:19:06,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:19:06,326 INFO L85 PathProgramCache]: Analyzing trace with hash 627992426, now seen corresponding path program 51 times [2022-03-03 20:19:06,326 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:19:06,326 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141705079] [2022-03-03 20:19:06,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:19:06,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:19:06,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:19:06,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:19:06,567 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:19:06,567 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141705079] [2022-03-03 20:19:06,567 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141705079] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:19:06,567 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:19:06,567 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:19:06,568 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199676055] [2022-03-03 20:19:06,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:19:06,568 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:19:06,568 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:19:06,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:19:06,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:19:06,568 INFO L87 Difference]: Start difference. First operand 3582 states and 12013 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:07,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:19:07,870 INFO L93 Difference]: Finished difference Result 6254 states and 21079 transitions. [2022-03-03 20:19:07,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-03-03 20:19:07,870 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:19:07,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:19:07,885 INFO L225 Difference]: With dead ends: 6254 [2022-03-03 20:19:07,885 INFO L226 Difference]: Without dead ends: 6194 [2022-03-03 20:19:07,885 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 792 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=288, Invalid=2904, Unknown=0, NotChecked=0, Total=3192 [2022-03-03 20:19:07,887 INFO L933 BasicCegarLoop]: 192 mSDtfsCounter, 381 mSDsluCounter, 1967 mSDsCounter, 0 mSdLazyCounter, 2391 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 381 SdHoareTripleChecker+Valid, 1871 SdHoareTripleChecker+Invalid, 2443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 2391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-03 20:19:07,887 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [381 Valid, 1871 Invalid, 2443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 2391 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-03 20:19:07,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6194 states. [2022-03-03 20:19:07,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6194 to 3580. [2022-03-03 20:19:07,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3580 states, 3579 states have (on average 3.355127130483375) internal successors, (12008), 3579 states have internal predecessors, (12008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:07,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3580 states to 3580 states and 12008 transitions. [2022-03-03 20:19:07,957 INFO L78 Accepts]: Start accepts. Automaton has 3580 states and 12008 transitions. Word has length 39 [2022-03-03 20:19:07,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:19:07,957 INFO L470 AbstractCegarLoop]: Abstraction has 3580 states and 12008 transitions. [2022-03-03 20:19:07,957 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:07,957 INFO L276 IsEmpty]: Start isEmpty. Operand 3580 states and 12008 transitions. [2022-03-03 20:19:07,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:19:07,963 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:19:07,963 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:19:07,963 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-03-03 20:19:07,964 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:19:07,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:19:07,964 INFO L85 PathProgramCache]: Analyzing trace with hash -1249411176, now seen corresponding path program 52 times [2022-03-03 20:19:07,964 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:19:07,964 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173220087] [2022-03-03 20:19:07,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:19:07,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:19:07,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:19:08,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:19:08,243 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:19:08,243 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173220087] [2022-03-03 20:19:08,243 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173220087] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:19:08,243 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:19:08,243 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:19:08,243 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422501219] [2022-03-03 20:19:08,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:19:08,244 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:19:08,244 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:19:08,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:19:08,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:19:08,244 INFO L87 Difference]: Start difference. First operand 3580 states and 12008 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:09,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:19:09,184 INFO L93 Difference]: Finished difference Result 5284 states and 17876 transitions. [2022-03-03 20:19:09,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 20:19:09,184 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:19:09,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:19:09,196 INFO L225 Difference]: With dead ends: 5284 [2022-03-03 20:19:09,196 INFO L226 Difference]: Without dead ends: 5193 [2022-03-03 20:19:09,196 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 361 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=186, Invalid=1706, Unknown=0, NotChecked=0, Total=1892 [2022-03-03 20:19:09,201 INFO L933 BasicCegarLoop]: 159 mSDtfsCounter, 296 mSDsluCounter, 1640 mSDsCounter, 0 mSdLazyCounter, 2007 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 1535 SdHoareTripleChecker+Invalid, 2037 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 2007 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:19:09,201 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [296 Valid, 1535 Invalid, 2037 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 2007 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:19:09,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5193 states. [2022-03-03 20:19:09,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5193 to 3580. [2022-03-03 20:19:09,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3580 states, 3579 states have (on average 3.353450684548757) internal successors, (12002), 3579 states have internal predecessors, (12002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:09,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3580 states to 3580 states and 12002 transitions. [2022-03-03 20:19:09,255 INFO L78 Accepts]: Start accepts. Automaton has 3580 states and 12002 transitions. Word has length 39 [2022-03-03 20:19:09,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:19:09,255 INFO L470 AbstractCegarLoop]: Abstraction has 3580 states and 12002 transitions. [2022-03-03 20:19:09,255 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:09,255 INFO L276 IsEmpty]: Start isEmpty. Operand 3580 states and 12002 transitions. [2022-03-03 20:19:09,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:19:09,260 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:19:09,260 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:19:09,260 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-03-03 20:19:09,260 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:19:09,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:19:09,260 INFO L85 PathProgramCache]: Analyzing trace with hash 1543073914, now seen corresponding path program 53 times [2022-03-03 20:19:09,260 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:19:09,260 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454012083] [2022-03-03 20:19:09,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:19:09,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:19:09,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:19:09,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:19:09,578 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:19:09,578 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454012083] [2022-03-03 20:19:09,578 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454012083] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:19:09,578 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:19:09,578 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:19:09,578 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078503481] [2022-03-03 20:19:09,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:19:09,579 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:19:09,579 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:19:09,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:19:09,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:19:09,579 INFO L87 Difference]: Start difference. First operand 3580 states and 12002 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:11,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:19:11,013 INFO L93 Difference]: Finished difference Result 6116 states and 20752 transitions. [2022-03-03 20:19:11,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-03-03 20:19:11,013 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:19:11,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:19:11,027 INFO L225 Difference]: With dead ends: 6116 [2022-03-03 20:19:11,027 INFO L226 Difference]: Without dead ends: 6016 [2022-03-03 20:19:11,027 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 576 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=238, Invalid=2312, Unknown=0, NotChecked=0, Total=2550 [2022-03-03 20:19:11,028 INFO L933 BasicCegarLoop]: 192 mSDtfsCounter, 340 mSDsluCounter, 1935 mSDsCounter, 0 mSdLazyCounter, 2334 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 340 SdHoareTripleChecker+Valid, 1845 SdHoareTripleChecker+Invalid, 2376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 2334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 20:19:11,028 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [340 Valid, 1845 Invalid, 2376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 2334 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 20:19:11,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6016 states. [2022-03-03 20:19:11,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6016 to 3574. [2022-03-03 20:19:11,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3574 states, 3573 states have (on average 3.352085082563672) internal successors, (11977), 3573 states have internal predecessors, (11977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:11,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3574 states to 3574 states and 11977 transitions. [2022-03-03 20:19:11,153 INFO L78 Accepts]: Start accepts. Automaton has 3574 states and 11977 transitions. Word has length 39 [2022-03-03 20:19:11,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:19:11,153 INFO L470 AbstractCegarLoop]: Abstraction has 3574 states and 11977 transitions. [2022-03-03 20:19:11,153 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:11,153 INFO L276 IsEmpty]: Start isEmpty. Operand 3574 states and 11977 transitions. [2022-03-03 20:19:11,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:19:11,159 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:19:11,159 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:19:11,159 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-03-03 20:19:11,159 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:19:11,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:19:11,160 INFO L85 PathProgramCache]: Analyzing trace with hash 1306448918, now seen corresponding path program 54 times [2022-03-03 20:19:11,160 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:19:11,160 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623777508] [2022-03-03 20:19:11,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:19:11,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:19:11,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:19:11,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:19:11,350 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:19:11,350 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623777508] [2022-03-03 20:19:11,350 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623777508] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:19:11,350 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:19:11,350 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 20:19:11,350 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762603894] [2022-03-03 20:19:11,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:19:11,351 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-03-03 20:19:11,351 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:19:11,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-03-03 20:19:11,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2022-03-03 20:19:11,351 INFO L87 Difference]: Start difference. First operand 3574 states and 11977 transitions. Second operand has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:12,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:19:12,150 INFO L93 Difference]: Finished difference Result 3841 states and 12759 transitions. [2022-03-03 20:19:12,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-03-03 20:19:12,150 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:19:12,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:19:12,158 INFO L225 Difference]: With dead ends: 3841 [2022-03-03 20:19:12,158 INFO L226 Difference]: Without dead ends: 3765 [2022-03-03 20:19:12,158 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=135, Invalid=1125, Unknown=0, NotChecked=0, Total=1260 [2022-03-03 20:19:12,158 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 155 mSDsluCounter, 982 mSDsCounter, 0 mSdLazyCounter, 1327 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 793 SdHoareTripleChecker+Invalid, 1344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:19:12,159 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 793 Invalid, 1344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1327 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:19:12,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3765 states. [2022-03-03 20:19:12,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3765 to 3606. [2022-03-03 20:19:12,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3606 states, 3605 states have (on average 3.3467406380027738) internal successors, (12065), 3605 states have internal predecessors, (12065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:12,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3606 states to 3606 states and 12065 transitions. [2022-03-03 20:19:12,207 INFO L78 Accepts]: Start accepts. Automaton has 3606 states and 12065 transitions. Word has length 39 [2022-03-03 20:19:12,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:19:12,208 INFO L470 AbstractCegarLoop]: Abstraction has 3606 states and 12065 transitions. [2022-03-03 20:19:12,208 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:12,208 INFO L276 IsEmpty]: Start isEmpty. Operand 3606 states and 12065 transitions. [2022-03-03 20:19:12,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:19:12,213 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:19:12,213 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:19:12,213 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-03-03 20:19:12,213 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:19:12,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:19:12,213 INFO L85 PathProgramCache]: Analyzing trace with hash 288395306, now seen corresponding path program 55 times [2022-03-03 20:19:12,213 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:19:12,213 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209276489] [2022-03-03 20:19:12,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:19:12,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:19:12,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:19:12,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:19:12,460 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:19:12,461 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209276489] [2022-03-03 20:19:12,461 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209276489] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:19:12,461 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:19:12,461 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:19:12,461 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961381620] [2022-03-03 20:19:12,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:19:12,461 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:19:12,461 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:19:12,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:19:12,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:19:12,461 INFO L87 Difference]: Start difference. First operand 3606 states and 12065 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:13,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:19:13,409 INFO L93 Difference]: Finished difference Result 3823 states and 12705 transitions. [2022-03-03 20:19:13,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-03 20:19:13,409 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:19:13,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:19:13,417 INFO L225 Difference]: With dead ends: 3823 [2022-03-03 20:19:13,417 INFO L226 Difference]: Without dead ends: 3757 [2022-03-03 20:19:13,417 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=151, Invalid=1331, Unknown=0, NotChecked=0, Total=1482 [2022-03-03 20:19:13,420 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 183 mSDsluCounter, 1063 mSDsCounter, 0 mSdLazyCounter, 1396 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 873 SdHoareTripleChecker+Invalid, 1422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:19:13,420 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [183 Valid, 873 Invalid, 1422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1396 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:19:13,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3757 states. [2022-03-03 20:19:13,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3757 to 3598. [2022-03-03 20:19:13,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3598 states, 3597 states have (on average 3.347511815401724) internal successors, (12041), 3597 states have internal predecessors, (12041), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:13,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3598 states to 3598 states and 12041 transitions. [2022-03-03 20:19:13,469 INFO L78 Accepts]: Start accepts. Automaton has 3598 states and 12041 transitions. Word has length 39 [2022-03-03 20:19:13,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:19:13,469 INFO L470 AbstractCegarLoop]: Abstraction has 3598 states and 12041 transitions. [2022-03-03 20:19:13,469 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:13,469 INFO L276 IsEmpty]: Start isEmpty. Operand 3598 states and 12041 transitions. [2022-03-03 20:19:13,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:19:13,474 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:19:13,474 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:19:13,478 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-03-03 20:19:13,478 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:19:13,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:19:13,478 INFO L85 PathProgramCache]: Analyzing trace with hash 6129652, now seen corresponding path program 56 times [2022-03-03 20:19:13,478 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:19:13,478 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639159530] [2022-03-03 20:19:13,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:19:13,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:19:13,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:19:13,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:19:13,718 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:19:13,718 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639159530] [2022-03-03 20:19:13,718 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639159530] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:19:13,718 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:19:13,718 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:19:13,718 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683312641] [2022-03-03 20:19:13,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:19:13,719 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:19:13,719 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:19:13,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:19:13,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:19:13,719 INFO L87 Difference]: Start difference. First operand 3598 states and 12041 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:14,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:19:14,360 INFO L93 Difference]: Finished difference Result 3832 states and 12726 transitions. [2022-03-03 20:19:14,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-03 20:19:14,360 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:19:14,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:19:14,368 INFO L225 Difference]: With dead ends: 3832 [2022-03-03 20:19:14,368 INFO L226 Difference]: Without dead ends: 3670 [2022-03-03 20:19:14,368 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 242 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=151, Invalid=1331, Unknown=0, NotChecked=0, Total=1482 [2022-03-03 20:19:14,368 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 175 mSDsluCounter, 1119 mSDsCounter, 0 mSdLazyCounter, 1395 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 937 SdHoareTripleChecker+Invalid, 1419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 20:19:14,368 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 937 Invalid, 1419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1395 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 20:19:14,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3670 states. [2022-03-03 20:19:14,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3670 to 3530. [2022-03-03 20:19:14,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3530 states, 3529 states have (on average 3.3587418532162086) internal successors, (11853), 3529 states have internal predecessors, (11853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:14,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3530 states to 3530 states and 11853 transitions. [2022-03-03 20:19:14,414 INFO L78 Accepts]: Start accepts. Automaton has 3530 states and 11853 transitions. Word has length 39 [2022-03-03 20:19:14,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:19:14,415 INFO L470 AbstractCegarLoop]: Abstraction has 3530 states and 11853 transitions. [2022-03-03 20:19:14,415 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:14,415 INFO L276 IsEmpty]: Start isEmpty. Operand 3530 states and 11853 transitions. [2022-03-03 20:19:14,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:19:14,419 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:19:14,419 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:19:14,419 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-03-03 20:19:14,419 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:19:14,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:19:14,420 INFO L85 PathProgramCache]: Analyzing trace with hash 1964615912, now seen corresponding path program 57 times [2022-03-03 20:19:14,420 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:19:14,420 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772345159] [2022-03-03 20:19:14,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:19:14,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:19:14,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:19:14,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:19:14,640 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:19:14,640 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772345159] [2022-03-03 20:19:14,640 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772345159] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:19:14,640 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:19:14,640 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:19:14,640 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310133916] [2022-03-03 20:19:14,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:19:14,640 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:19:14,640 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:19:14,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:19:14,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:19:14,641 INFO L87 Difference]: Start difference. First operand 3530 states and 11853 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:15,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:19:15,491 INFO L93 Difference]: Finished difference Result 3963 states and 13168 transitions. [2022-03-03 20:19:15,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 20:19:15,492 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:19:15,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:19:15,499 INFO L225 Difference]: With dead ends: 3963 [2022-03-03 20:19:15,500 INFO L226 Difference]: Without dead ends: 3896 [2022-03-03 20:19:15,500 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 451 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=222, Invalid=2034, Unknown=0, NotChecked=0, Total=2256 [2022-03-03 20:19:15,500 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 258 mSDsluCounter, 1158 mSDsCounter, 0 mSdLazyCounter, 1630 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 959 SdHoareTripleChecker+Invalid, 1681 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 1630 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:19:15,500 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [258 Valid, 959 Invalid, 1681 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 1630 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:19:15,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3896 states. [2022-03-03 20:19:15,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3896 to 3566. [2022-03-03 20:19:15,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3566 states, 3565 states have (on average 3.3545582047685834) internal successors, (11959), 3565 states have internal predecessors, (11959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:15,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3566 states to 3566 states and 11959 transitions. [2022-03-03 20:19:15,556 INFO L78 Accepts]: Start accepts. Automaton has 3566 states and 11959 transitions. Word has length 39 [2022-03-03 20:19:15,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:19:15,556 INFO L470 AbstractCegarLoop]: Abstraction has 3566 states and 11959 transitions. [2022-03-03 20:19:15,556 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:15,556 INFO L276 IsEmpty]: Start isEmpty. Operand 3566 states and 11959 transitions. [2022-03-03 20:19:15,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:19:15,562 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:19:15,562 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:19:15,562 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-03-03 20:19:15,562 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:19:15,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:19:15,562 INFO L85 PathProgramCache]: Analyzing trace with hash 244999942, now seen corresponding path program 58 times [2022-03-03 20:19:15,562 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:19:15,562 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3426212] [2022-03-03 20:19:15,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:19:15,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:19:15,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:19:15,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:19:15,774 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:19:15,774 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3426212] [2022-03-03 20:19:15,774 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3426212] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:19:15,774 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:19:15,774 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:19:15,774 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642340857] [2022-03-03 20:19:15,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:19:15,775 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:19:15,775 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:19:15,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:19:15,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:19:15,775 INFO L87 Difference]: Start difference. First operand 3566 states and 11959 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:17,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:19:17,072 INFO L93 Difference]: Finished difference Result 4048 states and 13357 transitions. [2022-03-03 20:19:17,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-03-03 20:19:17,072 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:19:17,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:19:17,081 INFO L225 Difference]: With dead ends: 4048 [2022-03-03 20:19:17,081 INFO L226 Difference]: Without dead ends: 4005 [2022-03-03 20:19:17,081 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 714 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=283, Invalid=2797, Unknown=0, NotChecked=0, Total=3080 [2022-03-03 20:19:17,082 INFO L933 BasicCegarLoop]: 102 mSDtfsCounter, 314 mSDsluCounter, 1301 mSDsCounter, 0 mSdLazyCounter, 1887 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 314 SdHoareTripleChecker+Valid, 1069 SdHoareTripleChecker+Invalid, 1942 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 1887 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:19:17,082 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [314 Valid, 1069 Invalid, 1942 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 1887 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:19:17,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4005 states. [2022-03-03 20:19:17,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4005 to 3572. [2022-03-03 20:19:17,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3572 states, 3571 states have (on average 3.352562307476897) internal successors, (11972), 3571 states have internal predecessors, (11972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:17,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3572 states to 3572 states and 11972 transitions. [2022-03-03 20:19:17,144 INFO L78 Accepts]: Start accepts. Automaton has 3572 states and 11972 transitions. Word has length 39 [2022-03-03 20:19:17,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:19:17,144 INFO L470 AbstractCegarLoop]: Abstraction has 3572 states and 11972 transitions. [2022-03-03 20:19:17,144 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:17,145 INFO L276 IsEmpty]: Start isEmpty. Operand 3572 states and 11972 transitions. [2022-03-03 20:19:17,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:19:17,150 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:19:17,150 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:19:17,150 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-03-03 20:19:17,150 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:19:17,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:19:17,150 INFO L85 PathProgramCache]: Analyzing trace with hash -1535598360, now seen corresponding path program 59 times [2022-03-03 20:19:17,150 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:19:17,151 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465358466] [2022-03-03 20:19:17,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:19:17,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:19:17,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:19:17,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:19:17,442 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:19:17,442 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465358466] [2022-03-03 20:19:17,442 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465358466] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:19:17,442 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:19:17,442 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:19:17,442 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771727365] [2022-03-03 20:19:17,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:19:17,442 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:19:17,442 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:19:17,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:19:17,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:19:17,443 INFO L87 Difference]: Start difference. First operand 3572 states and 11972 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:18,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:19:18,826 INFO L93 Difference]: Finished difference Result 4003 states and 13253 transitions. [2022-03-03 20:19:18,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-03-03 20:19:18,826 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:19:18,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:19:18,834 INFO L225 Difference]: With dead ends: 4003 [2022-03-03 20:19:18,834 INFO L226 Difference]: Without dead ends: 3939 [2022-03-03 20:19:18,834 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 675 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=274, Invalid=2696, Unknown=0, NotChecked=0, Total=2970 [2022-03-03 20:19:18,835 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 298 mSDsluCounter, 1270 mSDsCounter, 0 mSdLazyCounter, 1851 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 1051 SdHoareTripleChecker+Invalid, 1902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 1851 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-03 20:19:18,835 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [298 Valid, 1051 Invalid, 1902 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 1851 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-03 20:19:18,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3939 states. [2022-03-03 20:19:18,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3939 to 3554. [2022-03-03 20:19:18,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3554 states, 3553 states have (on average 3.3574444131719674) internal successors, (11929), 3553 states have internal predecessors, (11929), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:18,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3554 states to 3554 states and 11929 transitions. [2022-03-03 20:19:18,885 INFO L78 Accepts]: Start accepts. Automaton has 3554 states and 11929 transitions. Word has length 39 [2022-03-03 20:19:18,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:19:18,885 INFO L470 AbstractCegarLoop]: Abstraction has 3554 states and 11929 transitions. [2022-03-03 20:19:18,885 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:18,885 INFO L276 IsEmpty]: Start isEmpty. Operand 3554 states and 11929 transitions. [2022-03-03 20:19:18,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:19:18,890 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:19:18,890 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:19:18,890 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-03-03 20:19:18,890 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:19:18,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:19:18,891 INFO L85 PathProgramCache]: Analyzing trace with hash -915163960, now seen corresponding path program 60 times [2022-03-03 20:19:18,891 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:19:18,891 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050807613] [2022-03-03 20:19:18,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:19:18,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:19:18,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:19:19,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:19:19,097 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:19:19,097 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050807613] [2022-03-03 20:19:19,097 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050807613] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:19:19,097 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:19:19,097 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:19:19,097 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50492229] [2022-03-03 20:19:19,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:19:19,097 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:19:19,097 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:19:19,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:19:19,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:19:19,098 INFO L87 Difference]: Start difference. First operand 3554 states and 11929 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:19,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:19:19,866 INFO L93 Difference]: Finished difference Result 3963 states and 13162 transitions. [2022-03-03 20:19:19,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-03-03 20:19:19,866 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:19:19,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:19:19,874 INFO L225 Difference]: With dead ends: 3963 [2022-03-03 20:19:19,875 INFO L226 Difference]: Without dead ends: 3896 [2022-03-03 20:19:19,875 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 450 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=220, Invalid=2036, Unknown=0, NotChecked=0, Total=2256 [2022-03-03 20:19:19,875 INFO L933 BasicCegarLoop]: 101 mSDtfsCounter, 243 mSDsluCounter, 1202 mSDsCounter, 0 mSdLazyCounter, 1674 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 994 SdHoareTripleChecker+Invalid, 1721 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 1674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 20:19:19,875 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [243 Valid, 994 Invalid, 1721 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 1674 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 20:19:19,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3896 states. [2022-03-03 20:19:19,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3896 to 3562. [2022-03-03 20:19:19,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3562 states, 3561 states have (on average 3.3543948329121034) internal successors, (11945), 3561 states have internal predecessors, (11945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:19,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3562 states to 3562 states and 11945 transitions. [2022-03-03 20:19:19,931 INFO L78 Accepts]: Start accepts. Automaton has 3562 states and 11945 transitions. Word has length 39 [2022-03-03 20:19:19,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:19:19,931 INFO L470 AbstractCegarLoop]: Abstraction has 3562 states and 11945 transitions. [2022-03-03 20:19:19,931 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:19,934 INFO L276 IsEmpty]: Start isEmpty. Operand 3562 states and 11945 transitions. [2022-03-03 20:19:19,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:19:19,940 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:19:19,940 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:19:19,940 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-03-03 20:19:19,940 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:19:19,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:19:19,940 INFO L85 PathProgramCache]: Analyzing trace with hash -1045758808, now seen corresponding path program 61 times [2022-03-03 20:19:19,940 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:19:19,940 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684668496] [2022-03-03 20:19:19,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:19:19,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:19:19,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:19:20,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:19:20,136 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:19:20,136 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684668496] [2022-03-03 20:19:20,136 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684668496] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:19:20,136 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:19:20,137 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:19:20,137 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729016245] [2022-03-03 20:19:20,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:19:20,137 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:19:20,137 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:19:20,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:19:20,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:19:20,137 INFO L87 Difference]: Start difference. First operand 3562 states and 11945 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:21,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:19:21,010 INFO L93 Difference]: Finished difference Result 3951 states and 13122 transitions. [2022-03-03 20:19:21,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-03 20:19:21,010 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:19:21,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:19:21,018 INFO L225 Difference]: With dead ends: 3951 [2022-03-03 20:19:21,018 INFO L226 Difference]: Without dead ends: 3888 [2022-03-03 20:19:21,018 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 481 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=227, Invalid=2125, Unknown=0, NotChecked=0, Total=2352 [2022-03-03 20:19:21,021 INFO L933 BasicCegarLoop]: 102 mSDtfsCounter, 241 mSDsluCounter, 1227 mSDsCounter, 0 mSdLazyCounter, 1687 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 1021 SdHoareTripleChecker+Invalid, 1735 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 1687 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 20:19:21,022 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [241 Valid, 1021 Invalid, 1735 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 1687 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 20:19:21,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3888 states. [2022-03-03 20:19:21,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3888 to 3554. [2022-03-03 20:19:21,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3554 states, 3553 states have (on average 3.3563186039966224) internal successors, (11925), 3553 states have internal predecessors, (11925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:21,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3554 states to 3554 states and 11925 transitions. [2022-03-03 20:19:21,079 INFO L78 Accepts]: Start accepts. Automaton has 3554 states and 11925 transitions. Word has length 39 [2022-03-03 20:19:21,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:19:21,079 INFO L470 AbstractCegarLoop]: Abstraction has 3554 states and 11925 transitions. [2022-03-03 20:19:21,079 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:21,079 INFO L276 IsEmpty]: Start isEmpty. Operand 3554 states and 11925 transitions. [2022-03-03 20:19:21,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:19:21,085 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:19:21,085 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:19:21,085 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-03-03 20:19:21,085 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:19:21,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:19:21,087 INFO L85 PathProgramCache]: Analyzing trace with hash -1181437400, now seen corresponding path program 62 times [2022-03-03 20:19:21,087 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:19:21,087 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081273165] [2022-03-03 20:19:21,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:19:21,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:19:21,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:19:21,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:19:21,319 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:19:21,319 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081273165] [2022-03-03 20:19:21,319 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081273165] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:19:21,319 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:19:21,319 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:19:21,319 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537053782] [2022-03-03 20:19:21,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:19:21,320 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:19:21,320 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:19:21,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:19:21,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:19:21,320 INFO L87 Difference]: Start difference. First operand 3554 states and 11925 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:22,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:19:22,407 INFO L93 Difference]: Finished difference Result 4114 states and 13511 transitions. [2022-03-03 20:19:22,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-03-03 20:19:22,407 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:19:22,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:19:22,415 INFO L225 Difference]: With dead ends: 4114 [2022-03-03 20:19:22,415 INFO L226 Difference]: Without dead ends: 4071 [2022-03-03 20:19:22,415 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 789 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=300, Invalid=3006, Unknown=0, NotChecked=0, Total=3306 [2022-03-03 20:19:22,415 INFO L933 BasicCegarLoop]: 103 mSDtfsCounter, 312 mSDsluCounter, 1327 mSDsCounter, 0 mSdLazyCounter, 1915 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 1084 SdHoareTripleChecker+Invalid, 1973 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 1915 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:19:22,416 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [312 Valid, 1084 Invalid, 1973 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 1915 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:19:22,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4071 states. [2022-03-03 20:19:22,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4071 to 3562. [2022-03-03 20:19:22,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3562 states, 3561 states have (on average 3.3543948329121034) internal successors, (11945), 3561 states have internal predecessors, (11945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:22,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3562 states to 3562 states and 11945 transitions. [2022-03-03 20:19:22,463 INFO L78 Accepts]: Start accepts. Automaton has 3562 states and 11945 transitions. Word has length 39 [2022-03-03 20:19:22,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:19:22,463 INFO L470 AbstractCegarLoop]: Abstraction has 3562 states and 11945 transitions. [2022-03-03 20:19:22,464 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:22,464 INFO L276 IsEmpty]: Start isEmpty. Operand 3562 states and 11945 transitions. [2022-03-03 20:19:22,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:19:22,468 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:19:22,468 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:19:22,468 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-03-03 20:19:22,468 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:19:22,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:19:22,469 INFO L85 PathProgramCache]: Analyzing trace with hash 1332931594, now seen corresponding path program 63 times [2022-03-03 20:19:22,469 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:19:22,469 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431969681] [2022-03-03 20:19:22,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:19:22,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:19:22,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:19:22,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:19:22,661 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:19:22,661 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431969681] [2022-03-03 20:19:22,661 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431969681] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:19:22,661 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:19:22,661 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:19:22,661 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954672980] [2022-03-03 20:19:22,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:19:22,661 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:19:22,661 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:19:22,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:19:22,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:19:22,662 INFO L87 Difference]: Start difference. First operand 3562 states and 11945 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:23,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:19:23,683 INFO L93 Difference]: Finished difference Result 4102 states and 13473 transitions. [2022-03-03 20:19:23,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-03-03 20:19:23,683 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:19:23,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:19:23,691 INFO L225 Difference]: With dead ends: 4102 [2022-03-03 20:19:23,691 INFO L226 Difference]: Without dead ends: 4050 [2022-03-03 20:19:23,692 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 749 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=292, Invalid=2900, Unknown=0, NotChecked=0, Total=3192 [2022-03-03 20:19:23,692 INFO L933 BasicCegarLoop]: 101 mSDtfsCounter, 307 mSDsluCounter, 1299 mSDsCounter, 0 mSdLazyCounter, 1885 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 307 SdHoareTripleChecker+Valid, 1067 SdHoareTripleChecker+Invalid, 1938 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 1885 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:19:23,693 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [307 Valid, 1067 Invalid, 1938 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 1885 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:19:23,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4050 states. [2022-03-03 20:19:23,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4050 to 3554. [2022-03-03 20:19:23,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3554 states, 3553 states have (on average 3.3563186039966224) internal successors, (11925), 3553 states have internal predecessors, (11925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:23,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3554 states to 3554 states and 11925 transitions. [2022-03-03 20:19:23,745 INFO L78 Accepts]: Start accepts. Automaton has 3554 states and 11925 transitions. Word has length 39 [2022-03-03 20:19:23,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:19:23,745 INFO L470 AbstractCegarLoop]: Abstraction has 3554 states and 11925 transitions. [2022-03-03 20:19:23,745 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:23,745 INFO L276 IsEmpty]: Start isEmpty. Operand 3554 states and 11925 transitions. [2022-03-03 20:19:23,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:19:23,750 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:19:23,750 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:19:23,751 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-03-03 20:19:23,751 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:19:23,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:19:23,751 INFO L85 PathProgramCache]: Analyzing trace with hash -262953830, now seen corresponding path program 64 times [2022-03-03 20:19:23,751 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:19:23,751 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253127050] [2022-03-03 20:19:23,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:19:23,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:19:23,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:19:23,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:19:23,959 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:19:23,959 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253127050] [2022-03-03 20:19:23,959 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253127050] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:19:23,959 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:19:23,959 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:19:23,964 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137962936] [2022-03-03 20:19:23,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:19:23,965 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:19:23,965 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:19:23,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:19:23,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:19:23,969 INFO L87 Difference]: Start difference. First operand 3554 states and 11925 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:24,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:19:24,983 INFO L93 Difference]: Finished difference Result 4079 states and 13396 transitions. [2022-03-03 20:19:24,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-03 20:19:24,983 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:19:24,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:19:24,991 INFO L225 Difference]: With dead ends: 4079 [2022-03-03 20:19:24,991 INFO L226 Difference]: Without dead ends: 4024 [2022-03-03 20:19:24,992 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 544 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=244, Invalid=2306, Unknown=0, NotChecked=0, Total=2550 [2022-03-03 20:19:24,992 INFO L933 BasicCegarLoop]: 101 mSDtfsCounter, 269 mSDsluCounter, 1274 mSDsCounter, 0 mSdLazyCounter, 1738 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 1031 SdHoareTripleChecker+Invalid, 1789 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 1738 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:19:24,996 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [269 Valid, 1031 Invalid, 1789 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 1738 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:19:25,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4024 states. [2022-03-03 20:19:25,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4024 to 3556. [2022-03-03 20:19:25,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3556 states, 3555 states have (on average 3.3552742616033755) internal successors, (11928), 3555 states have internal predecessors, (11928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:25,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3556 states to 3556 states and 11928 transitions. [2022-03-03 20:19:25,063 INFO L78 Accepts]: Start accepts. Automaton has 3556 states and 11928 transitions. Word has length 39 [2022-03-03 20:19:25,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:19:25,063 INFO L470 AbstractCegarLoop]: Abstraction has 3556 states and 11928 transitions. [2022-03-03 20:19:25,063 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:25,063 INFO L276 IsEmpty]: Start isEmpty. Operand 3556 states and 11928 transitions. [2022-03-03 20:19:25,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:19:25,069 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:19:25,069 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:19:25,069 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-03-03 20:19:25,069 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:19:25,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:19:25,069 INFO L85 PathProgramCache]: Analyzing trace with hash 909698392, now seen corresponding path program 65 times [2022-03-03 20:19:25,069 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:19:25,069 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63292114] [2022-03-03 20:19:25,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:19:25,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:19:25,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:19:25,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:19:25,324 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:19:25,324 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63292114] [2022-03-03 20:19:25,324 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63292114] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:19:25,324 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:19:25,330 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:19:25,330 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975100196] [2022-03-03 20:19:25,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:19:25,330 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:19:25,330 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:19:25,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:19:25,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:19:25,331 INFO L87 Difference]: Start difference. First operand 3556 states and 11928 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:26,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:19:26,123 INFO L93 Difference]: Finished difference Result 4014 states and 13244 transitions. [2022-03-03 20:19:26,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-03-03 20:19:26,123 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:19:26,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:19:26,131 INFO L225 Difference]: With dead ends: 4014 [2022-03-03 20:19:26,131 INFO L226 Difference]: Without dead ends: 3968 [2022-03-03 20:19:26,132 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 447 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=219, Invalid=2037, Unknown=0, NotChecked=0, Total=2256 [2022-03-03 20:19:26,135 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 254 mSDsluCounter, 1274 mSDsCounter, 0 mSdLazyCounter, 1700 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 1029 SdHoareTripleChecker+Invalid, 1739 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1700 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 20:19:26,135 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [254 Valid, 1029 Invalid, 1739 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1700 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 20:19:26,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3968 states. [2022-03-03 20:19:26,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3968 to 3560. [2022-03-03 20:19:26,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3560 states, 3559 states have (on average 3.3537510536667603) internal successors, (11936), 3559 states have internal predecessors, (11936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:26,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3560 states to 3560 states and 11936 transitions. [2022-03-03 20:19:26,184 INFO L78 Accepts]: Start accepts. Automaton has 3560 states and 11936 transitions. Word has length 39 [2022-03-03 20:19:26,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:19:26,184 INFO L470 AbstractCegarLoop]: Abstraction has 3560 states and 11936 transitions. [2022-03-03 20:19:26,184 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:26,184 INFO L276 IsEmpty]: Start isEmpty. Operand 3560 states and 11936 transitions. [2022-03-03 20:19:26,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:19:26,189 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:19:26,189 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:19:26,189 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-03-03 20:19:26,189 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:19:26,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:19:26,189 INFO L85 PathProgramCache]: Analyzing trace with hash 662232230, now seen corresponding path program 66 times [2022-03-03 20:19:26,189 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:19:26,189 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217376840] [2022-03-03 20:19:26,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:19:26,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:19:26,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:19:26,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:19:26,450 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:19:26,450 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217376840] [2022-03-03 20:19:26,450 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217376840] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:19:26,450 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:19:26,450 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:19:26,450 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722891741] [2022-03-03 20:19:26,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:19:26,450 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:19:26,451 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:19:26,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:19:26,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:19:26,451 INFO L87 Difference]: Start difference. First operand 3560 states and 11936 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:27,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:19:27,402 INFO L93 Difference]: Finished difference Result 3980 states and 13174 transitions. [2022-03-03 20:19:27,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-03-03 20:19:27,402 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:19:27,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:19:27,410 INFO L225 Difference]: With dead ends: 3980 [2022-03-03 20:19:27,410 INFO L226 Difference]: Without dead ends: 3931 [2022-03-03 20:19:27,410 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 575 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=250, Invalid=2402, Unknown=0, NotChecked=0, Total=2652 [2022-03-03 20:19:27,412 INFO L933 BasicCegarLoop]: 101 mSDtfsCounter, 262 mSDsluCounter, 1259 mSDsCounter, 0 mSdLazyCounter, 1685 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 1052 SdHoareTripleChecker+Invalid, 1735 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 1685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:19:27,424 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [262 Valid, 1052 Invalid, 1735 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 1685 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:19:27,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3931 states. [2022-03-03 20:19:27,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3931 to 3550. [2022-03-03 20:19:27,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3550 states, 3549 states have (on average 3.3572837418991264) internal successors, (11915), 3549 states have internal predecessors, (11915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:27,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3550 states to 3550 states and 11915 transitions. [2022-03-03 20:19:27,473 INFO L78 Accepts]: Start accepts. Automaton has 3550 states and 11915 transitions. Word has length 39 [2022-03-03 20:19:27,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:19:27,473 INFO L470 AbstractCegarLoop]: Abstraction has 3550 states and 11915 transitions. [2022-03-03 20:19:27,473 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:27,474 INFO L276 IsEmpty]: Start isEmpty. Operand 3550 states and 11915 transitions. [2022-03-03 20:19:27,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:19:27,478 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:19:27,479 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:19:27,479 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-03-03 20:19:27,479 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:19:27,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:19:27,479 INFO L85 PathProgramCache]: Analyzing trace with hash -2093859544, now seen corresponding path program 67 times [2022-03-03 20:19:27,479 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:19:27,479 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317973707] [2022-03-03 20:19:27,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:19:27,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:19:27,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:19:27,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:19:27,722 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:19:27,722 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317973707] [2022-03-03 20:19:27,722 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317973707] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:19:27,723 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:19:27,723 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:19:27,723 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567896574] [2022-03-03 20:19:27,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:19:27,723 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:19:27,723 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:19:27,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:19:27,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:19:27,723 INFO L87 Difference]: Start difference. First operand 3550 states and 11915 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:28,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:19:28,734 INFO L93 Difference]: Finished difference Result 4021 states and 13349 transitions. [2022-03-03 20:19:28,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-03-03 20:19:28,734 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:19:28,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:19:28,742 INFO L225 Difference]: With dead ends: 4021 [2022-03-03 20:19:28,742 INFO L226 Difference]: Without dead ends: 3954 [2022-03-03 20:19:28,743 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 337 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=184, Invalid=1708, Unknown=0, NotChecked=0, Total=1892 [2022-03-03 20:19:28,744 INFO L933 BasicCegarLoop]: 109 mSDtfsCounter, 231 mSDsluCounter, 1226 mSDsCounter, 0 mSdLazyCounter, 1776 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 1037 SdHoareTripleChecker+Invalid, 1809 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:19:28,744 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [231 Valid, 1037 Invalid, 1809 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1776 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:19:28,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3954 states. [2022-03-03 20:19:28,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3954 to 3590. [2022-03-03 20:19:28,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3590 states, 3589 states have (on average 3.3499582056283086) internal successors, (12023), 3589 states have internal predecessors, (12023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:28,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3590 states to 3590 states and 12023 transitions. [2022-03-03 20:19:28,800 INFO L78 Accepts]: Start accepts. Automaton has 3590 states and 12023 transitions. Word has length 39 [2022-03-03 20:19:28,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:19:28,800 INFO L470 AbstractCegarLoop]: Abstraction has 3590 states and 12023 transitions. [2022-03-03 20:19:28,800 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:28,801 INFO L276 IsEmpty]: Start isEmpty. Operand 3590 states and 12023 transitions. [2022-03-03 20:19:28,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:19:28,806 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:19:28,806 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:19:28,806 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-03-03 20:19:28,806 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:19:28,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:19:28,806 INFO L85 PathProgramCache]: Analyzing trace with hash 2070512904, now seen corresponding path program 68 times [2022-03-03 20:19:28,807 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:19:28,807 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287118049] [2022-03-03 20:19:28,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:19:28,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:19:28,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:19:29,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:19:29,019 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:19:29,019 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287118049] [2022-03-03 20:19:29,019 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287118049] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:19:29,019 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:19:29,019 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:19:29,019 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408037560] [2022-03-03 20:19:29,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:19:29,020 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:19:29,020 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:19:29,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:19:29,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:19:29,020 INFO L87 Difference]: Start difference. First operand 3590 states and 12023 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:29,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:19:29,832 INFO L93 Difference]: Finished difference Result 4009 states and 13309 transitions. [2022-03-03 20:19:29,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-03 20:19:29,832 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:19:29,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:19:29,841 INFO L225 Difference]: With dead ends: 4009 [2022-03-03 20:19:29,841 INFO L226 Difference]: Without dead ends: 3946 [2022-03-03 20:19:29,841 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 336 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=186, Invalid=1706, Unknown=0, NotChecked=0, Total=1892 [2022-03-03 20:19:29,842 INFO L933 BasicCegarLoop]: 111 mSDtfsCounter, 231 mSDsluCounter, 1247 mSDsCounter, 0 mSdLazyCounter, 1785 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 1061 SdHoareTripleChecker+Invalid, 1821 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1785 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:19:29,842 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [231 Valid, 1061 Invalid, 1821 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1785 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:19:29,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3946 states. [2022-03-03 20:19:29,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3946 to 3582. [2022-03-03 20:19:29,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3582 states, 3581 states have (on average 3.3507400167550965) internal successors, (11999), 3581 states have internal predecessors, (11999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:29,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3582 states to 3582 states and 11999 transitions. [2022-03-03 20:19:29,885 INFO L78 Accepts]: Start accepts. Automaton has 3582 states and 11999 transitions. Word has length 39 [2022-03-03 20:19:29,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:19:29,885 INFO L470 AbstractCegarLoop]: Abstraction has 3582 states and 11999 transitions. [2022-03-03 20:19:29,885 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:29,885 INFO L276 IsEmpty]: Start isEmpty. Operand 3582 states and 11999 transitions. [2022-03-03 20:19:29,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:19:29,890 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:19:29,890 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:19:29,890 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-03-03 20:19:29,890 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:19:29,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:19:29,890 INFO L85 PathProgramCache]: Analyzing trace with hash 1540612456, now seen corresponding path program 69 times [2022-03-03 20:19:29,890 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:19:29,890 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710062624] [2022-03-03 20:19:29,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:19:29,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:19:29,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:19:30,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:19:30,115 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:19:30,115 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710062624] [2022-03-03 20:19:30,115 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710062624] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:19:30,115 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:19:30,115 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:19:30,115 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350238754] [2022-03-03 20:19:30,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:19:30,115 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:19:30,115 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:19:30,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:19:30,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:19:30,116 INFO L87 Difference]: Start difference. First operand 3582 states and 11999 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:30,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:19:30,941 INFO L93 Difference]: Finished difference Result 4021 states and 13337 transitions. [2022-03-03 20:19:30,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-03-03 20:19:30,941 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:19:30,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:19:30,949 INFO L225 Difference]: With dead ends: 4021 [2022-03-03 20:19:30,949 INFO L226 Difference]: Without dead ends: 3898 [2022-03-03 20:19:30,950 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 335 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=182, Invalid=1710, Unknown=0, NotChecked=0, Total=1892 [2022-03-03 20:19:30,950 INFO L933 BasicCegarLoop]: 116 mSDtfsCounter, 229 mSDsluCounter, 1310 mSDsCounter, 0 mSdLazyCounter, 1807 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 1130 SdHoareTripleChecker+Invalid, 1839 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1807 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:19:30,950 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [229 Valid, 1130 Invalid, 1839 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1807 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:19:30,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3898 states. [2022-03-03 20:19:30,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3898 to 3550. [2022-03-03 20:19:31,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3550 states, 3549 states have (on average 3.352775429698507) internal successors, (11899), 3549 states have internal predecessors, (11899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:31,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3550 states to 3550 states and 11899 transitions. [2022-03-03 20:19:31,011 INFO L78 Accepts]: Start accepts. Automaton has 3550 states and 11899 transitions. Word has length 39 [2022-03-03 20:19:31,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:19:31,011 INFO L470 AbstractCegarLoop]: Abstraction has 3550 states and 11899 transitions. [2022-03-03 20:19:31,011 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:31,011 INFO L276 IsEmpty]: Start isEmpty. Operand 3550 states and 11899 transitions. [2022-03-03 20:19:31,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:19:31,017 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:19:31,017 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:19:31,017 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-03-03 20:19:31,017 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:19:31,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:19:31,017 INFO L85 PathProgramCache]: Analyzing trace with hash 822201286, now seen corresponding path program 70 times [2022-03-03 20:19:31,017 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:19:31,017 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935704855] [2022-03-03 20:19:31,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:19:31,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:19:31,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:19:31,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:19:31,249 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:19:31,250 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935704855] [2022-03-03 20:19:31,250 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935704855] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:19:31,250 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:19:31,250 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:19:31,250 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114383760] [2022-03-03 20:19:31,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:19:31,250 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:19:31,250 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:19:31,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:19:31,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:19:31,250 INFO L87 Difference]: Start difference. First operand 3550 states and 11899 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:32,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:19:32,790 INFO L93 Difference]: Finished difference Result 5827 states and 19628 transitions. [2022-03-03 20:19:32,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-03 20:19:32,790 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:19:32,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:19:32,802 INFO L225 Difference]: With dead ends: 5827 [2022-03-03 20:19:32,803 INFO L226 Difference]: Without dead ends: 5741 [2022-03-03 20:19:32,803 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1087 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=346, Invalid=3814, Unknown=0, NotChecked=0, Total=4160 [2022-03-03 20:19:32,803 INFO L933 BasicCegarLoop]: 177 mSDtfsCounter, 488 mSDsluCounter, 2068 mSDsCounter, 0 mSdLazyCounter, 2690 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 488 SdHoareTripleChecker+Valid, 1915 SdHoareTripleChecker+Invalid, 2772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 2690 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 20:19:32,803 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [488 Valid, 1915 Invalid, 2772 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 2690 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 20:19:32,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5741 states. [2022-03-03 20:19:32,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5741 to 3628. [2022-03-03 20:19:32,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3628 states, 3627 states have (on average 3.3493245106148333) internal successors, (12148), 3627 states have internal predecessors, (12148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:32,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3628 states to 3628 states and 12148 transitions. [2022-03-03 20:19:32,869 INFO L78 Accepts]: Start accepts. Automaton has 3628 states and 12148 transitions. Word has length 39 [2022-03-03 20:19:32,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:19:32,869 INFO L470 AbstractCegarLoop]: Abstraction has 3628 states and 12148 transitions. [2022-03-03 20:19:32,869 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:32,869 INFO L276 IsEmpty]: Start isEmpty. Operand 3628 states and 12148 transitions. [2022-03-03 20:19:32,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:19:32,874 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:19:32,875 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:19:32,875 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-03-03 20:19:32,875 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:19:32,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:19:32,875 INFO L85 PathProgramCache]: Analyzing trace with hash -958397016, now seen corresponding path program 71 times [2022-03-03 20:19:32,875 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:19:32,875 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578826398] [2022-03-03 20:19:32,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:19:32,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:19:32,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:19:33,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:19:33,056 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:19:33,056 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578826398] [2022-03-03 20:19:33,056 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578826398] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:19:33,056 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:19:33,056 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:19:33,056 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988959336] [2022-03-03 20:19:33,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:19:33,057 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:19:33,057 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:19:33,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:19:33,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:19:33,075 INFO L87 Difference]: Start difference. First operand 3628 states and 12148 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:34,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:19:34,918 INFO L93 Difference]: Finished difference Result 6643 states and 22454 transitions. [2022-03-03 20:19:34,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-03-03 20:19:34,918 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:19:34,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:19:34,933 INFO L225 Difference]: With dead ends: 6643 [2022-03-03 20:19:34,933 INFO L226 Difference]: Without dead ends: 6539 [2022-03-03 20:19:34,933 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1382 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=389, Invalid=4581, Unknown=0, NotChecked=0, Total=4970 [2022-03-03 20:19:34,934 INFO L933 BasicCegarLoop]: 211 mSDtfsCounter, 517 mSDsluCounter, 2388 mSDsCounter, 0 mSdLazyCounter, 3026 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 517 SdHoareTripleChecker+Valid, 2271 SdHoareTripleChecker+Invalid, 3114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 3026 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-03 20:19:34,934 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [517 Valid, 2271 Invalid, 3114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 3026 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-03 20:19:34,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6539 states. [2022-03-03 20:19:34,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6539 to 3598. [2022-03-03 20:19:34,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3598 states, 3597 states have (on average 3.349179872115652) internal successors, (12047), 3597 states have internal predecessors, (12047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:35,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3598 states to 3598 states and 12047 transitions. [2022-03-03 20:19:35,002 INFO L78 Accepts]: Start accepts. Automaton has 3598 states and 12047 transitions. Word has length 39 [2022-03-03 20:19:35,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:19:35,002 INFO L470 AbstractCegarLoop]: Abstraction has 3598 states and 12047 transitions. [2022-03-03 20:19:35,002 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:35,002 INFO L276 IsEmpty]: Start isEmpty. Operand 3598 states and 12047 transitions. [2022-03-03 20:19:35,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:19:35,026 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:19:35,026 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:19:35,026 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-03-03 20:19:35,026 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:19:35,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:19:35,027 INFO L85 PathProgramCache]: Analyzing trace with hash 1740684856, now seen corresponding path program 72 times [2022-03-03 20:19:35,027 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:19:35,027 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114347357] [2022-03-03 20:19:35,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:19:35,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:19:35,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:19:35,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:19:35,325 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:19:35,325 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114347357] [2022-03-03 20:19:35,325 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114347357] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:19:35,325 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:19:35,325 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:19:35,325 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803656265] [2022-03-03 20:19:35,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:19:35,325 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:19:35,325 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:19:35,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:19:35,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:19:35,326 INFO L87 Difference]: Start difference. First operand 3598 states and 12047 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:36,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:19:36,864 INFO L93 Difference]: Finished difference Result 5563 states and 18662 transitions. [2022-03-03 20:19:36,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-03-03 20:19:36,864 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:19:36,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:19:36,877 INFO L225 Difference]: With dead ends: 5563 [2022-03-03 20:19:36,877 INFO L226 Difference]: Without dead ends: 5508 [2022-03-03 20:19:36,877 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 680 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=267, Invalid=2703, Unknown=0, NotChecked=0, Total=2970 [2022-03-03 20:19:36,877 INFO L933 BasicCegarLoop]: 173 mSDtfsCounter, 399 mSDsluCounter, 1984 mSDsCounter, 0 mSdLazyCounter, 2426 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 399 SdHoareTripleChecker+Valid, 1828 SdHoareTripleChecker+Invalid, 2484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 2426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-03 20:19:36,878 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [399 Valid, 1828 Invalid, 2484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 2426 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-03 20:19:36,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5508 states. [2022-03-03 20:19:36,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5508 to 3626. [2022-03-03 20:19:36,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3626 states, 3625 states have (on average 3.3481379310344828) internal successors, (12137), 3625 states have internal predecessors, (12137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:36,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3626 states to 3626 states and 12137 transitions. [2022-03-03 20:19:36,949 INFO L78 Accepts]: Start accepts. Automaton has 3626 states and 12137 transitions. Word has length 39 [2022-03-03 20:19:36,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:19:36,949 INFO L470 AbstractCegarLoop]: Abstraction has 3626 states and 12137 transitions. [2022-03-03 20:19:36,949 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:36,949 INFO L276 IsEmpty]: Start isEmpty. Operand 3626 states and 12137 transitions. [2022-03-03 20:19:36,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:19:36,955 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:19:36,955 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:19:36,955 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-03-03 20:19:36,955 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:19:36,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:19:36,955 INFO L85 PathProgramCache]: Analyzing trace with hash -1381630218, now seen corresponding path program 73 times [2022-03-03 20:19:36,956 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:19:36,956 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439071089] [2022-03-03 20:19:36,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:19:36,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:19:36,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:19:37,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:19:37,203 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:19:37,203 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439071089] [2022-03-03 20:19:37,203 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439071089] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:19:37,203 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:19:37,203 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:19:37,203 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600580548] [2022-03-03 20:19:37,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:19:37,203 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:19:37,203 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:19:37,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:19:37,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:19:37,204 INFO L87 Difference]: Start difference. First operand 3626 states and 12137 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:38,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:19:38,984 INFO L93 Difference]: Finished difference Result 6424 states and 21596 transitions. [2022-03-03 20:19:38,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-03-03 20:19:38,984 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:19:38,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:19:38,997 INFO L225 Difference]: With dead ends: 6424 [2022-03-03 20:19:38,997 INFO L226 Difference]: Without dead ends: 6364 [2022-03-03 20:19:38,998 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 877 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=298, Invalid=3242, Unknown=0, NotChecked=0, Total=3540 [2022-03-03 20:19:38,998 INFO L933 BasicCegarLoop]: 207 mSDtfsCounter, 425 mSDsluCounter, 2324 mSDsCounter, 0 mSdLazyCounter, 2761 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 425 SdHoareTripleChecker+Valid, 2206 SdHoareTripleChecker+Invalid, 2822 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 2761 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-03 20:19:38,998 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [425 Valid, 2206 Invalid, 2822 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 2761 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-03 20:19:39,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6364 states. [2022-03-03 20:19:39,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6364 to 3624. [2022-03-03 20:19:39,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3624 states, 3623 states have (on average 3.348606127518631) internal successors, (12132), 3623 states have internal predecessors, (12132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:39,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3624 states to 3624 states and 12132 transitions. [2022-03-03 20:19:39,064 INFO L78 Accepts]: Start accepts. Automaton has 3624 states and 12132 transitions. Word has length 39 [2022-03-03 20:19:39,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:19:39,064 INFO L470 AbstractCegarLoop]: Abstraction has 3624 states and 12132 transitions. [2022-03-03 20:19:39,064 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:39,064 INFO L276 IsEmpty]: Start isEmpty. Operand 3624 states and 12132 transitions. [2022-03-03 20:19:39,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:19:39,070 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:19:39,070 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:19:39,070 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-03-03 20:19:39,070 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:19:39,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:19:39,070 INFO L85 PathProgramCache]: Analyzing trace with hash 1035933476, now seen corresponding path program 74 times [2022-03-03 20:19:39,070 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:19:39,070 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577575143] [2022-03-03 20:19:39,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:19:39,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:19:39,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:19:39,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:19:39,311 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:19:39,311 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577575143] [2022-03-03 20:19:39,311 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577575143] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:19:39,311 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:19:39,312 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:19:39,312 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792306024] [2022-03-03 20:19:39,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:19:39,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:19:39,312 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:19:39,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:19:39,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:19:39,312 INFO L87 Difference]: Start difference. First operand 3624 states and 12132 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:40,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:19:40,717 INFO L93 Difference]: Finished difference Result 5514 states and 18559 transitions. [2022-03-03 20:19:40,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-03 20:19:40,717 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:19:40,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:19:40,758 INFO L225 Difference]: With dead ends: 5514 [2022-03-03 20:19:40,758 INFO L226 Difference]: Without dead ends: 5423 [2022-03-03 20:19:40,758 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 542 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=232, Invalid=2318, Unknown=0, NotChecked=0, Total=2550 [2022-03-03 20:19:40,759 INFO L933 BasicCegarLoop]: 173 mSDtfsCounter, 366 mSDsluCounter, 1933 mSDsCounter, 0 mSdLazyCounter, 2330 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 366 SdHoareTripleChecker+Valid, 1807 SdHoareTripleChecker+Invalid, 2379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 2330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 20:19:40,759 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [366 Valid, 1807 Invalid, 2379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 2330 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 20:19:40,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5423 states. [2022-03-03 20:19:40,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5423 to 3624. [2022-03-03 20:19:40,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3624 states, 3623 states have (on average 3.346950041402153) internal successors, (12126), 3623 states have internal predecessors, (12126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:40,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3624 states to 3624 states and 12126 transitions. [2022-03-03 20:19:40,842 INFO L78 Accepts]: Start accepts. Automaton has 3624 states and 12126 transitions. Word has length 39 [2022-03-03 20:19:40,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:19:40,842 INFO L470 AbstractCegarLoop]: Abstraction has 3624 states and 12126 transitions. [2022-03-03 20:19:40,842 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:40,842 INFO L276 IsEmpty]: Start isEmpty. Operand 3624 states and 12126 transitions. [2022-03-03 20:19:40,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:19:40,848 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:19:40,848 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:19:40,848 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-03-03 20:19:40,848 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:19:40,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:19:40,848 INFO L85 PathProgramCache]: Analyzing trace with hash -466548730, now seen corresponding path program 75 times [2022-03-03 20:19:40,848 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:19:40,848 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363501223] [2022-03-03 20:19:40,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:19:40,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:19:40,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:19:41,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:19:41,052 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:19:41,052 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363501223] [2022-03-03 20:19:41,052 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363501223] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:19:41,052 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:19:41,052 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:19:41,052 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462178229] [2022-03-03 20:19:41,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:19:41,053 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:19:41,053 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:19:41,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:19:41,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:19:41,053 INFO L87 Difference]: Start difference. First operand 3624 states and 12126 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:42,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:19:42,510 INFO L93 Difference]: Finished difference Result 6327 states and 21361 transitions. [2022-03-03 20:19:42,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-03-03 20:19:42,510 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:19:42,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:19:42,527 INFO L225 Difference]: With dead ends: 6327 [2022-03-03 20:19:42,527 INFO L226 Difference]: Without dead ends: 6211 [2022-03-03 20:19:42,528 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 675 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=257, Invalid=2713, Unknown=0, NotChecked=0, Total=2970 [2022-03-03 20:19:42,528 INFO L933 BasicCegarLoop]: 207 mSDtfsCounter, 374 mSDsluCounter, 2310 mSDsCounter, 0 mSdLazyCounter, 2703 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 374 SdHoareTripleChecker+Valid, 2194 SdHoareTripleChecker+Invalid, 2754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 2703 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 20:19:42,528 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [374 Valid, 2194 Invalid, 2754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 2703 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 20:19:42,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6211 states. [2022-03-03 20:19:42,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6211 to 3586. [2022-03-03 20:19:42,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3586 states, 3585 states have (on average 3.3531380753138076) internal successors, (12021), 3585 states have internal predecessors, (12021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:42,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3586 states to 3586 states and 12021 transitions. [2022-03-03 20:19:42,600 INFO L78 Accepts]: Start accepts. Automaton has 3586 states and 12021 transitions. Word has length 39 [2022-03-03 20:19:42,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:19:42,600 INFO L470 AbstractCegarLoop]: Abstraction has 3586 states and 12021 transitions. [2022-03-03 20:19:42,600 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:42,600 INFO L276 IsEmpty]: Start isEmpty. Operand 3586 states and 12021 transitions. [2022-03-03 20:19:42,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:19:42,605 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:19:42,605 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:19:42,605 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-03-03 20:19:42,605 INFO L402 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:19:42,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:19:42,606 INFO L85 PathProgramCache]: Analyzing trace with hash 162684534, now seen corresponding path program 76 times [2022-03-03 20:19:42,606 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:19:42,606 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190843518] [2022-03-03 20:19:42,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:19:42,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:19:42,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:19:42,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:19:42,848 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:19:42,848 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190843518] [2022-03-03 20:19:42,848 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190843518] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:19:42,848 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:19:42,848 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:19:42,848 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619414254] [2022-03-03 20:19:42,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:19:42,848 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:19:42,848 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:19:42,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:19:42,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:19:42,848 INFO L87 Difference]: Start difference. First operand 3586 states and 12021 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:43,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:19:43,775 INFO L93 Difference]: Finished difference Result 3853 states and 12803 transitions. [2022-03-03 20:19:43,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 20:19:43,775 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:19:43,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:19:43,785 INFO L225 Difference]: With dead ends: 3853 [2022-03-03 20:19:43,785 INFO L226 Difference]: Without dead ends: 3786 [2022-03-03 20:19:43,786 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 264 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=164, Invalid=1476, Unknown=0, NotChecked=0, Total=1640 [2022-03-03 20:19:43,786 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 176 mSDsluCounter, 1121 mSDsCounter, 0 mSdLazyCounter, 1483 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 921 SdHoareTripleChecker+Invalid, 1507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:19:43,786 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [176 Valid, 921 Invalid, 1507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1483 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:19:43,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3786 states. [2022-03-03 20:19:43,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3786 to 3634. [2022-03-03 20:19:43,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3634 states, 3633 states have (on average 3.3440682631434075) internal successors, (12149), 3633 states have internal predecessors, (12149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:43,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3634 states to 3634 states and 12149 transitions. [2022-03-03 20:19:43,840 INFO L78 Accepts]: Start accepts. Automaton has 3634 states and 12149 transitions. Word has length 39 [2022-03-03 20:19:43,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:19:43,840 INFO L470 AbstractCegarLoop]: Abstraction has 3634 states and 12149 transitions. [2022-03-03 20:19:43,840 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:43,840 INFO L276 IsEmpty]: Start isEmpty. Operand 3634 states and 12149 transitions. [2022-03-03 20:19:43,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:19:43,846 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:19:43,846 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:19:43,846 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-03-03 20:19:43,846 INFO L402 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:19:43,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:19:43,846 INFO L85 PathProgramCache]: Analyzing trace with hash -9458684, now seen corresponding path program 77 times [2022-03-03 20:19:43,846 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:19:43,846 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993985288] [2022-03-03 20:19:43,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:19:43,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:19:43,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:19:44,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:19:44,090 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:19:44,091 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993985288] [2022-03-03 20:19:44,091 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993985288] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:19:44,091 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:19:44,091 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:19:44,091 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790553843] [2022-03-03 20:19:44,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:19:44,091 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:19:44,091 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:19:44,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:19:44,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:19:44,091 INFO L87 Difference]: Start difference. First operand 3634 states and 12149 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:45,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:19:45,018 INFO L93 Difference]: Finished difference Result 3841 states and 12763 transitions. [2022-03-03 20:19:45,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-03-03 20:19:45,018 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:19:45,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:19:45,027 INFO L225 Difference]: With dead ends: 3841 [2022-03-03 20:19:45,028 INFO L226 Difference]: Without dead ends: 3778 [2022-03-03 20:19:45,028 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=162, Invalid=1478, Unknown=0, NotChecked=0, Total=1640 [2022-03-03 20:19:45,028 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 173 mSDsluCounter, 1121 mSDsCounter, 0 mSdLazyCounter, 1469 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 933 SdHoareTripleChecker+Invalid, 1495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:19:45,028 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [173 Valid, 933 Invalid, 1495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1469 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:19:45,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3778 states. [2022-03-03 20:19:45,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3778 to 3626. [2022-03-03 20:19:45,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3626 states, 3625 states have (on average 3.3448275862068964) internal successors, (12125), 3625 states have internal predecessors, (12125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:45,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3626 states to 3626 states and 12125 transitions. [2022-03-03 20:19:45,083 INFO L78 Accepts]: Start accepts. Automaton has 3626 states and 12125 transitions. Word has length 39 [2022-03-03 20:19:45,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:19:45,083 INFO L470 AbstractCegarLoop]: Abstraction has 3626 states and 12125 transitions. [2022-03-03 20:19:45,083 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:45,083 INFO L276 IsEmpty]: Start isEmpty. Operand 3626 states and 12125 transitions. [2022-03-03 20:19:45,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:19:45,088 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:19:45,089 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:19:45,089 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2022-03-03 20:19:45,089 INFO L402 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:19:45,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:19:45,089 INFO L85 PathProgramCache]: Analyzing trace with hash -1812292840, now seen corresponding path program 78 times [2022-03-03 20:19:45,089 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:19:45,089 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421455844] [2022-03-03 20:19:45,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:19:45,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:19:45,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:19:45,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:19:45,332 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:19:45,332 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421455844] [2022-03-03 20:19:45,332 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421455844] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:19:45,332 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:19:45,332 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:19:45,332 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740415531] [2022-03-03 20:19:45,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:19:45,333 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:19:45,333 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:19:45,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:19:45,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:19:45,333 INFO L87 Difference]: Start difference. First operand 3626 states and 12125 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:46,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:19:46,201 INFO L93 Difference]: Finished difference Result 3841 states and 12755 transitions. [2022-03-03 20:19:46,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-03 20:19:46,201 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:19:46,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:19:46,210 INFO L225 Difference]: With dead ends: 3841 [2022-03-03 20:19:46,210 INFO L226 Difference]: Without dead ends: 3698 [2022-03-03 20:19:46,210 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 264 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=159, Invalid=1481, Unknown=0, NotChecked=0, Total=1640 [2022-03-03 20:19:46,210 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 165 mSDsluCounter, 1183 mSDsCounter, 0 mSdLazyCounter, 1472 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 1001 SdHoareTripleChecker+Invalid, 1494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:19:46,210 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 1001 Invalid, 1494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1472 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:19:46,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3698 states. [2022-03-03 20:19:46,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3698 to 3574. [2022-03-03 20:19:46,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3574 states, 3573 states have (on average 3.355443604813882) internal successors, (11989), 3573 states have internal predecessors, (11989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:46,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3574 states to 3574 states and 11989 transitions. [2022-03-03 20:19:46,265 INFO L78 Accepts]: Start accepts. Automaton has 3574 states and 11989 transitions. Word has length 39 [2022-03-03 20:19:46,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:19:46,265 INFO L470 AbstractCegarLoop]: Abstraction has 3574 states and 11989 transitions. [2022-03-03 20:19:46,265 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:46,265 INFO L276 IsEmpty]: Start isEmpty. Operand 3574 states and 11989 transitions. [2022-03-03 20:19:46,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:19:46,270 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:19:46,270 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:19:46,270 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2022-03-03 20:19:46,270 INFO L402 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:19:46,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:19:46,271 INFO L85 PathProgramCache]: Analyzing trace with hash -1125585594, now seen corresponding path program 79 times [2022-03-03 20:19:46,271 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:19:46,271 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638590484] [2022-03-03 20:19:46,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:19:46,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:19:46,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:19:46,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:19:46,527 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:19:46,527 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638590484] [2022-03-03 20:19:46,527 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638590484] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:19:46,527 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:19:46,527 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:19:46,527 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070490693] [2022-03-03 20:19:46,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:19:46,527 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:19:46,527 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:19:46,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:19:46,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:19:46,528 INFO L87 Difference]: Start difference. First operand 3574 states and 11989 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:47,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:19:47,551 INFO L93 Difference]: Finished difference Result 3979 states and 13198 transitions. [2022-03-03 20:19:47,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-03-03 20:19:47,551 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:19:47,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:19:47,577 INFO L225 Difference]: With dead ends: 3979 [2022-03-03 20:19:47,577 INFO L226 Difference]: Without dead ends: 3912 [2022-03-03 20:19:47,577 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 393 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=202, Invalid=1868, Unknown=0, NotChecked=0, Total=2070 [2022-03-03 20:19:47,577 INFO L933 BasicCegarLoop]: 96 mSDtfsCounter, 231 mSDsluCounter, 1148 mSDsCounter, 0 mSdLazyCounter, 1598 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 952 SdHoareTripleChecker+Invalid, 1646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 1598 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:19:47,577 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [231 Valid, 952 Invalid, 1646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 1598 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:19:47,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3912 states. [2022-03-03 20:19:47,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3912 to 3622. [2022-03-03 20:19:47,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3622 states, 3621 states have (on average 3.3512841756420877) internal successors, (12135), 3621 states have internal predecessors, (12135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:47,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3622 states to 3622 states and 12135 transitions. [2022-03-03 20:19:47,627 INFO L78 Accepts]: Start accepts. Automaton has 3622 states and 12135 transitions. Word has length 39 [2022-03-03 20:19:47,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:19:47,627 INFO L470 AbstractCegarLoop]: Abstraction has 3622 states and 12135 transitions. [2022-03-03 20:19:47,627 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:47,627 INFO L276 IsEmpty]: Start isEmpty. Operand 3622 states and 12135 transitions. [2022-03-03 20:19:47,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:19:47,632 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:19:47,632 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:19:47,633 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2022-03-03 20:19:47,633 INFO L402 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:19:47,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:19:47,633 INFO L85 PathProgramCache]: Analyzing trace with hash 1449765732, now seen corresponding path program 80 times [2022-03-03 20:19:47,633 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:19:47,633 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242919265] [2022-03-03 20:19:47,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:19:47,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:19:47,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:19:47,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:19:47,874 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:19:47,874 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242919265] [2022-03-03 20:19:47,874 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242919265] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:19:47,874 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:19:47,874 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:19:47,875 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19358398] [2022-03-03 20:19:47,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:19:47,875 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:19:47,875 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:19:47,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:19:47,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:19:47,875 INFO L87 Difference]: Start difference. First operand 3622 states and 12135 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:49,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:19:49,227 INFO L93 Difference]: Finished difference Result 4064 states and 13387 transitions. [2022-03-03 20:19:49,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-03 20:19:49,228 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:19:49,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:19:49,236 INFO L225 Difference]: With dead ends: 4064 [2022-03-03 20:19:49,236 INFO L226 Difference]: Without dead ends: 4021 [2022-03-03 20:19:49,236 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 640 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=263, Invalid=2599, Unknown=0, NotChecked=0, Total=2862 [2022-03-03 20:19:49,236 INFO L933 BasicCegarLoop]: 101 mSDtfsCounter, 285 mSDsluCounter, 1293 mSDsCounter, 0 mSdLazyCounter, 1852 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 1064 SdHoareTripleChecker+Invalid, 1904 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 1852 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-03 20:19:49,237 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [285 Valid, 1064 Invalid, 1904 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 1852 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-03 20:19:49,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4021 states. [2022-03-03 20:19:49,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4021 to 3628. [2022-03-03 20:19:49,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3628 states, 3627 states have (on average 3.3493245106148333) internal successors, (12148), 3627 states have internal predecessors, (12148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:49,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3628 states to 3628 states and 12148 transitions. [2022-03-03 20:19:49,286 INFO L78 Accepts]: Start accepts. Automaton has 3628 states and 12148 transitions. Word has length 39 [2022-03-03 20:19:49,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:19:49,286 INFO L470 AbstractCegarLoop]: Abstraction has 3628 states and 12148 transitions. [2022-03-03 20:19:49,286 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:49,286 INFO L276 IsEmpty]: Start isEmpty. Operand 3628 states and 12148 transitions. [2022-03-03 20:19:49,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:19:49,291 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:19:49,291 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:19:49,291 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2022-03-03 20:19:49,291 INFO L402 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:19:49,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:19:49,292 INFO L85 PathProgramCache]: Analyzing trace with hash -330832570, now seen corresponding path program 81 times [2022-03-03 20:19:49,292 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:19:49,292 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435203489] [2022-03-03 20:19:49,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:19:49,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:19:49,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:19:49,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:19:49,533 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:19:49,533 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435203489] [2022-03-03 20:19:49,533 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435203489] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:19:49,533 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:19:49,534 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:19:49,534 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873898848] [2022-03-03 20:19:49,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:19:49,534 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:19:49,534 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:19:49,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:19:49,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:19:49,534 INFO L87 Difference]: Start difference. First operand 3628 states and 12148 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:50,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:19:50,881 INFO L93 Difference]: Finished difference Result 4019 states and 13283 transitions. [2022-03-03 20:19:50,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-03-03 20:19:50,881 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:19:50,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:19:50,889 INFO L225 Difference]: With dead ends: 4019 [2022-03-03 20:19:50,889 INFO L226 Difference]: Without dead ends: 3955 [2022-03-03 20:19:50,889 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 603 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=254, Invalid=2502, Unknown=0, NotChecked=0, Total=2756 [2022-03-03 20:19:50,889 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 269 mSDsluCounter, 1262 mSDsCounter, 0 mSdLazyCounter, 1816 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 1046 SdHoareTripleChecker+Invalid, 1864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 1816 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:19:50,889 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [269 Valid, 1046 Invalid, 1864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 1816 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:19:50,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3955 states. [2022-03-03 20:19:50,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3955 to 3610. [2022-03-03 20:19:50,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3610 states, 3609 states have (on average 3.3541147132169575) internal successors, (12105), 3609 states have internal predecessors, (12105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:50,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3610 states to 3610 states and 12105 transitions. [2022-03-03 20:19:50,933 INFO L78 Accepts]: Start accepts. Automaton has 3610 states and 12105 transitions. Word has length 39 [2022-03-03 20:19:50,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:19:50,934 INFO L470 AbstractCegarLoop]: Abstraction has 3610 states and 12105 transitions. [2022-03-03 20:19:50,934 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:50,934 INFO L276 IsEmpty]: Start isEmpty. Operand 3610 states and 12105 transitions. [2022-03-03 20:19:50,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:19:50,938 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:19:50,938 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:19:50,939 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2022-03-03 20:19:50,939 INFO L402 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:19:50,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:19:50,939 INFO L85 PathProgramCache]: Analyzing trace with hash 289601830, now seen corresponding path program 82 times [2022-03-03 20:19:50,940 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:19:50,940 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617417150] [2022-03-03 20:19:50,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:19:50,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:19:50,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:19:51,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:19:51,157 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:19:51,157 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617417150] [2022-03-03 20:19:51,157 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617417150] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:19:51,158 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:19:51,158 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:19:51,158 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710724577] [2022-03-03 20:19:51,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:19:51,158 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:19:51,158 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:19:51,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:19:51,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:19:51,158 INFO L87 Difference]: Start difference. First operand 3610 states and 12105 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:52,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:19:52,233 INFO L93 Difference]: Finished difference Result 3979 states and 13192 transitions. [2022-03-03 20:19:52,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-03 20:19:52,234 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:19:52,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:19:52,242 INFO L225 Difference]: With dead ends: 3979 [2022-03-03 20:19:52,242 INFO L226 Difference]: Without dead ends: 3912 [2022-03-03 20:19:52,242 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 392 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=201, Invalid=1869, Unknown=0, NotChecked=0, Total=2070 [2022-03-03 20:19:52,243 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 219 mSDsluCounter, 1172 mSDsCounter, 0 mSdLazyCounter, 1621 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 975 SdHoareTripleChecker+Invalid, 1666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1621 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:19:52,243 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [219 Valid, 975 Invalid, 1666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 1621 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:19:52,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3912 states. [2022-03-03 20:19:52,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3912 to 3618. [2022-03-03 20:19:52,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3618 states, 3617 states have (on average 3.351119712468897) internal successors, (12121), 3617 states have internal predecessors, (12121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:52,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3618 states to 3618 states and 12121 transitions. [2022-03-03 20:19:52,296 INFO L78 Accepts]: Start accepts. Automaton has 3618 states and 12121 transitions. Word has length 39 [2022-03-03 20:19:52,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:19:52,296 INFO L470 AbstractCegarLoop]: Abstraction has 3618 states and 12121 transitions. [2022-03-03 20:19:52,297 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:52,297 INFO L276 IsEmpty]: Start isEmpty. Operand 3618 states and 12121 transitions. [2022-03-03 20:19:52,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:19:52,302 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:19:52,302 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:19:52,302 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2022-03-03 20:19:52,302 INFO L402 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:19:52,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:19:52,306 INFO L85 PathProgramCache]: Analyzing trace with hash 159006982, now seen corresponding path program 83 times [2022-03-03 20:19:52,306 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:19:52,307 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888981119] [2022-03-03 20:19:52,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:19:52,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:19:52,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:19:52,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:19:52,595 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:19:52,595 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888981119] [2022-03-03 20:19:52,596 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888981119] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:19:52,596 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:19:52,596 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:19:52,596 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278195624] [2022-03-03 20:19:52,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:19:52,596 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:19:52,596 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:19:52,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:19:52,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:19:52,596 INFO L87 Difference]: Start difference. First operand 3618 states and 12121 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:53,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:19:53,600 INFO L93 Difference]: Finished difference Result 3967 states and 13152 transitions. [2022-03-03 20:19:53,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-03 20:19:53,600 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:19:53,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:19:53,607 INFO L225 Difference]: With dead ends: 3967 [2022-03-03 20:19:53,607 INFO L226 Difference]: Without dead ends: 3904 [2022-03-03 20:19:53,608 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 421 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=208, Invalid=1954, Unknown=0, NotChecked=0, Total=2162 [2022-03-03 20:19:53,608 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 216 mSDsluCounter, 1197 mSDsCounter, 0 mSdLazyCounter, 1634 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 1002 SdHoareTripleChecker+Invalid, 1680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 1634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:19:53,608 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [216 Valid, 1002 Invalid, 1680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 1634 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:19:53,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3904 states. [2022-03-03 20:19:53,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3904 to 3610. [2022-03-03 20:19:53,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3610 states, 3609 states have (on average 3.353006372956498) internal successors, (12101), 3609 states have internal predecessors, (12101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:53,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3610 states to 3610 states and 12101 transitions. [2022-03-03 20:19:53,699 INFO L78 Accepts]: Start accepts. Automaton has 3610 states and 12101 transitions. Word has length 39 [2022-03-03 20:19:53,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:19:53,699 INFO L470 AbstractCegarLoop]: Abstraction has 3610 states and 12101 transitions. [2022-03-03 20:19:53,699 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:53,699 INFO L276 IsEmpty]: Start isEmpty. Operand 3610 states and 12101 transitions. [2022-03-03 20:19:53,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:19:53,704 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:19:53,704 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:19:53,704 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2022-03-03 20:19:53,704 INFO L402 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:19:53,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:19:53,705 INFO L85 PathProgramCache]: Analyzing trace with hash 23328390, now seen corresponding path program 84 times [2022-03-03 20:19:53,705 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:19:53,705 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118183144] [2022-03-03 20:19:53,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:19:53,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:19:53,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:19:53,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:19:53,954 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:19:53,954 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118183144] [2022-03-03 20:19:53,954 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118183144] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:19:53,954 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:19:53,954 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:19:53,954 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039668078] [2022-03-03 20:19:53,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:19:53,954 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:19:53,954 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:19:53,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:19:53,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:19:53,955 INFO L87 Difference]: Start difference. First operand 3610 states and 12101 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:55,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:19:55,031 INFO L93 Difference]: Finished difference Result 4130 states and 13541 transitions. [2022-03-03 20:19:55,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-03-03 20:19:55,032 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:19:55,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:19:55,040 INFO L225 Difference]: With dead ends: 4130 [2022-03-03 20:19:55,040 INFO L226 Difference]: Without dead ends: 4087 [2022-03-03 20:19:55,041 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 711 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=281, Invalid=2799, Unknown=0, NotChecked=0, Total=3080 [2022-03-03 20:19:55,041 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 286 mSDsluCounter, 1299 mSDsCounter, 0 mSdLazyCounter, 1859 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 1067 SdHoareTripleChecker+Invalid, 1915 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1859 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:19:55,041 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [286 Valid, 1067 Invalid, 1915 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1859 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:19:55,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4087 states. [2022-03-03 20:19:55,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4087 to 3618. [2022-03-03 20:19:55,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3618 states, 3617 states have (on average 3.351119712468897) internal successors, (12121), 3617 states have internal predecessors, (12121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:55,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3618 states to 3618 states and 12121 transitions. [2022-03-03 20:19:55,100 INFO L78 Accepts]: Start accepts. Automaton has 3618 states and 12121 transitions. Word has length 39 [2022-03-03 20:19:55,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:19:55,100 INFO L470 AbstractCegarLoop]: Abstraction has 3618 states and 12121 transitions. [2022-03-03 20:19:55,101 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:55,101 INFO L276 IsEmpty]: Start isEmpty. Operand 3618 states and 12121 transitions. [2022-03-03 20:19:55,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:19:55,107 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:19:55,107 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:19:55,107 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2022-03-03 20:19:55,107 INFO L402 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:19:55,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:19:55,107 INFO L85 PathProgramCache]: Analyzing trace with hash -1757269912, now seen corresponding path program 85 times [2022-03-03 20:19:55,107 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:19:55,107 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119333054] [2022-03-03 20:19:55,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:19:55,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:19:55,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:19:55,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:19:55,365 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:19:55,365 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119333054] [2022-03-03 20:19:55,365 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119333054] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:19:55,365 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:19:55,365 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:19:55,365 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739493506] [2022-03-03 20:19:55,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:19:55,365 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:19:55,365 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:19:55,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:19:55,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:19:55,366 INFO L87 Difference]: Start difference. First operand 3618 states and 12121 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:56,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:19:56,642 INFO L93 Difference]: Finished difference Result 4118 states and 13503 transitions. [2022-03-03 20:19:56,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-03-03 20:19:56,642 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:19:56,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:19:56,650 INFO L225 Difference]: With dead ends: 4118 [2022-03-03 20:19:56,650 INFO L226 Difference]: Without dead ends: 4066 [2022-03-03 20:19:56,650 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 673 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=273, Invalid=2697, Unknown=0, NotChecked=0, Total=2970 [2022-03-03 20:19:56,650 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 281 mSDsluCounter, 1271 mSDsCounter, 0 mSdLazyCounter, 1829 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 281 SdHoareTripleChecker+Valid, 1050 SdHoareTripleChecker+Invalid, 1880 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 1829 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:19:56,650 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [281 Valid, 1050 Invalid, 1880 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 1829 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:19:56,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4066 states. [2022-03-03 20:19:56,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4066 to 3610. [2022-03-03 20:19:56,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3610 states, 3609 states have (on average 3.353006372956498) internal successors, (12101), 3609 states have internal predecessors, (12101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:56,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3610 states to 3610 states and 12101 transitions. [2022-03-03 20:19:56,697 INFO L78 Accepts]: Start accepts. Automaton has 3610 states and 12101 transitions. Word has length 39 [2022-03-03 20:19:56,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:19:56,697 INFO L470 AbstractCegarLoop]: Abstraction has 3610 states and 12101 transitions. [2022-03-03 20:19:56,698 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:56,698 INFO L276 IsEmpty]: Start isEmpty. Operand 3610 states and 12101 transitions. [2022-03-03 20:19:56,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:19:56,702 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:19:56,703 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:19:56,703 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2022-03-03 20:19:56,703 INFO L402 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:19:56,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:19:56,703 INFO L85 PathProgramCache]: Analyzing trace with hash 941811960, now seen corresponding path program 86 times [2022-03-03 20:19:56,703 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:19:56,703 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69905468] [2022-03-03 20:19:56,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:19:56,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:19:56,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:19:56,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:19:56,942 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:19:56,942 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69905468] [2022-03-03 20:19:56,942 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69905468] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:19:56,942 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:19:56,942 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:19:56,942 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320312266] [2022-03-03 20:19:56,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:19:56,943 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:19:56,943 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:19:56,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:19:56,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:19:56,944 INFO L87 Difference]: Start difference. First operand 3610 states and 12101 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:57,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:19:57,900 INFO L93 Difference]: Finished difference Result 4095 states and 13426 transitions. [2022-03-03 20:19:57,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-03-03 20:19:57,900 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:19:57,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:19:57,908 INFO L225 Difference]: With dead ends: 4095 [2022-03-03 20:19:57,909 INFO L226 Difference]: Without dead ends: 4040 [2022-03-03 20:19:57,909 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 480 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=225, Invalid=2127, Unknown=0, NotChecked=0, Total=2352 [2022-03-03 20:19:57,909 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 244 mSDsluCounter, 1243 mSDsCounter, 0 mSdLazyCounter, 1685 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 1011 SdHoareTripleChecker+Invalid, 1734 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:19:57,909 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [244 Valid, 1011 Invalid, 1734 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1685 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:19:57,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4040 states. [2022-03-03 20:19:57,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4040 to 3612. [2022-03-03 20:19:57,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3612 states, 3611 states have (on average 3.3519800609249515) internal successors, (12104), 3611 states have internal predecessors, (12104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:57,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3612 states to 3612 states and 12104 transitions. [2022-03-03 20:19:57,964 INFO L78 Accepts]: Start accepts. Automaton has 3612 states and 12104 transitions. Word has length 39 [2022-03-03 20:19:57,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:19:57,965 INFO L470 AbstractCegarLoop]: Abstraction has 3612 states and 12104 transitions. [2022-03-03 20:19:57,965 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:57,965 INFO L276 IsEmpty]: Start isEmpty. Operand 3612 states and 12104 transitions. [2022-03-03 20:19:57,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:19:57,970 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:19:57,970 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:19:57,970 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2022-03-03 20:19:57,970 INFO L402 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:19:57,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:19:57,970 INFO L85 PathProgramCache]: Analyzing trace with hash 2114464182, now seen corresponding path program 87 times [2022-03-03 20:19:57,970 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:19:57,970 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631415784] [2022-03-03 20:19:57,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:19:57,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:19:57,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:19:58,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:19:58,155 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:19:58,155 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631415784] [2022-03-03 20:19:58,156 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631415784] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:19:58,156 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:19:58,156 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:19:58,156 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737121459] [2022-03-03 20:19:58,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:19:58,156 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:19:58,156 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:19:58,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:19:58,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:19:58,156 INFO L87 Difference]: Start difference. First operand 3612 states and 12104 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:58,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:19:58,928 INFO L93 Difference]: Finished difference Result 4030 states and 13274 transitions. [2022-03-03 20:19:58,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-03 20:19:58,929 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:19:58,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:19:58,937 INFO L225 Difference]: With dead ends: 4030 [2022-03-03 20:19:58,937 INFO L226 Difference]: Without dead ends: 3984 [2022-03-03 20:19:58,937 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 389 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=200, Invalid=1870, Unknown=0, NotChecked=0, Total=2070 [2022-03-03 20:19:58,938 INFO L933 BasicCegarLoop]: 96 mSDtfsCounter, 228 mSDsluCounter, 1243 mSDsCounter, 0 mSdLazyCounter, 1647 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 1009 SdHoareTripleChecker+Invalid, 1684 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1647 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 20:19:58,938 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [228 Valid, 1009 Invalid, 1684 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1647 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 20:19:58,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3984 states. [2022-03-03 20:19:59,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3984 to 3616. [2022-03-03 20:19:59,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3616 states, 3615 states have (on average 3.350484094052559) internal successors, (12112), 3615 states have internal predecessors, (12112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:59,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3616 states to 3616 states and 12112 transitions. [2022-03-03 20:19:59,016 INFO L78 Accepts]: Start accepts. Automaton has 3616 states and 12112 transitions. Word has length 39 [2022-03-03 20:19:59,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:19:59,017 INFO L470 AbstractCegarLoop]: Abstraction has 3616 states and 12112 transitions. [2022-03-03 20:19:59,017 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:19:59,017 INFO L276 IsEmpty]: Start isEmpty. Operand 3616 states and 12112 transitions. [2022-03-03 20:19:59,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:19:59,022 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:19:59,022 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:19:59,022 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2022-03-03 20:19:59,022 INFO L402 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:19:59,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:19:59,023 INFO L85 PathProgramCache]: Analyzing trace with hash 1866998020, now seen corresponding path program 88 times [2022-03-03 20:19:59,023 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:19:59,023 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538796228] [2022-03-03 20:19:59,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:19:59,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:19:59,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:19:59,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:19:59,243 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:19:59,243 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538796228] [2022-03-03 20:19:59,243 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538796228] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:19:59,243 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:19:59,243 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:19:59,243 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755979552] [2022-03-03 20:19:59,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:19:59,243 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:19:59,244 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:19:59,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:19:59,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:19:59,244 INFO L87 Difference]: Start difference. First operand 3616 states and 12112 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:00,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:20:00,276 INFO L93 Difference]: Finished difference Result 3990 states and 13185 transitions. [2022-03-03 20:20:00,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-03 20:20:00,276 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:20:00,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:20:00,284 INFO L225 Difference]: With dead ends: 3990 [2022-03-03 20:20:00,284 INFO L226 Difference]: Without dead ends: 3941 [2022-03-03 20:20:00,284 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 389 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=204, Invalid=1866, Unknown=0, NotChecked=0, Total=2070 [2022-03-03 20:20:00,285 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 227 mSDsluCounter, 1202 mSDsCounter, 0 mSdLazyCounter, 1590 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 1001 SdHoareTripleChecker+Invalid, 1630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:20:00,285 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [227 Valid, 1001 Invalid, 1630 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1590 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:20:00,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3941 states. [2022-03-03 20:20:00,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3941 to 3606. [2022-03-03 20:20:00,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3606 states, 3605 states have (on average 3.3539528432732317) internal successors, (12091), 3605 states have internal predecessors, (12091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:00,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3606 states to 3606 states and 12091 transitions. [2022-03-03 20:20:00,334 INFO L78 Accepts]: Start accepts. Automaton has 3606 states and 12091 transitions. Word has length 39 [2022-03-03 20:20:00,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:20:00,335 INFO L470 AbstractCegarLoop]: Abstraction has 3606 states and 12091 transitions. [2022-03-03 20:20:00,335 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:00,335 INFO L276 IsEmpty]: Start isEmpty. Operand 3606 states and 12091 transitions. [2022-03-03 20:20:00,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:20:00,340 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:20:00,340 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:20:00,340 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2022-03-03 20:20:00,340 INFO L402 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:20:00,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:20:00,340 INFO L85 PathProgramCache]: Analyzing trace with hash -889093754, now seen corresponding path program 89 times [2022-03-03 20:20:00,340 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:20:00,340 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172957504] [2022-03-03 20:20:00,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:20:00,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:20:00,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:20:00,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:20:00,594 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:20:00,594 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172957504] [2022-03-03 20:20:00,594 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172957504] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:20:00,594 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:20:00,594 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:20:00,594 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000539207] [2022-03-03 20:20:00,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:20:00,594 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:20:00,594 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:20:00,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:20:00,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:20:00,595 INFO L87 Difference]: Start difference. First operand 3606 states and 12091 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:01,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:20:01,575 INFO L93 Difference]: Finished difference Result 4037 states and 13379 transitions. [2022-03-03 20:20:01,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-03-03 20:20:01,576 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:20:01,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:20:01,584 INFO L225 Difference]: With dead ends: 4037 [2022-03-03 20:20:01,584 INFO L226 Difference]: Without dead ends: 3970 [2022-03-03 20:20:01,585 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 287 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=167, Invalid=1555, Unknown=0, NotChecked=0, Total=1722 [2022-03-03 20:20:01,585 INFO L933 BasicCegarLoop]: 106 mSDtfsCounter, 211 mSDsluCounter, 1200 mSDsCounter, 0 mSdLazyCounter, 1712 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 1022 SdHoareTripleChecker+Invalid, 1743 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1712 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:20:01,585 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [211 Valid, 1022 Invalid, 1743 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1712 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:20:01,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3970 states. [2022-03-03 20:20:01,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3970 to 3646. [2022-03-03 20:20:01,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3646 states, 3645 states have (on average 3.3467764060356653) internal successors, (12199), 3645 states have internal predecessors, (12199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:01,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3646 states to 3646 states and 12199 transitions. [2022-03-03 20:20:01,682 INFO L78 Accepts]: Start accepts. Automaton has 3646 states and 12199 transitions. Word has length 39 [2022-03-03 20:20:01,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:20:01,682 INFO L470 AbstractCegarLoop]: Abstraction has 3646 states and 12199 transitions. [2022-03-03 20:20:01,682 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:01,682 INFO L276 IsEmpty]: Start isEmpty. Operand 3646 states and 12199 transitions. [2022-03-03 20:20:01,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:20:01,687 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:20:01,687 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:20:01,688 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2022-03-03 20:20:01,688 INFO L402 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:20:01,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:20:01,688 INFO L85 PathProgramCache]: Analyzing trace with hash -1019688602, now seen corresponding path program 90 times [2022-03-03 20:20:01,688 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:20:01,688 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006199639] [2022-03-03 20:20:01,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:20:01,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:20:01,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:20:01,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:20:01,878 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:20:01,878 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006199639] [2022-03-03 20:20:01,878 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006199639] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:20:01,878 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:20:01,878 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:20:01,878 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248308161] [2022-03-03 20:20:01,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:20:01,879 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:20:01,879 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:20:01,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:20:01,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:20:01,879 INFO L87 Difference]: Start difference. First operand 3646 states and 12199 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:02,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:20:02,781 INFO L93 Difference]: Finished difference Result 4025 states and 13339 transitions. [2022-03-03 20:20:02,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-03-03 20:20:02,781 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:20:02,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:20:02,790 INFO L225 Difference]: With dead ends: 4025 [2022-03-03 20:20:02,790 INFO L226 Difference]: Without dead ends: 3962 [2022-03-03 20:20:02,790 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 286 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=169, Invalid=1553, Unknown=0, NotChecked=0, Total=1722 [2022-03-03 20:20:02,791 INFO L933 BasicCegarLoop]: 108 mSDtfsCounter, 210 mSDsluCounter, 1220 mSDsCounter, 0 mSdLazyCounter, 1722 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 1045 SdHoareTripleChecker+Invalid, 1756 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1722 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:20:02,791 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [210 Valid, 1045 Invalid, 1756 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1722 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:20:02,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3962 states. [2022-03-03 20:20:02,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3962 to 3638. [2022-03-03 20:20:02,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3638 states, 3637 states have (on average 3.3475391806433876) internal successors, (12175), 3637 states have internal predecessors, (12175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:02,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3638 states to 3638 states and 12175 transitions. [2022-03-03 20:20:02,850 INFO L78 Accepts]: Start accepts. Automaton has 3638 states and 12175 transitions. Word has length 39 [2022-03-03 20:20:02,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:20:02,851 INFO L470 AbstractCegarLoop]: Abstraction has 3638 states and 12175 transitions. [2022-03-03 20:20:02,851 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:02,851 INFO L276 IsEmpty]: Start isEmpty. Operand 3638 states and 12175 transitions. [2022-03-03 20:20:02,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:20:02,856 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:20:02,856 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:20:02,856 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2022-03-03 20:20:02,857 INFO L402 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:20:02,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:20:02,857 INFO L85 PathProgramCache]: Analyzing trace with hash -1549589050, now seen corresponding path program 91 times [2022-03-03 20:20:02,857 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:20:02,857 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654671598] [2022-03-03 20:20:02,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:20:02,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:20:02,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:20:03,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:20:03,076 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:20:03,076 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654671598] [2022-03-03 20:20:03,076 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654671598] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:20:03,076 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:20:03,077 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:20:03,077 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490974776] [2022-03-03 20:20:03,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:20:03,077 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:20:03,077 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:20:03,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:20:03,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:20:03,077 INFO L87 Difference]: Start difference. First operand 3638 states and 12175 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:03,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:20:03,839 INFO L93 Difference]: Finished difference Result 4037 states and 13367 transitions. [2022-03-03 20:20:03,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-03-03 20:20:03,839 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:20:03,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:20:03,847 INFO L225 Difference]: With dead ends: 4037 [2022-03-03 20:20:03,847 INFO L226 Difference]: Without dead ends: 3914 [2022-03-03 20:20:03,848 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 285 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=165, Invalid=1557, Unknown=0, NotChecked=0, Total=1722 [2022-03-03 20:20:03,848 INFO L933 BasicCegarLoop]: 113 mSDtfsCounter, 211 mSDsluCounter, 1283 mSDsCounter, 0 mSdLazyCounter, 1744 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 1114 SdHoareTripleChecker+Invalid, 1774 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1744 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 20:20:03,848 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [211 Valid, 1114 Invalid, 1774 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1744 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 20:20:03,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3914 states. [2022-03-03 20:20:03,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3914 to 3606. [2022-03-03 20:20:03,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3606 states, 3605 states have (on average 3.349514563106796) internal successors, (12075), 3605 states have internal predecessors, (12075), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:03,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3606 states to 3606 states and 12075 transitions. [2022-03-03 20:20:03,902 INFO L78 Accepts]: Start accepts. Automaton has 3606 states and 12075 transitions. Word has length 39 [2022-03-03 20:20:03,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:20:03,902 INFO L470 AbstractCegarLoop]: Abstraction has 3606 states and 12075 transitions. [2022-03-03 20:20:03,902 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:03,902 INFO L276 IsEmpty]: Start isEmpty. Operand 3606 states and 12075 transitions. [2022-03-03 20:20:03,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:20:03,907 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:20:03,907 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:20:03,907 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2022-03-03 20:20:03,907 INFO L402 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:20:03,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:20:03,907 INFO L85 PathProgramCache]: Analyzing trace with hash 2026967076, now seen corresponding path program 92 times [2022-03-03 20:20:03,908 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:20:03,908 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923514025] [2022-03-03 20:20:03,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:20:03,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:20:03,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:20:04,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:20:04,095 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:20:04,095 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923514025] [2022-03-03 20:20:04,095 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923514025] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:20:04,095 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:20:04,095 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:20:04,095 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131414008] [2022-03-03 20:20:04,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:20:04,096 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:20:04,096 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:20:04,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:20:04,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:20:04,096 INFO L87 Difference]: Start difference. First operand 3606 states and 12075 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:05,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:20:05,370 INFO L93 Difference]: Finished difference Result 5612 states and 19007 transitions. [2022-03-03 20:20:05,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-03-03 20:20:05,370 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:20:05,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:20:05,382 INFO L225 Difference]: With dead ends: 5612 [2022-03-03 20:20:05,383 INFO L226 Difference]: Without dead ends: 5569 [2022-03-03 20:20:05,383 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 705 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=279, Invalid=2801, Unknown=0, NotChecked=0, Total=3080 [2022-03-03 20:20:05,383 INFO L933 BasicCegarLoop]: 162 mSDtfsCounter, 387 mSDsluCounter, 1897 mSDsCounter, 0 mSdLazyCounter, 2479 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 387 SdHoareTripleChecker+Valid, 1741 SdHoareTripleChecker+Invalid, 2540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 2479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-03 20:20:05,394 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [387 Valid, 1741 Invalid, 2540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 2479 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-03 20:20:05,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5569 states. [2022-03-03 20:20:05,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5569 to 3620. [2022-03-03 20:20:05,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3620 states, 3619 states have (on average 3.3478861563967945) internal successors, (12116), 3619 states have internal predecessors, (12116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:05,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3620 states to 3620 states and 12116 transitions. [2022-03-03 20:20:05,459 INFO L78 Accepts]: Start accepts. Automaton has 3620 states and 12116 transitions. Word has length 39 [2022-03-03 20:20:05,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:20:05,460 INFO L470 AbstractCegarLoop]: Abstraction has 3620 states and 12116 transitions. [2022-03-03 20:20:05,460 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:05,460 INFO L276 IsEmpty]: Start isEmpty. Operand 3620 states and 12116 transitions. [2022-03-03 20:20:05,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:20:05,465 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:20:05,465 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:20:05,465 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2022-03-03 20:20:05,465 INFO L402 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:20:05,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:20:05,465 INFO L85 PathProgramCache]: Analyzing trace with hash 246368774, now seen corresponding path program 93 times [2022-03-03 20:20:05,465 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:20:05,466 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453136225] [2022-03-03 20:20:05,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:20:05,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:20:05,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:20:05,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:20:05,675 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:20:05,675 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453136225] [2022-03-03 20:20:05,675 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453136225] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:20:05,675 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:20:05,675 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:20:05,675 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602802544] [2022-03-03 20:20:05,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:20:05,675 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:20:05,675 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:20:05,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:20:05,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:20:05,676 INFO L87 Difference]: Start difference. First operand 3620 states and 12116 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:07,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:20:07,247 INFO L93 Difference]: Finished difference Result 6473 states and 21937 transitions. [2022-03-03 20:20:07,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-03-03 20:20:07,248 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:20:07,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:20:07,261 INFO L225 Difference]: With dead ends: 6473 [2022-03-03 20:20:07,262 INFO L226 Difference]: Without dead ends: 6421 [2022-03-03 20:20:07,262 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 947 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=321, Invalid=3461, Unknown=0, NotChecked=0, Total=3782 [2022-03-03 20:20:07,262 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 429 mSDsluCounter, 2217 mSDsCounter, 0 mSdLazyCounter, 2819 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 429 SdHoareTripleChecker+Valid, 2097 SdHoareTripleChecker+Invalid, 2887 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 2819 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 20:20:07,262 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [429 Valid, 2097 Invalid, 2887 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 2819 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 20:20:07,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6421 states. [2022-03-03 20:20:07,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6421 to 3606. [2022-03-03 20:20:07,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3606 states, 3605 states have (on average 3.349514563106796) internal successors, (12075), 3605 states have internal predecessors, (12075), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:07,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3606 states to 3606 states and 12075 transitions. [2022-03-03 20:20:07,330 INFO L78 Accepts]: Start accepts. Automaton has 3606 states and 12075 transitions. Word has length 39 [2022-03-03 20:20:07,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:20:07,330 INFO L470 AbstractCegarLoop]: Abstraction has 3606 states and 12075 transitions. [2022-03-03 20:20:07,330 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:07,330 INFO L276 IsEmpty]: Start isEmpty. Operand 3606 states and 12075 transitions. [2022-03-03 20:20:07,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:20:07,336 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:20:07,336 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:20:07,336 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2022-03-03 20:20:07,336 INFO L402 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:20:07,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:20:07,341 INFO L85 PathProgramCache]: Analyzing trace with hash -1349516650, now seen corresponding path program 94 times [2022-03-03 20:20:07,341 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:20:07,341 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536045448] [2022-03-03 20:20:07,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:20:07,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:20:07,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:20:07,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:20:07,578 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:20:07,578 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536045448] [2022-03-03 20:20:07,578 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536045448] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:20:07,578 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:20:07,578 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:20:07,578 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256249902] [2022-03-03 20:20:07,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:20:07,578 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:20:07,578 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:20:07,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:20:07,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:20:07,579 INFO L87 Difference]: Start difference. First operand 3606 states and 12075 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:08,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:20:08,847 INFO L93 Difference]: Finished difference Result 5417 states and 18181 transitions. [2022-03-03 20:20:08,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-03-03 20:20:08,848 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:20:08,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:20:08,859 INFO L225 Difference]: With dead ends: 5417 [2022-03-03 20:20:08,859 INFO L226 Difference]: Without dead ends: 5362 [2022-03-03 20:20:08,859 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 444 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=218, Invalid=2038, Unknown=0, NotChecked=0, Total=2256 [2022-03-03 20:20:08,860 INFO L933 BasicCegarLoop]: 155 mSDtfsCounter, 329 mSDsluCounter, 1796 mSDsCounter, 0 mSdLazyCounter, 2221 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 329 SdHoareTripleChecker+Valid, 1635 SdHoareTripleChecker+Invalid, 2261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 2221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 20:20:08,860 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [329 Valid, 1635 Invalid, 2261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 2221 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 20:20:08,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5362 states. [2022-03-03 20:20:08,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5362 to 3614. [2022-03-03 20:20:08,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3614 states, 3613 states have (on average 3.3487406587323556) internal successors, (12099), 3613 states have internal predecessors, (12099), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:08,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3614 states to 3614 states and 12099 transitions. [2022-03-03 20:20:08,921 INFO L78 Accepts]: Start accepts. Automaton has 3614 states and 12099 transitions. Word has length 39 [2022-03-03 20:20:08,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:20:08,921 INFO L470 AbstractCegarLoop]: Abstraction has 3614 states and 12099 transitions. [2022-03-03 20:20:08,921 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:08,921 INFO L276 IsEmpty]: Start isEmpty. Operand 3614 states and 12099 transitions. [2022-03-03 20:20:08,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:20:08,926 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:20:08,926 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:20:08,927 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2022-03-03 20:20:08,927 INFO L402 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:20:08,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:20:08,927 INFO L85 PathProgramCache]: Analyzing trace with hash -176864428, now seen corresponding path program 95 times [2022-03-03 20:20:08,927 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:20:08,927 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006618826] [2022-03-03 20:20:08,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:20:08,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:20:08,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:20:09,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:20:09,159 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:20:09,159 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006618826] [2022-03-03 20:20:09,159 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006618826] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:20:09,159 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:20:09,159 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:20:09,159 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38577747] [2022-03-03 20:20:09,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:20:09,160 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:20:09,160 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:20:09,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:20:09,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:20:09,160 INFO L87 Difference]: Start difference. First operand 3614 states and 12099 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:10,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:20:10,666 INFO L93 Difference]: Finished difference Result 6278 states and 21115 transitions. [2022-03-03 20:20:10,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-03-03 20:20:10,666 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:20:10,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:20:10,680 INFO L225 Difference]: With dead ends: 6278 [2022-03-03 20:20:10,680 INFO L226 Difference]: Without dead ends: 6218 [2022-03-03 20:20:10,681 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 606 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=249, Invalid=2507, Unknown=0, NotChecked=0, Total=2756 [2022-03-03 20:20:10,681 INFO L933 BasicCegarLoop]: 189 mSDtfsCounter, 355 mSDsluCounter, 2134 mSDsCounter, 0 mSdLazyCounter, 2555 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 355 SdHoareTripleChecker+Valid, 2011 SdHoareTripleChecker+Invalid, 2598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 2555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-03 20:20:10,681 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [355 Valid, 2011 Invalid, 2598 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 2555 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-03 20:20:10,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6218 states. [2022-03-03 20:20:10,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6218 to 3612. [2022-03-03 20:20:10,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3612 states, 3611 states have (on average 3.3492107449459985) internal successors, (12094), 3611 states have internal predecessors, (12094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:10,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3612 states to 3612 states and 12094 transitions. [2022-03-03 20:20:10,751 INFO L78 Accepts]: Start accepts. Automaton has 3612 states and 12094 transitions. Word has length 39 [2022-03-03 20:20:10,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:20:10,751 INFO L470 AbstractCegarLoop]: Abstraction has 3612 states and 12094 transitions. [2022-03-03 20:20:10,751 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:10,751 INFO L276 IsEmpty]: Start isEmpty. Operand 3612 states and 12094 transitions. [2022-03-03 20:20:10,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:20:10,757 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:20:10,757 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:20:10,757 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2022-03-03 20:20:10,757 INFO L402 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:20:10,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:20:10,757 INFO L85 PathProgramCache]: Analyzing trace with hash -2054268030, now seen corresponding path program 96 times [2022-03-03 20:20:10,757 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:20:10,757 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791180827] [2022-03-03 20:20:10,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:20:10,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:20:10,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:20:10,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:20:10,975 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:20:10,975 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791180827] [2022-03-03 20:20:10,975 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791180827] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:20:10,975 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:20:10,975 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:20:10,975 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893629347] [2022-03-03 20:20:10,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:20:10,975 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:20:10,975 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:20:10,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:20:10,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:20:10,976 INFO L87 Difference]: Start difference. First operand 3612 states and 12094 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:12,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:20:12,061 INFO L93 Difference]: Finished difference Result 5378 states and 18115 transitions. [2022-03-03 20:20:12,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-03 20:20:12,065 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:20:12,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:20:12,077 INFO L225 Difference]: With dead ends: 5378 [2022-03-03 20:20:12,077 INFO L226 Difference]: Without dead ends: 5287 [2022-03-03 20:20:12,077 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 417 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=203, Invalid=1959, Unknown=0, NotChecked=0, Total=2162 [2022-03-03 20:20:12,077 INFO L933 BasicCegarLoop]: 162 mSDtfsCounter, 317 mSDsluCounter, 1832 mSDsCounter, 0 mSdLazyCounter, 2195 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 317 SdHoareTripleChecker+Valid, 1709 SdHoareTripleChecker+Invalid, 2231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 2195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-03 20:20:12,077 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [317 Valid, 1709 Invalid, 2231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 2195 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-03 20:20:12,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5287 states. [2022-03-03 20:20:12,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5287 to 3612. [2022-03-03 20:20:12,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3612 states, 3611 states have (on average 3.3475491553586263) internal successors, (12088), 3611 states have internal predecessors, (12088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:12,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3612 states to 3612 states and 12088 transitions. [2022-03-03 20:20:12,142 INFO L78 Accepts]: Start accepts. Automaton has 3612 states and 12088 transitions. Word has length 39 [2022-03-03 20:20:12,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:20:12,142 INFO L470 AbstractCegarLoop]: Abstraction has 3612 states and 12088 transitions. [2022-03-03 20:20:12,142 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:12,142 INFO L276 IsEmpty]: Start isEmpty. Operand 3612 states and 12088 transitions. [2022-03-03 20:20:12,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:20:12,148 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:20:12,148 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:20:12,148 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2022-03-03 20:20:12,148 INFO L402 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:20:12,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:20:12,148 INFO L85 PathProgramCache]: Analyzing trace with hash 738217060, now seen corresponding path program 97 times [2022-03-03 20:20:12,148 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:20:12,148 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057784648] [2022-03-03 20:20:12,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:20:12,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:20:12,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:20:12,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:20:12,358 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:20:12,358 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057784648] [2022-03-03 20:20:12,358 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057784648] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:20:12,358 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:20:12,358 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:20:12,358 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080462528] [2022-03-03 20:20:12,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:20:12,359 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:20:12,359 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:20:12,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:20:12,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:20:12,359 INFO L87 Difference]: Start difference. First operand 3612 states and 12088 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:13,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:20:13,412 INFO L93 Difference]: Finished difference Result 6191 states and 20917 transitions. [2022-03-03 20:20:13,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-03 20:20:13,413 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:20:13,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:20:13,426 INFO L225 Difference]: With dead ends: 6191 [2022-03-03 20:20:13,426 INFO L226 Difference]: Without dead ends: 6075 [2022-03-03 20:20:13,426 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 534 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=228, Invalid=2322, Unknown=0, NotChecked=0, Total=2550 [2022-03-03 20:20:13,427 INFO L933 BasicCegarLoop]: 197 mSDtfsCounter, 325 mSDsluCounter, 2207 mSDsCounter, 0 mSdLazyCounter, 2561 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 325 SdHoareTripleChecker+Valid, 2095 SdHoareTripleChecker+Invalid, 2598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 2561 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:20:13,427 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [325 Valid, 2095 Invalid, 2598 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 2561 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:20:13,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6075 states. [2022-03-03 20:20:13,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6075 to 3590. [2022-03-03 20:20:13,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3590 states, 3589 states have (on average 3.353859013652828) internal successors, (12037), 3589 states have internal predecessors, (12037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:13,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3590 states to 3590 states and 12037 transitions. [2022-03-03 20:20:13,498 INFO L78 Accepts]: Start accepts. Automaton has 3590 states and 12037 transitions. Word has length 39 [2022-03-03 20:20:13,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:20:13,498 INFO L470 AbstractCegarLoop]: Abstraction has 3590 states and 12037 transitions. [2022-03-03 20:20:13,499 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:13,499 INFO L276 IsEmpty]: Start isEmpty. Operand 3590 states and 12037 transitions. [2022-03-03 20:20:13,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:20:13,505 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:20:13,505 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:20:13,505 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2022-03-03 20:20:13,505 INFO L402 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:20:13,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:20:13,505 INFO L85 PathProgramCache]: Analyzing trace with hash 1367450324, now seen corresponding path program 98 times [2022-03-03 20:20:13,505 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:20:13,505 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869865180] [2022-03-03 20:20:13,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:20:13,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:20:13,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:20:13,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:20:13,728 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:20:13,728 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869865180] [2022-03-03 20:20:13,728 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869865180] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:20:13,729 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:20:13,729 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:20:13,729 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445212543] [2022-03-03 20:20:13,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:20:13,729 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:20:13,729 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:20:13,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:20:13,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:20:13,729 INFO L87 Difference]: Start difference. First operand 3590 states and 12037 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:14,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:20:14,471 INFO L93 Difference]: Finished difference Result 3901 states and 12905 transitions. [2022-03-03 20:20:14,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 20:20:14,472 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:20:14,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:20:14,480 INFO L225 Difference]: With dead ends: 3901 [2022-03-03 20:20:14,480 INFO L226 Difference]: Without dead ends: 3834 [2022-03-03 20:20:14,480 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=155, Invalid=1405, Unknown=0, NotChecked=0, Total=1560 [2022-03-03 20:20:14,480 INFO L933 BasicCegarLoop]: 86 mSDtfsCounter, 177 mSDsluCounter, 1042 mSDsCounter, 0 mSdLazyCounter, 1393 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 844 SdHoareTripleChecker+Invalid, 1417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 20:20:14,481 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [177 Valid, 844 Invalid, 1417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1393 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 20:20:14,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3834 states. [2022-03-03 20:20:14,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3834 to 3646. [2022-03-03 20:20:14,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3646 states, 3645 states have (on average 3.342935528120713) internal successors, (12185), 3645 states have internal predecessors, (12185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:14,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3646 states to 3646 states and 12185 transitions. [2022-03-03 20:20:14,535 INFO L78 Accepts]: Start accepts. Automaton has 3646 states and 12185 transitions. Word has length 39 [2022-03-03 20:20:14,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:20:14,536 INFO L470 AbstractCegarLoop]: Abstraction has 3646 states and 12185 transitions. [2022-03-03 20:20:14,536 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:14,536 INFO L276 IsEmpty]: Start isEmpty. Operand 3646 states and 12185 transitions. [2022-03-03 20:20:14,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:20:14,541 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:20:14,541 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:20:14,541 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2022-03-03 20:20:14,541 INFO L402 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:20:14,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:20:14,541 INFO L85 PathProgramCache]: Analyzing trace with hash 1195307106, now seen corresponding path program 99 times [2022-03-03 20:20:14,541 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:20:14,542 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105886428] [2022-03-03 20:20:14,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:20:14,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:20:14,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:20:14,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:20:14,728 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:20:14,728 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105886428] [2022-03-03 20:20:14,728 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105886428] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:20:14,728 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:20:14,728 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:20:14,728 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795400997] [2022-03-03 20:20:14,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:20:14,728 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:20:14,728 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:20:14,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:20:14,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:20:14,729 INFO L87 Difference]: Start difference. First operand 3646 states and 12185 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:15,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:20:15,509 INFO L93 Difference]: Finished difference Result 3889 states and 12865 transitions. [2022-03-03 20:20:15,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-03-03 20:20:15,509 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:20:15,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:20:15,517 INFO L225 Difference]: With dead ends: 3889 [2022-03-03 20:20:15,517 INFO L226 Difference]: Without dead ends: 3826 [2022-03-03 20:20:15,517 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=154, Invalid=1406, Unknown=0, NotChecked=0, Total=1560 [2022-03-03 20:20:15,518 INFO L933 BasicCegarLoop]: 88 mSDtfsCounter, 174 mSDsluCounter, 1064 mSDsCounter, 0 mSdLazyCounter, 1402 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 869 SdHoareTripleChecker+Invalid, 1428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:20:15,518 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [174 Valid, 869 Invalid, 1428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1402 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:20:15,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3826 states. [2022-03-03 20:20:15,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3826 to 3638. [2022-03-03 20:20:15,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3638 states, 3637 states have (on average 3.343689854275502) internal successors, (12161), 3637 states have internal predecessors, (12161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:15,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3638 states to 3638 states and 12161 transitions. [2022-03-03 20:20:15,571 INFO L78 Accepts]: Start accepts. Automaton has 3638 states and 12161 transitions. Word has length 39 [2022-03-03 20:20:15,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:20:15,571 INFO L470 AbstractCegarLoop]: Abstraction has 3638 states and 12161 transitions. [2022-03-03 20:20:15,571 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:15,571 INFO L276 IsEmpty]: Start isEmpty. Operand 3638 states and 12161 transitions. [2022-03-03 20:20:15,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:20:15,577 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:20:15,577 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:20:15,577 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2022-03-03 20:20:15,577 INFO L402 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:20:15,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:20:15,577 INFO L85 PathProgramCache]: Analyzing trace with hash -607527050, now seen corresponding path program 100 times [2022-03-03 20:20:15,577 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:20:15,577 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098358628] [2022-03-03 20:20:15,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:20:15,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:20:15,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:20:15,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:20:15,767 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:20:15,767 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098358628] [2022-03-03 20:20:15,767 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098358628] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:20:15,767 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:20:15,767 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:20:15,767 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040406893] [2022-03-03 20:20:15,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:20:15,767 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:20:15,767 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:20:15,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:20:15,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:20:15,768 INFO L87 Difference]: Start difference. First operand 3638 states and 12161 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:16,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:20:16,570 INFO L93 Difference]: Finished difference Result 3889 states and 12857 transitions. [2022-03-03 20:20:16,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-03 20:20:16,570 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:20:16,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:20:16,578 INFO L225 Difference]: With dead ends: 3889 [2022-03-03 20:20:16,578 INFO L226 Difference]: Without dead ends: 3754 [2022-03-03 20:20:16,578 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=152, Invalid=1408, Unknown=0, NotChecked=0, Total=1560 [2022-03-03 20:20:16,578 INFO L933 BasicCegarLoop]: 94 mSDtfsCounter, 168 mSDsluCounter, 1125 mSDsCounter, 0 mSdLazyCounter, 1418 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 937 SdHoareTripleChecker+Invalid, 1440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:20:16,578 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [168 Valid, 937 Invalid, 1440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1418 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:20:16,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3754 states. [2022-03-03 20:20:16,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3754 to 3594. [2022-03-03 20:20:16,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3594 states, 3593 states have (on average 3.3523517951572503) internal successors, (12045), 3593 states have internal predecessors, (12045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:16,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3594 states to 3594 states and 12045 transitions. [2022-03-03 20:20:16,636 INFO L78 Accepts]: Start accepts. Automaton has 3594 states and 12045 transitions. Word has length 39 [2022-03-03 20:20:16,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:20:16,636 INFO L470 AbstractCegarLoop]: Abstraction has 3594 states and 12045 transitions. [2022-03-03 20:20:16,636 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:16,636 INFO L276 IsEmpty]: Start isEmpty. Operand 3594 states and 12045 transitions. [2022-03-03 20:20:16,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:20:16,642 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:20:16,642 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:20:16,642 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2022-03-03 20:20:16,642 INFO L402 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:20:16,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:20:16,643 INFO L85 PathProgramCache]: Analyzing trace with hash -28107814, now seen corresponding path program 101 times [2022-03-03 20:20:16,643 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:20:16,643 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645349849] [2022-03-03 20:20:16,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:20:16,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:20:16,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:20:16,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:20:16,882 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:20:16,882 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645349849] [2022-03-03 20:20:16,882 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645349849] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:20:16,882 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:20:16,882 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:20:16,882 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646964860] [2022-03-03 20:20:16,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:20:16,883 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:20:16,883 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:20:16,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:20:16,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:20:16,883 INFO L87 Difference]: Start difference. First operand 3594 states and 12045 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:17,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:20:17,677 INFO L93 Difference]: Finished difference Result 3825 states and 12693 transitions. [2022-03-03 20:20:17,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-03-03 20:20:17,677 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:20:17,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:20:17,685 INFO L225 Difference]: With dead ends: 3825 [2022-03-03 20:20:17,685 INFO L226 Difference]: Without dead ends: 3758 [2022-03-03 20:20:17,685 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 223 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=143, Invalid=1339, Unknown=0, NotChecked=0, Total=1482 [2022-03-03 20:20:17,685 INFO L933 BasicCegarLoop]: 86 mSDtfsCounter, 151 mSDsluCounter, 1027 mSDsCounter, 0 mSdLazyCounter, 1392 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 831 SdHoareTripleChecker+Invalid, 1412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:20:17,686 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 831 Invalid, 1412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1392 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:20:17,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3758 states. [2022-03-03 20:20:17,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3758 to 3650. [2022-03-03 20:20:17,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3650 states, 3649 states have (on average 3.341463414634146) internal successors, (12193), 3649 states have internal predecessors, (12193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:17,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3650 states to 3650 states and 12193 transitions. [2022-03-03 20:20:17,750 INFO L78 Accepts]: Start accepts. Automaton has 3650 states and 12193 transitions. Word has length 39 [2022-03-03 20:20:17,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:20:17,750 INFO L470 AbstractCegarLoop]: Abstraction has 3650 states and 12193 transitions. [2022-03-03 20:20:17,750 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:17,750 INFO L276 IsEmpty]: Start isEmpty. Operand 3650 states and 12193 transitions. [2022-03-03 20:20:17,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:20:17,755 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:20:17,755 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:20:17,755 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2022-03-03 20:20:17,755 INFO L402 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:20:17,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:20:17,756 INFO L85 PathProgramCache]: Analyzing trace with hash -200251032, now seen corresponding path program 102 times [2022-03-03 20:20:17,756 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:20:17,756 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634480277] [2022-03-03 20:20:17,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:20:17,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:20:17,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:20:18,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:20:18,003 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:20:18,003 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634480277] [2022-03-03 20:20:18,004 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634480277] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:20:18,004 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:20:18,004 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:20:18,004 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167420262] [2022-03-03 20:20:18,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:20:18,004 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:20:18,004 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:20:18,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:20:18,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:20:18,004 INFO L87 Difference]: Start difference. First operand 3650 states and 12193 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:18,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:20:18,755 INFO L93 Difference]: Finished difference Result 3813 states and 12653 transitions. [2022-03-03 20:20:18,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-03 20:20:18,755 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:20:18,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:20:18,763 INFO L225 Difference]: With dead ends: 3813 [2022-03-03 20:20:18,763 INFO L226 Difference]: Without dead ends: 3750 [2022-03-03 20:20:18,763 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 223 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=143, Invalid=1339, Unknown=0, NotChecked=0, Total=1482 [2022-03-03 20:20:18,763 INFO L933 BasicCegarLoop]: 86 mSDtfsCounter, 150 mSDsluCounter, 1024 mSDsCounter, 0 mSdLazyCounter, 1377 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 841 SdHoareTripleChecker+Invalid, 1400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 20:20:18,764 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 841 Invalid, 1400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1377 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 20:20:18,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3750 states. [2022-03-03 20:20:18,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3750 to 3642. [2022-03-03 20:20:18,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3642 states, 3641 states have (on average 3.3422136775611095) internal successors, (12169), 3641 states have internal predecessors, (12169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:18,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3642 states to 3642 states and 12169 transitions. [2022-03-03 20:20:18,817 INFO L78 Accepts]: Start accepts. Automaton has 3642 states and 12169 transitions. Word has length 39 [2022-03-03 20:20:18,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:20:18,817 INFO L470 AbstractCegarLoop]: Abstraction has 3642 states and 12169 transitions. [2022-03-03 20:20:18,817 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:18,817 INFO L276 IsEmpty]: Start isEmpty. Operand 3642 states and 12169 transitions. [2022-03-03 20:20:18,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:20:18,823 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:20:18,823 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:20:18,823 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2022-03-03 20:20:18,823 INFO L402 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:20:18,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:20:18,823 INFO L85 PathProgramCache]: Analyzing trace with hash -2003085188, now seen corresponding path program 103 times [2022-03-03 20:20:18,823 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:20:18,823 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109877560] [2022-03-03 20:20:18,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:20:18,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:20:18,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:20:19,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:20:19,073 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:20:19,073 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109877560] [2022-03-03 20:20:19,074 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109877560] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:20:19,074 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:20:19,074 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:20:19,074 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333709480] [2022-03-03 20:20:19,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:20:19,074 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:20:19,074 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:20:19,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:20:19,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:20:19,074 INFO L87 Difference]: Start difference. First operand 3642 states and 12169 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:19,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:20:19,849 INFO L93 Difference]: Finished difference Result 3813 states and 12645 transitions. [2022-03-03 20:20:19,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-03-03 20:20:19,850 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:20:19,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:20:19,857 INFO L225 Difference]: With dead ends: 3813 [2022-03-03 20:20:19,857 INFO L226 Difference]: Without dead ends: 3662 [2022-03-03 20:20:19,857 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 221 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=142, Invalid=1340, Unknown=0, NotChecked=0, Total=1482 [2022-03-03 20:20:19,857 INFO L933 BasicCegarLoop]: 91 mSDtfsCounter, 145 mSDsluCounter, 1086 mSDsCounter, 0 mSdLazyCounter, 1381 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 909 SdHoareTripleChecker+Invalid, 1400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 20:20:19,857 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 909 Invalid, 1400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1381 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 20:20:19,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3662 states. [2022-03-03 20:20:19,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3662 to 3582. [2022-03-03 20:20:19,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3582 states, 3581 states have (on average 3.3557665456576373) internal successors, (12017), 3581 states have internal predecessors, (12017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:19,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3582 states to 3582 states and 12017 transitions. [2022-03-03 20:20:19,906 INFO L78 Accepts]: Start accepts. Automaton has 3582 states and 12017 transitions. Word has length 39 [2022-03-03 20:20:19,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:20:19,906 INFO L470 AbstractCegarLoop]: Abstraction has 3582 states and 12017 transitions. [2022-03-03 20:20:19,906 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:19,906 INFO L276 IsEmpty]: Start isEmpty. Operand 3582 states and 12017 transitions. [2022-03-03 20:20:19,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:20:19,911 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:20:19,911 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:20:19,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2022-03-03 20:20:19,911 INFO L402 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:20:19,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:20:19,911 INFO L85 PathProgramCache]: Analyzing trace with hash 1826084602, now seen corresponding path program 104 times [2022-03-03 20:20:19,911 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:20:19,912 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693824825] [2022-03-03 20:20:19,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:20:19,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:20:19,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:20:20,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:20:20,095 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:20:20,095 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693824825] [2022-03-03 20:20:20,095 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693824825] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:20:20,095 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:20:20,095 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 20:20:20,095 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475640544] [2022-03-03 20:20:20,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:20:20,096 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-03-03 20:20:20,096 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:20:20,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-03-03 20:20:20,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2022-03-03 20:20:20,096 INFO L87 Difference]: Start difference. First operand 3582 states and 12017 transitions. Second operand has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:21,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:20:21,072 INFO L93 Difference]: Finished difference Result 4145 states and 13826 transitions. [2022-03-03 20:20:21,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-03 20:20:21,072 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:20:21,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:20:21,081 INFO L225 Difference]: With dead ends: 4145 [2022-03-03 20:20:21,081 INFO L226 Difference]: Without dead ends: 4066 [2022-03-03 20:20:21,081 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 417 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=209, Invalid=1771, Unknown=0, NotChecked=0, Total=1980 [2022-03-03 20:20:21,082 INFO L933 BasicCegarLoop]: 117 mSDtfsCounter, 229 mSDsluCounter, 1132 mSDsCounter, 0 mSdLazyCounter, 1573 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 973 SdHoareTripleChecker+Invalid, 1611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:20:21,082 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [229 Valid, 973 Invalid, 1611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1573 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:20:21,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4066 states. [2022-03-03 20:20:21,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4066 to 3658. [2022-03-03 20:20:21,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3658 states, 3657 states have (on average 3.3511074651353567) internal successors, (12255), 3657 states have internal predecessors, (12255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:21,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3658 states to 3658 states and 12255 transitions. [2022-03-03 20:20:21,140 INFO L78 Accepts]: Start accepts. Automaton has 3658 states and 12255 transitions. Word has length 39 [2022-03-03 20:20:21,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:20:21,140 INFO L470 AbstractCegarLoop]: Abstraction has 3658 states and 12255 transitions. [2022-03-03 20:20:21,140 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:21,140 INFO L276 IsEmpty]: Start isEmpty. Operand 3658 states and 12255 transitions. [2022-03-03 20:20:21,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:20:21,145 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:20:21,146 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:20:21,146 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2022-03-03 20:20:21,146 INFO L402 AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:20:21,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:20:21,146 INFO L85 PathProgramCache]: Analyzing trace with hash -2082945286, now seen corresponding path program 105 times [2022-03-03 20:20:21,146 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:20:21,146 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298753070] [2022-03-03 20:20:21,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:20:21,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:20:21,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:20:21,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:20:21,357 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:20:21,357 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298753070] [2022-03-03 20:20:21,357 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298753070] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:20:21,357 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:20:21,357 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 20:20:21,357 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036035920] [2022-03-03 20:20:21,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:20:21,357 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-03-03 20:20:21,358 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:20:21,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-03-03 20:20:21,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2022-03-03 20:20:21,358 INFO L87 Difference]: Start difference. First operand 3658 states and 12255 transitions. Second operand has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:22,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:20:22,692 INFO L93 Difference]: Finished difference Result 4191 states and 13951 transitions. [2022-03-03 20:20:22,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-03 20:20:22,692 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:20:22,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:20:22,701 INFO L225 Difference]: With dead ends: 4191 [2022-03-03 20:20:22,701 INFO L226 Difference]: Without dead ends: 4061 [2022-03-03 20:20:22,702 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 671 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=264, Invalid=2492, Unknown=0, NotChecked=0, Total=2756 [2022-03-03 20:20:22,702 INFO L933 BasicCegarLoop]: 134 mSDtfsCounter, 278 mSDsluCounter, 1294 mSDsCounter, 0 mSdLazyCounter, 1939 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 1106 SdHoareTripleChecker+Invalid, 1986 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 1939 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-03 20:20:22,702 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [278 Valid, 1106 Invalid, 1986 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 1939 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-03 20:20:22,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4061 states. [2022-03-03 20:20:22,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4061 to 3634. [2022-03-03 20:20:22,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3634 states, 3633 states have (on average 3.353426919900908) internal successors, (12183), 3633 states have internal predecessors, (12183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:22,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3634 states to 3634 states and 12183 transitions. [2022-03-03 20:20:22,762 INFO L78 Accepts]: Start accepts. Automaton has 3634 states and 12183 transitions. Word has length 39 [2022-03-03 20:20:22,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:20:22,762 INFO L470 AbstractCegarLoop]: Abstraction has 3634 states and 12183 transitions. [2022-03-03 20:20:22,762 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:22,762 INFO L276 IsEmpty]: Start isEmpty. Operand 3634 states and 12183 transitions. [2022-03-03 20:20:22,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:20:22,768 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:20:22,769 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:20:22,769 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2022-03-03 20:20:22,769 INFO L402 AbstractCegarLoop]: === Iteration 106 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:20:22,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:20:22,769 INFO L85 PathProgramCache]: Analyzing trace with hash -244993434, now seen corresponding path program 106 times [2022-03-03 20:20:22,769 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:20:22,769 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677031613] [2022-03-03 20:20:22,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:20:22,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:20:22,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:20:23,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:20:23,000 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:20:23,000 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677031613] [2022-03-03 20:20:23,000 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677031613] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:20:23,000 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:20:23,000 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:20:23,000 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620689262] [2022-03-03 20:20:23,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:20:23,001 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:20:23,001 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:20:23,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:20:23,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:20:23,001 INFO L87 Difference]: Start difference. First operand 3634 states and 12183 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:24,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:20:24,213 INFO L93 Difference]: Finished difference Result 4175 states and 13901 transitions. [2022-03-03 20:20:24,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-03 20:20:24,214 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:20:24,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:20:24,222 INFO L225 Difference]: With dead ends: 4175 [2022-03-03 20:20:24,222 INFO L226 Difference]: Without dead ends: 4108 [2022-03-03 20:20:24,223 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 603 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=261, Invalid=2391, Unknown=0, NotChecked=0, Total=2652 [2022-03-03 20:20:24,223 INFO L933 BasicCegarLoop]: 124 mSDtfsCounter, 251 mSDsluCounter, 1309 mSDsCounter, 0 mSdLazyCounter, 1752 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 1137 SdHoareTripleChecker+Invalid, 1803 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 1752 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:20:24,223 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [251 Valid, 1137 Invalid, 1803 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 1752 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:20:24,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4108 states. [2022-03-03 20:20:24,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4108 to 3650. [2022-03-03 20:20:24,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3650 states, 3649 states have (on average 3.3496848451630585) internal successors, (12223), 3649 states have internal predecessors, (12223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:24,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3650 states to 3650 states and 12223 transitions. [2022-03-03 20:20:24,277 INFO L78 Accepts]: Start accepts. Automaton has 3650 states and 12223 transitions. Word has length 39 [2022-03-03 20:20:24,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:20:24,277 INFO L470 AbstractCegarLoop]: Abstraction has 3650 states and 12223 transitions. [2022-03-03 20:20:24,277 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:24,277 INFO L276 IsEmpty]: Start isEmpty. Operand 3650 states and 12223 transitions. [2022-03-03 20:20:24,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:20:24,283 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:20:24,283 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:20:24,283 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2022-03-03 20:20:24,283 INFO L402 AbstractCegarLoop]: === Iteration 107 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:20:24,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:20:24,283 INFO L85 PathProgramCache]: Analyzing trace with hash -1964609404, now seen corresponding path program 107 times [2022-03-03 20:20:24,283 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:20:24,283 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098313268] [2022-03-03 20:20:24,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:20:24,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:20:24,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:20:24,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:20:24,505 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:20:24,505 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098313268] [2022-03-03 20:20:24,505 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098313268] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:20:24,505 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:20:24,505 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:20:24,505 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977826857] [2022-03-03 20:20:24,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:20:24,506 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:20:24,506 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:20:24,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:20:24,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:20:24,506 INFO L87 Difference]: Start difference. First operand 3650 states and 12223 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:26,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:20:26,160 INFO L93 Difference]: Finished difference Result 4312 states and 14258 transitions. [2022-03-03 20:20:26,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-03-03 20:20:26,161 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:20:26,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:20:26,169 INFO L225 Difference]: With dead ends: 4312 [2022-03-03 20:20:26,169 INFO L226 Difference]: Without dead ends: 4269 [2022-03-03 20:20:26,170 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1039 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=352, Invalid=3554, Unknown=0, NotChecked=0, Total=3906 [2022-03-03 20:20:26,170 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 334 mSDsluCounter, 1439 mSDsCounter, 0 mSdLazyCounter, 2052 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 1237 SdHoareTripleChecker+Invalid, 2118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 2052 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-03 20:20:26,170 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [334 Valid, 1237 Invalid, 2118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 2052 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-03 20:20:26,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4269 states. [2022-03-03 20:20:26,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4269 to 3656. [2022-03-03 20:20:26,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3656 states, 3655 states have (on average 3.3477428180574553) internal successors, (12236), 3655 states have internal predecessors, (12236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:26,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3656 states to 3656 states and 12236 transitions. [2022-03-03 20:20:26,220 INFO L78 Accepts]: Start accepts. Automaton has 3656 states and 12236 transitions. Word has length 39 [2022-03-03 20:20:26,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:20:26,220 INFO L470 AbstractCegarLoop]: Abstraction has 3656 states and 12236 transitions. [2022-03-03 20:20:26,220 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:26,220 INFO L276 IsEmpty]: Start isEmpty. Operand 3656 states and 12236 transitions. [2022-03-03 20:20:26,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:20:26,225 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:20:26,225 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:20:26,225 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2022-03-03 20:20:26,225 INFO L402 AbstractCegarLoop]: === Iteration 108 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:20:26,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:20:26,225 INFO L85 PathProgramCache]: Analyzing trace with hash 549759590, now seen corresponding path program 108 times [2022-03-03 20:20:26,225 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:20:26,225 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974046052] [2022-03-03 20:20:26,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:20:26,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:20:26,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:20:26,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:20:26,452 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:20:26,452 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974046052] [2022-03-03 20:20:26,453 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974046052] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:20:26,453 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:20:26,453 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:20:26,453 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230653710] [2022-03-03 20:20:26,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:20:26,453 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:20:26,453 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:20:26,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:20:26,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:20:26,453 INFO L87 Difference]: Start difference. First operand 3656 states and 12236 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:27,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:20:27,845 INFO L93 Difference]: Finished difference Result 4243 states and 14078 transitions. [2022-03-03 20:20:27,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-03-03 20:20:27,846 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:20:27,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:20:27,854 INFO L225 Difference]: With dead ends: 4243 [2022-03-03 20:20:27,854 INFO L226 Difference]: Without dead ends: 4179 [2022-03-03 20:20:27,855 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 908 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=325, Invalid=3215, Unknown=0, NotChecked=0, Total=3540 [2022-03-03 20:20:27,855 INFO L933 BasicCegarLoop]: 124 mSDtfsCounter, 320 mSDsluCounter, 1382 mSDsCounter, 0 mSdLazyCounter, 1973 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 320 SdHoareTripleChecker+Valid, 1185 SdHoareTripleChecker+Invalid, 2037 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 1973 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:20:27,855 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [320 Valid, 1185 Invalid, 2037 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 1973 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:20:27,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4179 states. [2022-03-03 20:20:27,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4179 to 3638. [2022-03-03 20:20:27,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3638 states, 3637 states have (on average 3.3524883145449547) internal successors, (12193), 3637 states have internal predecessors, (12193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:27,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3638 states to 3638 states and 12193 transitions. [2022-03-03 20:20:27,928 INFO L78 Accepts]: Start accepts. Automaton has 3638 states and 12193 transitions. Word has length 39 [2022-03-03 20:20:27,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:20:27,928 INFO L470 AbstractCegarLoop]: Abstraction has 3638 states and 12193 transitions. [2022-03-03 20:20:27,929 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:27,929 INFO L276 IsEmpty]: Start isEmpty. Operand 3638 states and 12193 transitions. [2022-03-03 20:20:27,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:20:27,934 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:20:27,934 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:20:27,934 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2022-03-03 20:20:27,934 INFO L402 AbstractCegarLoop]: === Iteration 109 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:20:27,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:20:27,934 INFO L85 PathProgramCache]: Analyzing trace with hash 1170193990, now seen corresponding path program 109 times [2022-03-03 20:20:27,934 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:20:27,934 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794715356] [2022-03-03 20:20:27,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:20:27,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:20:27,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:20:28,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:20:28,156 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:20:28,156 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794715356] [2022-03-03 20:20:28,156 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794715356] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:20:28,156 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:20:28,156 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:20:28,156 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902138160] [2022-03-03 20:20:28,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:20:28,156 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:20:28,156 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:20:28,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:20:28,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:20:28,157 INFO L87 Difference]: Start difference. First operand 3638 states and 12193 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:29,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:20:29,052 INFO L93 Difference]: Finished difference Result 4061 states and 13536 transitions. [2022-03-03 20:20:29,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-03 20:20:29,053 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:20:29,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:20:29,061 INFO L225 Difference]: With dead ends: 4061 [2022-03-03 20:20:29,061 INFO L226 Difference]: Without dead ends: 3994 [2022-03-03 20:20:29,061 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 417 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=213, Invalid=1857, Unknown=0, NotChecked=0, Total=2070 [2022-03-03 20:20:29,062 INFO L933 BasicCegarLoop]: 107 mSDtfsCounter, 217 mSDsluCounter, 1160 mSDsCounter, 0 mSdLazyCounter, 1605 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 962 SdHoareTripleChecker+Invalid, 1647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 1605 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:20:29,062 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [217 Valid, 962 Invalid, 1647 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 1605 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:20:29,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3994 states. [2022-03-03 20:20:29,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3994 to 3646. [2022-03-03 20:20:29,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3646 states, 3645 states have (on average 3.349519890260631) internal successors, (12209), 3645 states have internal predecessors, (12209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:29,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3646 states to 3646 states and 12209 transitions. [2022-03-03 20:20:29,118 INFO L78 Accepts]: Start accepts. Automaton has 3646 states and 12209 transitions. Word has length 39 [2022-03-03 20:20:29,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:20:29,118 INFO L470 AbstractCegarLoop]: Abstraction has 3646 states and 12209 transitions. [2022-03-03 20:20:29,118 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:29,118 INFO L276 IsEmpty]: Start isEmpty. Operand 3646 states and 12209 transitions. [2022-03-03 20:20:29,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:20:29,157 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:20:29,157 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:20:29,157 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2022-03-03 20:20:29,157 INFO L402 AbstractCegarLoop]: === Iteration 110 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:20:29,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:20:29,158 INFO L85 PathProgramCache]: Analyzing trace with hash 1039599142, now seen corresponding path program 110 times [2022-03-03 20:20:29,158 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:20:29,158 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65905054] [2022-03-03 20:20:29,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:20:29,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:20:29,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:20:29,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:20:29,382 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:20:29,382 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65905054] [2022-03-03 20:20:29,382 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65905054] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:20:29,382 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:20:29,382 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:20:29,382 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828854447] [2022-03-03 20:20:29,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:20:29,382 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:20:29,382 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:20:29,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:20:29,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:20:29,383 INFO L87 Difference]: Start difference. First operand 3646 states and 12209 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:30,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:20:30,453 INFO L93 Difference]: Finished difference Result 4049 states and 13496 transitions. [2022-03-03 20:20:30,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 20:20:30,453 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:20:30,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:20:30,461 INFO L225 Difference]: With dead ends: 4049 [2022-03-03 20:20:30,461 INFO L226 Difference]: Without dead ends: 3986 [2022-03-03 20:20:30,461 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 446 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=219, Invalid=1943, Unknown=0, NotChecked=0, Total=2162 [2022-03-03 20:20:30,462 INFO L933 BasicCegarLoop]: 107 mSDtfsCounter, 231 mSDsluCounter, 1159 mSDsCounter, 0 mSdLazyCounter, 1591 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 973 SdHoareTripleChecker+Invalid, 1634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 1591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:20:30,462 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [231 Valid, 973 Invalid, 1634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 1591 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:20:30,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3986 states. [2022-03-03 20:20:30,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3986 to 3638. [2022-03-03 20:20:30,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3638 states, 3637 states have (on average 3.351388507011273) internal successors, (12189), 3637 states have internal predecessors, (12189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:30,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3638 states to 3638 states and 12189 transitions. [2022-03-03 20:20:30,512 INFO L78 Accepts]: Start accepts. Automaton has 3638 states and 12189 transitions. Word has length 39 [2022-03-03 20:20:30,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:20:30,512 INFO L470 AbstractCegarLoop]: Abstraction has 3638 states and 12189 transitions. [2022-03-03 20:20:30,512 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:30,512 INFO L276 IsEmpty]: Start isEmpty. Operand 3638 states and 12189 transitions. [2022-03-03 20:20:30,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:20:30,517 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:20:30,517 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:20:30,517 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2022-03-03 20:20:30,517 INFO L402 AbstractCegarLoop]: === Iteration 111 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:20:30,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:20:30,517 INFO L85 PathProgramCache]: Analyzing trace with hash 903920550, now seen corresponding path program 111 times [2022-03-03 20:20:30,517 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:20:30,517 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129253848] [2022-03-03 20:20:30,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:20:30,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:20:30,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:20:30,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:20:30,670 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:20:30,671 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129253848] [2022-03-03 20:20:30,671 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129253848] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:20:30,671 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:20:30,671 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:20:30,671 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114522608] [2022-03-03 20:20:30,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:20:30,671 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:20:30,671 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:20:30,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:20:30,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:20:30,671 INFO L87 Difference]: Start difference. First operand 3638 states and 12189 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:31,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:20:31,931 INFO L93 Difference]: Finished difference Result 4183 states and 13831 transitions. [2022-03-03 20:20:31,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-03-03 20:20:31,931 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:20:31,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:20:31,939 INFO L225 Difference]: With dead ends: 4183 [2022-03-03 20:20:31,939 INFO L226 Difference]: Without dead ends: 4140 [2022-03-03 20:20:31,940 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 826 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=311, Invalid=2995, Unknown=0, NotChecked=0, Total=3306 [2022-03-03 20:20:31,940 INFO L933 BasicCegarLoop]: 108 mSDtfsCounter, 310 mSDsluCounter, 1224 mSDsCounter, 0 mSdLazyCounter, 1822 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 1005 SdHoareTripleChecker+Invalid, 1884 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1822 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:20:31,940 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [310 Valid, 1005 Invalid, 1884 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 1822 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:20:31,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4140 states. [2022-03-03 20:20:31,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4140 to 3646. [2022-03-03 20:20:31,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3646 states, 3645 states have (on average 3.349519890260631) internal successors, (12209), 3645 states have internal predecessors, (12209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:31,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3646 states to 3646 states and 12209 transitions. [2022-03-03 20:20:31,996 INFO L78 Accepts]: Start accepts. Automaton has 3646 states and 12209 transitions. Word has length 39 [2022-03-03 20:20:31,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:20:31,997 INFO L470 AbstractCegarLoop]: Abstraction has 3646 states and 12209 transitions. [2022-03-03 20:20:31,997 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:31,997 INFO L276 IsEmpty]: Start isEmpty. Operand 3646 states and 12209 transitions. [2022-03-03 20:20:32,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:20:32,002 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:20:32,002 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:20:32,002 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2022-03-03 20:20:32,002 INFO L402 AbstractCegarLoop]: === Iteration 112 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:20:32,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:20:32,002 INFO L85 PathProgramCache]: Analyzing trace with hash -876677752, now seen corresponding path program 112 times [2022-03-03 20:20:32,003 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:20:32,003 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409771215] [2022-03-03 20:20:32,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:20:32,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:20:32,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:20:32,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:20:32,257 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:20:32,257 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409771215] [2022-03-03 20:20:32,257 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409771215] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:20:32,257 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:20:32,257 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:20:32,258 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272559331] [2022-03-03 20:20:32,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:20:32,258 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:20:32,258 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:20:32,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:20:32,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:20:32,258 INFO L87 Difference]: Start difference. First operand 3646 states and 12209 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:33,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:20:33,681 INFO L93 Difference]: Finished difference Result 4171 states and 13793 transitions. [2022-03-03 20:20:33,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-03-03 20:20:33,681 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:20:33,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:20:33,689 INFO L225 Difference]: With dead ends: 4171 [2022-03-03 20:20:33,689 INFO L226 Difference]: Without dead ends: 4119 [2022-03-03 20:20:33,690 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 786 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=303, Invalid=2889, Unknown=0, NotChecked=0, Total=3192 [2022-03-03 20:20:33,690 INFO L933 BasicCegarLoop]: 106 mSDtfsCounter, 308 mSDsluCounter, 1200 mSDsCounter, 0 mSdLazyCounter, 1793 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 992 SdHoareTripleChecker+Invalid, 1851 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 1793 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:20:33,690 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [308 Valid, 992 Invalid, 1851 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 1793 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:20:33,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4119 states. [2022-03-03 20:20:33,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4119 to 3638. [2022-03-03 20:20:33,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3638 states, 3637 states have (on average 3.351388507011273) internal successors, (12189), 3637 states have internal predecessors, (12189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:33,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3638 states to 3638 states and 12189 transitions. [2022-03-03 20:20:33,750 INFO L78 Accepts]: Start accepts. Automaton has 3638 states and 12189 transitions. Word has length 39 [2022-03-03 20:20:33,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:20:33,750 INFO L470 AbstractCegarLoop]: Abstraction has 3638 states and 12189 transitions. [2022-03-03 20:20:33,750 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:33,751 INFO L276 IsEmpty]: Start isEmpty. Operand 3638 states and 12189 transitions. [2022-03-03 20:20:33,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:20:33,756 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:20:33,756 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:20:33,756 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2022-03-03 20:20:33,756 INFO L402 AbstractCegarLoop]: === Iteration 113 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:20:33,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:20:33,757 INFO L85 PathProgramCache]: Analyzing trace with hash 1822404120, now seen corresponding path program 113 times [2022-03-03 20:20:33,757 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:20:33,757 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898091172] [2022-03-03 20:20:33,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:20:33,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:20:33,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:20:33,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:20:33,987 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:20:33,987 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898091172] [2022-03-03 20:20:33,987 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898091172] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:20:33,987 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:20:33,987 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:20:33,987 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687695022] [2022-03-03 20:20:33,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:20:33,987 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:20:33,987 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:20:33,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:20:33,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:20:33,988 INFO L87 Difference]: Start difference. First operand 3638 states and 12189 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:35,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:20:35,053 INFO L93 Difference]: Finished difference Result 4136 states and 13684 transitions. [2022-03-03 20:20:35,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-03-03 20:20:35,053 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:20:35,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:20:35,062 INFO L225 Difference]: With dead ends: 4136 [2022-03-03 20:20:35,062 INFO L226 Difference]: Without dead ends: 4081 [2022-03-03 20:20:35,062 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 510 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=239, Invalid=2113, Unknown=0, NotChecked=0, Total=2352 [2022-03-03 20:20:35,062 INFO L933 BasicCegarLoop]: 106 mSDtfsCounter, 260 mSDsluCounter, 1189 mSDsCounter, 0 mSdLazyCounter, 1646 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 965 SdHoareTripleChecker+Invalid, 1692 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 1646 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:20:35,062 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [260 Valid, 965 Invalid, 1692 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 1646 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:20:35,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4081 states. [2022-03-03 20:20:35,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4081 to 3640. [2022-03-03 20:20:35,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3640 states, 3639 states have (on average 3.350370981038747) internal successors, (12192), 3639 states have internal predecessors, (12192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:35,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3640 states to 3640 states and 12192 transitions. [2022-03-03 20:20:35,116 INFO L78 Accepts]: Start accepts. Automaton has 3640 states and 12192 transitions. Word has length 39 [2022-03-03 20:20:35,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:20:35,116 INFO L470 AbstractCegarLoop]: Abstraction has 3640 states and 12192 transitions. [2022-03-03 20:20:35,116 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:35,116 INFO L276 IsEmpty]: Start isEmpty. Operand 3640 states and 12192 transitions. [2022-03-03 20:20:35,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:20:35,121 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:20:35,121 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:20:35,122 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2022-03-03 20:20:35,122 INFO L402 AbstractCegarLoop]: === Iteration 114 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:20:35,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:20:35,122 INFO L85 PathProgramCache]: Analyzing trace with hash -1299910954, now seen corresponding path program 114 times [2022-03-03 20:20:35,122 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:20:35,122 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562821893] [2022-03-03 20:20:35,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:20:35,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:20:35,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:20:35,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:20:35,331 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:20:35,331 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562821893] [2022-03-03 20:20:35,331 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562821893] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:20:35,331 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:20:35,331 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:20:35,331 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451929018] [2022-03-03 20:20:35,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:20:35,331 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:20:35,331 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:20:35,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:20:35,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:20:35,332 INFO L87 Difference]: Start difference. First operand 3640 states and 12192 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:36,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:20:36,241 INFO L93 Difference]: Finished difference Result 4046 states and 13486 transitions. [2022-03-03 20:20:36,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 20:20:36,241 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:20:36,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:20:36,249 INFO L225 Difference]: With dead ends: 4046 [2022-03-03 20:20:36,250 INFO L226 Difference]: Without dead ends: 3982 [2022-03-03 20:20:36,250 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 444 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=224, Invalid=1938, Unknown=0, NotChecked=0, Total=2162 [2022-03-03 20:20:36,250 INFO L933 BasicCegarLoop]: 106 mSDtfsCounter, 224 mSDsluCounter, 1177 mSDsCounter, 0 mSdLazyCounter, 1597 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 970 SdHoareTripleChecker+Invalid, 1638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1597 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:20:36,250 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [224 Valid, 970 Invalid, 1638 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1597 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:20:36,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3982 states. [2022-03-03 20:20:36,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3982 to 3634. [2022-03-03 20:20:36,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3634 states, 3633 states have (on average 3.3523259014588493) internal successors, (12179), 3633 states have internal predecessors, (12179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:36,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3634 states to 3634 states and 12179 transitions. [2022-03-03 20:20:36,307 INFO L78 Accepts]: Start accepts. Automaton has 3634 states and 12179 transitions. Word has length 39 [2022-03-03 20:20:36,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:20:36,307 INFO L470 AbstractCegarLoop]: Abstraction has 3634 states and 12179 transitions. [2022-03-03 20:20:36,307 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:36,307 INFO L276 IsEmpty]: Start isEmpty. Operand 3634 states and 12179 transitions. [2022-03-03 20:20:36,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:20:36,313 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:20:36,313 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:20:36,313 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2022-03-03 20:20:36,313 INFO L402 AbstractCegarLoop]: === Iteration 115 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:20:36,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:20:36,313 INFO L85 PathProgramCache]: Analyzing trace with hash 942137368, now seen corresponding path program 115 times [2022-03-03 20:20:36,313 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:20:36,314 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109788037] [2022-03-03 20:20:36,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:20:36,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:20:36,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:20:36,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:20:36,508 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:20:36,508 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109788037] [2022-03-03 20:20:36,508 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109788037] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:20:36,508 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:20:36,508 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:20:36,508 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688489535] [2022-03-03 20:20:36,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:20:36,509 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:20:36,509 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:20:36,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:20:36,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:20:36,509 INFO L87 Difference]: Start difference. First operand 3634 states and 12179 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:37,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:20:37,937 INFO L93 Difference]: Finished difference Result 4309 states and 14218 transitions. [2022-03-03 20:20:37,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-03-03 20:20:37,938 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:20:37,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:20:37,946 INFO L225 Difference]: With dead ends: 4309 [2022-03-03 20:20:37,947 INFO L226 Difference]: Without dead ends: 4172 [2022-03-03 20:20:37,947 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 906 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=314, Invalid=3226, Unknown=0, NotChecked=0, Total=3540 [2022-03-03 20:20:37,947 INFO L933 BasicCegarLoop]: 146 mSDtfsCounter, 331 mSDsluCounter, 1569 mSDsCounter, 0 mSdLazyCounter, 2227 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 331 SdHoareTripleChecker+Valid, 1315 SdHoareTripleChecker+Invalid, 2283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 2227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-03 20:20:37,947 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [331 Valid, 1315 Invalid, 2283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 2227 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-03 20:20:37,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4172 states. [2022-03-03 20:20:37,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4172 to 3638. [2022-03-03 20:20:37,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3638 states, 3637 states have (on average 3.351388507011273) internal successors, (12189), 3637 states have internal predecessors, (12189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:38,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3638 states to 3638 states and 12189 transitions. [2022-03-03 20:20:38,058 INFO L78 Accepts]: Start accepts. Automaton has 3638 states and 12189 transitions. Word has length 39 [2022-03-03 20:20:38,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:20:38,058 INFO L470 AbstractCegarLoop]: Abstraction has 3638 states and 12189 transitions. [2022-03-03 20:20:38,058 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:38,059 INFO L276 IsEmpty]: Start isEmpty. Operand 3638 states and 12189 transitions. [2022-03-03 20:20:38,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:20:38,064 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:20:38,064 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:20:38,064 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2022-03-03 20:20:38,064 INFO L402 AbstractCegarLoop]: === Iteration 116 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:20:38,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:20:38,065 INFO L85 PathProgramCache]: Analyzing trace with hash -552753532, now seen corresponding path program 116 times [2022-03-03 20:20:38,065 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:20:38,065 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420326050] [2022-03-03 20:20:38,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:20:38,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:20:38,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:20:38,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:20:38,229 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:20:38,229 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420326050] [2022-03-03 20:20:38,229 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420326050] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:20:38,229 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:20:38,230 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:20:38,230 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287016434] [2022-03-03 20:20:38,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:20:38,230 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:20:38,230 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:20:38,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:20:38,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:20:38,230 INFO L87 Difference]: Start difference. First operand 3638 states and 12189 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:39,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:20:39,245 INFO L93 Difference]: Finished difference Result 4287 states and 14084 transitions. [2022-03-03 20:20:39,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-03-03 20:20:39,245 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:20:39,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:20:39,254 INFO L225 Difference]: With dead ends: 4287 [2022-03-03 20:20:39,255 INFO L226 Difference]: Without dead ends: 4223 [2022-03-03 20:20:39,255 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 787 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=297, Invalid=2895, Unknown=0, NotChecked=0, Total=3192 [2022-03-03 20:20:39,255 INFO L933 BasicCegarLoop]: 110 mSDtfsCounter, 311 mSDsluCounter, 1292 mSDsCounter, 0 mSdLazyCounter, 1895 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 311 SdHoareTripleChecker+Valid, 1040 SdHoareTripleChecker+Invalid, 1954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 1895 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:20:39,255 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [311 Valid, 1040 Invalid, 1954 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 1895 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:20:39,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4223 states. [2022-03-03 20:20:39,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4223 to 3638. [2022-03-03 20:20:39,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3638 states, 3637 states have (on average 3.351388507011273) internal successors, (12189), 3637 states have internal predecessors, (12189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:39,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3638 states to 3638 states and 12189 transitions. [2022-03-03 20:20:39,315 INFO L78 Accepts]: Start accepts. Automaton has 3638 states and 12189 transitions. Word has length 39 [2022-03-03 20:20:39,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:20:39,316 INFO L470 AbstractCegarLoop]: Abstraction has 3638 states and 12189 transitions. [2022-03-03 20:20:39,316 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:39,316 INFO L276 IsEmpty]: Start isEmpty. Operand 3638 states and 12189 transitions. [2022-03-03 20:20:39,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:20:39,321 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:20:39,321 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:20:39,322 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2022-03-03 20:20:39,322 INFO L402 AbstractCegarLoop]: === Iteration 117 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:20:39,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:20:39,322 INFO L85 PathProgramCache]: Analyzing trace with hash 365730038, now seen corresponding path program 117 times [2022-03-03 20:20:39,322 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:20:39,322 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846601022] [2022-03-03 20:20:39,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:20:39,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:20:39,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:20:39,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:20:39,478 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:20:39,478 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846601022] [2022-03-03 20:20:39,478 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846601022] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:20:39,478 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:20:39,478 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:20:39,478 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758350021] [2022-03-03 20:20:39,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:20:39,479 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:20:39,479 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:20:39,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:20:39,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:20:39,479 INFO L87 Difference]: Start difference. First operand 3638 states and 12189 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:40,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:20:40,371 INFO L93 Difference]: Finished difference Result 4192 states and 13832 transitions. [2022-03-03 20:20:40,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-03-03 20:20:40,371 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:20:40,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:20:40,379 INFO L225 Difference]: With dead ends: 4192 [2022-03-03 20:20:40,379 INFO L226 Difference]: Without dead ends: 4137 [2022-03-03 20:20:40,380 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 477 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=221, Invalid=2035, Unknown=0, NotChecked=0, Total=2256 [2022-03-03 20:20:40,380 INFO L933 BasicCegarLoop]: 112 mSDtfsCounter, 261 mSDsluCounter, 1323 mSDsCounter, 0 mSdLazyCounter, 1764 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 1035 SdHoareTripleChecker+Invalid, 1806 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 1764 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:20:40,380 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [261 Valid, 1035 Invalid, 1806 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 1764 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:20:40,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4137 states. [2022-03-03 20:20:40,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4137 to 3640. [2022-03-03 20:20:40,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3640 states, 3639 states have (on average 3.350370981038747) internal successors, (12192), 3639 states have internal predecessors, (12192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:40,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3640 states to 3640 states and 12192 transitions. [2022-03-03 20:20:40,451 INFO L78 Accepts]: Start accepts. Automaton has 3640 states and 12192 transitions. Word has length 39 [2022-03-03 20:20:40,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:20:40,451 INFO L470 AbstractCegarLoop]: Abstraction has 3640 states and 12192 transitions. [2022-03-03 20:20:40,451 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:40,451 INFO L276 IsEmpty]: Start isEmpty. Operand 3640 states and 12192 transitions. [2022-03-03 20:20:40,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:20:40,457 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:20:40,457 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:20:40,457 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2022-03-03 20:20:40,457 INFO L402 AbstractCegarLoop]: === Iteration 118 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:20:40,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:20:40,457 INFO L85 PathProgramCache]: Analyzing trace with hash 1538382260, now seen corresponding path program 118 times [2022-03-03 20:20:40,458 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:20:40,458 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913870652] [2022-03-03 20:20:40,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:20:40,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:20:40,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:20:40,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:20:40,662 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:20:40,662 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913870652] [2022-03-03 20:20:40,662 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913870652] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:20:40,662 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:20:40,662 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:20:40,662 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676049188] [2022-03-03 20:20:40,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:20:40,663 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:20:40,663 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:20:40,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:20:40,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:20:40,663 INFO L87 Difference]: Start difference. First operand 3640 states and 12192 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:41,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:20:41,693 INFO L93 Difference]: Finished difference Result 4162 states and 13771 transitions. [2022-03-03 20:20:41,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-03 20:20:41,693 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:20:41,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:20:41,701 INFO L225 Difference]: With dead ends: 4162 [2022-03-03 20:20:41,702 INFO L226 Difference]: Without dead ends: 4102 [2022-03-03 20:20:41,702 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 480 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=224, Invalid=2032, Unknown=0, NotChecked=0, Total=2256 [2022-03-03 20:20:41,702 INFO L933 BasicCegarLoop]: 106 mSDtfsCounter, 271 mSDsluCounter, 1220 mSDsCounter, 0 mSdLazyCounter, 1658 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 977 SdHoareTripleChecker+Invalid, 1703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1658 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:20:41,702 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [271 Valid, 977 Invalid, 1703 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 1658 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:20:41,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4102 states. [2022-03-03 20:20:41,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4102 to 3638. [2022-03-03 20:20:41,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3638 states, 3637 states have (on average 3.350838603244432) internal successors, (12187), 3637 states have internal predecessors, (12187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:41,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3638 states to 3638 states and 12187 transitions. [2022-03-03 20:20:41,754 INFO L78 Accepts]: Start accepts. Automaton has 3638 states and 12187 transitions. Word has length 39 [2022-03-03 20:20:41,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:20:41,755 INFO L470 AbstractCegarLoop]: Abstraction has 3638 states and 12187 transitions. [2022-03-03 20:20:41,755 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:41,755 INFO L276 IsEmpty]: Start isEmpty. Operand 3638 states and 12187 transitions. [2022-03-03 20:20:41,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:20:41,760 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:20:41,761 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:20:41,761 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2022-03-03 20:20:41,761 INFO L402 AbstractCegarLoop]: === Iteration 119 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:20:41,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:20:41,761 INFO L85 PathProgramCache]: Analyzing trace with hash -541184282, now seen corresponding path program 119 times [2022-03-03 20:20:41,761 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:20:41,761 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501899575] [2022-03-03 20:20:41,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:20:41,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:20:41,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:20:41,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:20:41,916 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:20:41,916 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501899575] [2022-03-03 20:20:41,916 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501899575] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:20:41,916 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:20:41,916 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 20:20:41,917 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311365890] [2022-03-03 20:20:41,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:20:41,917 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-03-03 20:20:41,917 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:20:41,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-03-03 20:20:41,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2022-03-03 20:20:41,917 INFO L87 Difference]: Start difference. First operand 3638 states and 12187 transitions. Second operand has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:42,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:20:42,823 INFO L93 Difference]: Finished difference Result 4073 states and 13558 transitions. [2022-03-03 20:20:42,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-03 20:20:42,823 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:20:42,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:20:42,832 INFO L225 Difference]: With dead ends: 4073 [2022-03-03 20:20:42,839 INFO L226 Difference]: Without dead ends: 3997 [2022-03-03 20:20:42,840 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 390 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=199, Invalid=1693, Unknown=0, NotChecked=0, Total=1892 [2022-03-03 20:20:42,851 INFO L933 BasicCegarLoop]: 107 mSDtfsCounter, 225 mSDsluCounter, 1085 mSDsCounter, 0 mSdLazyCounter, 1511 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 884 SdHoareTripleChecker+Invalid, 1551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:20:42,851 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [225 Valid, 884 Invalid, 1551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1511 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:20:42,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3997 states. [2022-03-03 20:20:42,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3997 to 3646. [2022-03-03 20:20:42,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3646 states, 3645 states have (on average 3.3478737997256514) internal successors, (12203), 3645 states have internal predecessors, (12203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:42,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3646 states to 3646 states and 12203 transitions. [2022-03-03 20:20:42,907 INFO L78 Accepts]: Start accepts. Automaton has 3646 states and 12203 transitions. Word has length 39 [2022-03-03 20:20:42,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:20:42,908 INFO L470 AbstractCegarLoop]: Abstraction has 3646 states and 12203 transitions. [2022-03-03 20:20:42,908 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:42,908 INFO L276 IsEmpty]: Start isEmpty. Operand 3646 states and 12203 transitions. [2022-03-03 20:20:42,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:20:42,913 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:20:42,913 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:20:42,913 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2022-03-03 20:20:42,913 INFO L402 AbstractCegarLoop]: === Iteration 120 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:20:42,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:20:42,913 INFO L85 PathProgramCache]: Analyzing trace with hash -1559237894, now seen corresponding path program 120 times [2022-03-03 20:20:42,914 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:20:42,914 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320896046] [2022-03-03 20:20:42,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:20:42,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:20:42,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:20:43,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:20:43,083 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:20:43,083 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320896046] [2022-03-03 20:20:43,083 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320896046] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:20:43,083 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:20:43,083 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:20:43,083 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346476549] [2022-03-03 20:20:43,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:20:43,084 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:20:43,084 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:20:43,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:20:43,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:20:43,084 INFO L87 Difference]: Start difference. First operand 3646 states and 12203 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:43,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:20:43,846 INFO L93 Difference]: Finished difference Result 4055 states and 13504 transitions. [2022-03-03 20:20:43,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 20:20:43,846 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:20:43,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:20:43,855 INFO L225 Difference]: With dead ends: 4055 [2022-03-03 20:20:43,855 INFO L226 Difference]: Without dead ends: 3977 [2022-03-03 20:20:43,855 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 447 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=215, Invalid=1947, Unknown=0, NotChecked=0, Total=2162 [2022-03-03 20:20:43,856 INFO L933 BasicCegarLoop]: 107 mSDtfsCounter, 255 mSDsluCounter, 1183 mSDsCounter, 0 mSdLazyCounter, 1600 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 976 SdHoareTripleChecker+Invalid, 1644 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 1600 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 20:20:43,856 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [255 Valid, 976 Invalid, 1644 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 1600 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 20:20:43,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3977 states. [2022-03-03 20:20:43,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3977 to 3626. [2022-03-03 20:20:43,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3626 states, 3625 states have (on average 3.353103448275862) internal successors, (12155), 3625 states have internal predecessors, (12155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:43,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3626 states to 3626 states and 12155 transitions. [2022-03-03 20:20:43,916 INFO L78 Accepts]: Start accepts. Automaton has 3626 states and 12155 transitions. Word has length 39 [2022-03-03 20:20:43,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:20:43,916 INFO L470 AbstractCegarLoop]: Abstraction has 3626 states and 12155 transitions. [2022-03-03 20:20:43,916 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:43,916 INFO L276 IsEmpty]: Start isEmpty. Operand 3626 states and 12155 transitions. [2022-03-03 20:20:43,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:20:43,922 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:20:43,922 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:20:43,922 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2022-03-03 20:20:43,922 INFO L402 AbstractCegarLoop]: === Iteration 121 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:20:43,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:20:43,922 INFO L85 PathProgramCache]: Analyzing trace with hash 324873820, now seen corresponding path program 121 times [2022-03-03 20:20:43,922 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:20:43,922 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22194762] [2022-03-03 20:20:43,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:20:43,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:20:43,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:20:44,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:20:44,076 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:20:44,076 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22194762] [2022-03-03 20:20:44,076 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22194762] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:20:44,076 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:20:44,076 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:20:44,076 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014181459] [2022-03-03 20:20:44,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:20:44,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:20:44,077 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:20:44,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:20:44,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:20:44,077 INFO L87 Difference]: Start difference. First operand 3626 states and 12155 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:45,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:20:45,256 INFO L93 Difference]: Finished difference Result 4269 states and 14190 transitions. [2022-03-03 20:20:45,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-03-03 20:20:45,256 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:20:45,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:20:45,264 INFO L225 Difference]: With dead ends: 4269 [2022-03-03 20:20:45,265 INFO L226 Difference]: Without dead ends: 4202 [2022-03-03 20:20:45,265 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 532 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=243, Invalid=2207, Unknown=0, NotChecked=0, Total=2450 [2022-03-03 20:20:45,265 INFO L933 BasicCegarLoop]: 130 mSDtfsCounter, 259 mSDsluCounter, 1374 mSDsCounter, 0 mSdLazyCounter, 1901 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 1208 SdHoareTripleChecker+Invalid, 1947 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 1901 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:20:45,265 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [259 Valid, 1208 Invalid, 1947 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 1901 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:20:45,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4202 states. [2022-03-03 20:20:45,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4202 to 3658. [2022-03-03 20:20:45,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3658 states, 3657 states have (on average 3.347826086956522) internal successors, (12243), 3657 states have internal predecessors, (12243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:45,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3658 states to 3658 states and 12243 transitions. [2022-03-03 20:20:45,318 INFO L78 Accepts]: Start accepts. Automaton has 3658 states and 12243 transitions. Word has length 39 [2022-03-03 20:20:45,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:20:45,318 INFO L470 AbstractCegarLoop]: Abstraction has 3658 states and 12243 transitions. [2022-03-03 20:20:45,318 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:45,318 INFO L276 IsEmpty]: Start isEmpty. Operand 3658 states and 12243 transitions. [2022-03-03 20:20:45,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:20:45,323 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:20:45,323 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:20:45,323 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2022-03-03 20:20:45,323 INFO L402 AbstractCegarLoop]: === Iteration 122 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:20:45,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:20:45,324 INFO L85 PathProgramCache]: Analyzing trace with hash -1394742150, now seen corresponding path program 122 times [2022-03-03 20:20:45,324 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:20:45,324 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849167415] [2022-03-03 20:20:45,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:20:45,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:20:45,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:20:45,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:20:45,561 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:20:45,561 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849167415] [2022-03-03 20:20:45,561 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849167415] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:20:45,561 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:20:45,562 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:20:45,562 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960383696] [2022-03-03 20:20:45,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:20:45,562 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:20:45,562 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:20:45,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:20:45,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:20:45,562 INFO L87 Difference]: Start difference. First operand 3658 states and 12243 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:46,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:20:46,984 INFO L93 Difference]: Finished difference Result 4406 states and 14547 transitions. [2022-03-03 20:20:46,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-03-03 20:20:46,984 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:20:46,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:20:46,994 INFO L225 Difference]: With dead ends: 4406 [2022-03-03 20:20:46,994 INFO L226 Difference]: Without dead ends: 4363 [2022-03-03 20:20:46,995 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 903 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=323, Invalid=3217, Unknown=0, NotChecked=0, Total=3540 [2022-03-03 20:20:46,995 INFO L933 BasicCegarLoop]: 136 mSDtfsCounter, 332 mSDsluCounter, 1510 mSDsCounter, 0 mSdLazyCounter, 2180 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 332 SdHoareTripleChecker+Valid, 1315 SdHoareTripleChecker+Invalid, 2239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 2180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-03 20:20:46,995 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [332 Valid, 1315 Invalid, 2239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 2180 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-03 20:20:47,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4363 states. [2022-03-03 20:20:47,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4363 to 3664. [2022-03-03 20:20:47,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3664 states, 3663 states have (on average 3.3458913458913457) internal successors, (12256), 3663 states have internal predecessors, (12256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:47,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3664 states to 3664 states and 12256 transitions. [2022-03-03 20:20:47,075 INFO L78 Accepts]: Start accepts. Automaton has 3664 states and 12256 transitions. Word has length 39 [2022-03-03 20:20:47,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:20:47,075 INFO L470 AbstractCegarLoop]: Abstraction has 3664 states and 12256 transitions. [2022-03-03 20:20:47,075 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:47,075 INFO L276 IsEmpty]: Start isEmpty. Operand 3664 states and 12256 transitions. [2022-03-03 20:20:47,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:20:47,081 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:20:47,081 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:20:47,081 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2022-03-03 20:20:47,081 INFO L402 AbstractCegarLoop]: === Iteration 123 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:20:47,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:20:47,081 INFO L85 PathProgramCache]: Analyzing trace with hash 1119626844, now seen corresponding path program 123 times [2022-03-03 20:20:47,081 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:20:47,081 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037246611] [2022-03-03 20:20:47,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:20:47,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:20:47,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:20:47,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:20:47,296 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:20:47,296 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037246611] [2022-03-03 20:20:47,296 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037246611] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:20:47,296 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:20:47,296 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:20:47,296 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918475302] [2022-03-03 20:20:47,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:20:47,297 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:20:47,297 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:20:47,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:20:47,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:20:47,297 INFO L87 Difference]: Start difference. First operand 3664 states and 12256 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:48,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:20:48,580 INFO L93 Difference]: Finished difference Result 4337 states and 14367 transitions. [2022-03-03 20:20:48,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-03-03 20:20:48,580 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:20:48,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:20:48,589 INFO L225 Difference]: With dead ends: 4337 [2022-03-03 20:20:48,589 INFO L226 Difference]: Without dead ends: 4273 [2022-03-03 20:20:48,590 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 820 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=305, Invalid=3001, Unknown=0, NotChecked=0, Total=3306 [2022-03-03 20:20:48,590 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 320 mSDsluCounter, 1467 mSDsCounter, 0 mSdLazyCounter, 2098 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 320 SdHoareTripleChecker+Valid, 1281 SdHoareTripleChecker+Invalid, 2156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 2098 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:20:48,590 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [320 Valid, 1281 Invalid, 2156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 2098 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:20:48,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4273 states. [2022-03-03 20:20:48,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4273 to 3646. [2022-03-03 20:20:48,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3646 states, 3645 states have (on average 3.3506172839506174) internal successors, (12213), 3645 states have internal predecessors, (12213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:48,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3646 states to 3646 states and 12213 transitions. [2022-03-03 20:20:48,681 INFO L78 Accepts]: Start accepts. Automaton has 3646 states and 12213 transitions. Word has length 39 [2022-03-03 20:20:48,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:20:48,681 INFO L470 AbstractCegarLoop]: Abstraction has 3646 states and 12213 transitions. [2022-03-03 20:20:48,682 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:48,682 INFO L276 IsEmpty]: Start isEmpty. Operand 3646 states and 12213 transitions. [2022-03-03 20:20:48,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:20:48,687 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:20:48,687 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:20:48,687 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2022-03-03 20:20:48,687 INFO L402 AbstractCegarLoop]: === Iteration 124 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:20:48,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:20:48,687 INFO L85 PathProgramCache]: Analyzing trace with hash 1740061244, now seen corresponding path program 124 times [2022-03-03 20:20:48,687 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:20:48,687 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317238613] [2022-03-03 20:20:48,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:20:48,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:20:48,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:20:48,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:20:48,865 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:20:48,865 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317238613] [2022-03-03 20:20:48,865 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317238613] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:20:48,865 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:20:48,865 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:20:48,865 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329652981] [2022-03-03 20:20:48,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:20:48,865 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:20:48,865 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:20:48,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:20:48,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:20:48,866 INFO L87 Difference]: Start difference. First operand 3646 states and 12213 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:49,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:20:49,774 INFO L93 Difference]: Finished difference Result 4217 states and 14012 transitions. [2022-03-03 20:20:49,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 20:20:49,774 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:20:49,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:20:49,782 INFO L225 Difference]: With dead ends: 4217 [2022-03-03 20:20:49,783 INFO L226 Difference]: Without dead ends: 4150 [2022-03-03 20:20:49,783 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 387 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=203, Invalid=1777, Unknown=0, NotChecked=0, Total=1980 [2022-03-03 20:20:49,783 INFO L933 BasicCegarLoop]: 113 mSDtfsCounter, 231 mSDsluCounter, 1218 mSDsCounter, 0 mSdLazyCounter, 1735 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 1032 SdHoareTripleChecker+Invalid, 1774 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1735 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:20:49,783 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [231 Valid, 1032 Invalid, 1774 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1735 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:20:49,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4150 states. [2022-03-03 20:20:49,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4150 to 3654. [2022-03-03 20:20:49,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3654 states, 3653 states have (on average 3.3476594579797427) internal successors, (12229), 3653 states have internal predecessors, (12229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:49,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3654 states to 3654 states and 12229 transitions. [2022-03-03 20:20:49,838 INFO L78 Accepts]: Start accepts. Automaton has 3654 states and 12229 transitions. Word has length 39 [2022-03-03 20:20:49,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:20:49,838 INFO L470 AbstractCegarLoop]: Abstraction has 3654 states and 12229 transitions. [2022-03-03 20:20:49,839 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:49,839 INFO L276 IsEmpty]: Start isEmpty. Operand 3654 states and 12229 transitions. [2022-03-03 20:20:49,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:20:49,844 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:20:49,844 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:20:49,844 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2022-03-03 20:20:49,844 INFO L402 AbstractCegarLoop]: === Iteration 125 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:20:49,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:20:49,844 INFO L85 PathProgramCache]: Analyzing trace with hash 1609466396, now seen corresponding path program 125 times [2022-03-03 20:20:49,844 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:20:49,844 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212867035] [2022-03-03 20:20:49,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:20:49,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:20:49,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:20:50,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:20:50,069 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:20:50,069 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212867035] [2022-03-03 20:20:50,069 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212867035] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:20:50,069 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:20:50,069 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:20:50,069 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441031678] [2022-03-03 20:20:50,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:20:50,069 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:20:50,069 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:20:50,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:20:50,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:20:50,069 INFO L87 Difference]: Start difference. First operand 3654 states and 12229 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:51,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:20:51,204 INFO L93 Difference]: Finished difference Result 4205 states and 13972 transitions. [2022-03-03 20:20:51,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-03-03 20:20:51,204 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:20:51,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:20:51,213 INFO L225 Difference]: With dead ends: 4205 [2022-03-03 20:20:51,213 INFO L226 Difference]: Without dead ends: 4142 [2022-03-03 20:20:51,213 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 447 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=217, Invalid=1945, Unknown=0, NotChecked=0, Total=2162 [2022-03-03 20:20:51,213 INFO L933 BasicCegarLoop]: 114 mSDtfsCounter, 237 mSDsluCounter, 1240 mSDsCounter, 0 mSdLazyCounter, 1748 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 1056 SdHoareTripleChecker+Invalid, 1792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 1748 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:20:51,213 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [237 Valid, 1056 Invalid, 1792 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 1748 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:20:51,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4142 states. [2022-03-03 20:20:51,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4142 to 3646. [2022-03-03 20:20:51,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3646 states, 3645 states have (on average 3.349519890260631) internal successors, (12209), 3645 states have internal predecessors, (12209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:51,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3646 states to 3646 states and 12209 transitions. [2022-03-03 20:20:51,316 INFO L78 Accepts]: Start accepts. Automaton has 3646 states and 12209 transitions. Word has length 39 [2022-03-03 20:20:51,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:20:51,316 INFO L470 AbstractCegarLoop]: Abstraction has 3646 states and 12209 transitions. [2022-03-03 20:20:51,316 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:51,316 INFO L276 IsEmpty]: Start isEmpty. Operand 3646 states and 12209 transitions. [2022-03-03 20:20:51,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:20:51,321 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:20:51,321 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:20:51,321 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2022-03-03 20:20:51,322 INFO L402 AbstractCegarLoop]: === Iteration 126 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:20:51,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:20:51,322 INFO L85 PathProgramCache]: Analyzing trace with hash 1473787804, now seen corresponding path program 126 times [2022-03-03 20:20:51,322 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:20:51,322 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563217975] [2022-03-03 20:20:51,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:20:51,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:20:51,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:20:51,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:20:51,544 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:20:51,544 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563217975] [2022-03-03 20:20:51,544 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563217975] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:20:51,544 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:20:51,544 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:20:51,544 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515468879] [2022-03-03 20:20:51,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:20:51,544 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:20:51,544 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:20:51,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:20:51,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:20:51,544 INFO L87 Difference]: Start difference. First operand 3646 states and 12209 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:52,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:20:52,925 INFO L93 Difference]: Finished difference Result 4360 states and 14335 transitions. [2022-03-03 20:20:52,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-03-03 20:20:52,925 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:20:52,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:20:52,934 INFO L225 Difference]: With dead ends: 4360 [2022-03-03 20:20:52,934 INFO L226 Difference]: Without dead ends: 4317 [2022-03-03 20:20:52,935 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 745 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=294, Invalid=2786, Unknown=0, NotChecked=0, Total=3080 [2022-03-03 20:20:52,935 INFO L933 BasicCegarLoop]: 115 mSDtfsCounter, 313 mSDsluCounter, 1327 mSDsCounter, 0 mSdLazyCounter, 1952 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 1111 SdHoareTripleChecker+Invalid, 2010 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 1952 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-03 20:20:52,935 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [313 Valid, 1111 Invalid, 2010 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 1952 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-03 20:20:52,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4317 states. [2022-03-03 20:20:52,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4317 to 3654. [2022-03-03 20:20:52,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3654 states, 3653 states have (on average 3.3476594579797427) internal successors, (12229), 3653 states have internal predecessors, (12229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:52,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3654 states to 3654 states and 12229 transitions. [2022-03-03 20:20:52,989 INFO L78 Accepts]: Start accepts. Automaton has 3654 states and 12229 transitions. Word has length 39 [2022-03-03 20:20:52,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:20:52,989 INFO L470 AbstractCegarLoop]: Abstraction has 3654 states and 12229 transitions. [2022-03-03 20:20:52,989 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:52,989 INFO L276 IsEmpty]: Start isEmpty. Operand 3654 states and 12229 transitions. [2022-03-03 20:20:52,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:20:52,994 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:20:52,994 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:20:52,994 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125 [2022-03-03 20:20:52,995 INFO L402 AbstractCegarLoop]: === Iteration 127 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:20:52,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:20:52,995 INFO L85 PathProgramCache]: Analyzing trace with hash -306810498, now seen corresponding path program 127 times [2022-03-03 20:20:52,996 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:20:52,996 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128518720] [2022-03-03 20:20:52,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:20:52,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:20:53,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:20:53,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:20:53,176 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:20:53,176 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128518720] [2022-03-03 20:20:53,176 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128518720] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:20:53,176 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:20:53,177 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:20:53,177 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257367341] [2022-03-03 20:20:53,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:20:53,177 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:20:53,177 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:20:53,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:20:53,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:20:53,177 INFO L87 Difference]: Start difference. First operand 3654 states and 12229 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:54,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:20:54,474 INFO L93 Difference]: Finished difference Result 4348 states and 14297 transitions. [2022-03-03 20:20:54,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-03-03 20:20:54,475 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:20:54,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:20:54,515 INFO L225 Difference]: With dead ends: 4348 [2022-03-03 20:20:54,515 INFO L226 Difference]: Without dead ends: 4296 [2022-03-03 20:20:54,515 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 706 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=286, Invalid=2684, Unknown=0, NotChecked=0, Total=2970 [2022-03-03 20:20:54,515 INFO L933 BasicCegarLoop]: 113 mSDtfsCounter, 312 mSDsluCounter, 1302 mSDsCounter, 0 mSdLazyCounter, 1912 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 1096 SdHoareTripleChecker+Invalid, 1965 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 1912 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:20:54,515 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [312 Valid, 1096 Invalid, 1965 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 1912 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:20:54,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4296 states. [2022-03-03 20:20:54,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4296 to 3646. [2022-03-03 20:20:54,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3646 states, 3645 states have (on average 3.349519890260631) internal successors, (12209), 3645 states have internal predecessors, (12209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:54,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3646 states to 3646 states and 12209 transitions. [2022-03-03 20:20:54,569 INFO L78 Accepts]: Start accepts. Automaton has 3646 states and 12209 transitions. Word has length 39 [2022-03-03 20:20:54,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:20:54,569 INFO L470 AbstractCegarLoop]: Abstraction has 3646 states and 12209 transitions. [2022-03-03 20:20:54,569 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:54,569 INFO L276 IsEmpty]: Start isEmpty. Operand 3646 states and 12209 transitions. [2022-03-03 20:20:54,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:20:54,574 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:20:54,574 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:20:54,574 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2022-03-03 20:20:54,574 INFO L402 AbstractCegarLoop]: === Iteration 128 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:20:54,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:20:54,575 INFO L85 PathProgramCache]: Analyzing trace with hash -1902695922, now seen corresponding path program 128 times [2022-03-03 20:20:54,575 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:20:54,575 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788521850] [2022-03-03 20:20:54,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:20:54,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:20:54,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:20:54,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:20:54,808 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:20:54,808 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788521850] [2022-03-03 20:20:54,808 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788521850] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:20:54,808 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:20:54,809 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:20:54,809 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436031750] [2022-03-03 20:20:54,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:20:54,809 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:20:54,810 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:20:54,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:20:54,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:20:54,811 INFO L87 Difference]: Start difference. First operand 3646 states and 12209 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:55,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:20:55,960 INFO L93 Difference]: Finished difference Result 4325 states and 14220 transitions. [2022-03-03 20:20:55,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-03-03 20:20:55,961 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:20:55,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:20:55,969 INFO L225 Difference]: With dead ends: 4325 [2022-03-03 20:20:55,969 INFO L226 Difference]: Without dead ends: 4270 [2022-03-03 20:20:55,970 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 474 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=233, Invalid=2023, Unknown=0, NotChecked=0, Total=2256 [2022-03-03 20:20:55,970 INFO L933 BasicCegarLoop]: 111 mSDtfsCounter, 261 mSDsluCounter, 1252 mSDsCounter, 0 mSdLazyCounter, 1750 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 1043 SdHoareTripleChecker+Invalid, 1796 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 1750 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:20:55,970 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [261 Valid, 1043 Invalid, 1796 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 1750 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:20:55,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4270 states. [2022-03-03 20:20:56,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4270 to 3648. [2022-03-03 20:20:56,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3648 states, 3647 states have (on average 3.348505621058404) internal successors, (12212), 3647 states have internal predecessors, (12212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:56,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3648 states to 3648 states and 12212 transitions. [2022-03-03 20:20:56,022 INFO L78 Accepts]: Start accepts. Automaton has 3648 states and 12212 transitions. Word has length 39 [2022-03-03 20:20:56,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:20:56,022 INFO L470 AbstractCegarLoop]: Abstraction has 3648 states and 12212 transitions. [2022-03-03 20:20:56,022 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:56,022 INFO L276 IsEmpty]: Start isEmpty. Operand 3648 states and 12212 transitions. [2022-03-03 20:20:56,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:20:56,027 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:20:56,027 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:20:56,028 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2022-03-03 20:20:56,028 INFO L402 AbstractCegarLoop]: === Iteration 129 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:20:56,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:20:56,028 INFO L85 PathProgramCache]: Analyzing trace with hash -730043700, now seen corresponding path program 129 times [2022-03-03 20:20:56,028 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:20:56,028 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948353984] [2022-03-03 20:20:56,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:20:56,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:20:56,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:20:56,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:20:56,253 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:20:56,254 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948353984] [2022-03-03 20:20:56,254 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948353984] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:20:56,254 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:20:56,254 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:20:56,254 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277403241] [2022-03-03 20:20:56,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:20:56,254 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:20:56,254 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:20:56,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:20:56,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:20:56,254 INFO L87 Difference]: Start difference. First operand 3648 states and 12212 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:57,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:20:57,336 INFO L93 Difference]: Finished difference Result 4260 states and 14068 transitions. [2022-03-03 20:20:57,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 20:20:57,336 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:20:57,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:20:57,345 INFO L225 Difference]: With dead ends: 4260 [2022-03-03 20:20:57,345 INFO L226 Difference]: Without dead ends: 4214 [2022-03-03 20:20:57,346 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 384 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=208, Invalid=1772, Unknown=0, NotChecked=0, Total=1980 [2022-03-03 20:20:57,346 INFO L933 BasicCegarLoop]: 109 mSDtfsCounter, 252 mSDsluCounter, 1250 mSDsCounter, 0 mSdLazyCounter, 1705 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 1040 SdHoareTripleChecker+Invalid, 1740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1705 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:20:57,346 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [252 Valid, 1040 Invalid, 1740 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1705 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:20:57,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4214 states. [2022-03-03 20:20:57,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4214 to 3652. [2022-03-03 20:20:57,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3652 states, 3651 states have (on average 3.3470282114489183) internal successors, (12220), 3651 states have internal predecessors, (12220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:57,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3652 states to 3652 states and 12220 transitions. [2022-03-03 20:20:57,430 INFO L78 Accepts]: Start accepts. Automaton has 3652 states and 12220 transitions. Word has length 39 [2022-03-03 20:20:57,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:20:57,431 INFO L470 AbstractCegarLoop]: Abstraction has 3652 states and 12220 transitions. [2022-03-03 20:20:57,431 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:57,431 INFO L276 IsEmpty]: Start isEmpty. Operand 3652 states and 12220 transitions. [2022-03-03 20:20:57,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:20:57,436 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:20:57,436 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:20:57,436 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128 [2022-03-03 20:20:57,436 INFO L402 AbstractCegarLoop]: === Iteration 130 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:20:57,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:20:57,437 INFO L85 PathProgramCache]: Analyzing trace with hash -977509862, now seen corresponding path program 130 times [2022-03-03 20:20:57,437 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:20:57,437 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497137680] [2022-03-03 20:20:57,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:20:57,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:20:57,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:20:57,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:20:57,656 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:20:57,656 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497137680] [2022-03-03 20:20:57,657 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497137680] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:20:57,657 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:20:57,657 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:20:57,657 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406908498] [2022-03-03 20:20:57,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:20:57,657 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:20:57,657 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:20:57,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:20:57,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:20:57,657 INFO L87 Difference]: Start difference. First operand 3652 states and 12220 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:58,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:20:58,953 INFO L93 Difference]: Finished difference Result 4252 states and 14081 transitions. [2022-03-03 20:20:58,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-03 20:20:58,954 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:20:58,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:20:58,962 INFO L225 Difference]: With dead ends: 4252 [2022-03-03 20:20:58,962 INFO L226 Difference]: Without dead ends: 4203 [2022-03-03 20:20:58,962 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 562 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=257, Invalid=2293, Unknown=0, NotChecked=0, Total=2550 [2022-03-03 20:20:58,962 INFO L933 BasicCegarLoop]: 119 mSDtfsCounter, 256 mSDsluCounter, 1355 mSDsCounter, 0 mSdLazyCounter, 1822 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 1152 SdHoareTripleChecker+Invalid, 1867 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1822 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:20:58,962 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [256 Valid, 1152 Invalid, 1867 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 1822 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:20:58,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4203 states. [2022-03-03 20:20:59,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4203 to 3642. [2022-03-03 20:20:59,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3642 states, 3641 states have (on average 3.3504531722054383) internal successors, (12199), 3641 states have internal predecessors, (12199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:59,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3642 states to 3642 states and 12199 transitions. [2022-03-03 20:20:59,011 INFO L78 Accepts]: Start accepts. Automaton has 3642 states and 12199 transitions. Word has length 39 [2022-03-03 20:20:59,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:20:59,011 INFO L470 AbstractCegarLoop]: Abstraction has 3642 states and 12199 transitions. [2022-03-03 20:20:59,011 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:20:59,011 INFO L276 IsEmpty]: Start isEmpty. Operand 3642 states and 12199 transitions. [2022-03-03 20:20:59,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:20:59,016 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:20:59,016 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:20:59,016 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129 [2022-03-03 20:20:59,016 INFO L402 AbstractCegarLoop]: === Iteration 131 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:20:59,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:20:59,016 INFO L85 PathProgramCache]: Analyzing trace with hash 561365660, now seen corresponding path program 131 times [2022-03-03 20:20:59,016 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:20:59,016 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853102107] [2022-03-03 20:20:59,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:20:59,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:20:59,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:20:59,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:20:59,262 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:20:59,262 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853102107] [2022-03-03 20:20:59,262 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853102107] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:20:59,262 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:20:59,262 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:20:59,262 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010924685] [2022-03-03 20:20:59,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:20:59,262 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:20:59,262 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:20:59,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:20:59,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:20:59,263 INFO L87 Difference]: Start difference. First operand 3642 states and 12199 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:00,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:21:00,314 INFO L93 Difference]: Finished difference Result 4189 states and 13952 transitions. [2022-03-03 20:21:00,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-03-03 20:21:00,315 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:21:00,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:21:00,323 INFO L225 Difference]: With dead ends: 4189 [2022-03-03 20:21:00,323 INFO L226 Difference]: Without dead ends: 4122 [2022-03-03 20:21:00,324 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 310 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=177, Invalid=1545, Unknown=0, NotChecked=0, Total=1722 [2022-03-03 20:21:00,324 INFO L933 BasicCegarLoop]: 120 mSDtfsCounter, 225 mSDsluCounter, 1228 mSDsCounter, 0 mSdLazyCounter, 1806 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 1061 SdHoareTripleChecker+Invalid, 1837 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1806 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:21:00,324 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [225 Valid, 1061 Invalid, 1837 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1806 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:21:00,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4122 states. [2022-03-03 20:21:00,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4122 to 3682. [2022-03-03 20:21:00,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3682 states, 3681 states have (on average 3.343384949741918) internal successors, (12307), 3681 states have internal predecessors, (12307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:00,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3682 states to 3682 states and 12307 transitions. [2022-03-03 20:21:00,394 INFO L78 Accepts]: Start accepts. Automaton has 3682 states and 12307 transitions. Word has length 39 [2022-03-03 20:21:00,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:21:00,394 INFO L470 AbstractCegarLoop]: Abstraction has 3682 states and 12307 transitions. [2022-03-03 20:21:00,394 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:00,394 INFO L276 IsEmpty]: Start isEmpty. Operand 3682 states and 12307 transitions. [2022-03-03 20:21:00,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:21:00,400 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:21:00,400 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:21:00,400 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130 [2022-03-03 20:21:00,400 INFO L402 AbstractCegarLoop]: === Iteration 132 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:21:00,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:21:00,400 INFO L85 PathProgramCache]: Analyzing trace with hash 430770812, now seen corresponding path program 132 times [2022-03-03 20:21:00,400 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:21:00,400 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591427537] [2022-03-03 20:21:00,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:21:00,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:21:00,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:21:00,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:21:00,622 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:21:00,622 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591427537] [2022-03-03 20:21:00,622 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591427537] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:21:00,622 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:21:00,622 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:21:00,622 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722750784] [2022-03-03 20:21:00,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:21:00,622 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:21:00,622 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:21:00,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:21:00,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:21:00,623 INFO L87 Difference]: Start difference. First operand 3682 states and 12307 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:01,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:21:01,546 INFO L93 Difference]: Finished difference Result 4177 states and 13912 transitions. [2022-03-03 20:21:01,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-03 20:21:01,547 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:21:01,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:21:01,555 INFO L225 Difference]: With dead ends: 4177 [2022-03-03 20:21:01,555 INFO L226 Difference]: Without dead ends: 4114 [2022-03-03 20:21:01,555 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 335 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=185, Invalid=1621, Unknown=0, NotChecked=0, Total=1806 [2022-03-03 20:21:01,556 INFO L933 BasicCegarLoop]: 120 mSDtfsCounter, 236 mSDsluCounter, 1220 mSDsCounter, 0 mSdLazyCounter, 1790 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 1066 SdHoareTripleChecker+Invalid, 1828 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1790 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:21:01,556 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [236 Valid, 1066 Invalid, 1828 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1790 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:21:01,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4114 states. [2022-03-03 20:21:01,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4114 to 3674. [2022-03-03 20:21:01,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3674 states, 3673 states have (on average 3.3441328614211816) internal successors, (12283), 3673 states have internal predecessors, (12283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:01,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3674 states to 3674 states and 12283 transitions. [2022-03-03 20:21:01,609 INFO L78 Accepts]: Start accepts. Automaton has 3674 states and 12283 transitions. Word has length 39 [2022-03-03 20:21:01,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:21:01,609 INFO L470 AbstractCegarLoop]: Abstraction has 3674 states and 12283 transitions. [2022-03-03 20:21:01,609 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:01,609 INFO L276 IsEmpty]: Start isEmpty. Operand 3674 states and 12283 transitions. [2022-03-03 20:21:01,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:21:01,615 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:21:01,615 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:21:01,615 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2022-03-03 20:21:01,615 INFO L402 AbstractCegarLoop]: === Iteration 133 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:21:01,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:21:01,615 INFO L85 PathProgramCache]: Analyzing trace with hash -99129636, now seen corresponding path program 133 times [2022-03-03 20:21:01,615 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:21:01,615 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032481432] [2022-03-03 20:21:01,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:21:01,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:21:01,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:21:01,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:21:01,847 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:21:01,847 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032481432] [2022-03-03 20:21:01,847 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032481432] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:21:01,847 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:21:01,847 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:21:01,847 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374071816] [2022-03-03 20:21:01,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:21:01,847 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:21:01,847 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:21:01,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:21:01,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:21:01,848 INFO L87 Difference]: Start difference. First operand 3674 states and 12283 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:02,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:21:02,799 INFO L93 Difference]: Finished difference Result 4177 states and 13904 transitions. [2022-03-03 20:21:02,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-03 20:21:02,800 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:21:02,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:21:02,808 INFO L225 Difference]: With dead ends: 4177 [2022-03-03 20:21:02,808 INFO L226 Difference]: Without dead ends: 4038 [2022-03-03 20:21:02,808 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 360 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=191, Invalid=1701, Unknown=0, NotChecked=0, Total=1892 [2022-03-03 20:21:02,808 INFO L933 BasicCegarLoop]: 125 mSDtfsCounter, 233 mSDsluCounter, 1279 mSDsCounter, 0 mSdLazyCounter, 1795 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 1131 SdHoareTripleChecker+Invalid, 1830 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1795 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:21:02,808 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [233 Valid, 1131 Invalid, 1830 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1795 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:21:02,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4038 states. [2022-03-03 20:21:02,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4038 to 3626. [2022-03-03 20:21:02,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3626 states, 3625 states have (on average 3.348689655172414) internal successors, (12139), 3625 states have internal predecessors, (12139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:02,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3626 states to 3626 states and 12139 transitions. [2022-03-03 20:21:02,858 INFO L78 Accepts]: Start accepts. Automaton has 3626 states and 12139 transitions. Word has length 39 [2022-03-03 20:21:02,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:21:02,858 INFO L470 AbstractCegarLoop]: Abstraction has 3626 states and 12139 transitions. [2022-03-03 20:21:02,858 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:02,858 INFO L276 IsEmpty]: Start isEmpty. Operand 3626 states and 12139 transitions. [2022-03-03 20:21:02,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:21:02,863 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:21:02,863 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:21:02,863 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132 [2022-03-03 20:21:02,864 INFO L402 AbstractCegarLoop]: === Iteration 134 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:21:02,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:21:02,864 INFO L85 PathProgramCache]: Analyzing trace with hash -1369572806, now seen corresponding path program 134 times [2022-03-03 20:21:02,864 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:21:02,864 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170946585] [2022-03-03 20:21:02,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:21:02,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:21:02,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:21:03,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:21:03,111 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:21:03,111 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170946585] [2022-03-03 20:21:03,111 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170946585] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:21:03,111 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:21:03,112 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:21:03,112 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39279208] [2022-03-03 20:21:03,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:21:03,112 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:21:03,112 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:21:03,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:21:03,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:21:03,112 INFO L87 Difference]: Start difference. First operand 3626 states and 12139 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:04,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:21:04,544 INFO L93 Difference]: Finished difference Result 4276 states and 14125 transitions. [2022-03-03 20:21:04,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-03-03 20:21:04,544 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:21:04,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:21:04,552 INFO L225 Difference]: With dead ends: 4276 [2022-03-03 20:21:04,552 INFO L226 Difference]: Without dead ends: 4170 [2022-03-03 20:21:04,553 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 785 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=284, Invalid=2908, Unknown=0, NotChecked=0, Total=3192 [2022-03-03 20:21:04,553 INFO L933 BasicCegarLoop]: 141 mSDtfsCounter, 309 mSDsluCounter, 1477 mSDsCounter, 0 mSdLazyCounter, 2165 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 309 SdHoareTripleChecker+Valid, 1266 SdHoareTripleChecker+Invalid, 2215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 2165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-03 20:21:04,553 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [309 Valid, 1266 Invalid, 2215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 2165 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-03 20:21:04,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4170 states. [2022-03-03 20:21:04,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4170 to 3642. [2022-03-03 20:21:04,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3642 states, 3641 states have (on average 3.3466080747047515) internal successors, (12185), 3641 states have internal predecessors, (12185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:04,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3642 states to 3642 states and 12185 transitions. [2022-03-03 20:21:04,609 INFO L78 Accepts]: Start accepts. Automaton has 3642 states and 12185 transitions. Word has length 39 [2022-03-03 20:21:04,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:21:04,609 INFO L470 AbstractCegarLoop]: Abstraction has 3642 states and 12185 transitions. [2022-03-03 20:21:04,609 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:04,609 INFO L276 IsEmpty]: Start isEmpty. Operand 3642 states and 12185 transitions. [2022-03-03 20:21:04,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:21:04,614 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:21:04,614 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:21:04,614 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2022-03-03 20:21:04,615 INFO L402 AbstractCegarLoop]: === Iteration 135 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:21:04,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:21:04,615 INFO L85 PathProgramCache]: Analyzing trace with hash 1430503590, now seen corresponding path program 135 times [2022-03-03 20:21:04,615 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:21:04,615 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083375990] [2022-03-03 20:21:04,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:21:04,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:21:04,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:21:04,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:21:04,841 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:21:04,841 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083375990] [2022-03-03 20:21:04,841 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083375990] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:21:04,841 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:21:04,841 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:21:04,841 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432501498] [2022-03-03 20:21:04,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:21:04,841 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:21:04,842 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:21:04,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:21:04,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:21:04,842 INFO L87 Difference]: Start difference. First operand 3642 states and 12185 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:06,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:21:06,025 INFO L93 Difference]: Finished difference Result 4285 states and 14055 transitions. [2022-03-03 20:21:06,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-03-03 20:21:06,026 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:21:06,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:21:06,034 INFO L225 Difference]: With dead ends: 4285 [2022-03-03 20:21:06,034 INFO L226 Difference]: Without dead ends: 4221 [2022-03-03 20:21:06,035 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 752 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=283, Invalid=2797, Unknown=0, NotChecked=0, Total=3080 [2022-03-03 20:21:06,035 INFO L933 BasicCegarLoop]: 107 mSDtfsCounter, 302 mSDsluCounter, 1261 mSDsCounter, 0 mSdLazyCounter, 1849 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 1017 SdHoareTripleChecker+Invalid, 1907 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 1849 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:21:06,035 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [302 Valid, 1017 Invalid, 1907 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 1849 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:21:06,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4221 states. [2022-03-03 20:21:06,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4221 to 3642. [2022-03-03 20:21:06,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3642 states, 3641 states have (on average 3.3466080747047515) internal successors, (12185), 3641 states have internal predecessors, (12185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:06,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3642 states to 3642 states and 12185 transitions. [2022-03-03 20:21:06,105 INFO L78 Accepts]: Start accepts. Automaton has 3642 states and 12185 transitions. Word has length 39 [2022-03-03 20:21:06,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:21:06,105 INFO L470 AbstractCegarLoop]: Abstraction has 3642 states and 12185 transitions. [2022-03-03 20:21:06,105 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:06,105 INFO L276 IsEmpty]: Start isEmpty. Operand 3642 states and 12185 transitions. [2022-03-03 20:21:06,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:21:06,111 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:21:06,111 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:21:06,111 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2022-03-03 20:21:06,111 INFO L402 AbstractCegarLoop]: === Iteration 136 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:21:06,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:21:06,112 INFO L85 PathProgramCache]: Analyzing trace with hash -1945980136, now seen corresponding path program 136 times [2022-03-03 20:21:06,112 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:21:06,112 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206228986] [2022-03-03 20:21:06,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:21:06,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:21:06,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:21:06,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:21:06,258 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:21:06,258 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206228986] [2022-03-03 20:21:06,258 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206228986] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:21:06,258 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:21:06,258 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:21:06,258 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274639683] [2022-03-03 20:21:06,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:21:06,259 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:21:06,259 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:21:06,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:21:06,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:21:06,259 INFO L87 Difference]: Start difference. First operand 3642 states and 12185 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:07,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:21:07,076 INFO L93 Difference]: Finished difference Result 4182 states and 13783 transitions. [2022-03-03 20:21:07,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 20:21:07,076 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:21:07,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:21:07,084 INFO L225 Difference]: With dead ends: 4182 [2022-03-03 20:21:07,085 INFO L226 Difference]: Without dead ends: 4139 [2022-03-03 20:21:07,085 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 420 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=202, Invalid=1868, Unknown=0, NotChecked=0, Total=2070 [2022-03-03 20:21:07,085 INFO L933 BasicCegarLoop]: 107 mSDtfsCounter, 255 mSDsluCounter, 1255 mSDsCounter, 0 mSdLazyCounter, 1705 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 978 SdHoareTripleChecker+Invalid, 1744 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1705 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:21:07,086 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [255 Valid, 978 Invalid, 1744 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1705 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:21:07,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4139 states. [2022-03-03 20:21:07,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4139 to 3648. [2022-03-03 20:21:07,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3648 states, 3647 states have (on average 3.344666849465314) internal successors, (12198), 3647 states have internal predecessors, (12198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:07,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3648 states to 3648 states and 12198 transitions. [2022-03-03 20:21:07,138 INFO L78 Accepts]: Start accepts. Automaton has 3648 states and 12198 transitions. Word has length 39 [2022-03-03 20:21:07,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:21:07,138 INFO L470 AbstractCegarLoop]: Abstraction has 3648 states and 12198 transitions. [2022-03-03 20:21:07,138 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:07,138 INFO L276 IsEmpty]: Start isEmpty. Operand 3648 states and 12198 transitions. [2022-03-03 20:21:07,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:21:07,143 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:21:07,143 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:21:07,143 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135 [2022-03-03 20:21:07,143 INFO L402 AbstractCegarLoop]: === Iteration 137 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:21:07,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:21:07,144 INFO L85 PathProgramCache]: Analyzing trace with hash -1925831402, now seen corresponding path program 137 times [2022-03-03 20:21:07,144 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:21:07,144 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375767058] [2022-03-03 20:21:07,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:21:07,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:21:07,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:21:07,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:21:07,315 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:21:07,315 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375767058] [2022-03-03 20:21:07,315 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375767058] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:21:07,316 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:21:07,316 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:21:07,316 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308613612] [2022-03-03 20:21:07,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:21:07,316 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:21:07,316 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:21:07,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:21:07,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:21:07,316 INFO L87 Difference]: Start difference. First operand 3648 states and 12198 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:08,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:21:08,125 INFO L93 Difference]: Finished difference Result 4151 states and 13720 transitions. [2022-03-03 20:21:08,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-03 20:21:08,126 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:21:08,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:21:08,134 INFO L225 Difference]: With dead ends: 4151 [2022-03-03 20:21:08,134 INFO L226 Difference]: Without dead ends: 4108 [2022-03-03 20:21:08,135 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 478 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=221, Invalid=2035, Unknown=0, NotChecked=0, Total=2256 [2022-03-03 20:21:08,135 INFO L933 BasicCegarLoop]: 111 mSDtfsCounter, 254 mSDsluCounter, 1299 mSDsCounter, 0 mSdLazyCounter, 1719 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 1027 SdHoareTripleChecker+Invalid, 1765 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 1719 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 20:21:08,135 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [254 Valid, 1027 Invalid, 1765 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 1719 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 20:21:08,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4108 states. [2022-03-03 20:21:08,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4108 to 3644. [2022-03-03 20:21:08,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3644 states, 3643 states have (on average 3.3455942904199834) internal successors, (12188), 3643 states have internal predecessors, (12188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:08,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3644 states to 3644 states and 12188 transitions. [2022-03-03 20:21:08,217 INFO L78 Accepts]: Start accepts. Automaton has 3644 states and 12188 transitions. Word has length 39 [2022-03-03 20:21:08,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:21:08,217 INFO L470 AbstractCegarLoop]: Abstraction has 3644 states and 12188 transitions. [2022-03-03 20:21:08,217 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:08,217 INFO L276 IsEmpty]: Start isEmpty. Operand 3644 states and 12188 transitions. [2022-03-03 20:21:08,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:21:08,222 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:21:08,222 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:21:08,223 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2022-03-03 20:21:08,223 INFO L402 AbstractCegarLoop]: === Iteration 138 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:21:08,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:21:08,223 INFO L85 PathProgramCache]: Analyzing trace with hash -773327914, now seen corresponding path program 138 times [2022-03-03 20:21:08,223 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:21:08,223 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152019205] [2022-03-03 20:21:08,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:21:08,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:21:08,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:21:08,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:21:08,468 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:21:08,468 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152019205] [2022-03-03 20:21:08,468 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152019205] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:21:08,468 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:21:08,468 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:21:08,468 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287539272] [2022-03-03 20:21:08,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:21:08,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:21:08,468 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:21:08,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:21:08,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:21:08,469 INFO L87 Difference]: Start difference. First operand 3644 states and 12188 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:09,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:21:09,566 INFO L93 Difference]: Finished difference Result 4160 states and 13742 transitions. [2022-03-03 20:21:09,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-03 20:21:09,567 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:21:09,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:21:09,574 INFO L225 Difference]: With dead ends: 4160 [2022-03-03 20:21:09,574 INFO L226 Difference]: Without dead ends: 4100 [2022-03-03 20:21:09,575 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 452 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=213, Invalid=1949, Unknown=0, NotChecked=0, Total=2162 [2022-03-03 20:21:09,575 INFO L933 BasicCegarLoop]: 104 mSDtfsCounter, 263 mSDsluCounter, 1192 mSDsCounter, 0 mSdLazyCounter, 1628 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 955 SdHoareTripleChecker+Invalid, 1678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 1628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:21:09,575 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [263 Valid, 955 Invalid, 1678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 1628 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:21:09,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4100 states. [2022-03-03 20:21:09,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4100 to 3642. [2022-03-03 20:21:09,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3642 states, 3641 states have (on average 3.3460587750617963) internal successors, (12183), 3641 states have internal predecessors, (12183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:09,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3642 states to 3642 states and 12183 transitions. [2022-03-03 20:21:09,623 INFO L78 Accepts]: Start accepts. Automaton has 3642 states and 12183 transitions. Word has length 39 [2022-03-03 20:21:09,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:21:09,624 INFO L470 AbstractCegarLoop]: Abstraction has 3642 states and 12183 transitions. [2022-03-03 20:21:09,624 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:09,624 INFO L276 IsEmpty]: Start isEmpty. Operand 3642 states and 12183 transitions. [2022-03-03 20:21:09,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:21:09,628 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:21:09,628 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:21:09,628 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2022-03-03 20:21:09,629 INFO L402 AbstractCegarLoop]: === Iteration 139 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:21:09,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:21:09,629 INFO L85 PathProgramCache]: Analyzing trace with hash 1442072840, now seen corresponding path program 139 times [2022-03-03 20:21:09,629 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:21:09,629 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427401664] [2022-03-03 20:21:09,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:21:09,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:21:09,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:21:09,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:21:09,841 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:21:09,841 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427401664] [2022-03-03 20:21:09,841 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427401664] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:21:09,841 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:21:09,841 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 20:21:09,841 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921265626] [2022-03-03 20:21:09,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:21:09,841 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-03-03 20:21:09,841 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:21:09,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-03-03 20:21:09,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2022-03-03 20:21:09,842 INFO L87 Difference]: Start difference. First operand 3642 states and 12183 transitions. Second operand has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:10,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:21:10,809 INFO L93 Difference]: Finished difference Result 4128 states and 13682 transitions. [2022-03-03 20:21:10,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-03 20:21:10,811 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:21:10,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:21:10,819 INFO L225 Difference]: With dead ends: 4128 [2022-03-03 20:21:10,819 INFO L226 Difference]: Without dead ends: 4052 [2022-03-03 20:21:10,819 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 341 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=178, Invalid=1544, Unknown=0, NotChecked=0, Total=1722 [2022-03-03 20:21:10,820 INFO L933 BasicCegarLoop]: 105 mSDtfsCounter, 225 mSDsluCounter, 1066 mSDsCounter, 0 mSdLazyCounter, 1479 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 866 SdHoareTripleChecker+Invalid, 1516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:21:10,820 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [225 Valid, 866 Invalid, 1516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1479 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:21:10,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4052 states. [2022-03-03 20:21:10,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4052 to 3650. [2022-03-03 20:21:10,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3650 states, 3649 states have (on average 3.3431077007399286) internal successors, (12199), 3649 states have internal predecessors, (12199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:10,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3650 states to 3650 states and 12199 transitions. [2022-03-03 20:21:10,871 INFO L78 Accepts]: Start accepts. Automaton has 3650 states and 12199 transitions. Word has length 39 [2022-03-03 20:21:10,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:21:10,871 INFO L470 AbstractCegarLoop]: Abstraction has 3650 states and 12199 transitions. [2022-03-03 20:21:10,871 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:10,871 INFO L276 IsEmpty]: Start isEmpty. Operand 3650 states and 12199 transitions. [2022-03-03 20:21:10,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:21:10,876 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:21:10,876 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:21:10,876 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2022-03-03 20:21:10,876 INFO L402 AbstractCegarLoop]: === Iteration 140 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:21:10,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:21:10,877 INFO L85 PathProgramCache]: Analyzing trace with hash 424019228, now seen corresponding path program 140 times [2022-03-03 20:21:10,877 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:21:10,877 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661252485] [2022-03-03 20:21:10,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:21:10,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:21:10,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:21:11,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:21:11,182 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:21:11,182 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661252485] [2022-03-03 20:21:11,182 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661252485] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:21:11,182 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:21:11,182 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:21:11,183 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84679981] [2022-03-03 20:21:11,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:21:11,183 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:21:11,183 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:21:11,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:21:11,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:21:11,183 INFO L87 Difference]: Start difference. First operand 3650 states and 12199 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:12,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:21:12,243 INFO L93 Difference]: Finished difference Result 4110 states and 13628 transitions. [2022-03-03 20:21:12,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 20:21:12,243 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:21:12,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:21:12,252 INFO L225 Difference]: With dead ends: 4110 [2022-03-03 20:21:12,252 INFO L226 Difference]: Without dead ends: 4040 [2022-03-03 20:21:12,252 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 396 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=194, Invalid=1786, Unknown=0, NotChecked=0, Total=1980 [2022-03-03 20:21:12,252 INFO L933 BasicCegarLoop]: 106 mSDtfsCounter, 245 mSDsluCounter, 1195 mSDsCounter, 0 mSdLazyCounter, 1603 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 969 SdHoareTripleChecker+Invalid, 1648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1603 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:21:12,252 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [245 Valid, 969 Invalid, 1648 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 1603 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:21:12,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4040 states. [2022-03-03 20:21:12,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4040 to 3638. [2022-03-03 20:21:12,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3638 states, 3637 states have (on average 3.346439373109706) internal successors, (12171), 3637 states have internal predecessors, (12171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:12,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3638 states to 3638 states and 12171 transitions. [2022-03-03 20:21:12,304 INFO L78 Accepts]: Start accepts. Automaton has 3638 states and 12171 transitions. Word has length 39 [2022-03-03 20:21:12,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:21:12,305 INFO L470 AbstractCegarLoop]: Abstraction has 3638 states and 12171 transitions. [2022-03-03 20:21:12,305 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:12,305 INFO L276 IsEmpty]: Start isEmpty. Operand 3638 states and 12171 transitions. [2022-03-03 20:21:12,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:21:12,310 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:21:12,310 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:21:12,310 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2022-03-03 20:21:12,310 INFO L402 AbstractCegarLoop]: === Iteration 141 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:21:12,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:21:12,310 INFO L85 PathProgramCache]: Analyzing trace with hash -255172104, now seen corresponding path program 141 times [2022-03-03 20:21:12,310 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:21:12,311 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290176269] [2022-03-03 20:21:12,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:21:12,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:21:12,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:21:12,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:21:12,524 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:21:12,524 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290176269] [2022-03-03 20:21:12,524 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290176269] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:21:12,524 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:21:12,524 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 20:21:12,524 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248223972] [2022-03-03 20:21:12,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:21:12,524 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-03-03 20:21:12,524 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:21:12,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-03-03 20:21:12,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2022-03-03 20:21:12,525 INFO L87 Difference]: Start difference. First operand 3638 states and 12171 transitions. Second operand has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:13,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:21:13,372 INFO L93 Difference]: Finished difference Result 4059 states and 13491 transitions. [2022-03-03 20:21:13,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-03-03 20:21:13,373 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:21:13,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:21:13,381 INFO L225 Difference]: With dead ends: 4059 [2022-03-03 20:21:13,381 INFO L226 Difference]: Without dead ends: 3983 [2022-03-03 20:21:13,381 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 290 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=165, Invalid=1395, Unknown=0, NotChecked=0, Total=1560 [2022-03-03 20:21:13,381 INFO L933 BasicCegarLoop]: 104 mSDtfsCounter, 203 mSDsluCounter, 1056 mSDsCounter, 0 mSdLazyCounter, 1432 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 865 SdHoareTripleChecker+Invalid, 1463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:21:13,381 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [203 Valid, 865 Invalid, 1463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1432 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:21:13,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3983 states. [2022-03-03 20:21:13,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3983 to 3670. [2022-03-03 20:21:13,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3670 states, 3669 states have (on average 3.341237394385391) internal successors, (12259), 3669 states have internal predecessors, (12259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:13,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3670 states to 3670 states and 12259 transitions. [2022-03-03 20:21:13,434 INFO L78 Accepts]: Start accepts. Automaton has 3670 states and 12259 transitions. Word has length 39 [2022-03-03 20:21:13,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:21:13,435 INFO L470 AbstractCegarLoop]: Abstraction has 3670 states and 12259 transitions. [2022-03-03 20:21:13,435 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:13,435 INFO L276 IsEmpty]: Start isEmpty. Operand 3670 states and 12259 transitions. [2022-03-03 20:21:13,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:21:13,440 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:21:13,440 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:21:13,440 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2022-03-03 20:21:13,440 INFO L402 AbstractCegarLoop]: === Iteration 142 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:21:13,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:21:13,441 INFO L85 PathProgramCache]: Analyzing trace with hash -1273225716, now seen corresponding path program 142 times [2022-03-03 20:21:13,441 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:21:13,441 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659808267] [2022-03-03 20:21:13,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:21:13,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:21:13,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:21:13,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:21:13,669 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:21:13,669 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659808267] [2022-03-03 20:21:13,669 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659808267] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:21:13,669 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:21:13,669 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:21:13,669 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011275680] [2022-03-03 20:21:13,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:21:13,669 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:21:13,669 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:21:13,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:21:13,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:21:13,670 INFO L87 Difference]: Start difference. First operand 3670 states and 12259 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:14,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:21:14,639 INFO L93 Difference]: Finished difference Result 4041 states and 13437 transitions. [2022-03-03 20:21:14,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-03-03 20:21:14,639 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:21:14,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:21:14,647 INFO L225 Difference]: With dead ends: 4041 [2022-03-03 20:21:14,647 INFO L226 Difference]: Without dead ends: 3975 [2022-03-03 20:21:14,647 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 340 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=181, Invalid=1625, Unknown=0, NotChecked=0, Total=1806 [2022-03-03 20:21:14,647 INFO L933 BasicCegarLoop]: 104 mSDtfsCounter, 231 mSDsluCounter, 1142 mSDsCounter, 0 mSdLazyCounter, 1511 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 949 SdHoareTripleChecker+Invalid, 1551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:21:14,647 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [231 Valid, 949 Invalid, 1551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1511 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:21:14,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3975 states. [2022-03-03 20:21:14,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3975 to 3662. [2022-03-03 20:21:14,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3662 states, 3661 states have (on average 3.341983064736411) internal successors, (12235), 3661 states have internal predecessors, (12235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:14,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3662 states to 3662 states and 12235 transitions. [2022-03-03 20:21:14,700 INFO L78 Accepts]: Start accepts. Automaton has 3662 states and 12235 transitions. Word has length 39 [2022-03-03 20:21:14,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:21:14,700 INFO L470 AbstractCegarLoop]: Abstraction has 3662 states and 12235 transitions. [2022-03-03 20:21:14,700 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:14,700 INFO L276 IsEmpty]: Start isEmpty. Operand 3662 states and 12235 transitions. [2022-03-03 20:21:14,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:21:14,705 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:21:14,705 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:21:14,705 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2022-03-03 20:21:14,706 INFO L402 AbstractCegarLoop]: === Iteration 143 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:21:14,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:21:14,706 INFO L85 PathProgramCache]: Analyzing trace with hash -1555491370, now seen corresponding path program 143 times [2022-03-03 20:21:14,706 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:21:14,706 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804061052] [2022-03-03 20:21:14,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:21:14,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:21:14,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:21:14,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:21:14,963 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:21:14,963 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804061052] [2022-03-03 20:21:14,963 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804061052] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:21:14,963 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:21:14,963 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:21:14,963 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291155785] [2022-03-03 20:21:14,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:21:14,963 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:21:14,963 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:21:14,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:21:14,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:21:14,964 INFO L87 Difference]: Start difference. First operand 3662 states and 12235 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:15,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:21:15,840 INFO L93 Difference]: Finished difference Result 4050 states and 13458 transitions. [2022-03-03 20:21:15,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-03-03 20:21:15,840 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:21:15,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:21:15,848 INFO L225 Difference]: With dead ends: 4050 [2022-03-03 20:21:15,848 INFO L226 Difference]: Without dead ends: 3888 [2022-03-03 20:21:15,848 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 339 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=181, Invalid=1625, Unknown=0, NotChecked=0, Total=1806 [2022-03-03 20:21:15,849 INFO L933 BasicCegarLoop]: 109 mSDtfsCounter, 223 mSDsluCounter, 1199 mSDsCounter, 0 mSdLazyCounter, 1509 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 1014 SdHoareTripleChecker+Invalid, 1547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:21:15,849 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [223 Valid, 1014 Invalid, 1547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1509 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:21:15,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3888 states. [2022-03-03 20:21:15,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3888 to 3594. [2022-03-03 20:21:15,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3594 states, 3593 states have (on average 3.3529084330642918) internal successors, (12047), 3593 states have internal predecessors, (12047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:15,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3594 states to 3594 states and 12047 transitions. [2022-03-03 20:21:15,901 INFO L78 Accepts]: Start accepts. Automaton has 3594 states and 12047 transitions. Word has length 39 [2022-03-03 20:21:15,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:21:15,901 INFO L470 AbstractCegarLoop]: Abstraction has 3594 states and 12047 transitions. [2022-03-03 20:21:15,901 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:15,901 INFO L276 IsEmpty]: Start isEmpty. Operand 3594 states and 12047 transitions. [2022-03-03 20:21:15,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:21:15,906 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:21:15,906 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:21:15,906 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142 [2022-03-03 20:21:15,906 INFO L402 AbstractCegarLoop]: === Iteration 144 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:21:15,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:21:15,907 INFO L85 PathProgramCache]: Analyzing trace with hash 402994890, now seen corresponding path program 144 times [2022-03-03 20:21:15,907 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:21:15,907 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444930026] [2022-03-03 20:21:15,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:21:15,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:21:15,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:21:16,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:21:16,183 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:21:16,183 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444930026] [2022-03-03 20:21:16,183 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444930026] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:21:16,183 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:21:16,184 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:21:16,184 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30834595] [2022-03-03 20:21:16,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:21:16,184 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:21:16,184 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:21:16,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:21:16,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:21:16,184 INFO L87 Difference]: Start difference. First operand 3594 states and 12047 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:17,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:21:17,480 INFO L93 Difference]: Finished difference Result 4277 states and 14182 transitions. [2022-03-03 20:21:17,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-03 20:21:17,480 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:21:17,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:21:17,489 INFO L225 Difference]: With dead ends: 4277 [2022-03-03 20:21:17,489 INFO L226 Difference]: Without dead ends: 4210 [2022-03-03 20:21:17,489 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 673 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=281, Invalid=2689, Unknown=0, NotChecked=0, Total=2970 [2022-03-03 20:21:17,489 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 304 mSDsluCounter, 1519 mSDsCounter, 0 mSdLazyCounter, 2016 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 1326 SdHoareTripleChecker+Invalid, 2078 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 2016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-03 20:21:17,489 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [304 Valid, 1326 Invalid, 2078 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 2016 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-03 20:21:17,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4210 states. [2022-03-03 20:21:17,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4210 to 3652. [2022-03-03 20:21:17,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3652 states, 3651 states have (on average 3.3470282114489183) internal successors, (12220), 3651 states have internal predecessors, (12220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:17,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3652 states to 3652 states and 12220 transitions. [2022-03-03 20:21:17,543 INFO L78 Accepts]: Start accepts. Automaton has 3652 states and 12220 transitions. Word has length 39 [2022-03-03 20:21:17,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:21:17,544 INFO L470 AbstractCegarLoop]: Abstraction has 3652 states and 12220 transitions. [2022-03-03 20:21:17,544 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:17,544 INFO L276 IsEmpty]: Start isEmpty. Operand 3652 states and 12220 transitions. [2022-03-03 20:21:17,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:21:17,549 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:21:17,549 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:21:17,549 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143 [2022-03-03 20:21:17,549 INFO L402 AbstractCegarLoop]: === Iteration 145 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:21:17,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:21:17,550 INFO L85 PathProgramCache]: Analyzing trace with hash -1316621080, now seen corresponding path program 145 times [2022-03-03 20:21:17,550 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:21:17,550 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687298996] [2022-03-03 20:21:17,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:21:17,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:21:17,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:21:17,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:21:17,710 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:21:17,710 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687298996] [2022-03-03 20:21:17,710 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687298996] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:21:17,710 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:21:17,710 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:21:17,710 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657341298] [2022-03-03 20:21:17,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:21:17,710 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:21:17,711 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:21:17,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:21:17,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:21:17,711 INFO L87 Difference]: Start difference. First operand 3652 states and 12220 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:18,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:21:18,908 INFO L93 Difference]: Finished difference Result 4414 states and 14539 transitions. [2022-03-03 20:21:18,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-03-03 20:21:18,908 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:21:18,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:21:18,917 INFO L225 Difference]: With dead ends: 4414 [2022-03-03 20:21:18,917 INFO L226 Difference]: Without dead ends: 4371 [2022-03-03 20:21:18,918 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1040 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=351, Invalid=3681, Unknown=0, NotChecked=0, Total=4032 [2022-03-03 20:21:18,918 INFO L933 BasicCegarLoop]: 135 mSDtfsCounter, 374 mSDsluCounter, 1670 mSDsCounter, 0 mSdLazyCounter, 2313 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 374 SdHoareTripleChecker+Valid, 1445 SdHoareTripleChecker+Invalid, 2386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 2313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:21:18,918 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [374 Valid, 1445 Invalid, 2386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 2313 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:21:18,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4371 states. [2022-03-03 20:21:18,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4371 to 3658. [2022-03-03 20:21:18,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3658 states, 3657 states have (on average 3.345091605140826) internal successors, (12233), 3657 states have internal predecessors, (12233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:18,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3658 states to 3658 states and 12233 transitions. [2022-03-03 20:21:18,971 INFO L78 Accepts]: Start accepts. Automaton has 3658 states and 12233 transitions. Word has length 39 [2022-03-03 20:21:18,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:21:18,971 INFO L470 AbstractCegarLoop]: Abstraction has 3658 states and 12233 transitions. [2022-03-03 20:21:18,971 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:18,971 INFO L276 IsEmpty]: Start isEmpty. Operand 3658 states and 12233 transitions. [2022-03-03 20:21:18,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:21:18,976 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:21:18,976 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:21:18,976 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144 [2022-03-03 20:21:18,976 INFO L402 AbstractCegarLoop]: === Iteration 146 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:21:18,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:21:18,976 INFO L85 PathProgramCache]: Analyzing trace with hash 1197747914, now seen corresponding path program 146 times [2022-03-03 20:21:18,976 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:21:18,976 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440723454] [2022-03-03 20:21:18,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:21:18,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:21:18,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:21:19,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:21:19,141 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:21:19,141 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440723454] [2022-03-03 20:21:19,141 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440723454] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:21:19,141 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:21:19,141 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:21:19,141 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832821406] [2022-03-03 20:21:19,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:21:19,141 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:21:19,141 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:21:19,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:21:19,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:21:19,142 INFO L87 Difference]: Start difference. First operand 3658 states and 12233 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:20,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:21:20,427 INFO L93 Difference]: Finished difference Result 4345 states and 14359 transitions. [2022-03-03 20:21:20,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-03-03 20:21:20,427 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:21:20,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:21:20,435 INFO L225 Difference]: With dead ends: 4345 [2022-03-03 20:21:20,436 INFO L226 Difference]: Without dead ends: 4281 [2022-03-03 20:21:20,436 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 950 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=333, Invalid=3449, Unknown=0, NotChecked=0, Total=3782 [2022-03-03 20:21:20,436 INFO L933 BasicCegarLoop]: 130 mSDtfsCounter, 357 mSDsluCounter, 1622 mSDsCounter, 0 mSdLazyCounter, 2226 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 1407 SdHoareTripleChecker+Invalid, 2298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 2226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:21:20,436 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [357 Valid, 1407 Invalid, 2298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 2226 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:21:20,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4281 states. [2022-03-03 20:21:20,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4281 to 3640. [2022-03-03 20:21:20,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3640 states, 3639 states have (on average 3.3498213794998626) internal successors, (12190), 3639 states have internal predecessors, (12190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:20,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3640 states to 3640 states and 12190 transitions. [2022-03-03 20:21:20,489 INFO L78 Accepts]: Start accepts. Automaton has 3640 states and 12190 transitions. Word has length 39 [2022-03-03 20:21:20,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:21:20,489 INFO L470 AbstractCegarLoop]: Abstraction has 3640 states and 12190 transitions. [2022-03-03 20:21:20,489 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:20,489 INFO L276 IsEmpty]: Start isEmpty. Operand 3640 states and 12190 transitions. [2022-03-03 20:21:20,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:21:20,494 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:21:20,494 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:21:20,494 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145 [2022-03-03 20:21:20,495 INFO L402 AbstractCegarLoop]: === Iteration 147 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:21:20,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:21:20,495 INFO L85 PathProgramCache]: Analyzing trace with hash 1818182314, now seen corresponding path program 147 times [2022-03-03 20:21:20,495 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:21:20,495 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123398272] [2022-03-03 20:21:20,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:21:20,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:21:20,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:21:20,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:21:20,654 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:21:20,654 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123398272] [2022-03-03 20:21:20,654 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123398272] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:21:20,654 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:21:20,654 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:21:20,654 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416832188] [2022-03-03 20:21:20,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:21:20,655 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:21:20,655 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:21:20,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:21:20,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:21:20,655 INFO L87 Difference]: Start difference. First operand 3640 states and 12190 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:21,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:21:21,518 INFO L93 Difference]: Finished difference Result 4245 states and 14072 transitions. [2022-03-03 20:21:21,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-03-03 20:21:21,518 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:21:21,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:21:21,526 INFO L225 Difference]: With dead ends: 4245 [2022-03-03 20:21:21,526 INFO L226 Difference]: Without dead ends: 4178 [2022-03-03 20:21:21,526 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 541 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=247, Invalid=2303, Unknown=0, NotChecked=0, Total=2550 [2022-03-03 20:21:21,527 INFO L933 BasicCegarLoop]: 112 mSDtfsCounter, 274 mSDsluCounter, 1364 mSDsCounter, 0 mSdLazyCounter, 1842 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 1142 SdHoareTripleChecker+Invalid, 1901 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 1842 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:21:21,527 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [274 Valid, 1142 Invalid, 1901 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 1842 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:21:21,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4178 states. [2022-03-03 20:21:21,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4178 to 3648. [2022-03-03 20:21:21,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3648 states, 3647 states have (on average 3.346860433232794) internal successors, (12206), 3647 states have internal predecessors, (12206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:21,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3648 states to 3648 states and 12206 transitions. [2022-03-03 20:21:21,578 INFO L78 Accepts]: Start accepts. Automaton has 3648 states and 12206 transitions. Word has length 39 [2022-03-03 20:21:21,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:21:21,578 INFO L470 AbstractCegarLoop]: Abstraction has 3648 states and 12206 transitions. [2022-03-03 20:21:21,578 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:21,578 INFO L276 IsEmpty]: Start isEmpty. Operand 3648 states and 12206 transitions. [2022-03-03 20:21:21,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:21:21,583 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:21:21,583 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:21:21,584 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2022-03-03 20:21:21,584 INFO L402 AbstractCegarLoop]: === Iteration 148 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:21:21,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:21:21,584 INFO L85 PathProgramCache]: Analyzing trace with hash 1687587466, now seen corresponding path program 148 times [2022-03-03 20:21:21,584 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:21:21,584 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559324059] [2022-03-03 20:21:21,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:21:21,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:21:21,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:21:21,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:21:21,764 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:21:21,764 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559324059] [2022-03-03 20:21:21,764 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559324059] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:21:21,764 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:21:21,764 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:21:21,764 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330211052] [2022-03-03 20:21:21,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:21:21,765 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:21:21,765 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:21:21,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:21:21,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:21:21,765 INFO L87 Difference]: Start difference. First operand 3648 states and 12206 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:22,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:21:22,667 INFO L93 Difference]: Finished difference Result 4233 states and 14032 transitions. [2022-03-03 20:21:22,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-03 20:21:22,667 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:21:22,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:21:22,675 INFO L225 Difference]: With dead ends: 4233 [2022-03-03 20:21:22,676 INFO L226 Difference]: Without dead ends: 4170 [2022-03-03 20:21:22,676 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 575 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=254, Invalid=2398, Unknown=0, NotChecked=0, Total=2652 [2022-03-03 20:21:22,676 INFO L933 BasicCegarLoop]: 113 mSDtfsCounter, 274 mSDsluCounter, 1389 mSDsCounter, 0 mSdLazyCounter, 1855 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 1169 SdHoareTripleChecker+Invalid, 1915 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 1855 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:21:22,676 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [274 Valid, 1169 Invalid, 1915 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 1855 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:21:22,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4170 states. [2022-03-03 20:21:22,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4170 to 3640. [2022-03-03 20:21:22,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3640 states, 3639 states have (on average 3.348722176422094) internal successors, (12186), 3639 states have internal predecessors, (12186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:22,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3640 states to 3640 states and 12186 transitions. [2022-03-03 20:21:22,727 INFO L78 Accepts]: Start accepts. Automaton has 3640 states and 12186 transitions. Word has length 39 [2022-03-03 20:21:22,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:21:22,727 INFO L470 AbstractCegarLoop]: Abstraction has 3640 states and 12186 transitions. [2022-03-03 20:21:22,727 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:22,727 INFO L276 IsEmpty]: Start isEmpty. Operand 3640 states and 12186 transitions. [2022-03-03 20:21:22,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:21:22,732 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:21:22,732 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:21:22,733 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147 [2022-03-03 20:21:22,733 INFO L402 AbstractCegarLoop]: === Iteration 149 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:21:22,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:21:22,733 INFO L85 PathProgramCache]: Analyzing trace with hash 1551908874, now seen corresponding path program 149 times [2022-03-03 20:21:22,733 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:21:22,733 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553101290] [2022-03-03 20:21:22,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:21:22,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:21:22,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:21:22,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:21:22,890 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:21:22,890 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553101290] [2022-03-03 20:21:22,890 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553101290] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:21:22,890 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:21:22,890 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:21:22,890 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925021119] [2022-03-03 20:21:22,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:21:22,891 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:21:22,891 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:21:22,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:21:22,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:21:22,891 INFO L87 Difference]: Start difference. First operand 3640 states and 12186 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:23,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:21:23,986 INFO L93 Difference]: Finished difference Result 4396 states and 14421 transitions. [2022-03-03 20:21:23,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-03-03 20:21:23,986 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:21:23,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:21:23,995 INFO L225 Difference]: With dead ends: 4396 [2022-03-03 20:21:23,995 INFO L226 Difference]: Without dead ends: 4353 [2022-03-03 20:21:23,995 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 954 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=333, Invalid=3449, Unknown=0, NotChecked=0, Total=3782 [2022-03-03 20:21:23,995 INFO L933 BasicCegarLoop]: 114 mSDtfsCounter, 358 mSDsluCounter, 1493 mSDsCounter, 0 mSdLazyCounter, 2080 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 358 SdHoareTripleChecker+Valid, 1236 SdHoareTripleChecker+Invalid, 2155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 2080 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:21:23,995 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [358 Valid, 1236 Invalid, 2155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 2080 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:21:24,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4353 states. [2022-03-03 20:21:24,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4353 to 3648. [2022-03-03 20:21:24,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3648 states, 3647 states have (on average 3.346860433232794) internal successors, (12206), 3647 states have internal predecessors, (12206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:24,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3648 states to 3648 states and 12206 transitions. [2022-03-03 20:21:24,048 INFO L78 Accepts]: Start accepts. Automaton has 3648 states and 12206 transitions. Word has length 39 [2022-03-03 20:21:24,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:21:24,048 INFO L470 AbstractCegarLoop]: Abstraction has 3648 states and 12206 transitions. [2022-03-03 20:21:24,048 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:24,048 INFO L276 IsEmpty]: Start isEmpty. Operand 3648 states and 12206 transitions. [2022-03-03 20:21:24,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:21:24,085 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:21:24,085 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:21:24,085 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148 [2022-03-03 20:21:24,085 INFO L402 AbstractCegarLoop]: === Iteration 150 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:21:24,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:21:24,085 INFO L85 PathProgramCache]: Analyzing trace with hash -228689428, now seen corresponding path program 150 times [2022-03-03 20:21:24,085 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:21:24,085 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849802183] [2022-03-03 20:21:24,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:21:24,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:21:24,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:21:24,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:21:24,241 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:21:24,241 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849802183] [2022-03-03 20:21:24,241 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849802183] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:21:24,241 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:21:24,241 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:21:24,241 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930095852] [2022-03-03 20:21:24,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:21:24,241 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:21:24,241 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:21:24,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:21:24,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:21:24,242 INFO L87 Difference]: Start difference. First operand 3648 states and 12206 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:25,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:21:25,326 INFO L93 Difference]: Finished difference Result 4384 states and 14383 transitions. [2022-03-03 20:21:25,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-03-03 20:21:25,326 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:21:25,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:21:25,335 INFO L225 Difference]: With dead ends: 4384 [2022-03-03 20:21:25,336 INFO L226 Difference]: Without dead ends: 4332 [2022-03-03 20:21:25,336 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 910 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=325, Invalid=3335, Unknown=0, NotChecked=0, Total=3660 [2022-03-03 20:21:25,336 INFO L933 BasicCegarLoop]: 112 mSDtfsCounter, 353 mSDsluCounter, 1465 mSDsCounter, 0 mSdLazyCounter, 2050 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 353 SdHoareTripleChecker+Valid, 1219 SdHoareTripleChecker+Invalid, 2120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 2050 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:21:25,336 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [353 Valid, 1219 Invalid, 2120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 2050 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:21:25,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4332 states. [2022-03-03 20:21:25,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4332 to 3640. [2022-03-03 20:21:25,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3640 states, 3639 states have (on average 3.348722176422094) internal successors, (12186), 3639 states have internal predecessors, (12186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:25,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3640 states to 3640 states and 12186 transitions. [2022-03-03 20:21:25,393 INFO L78 Accepts]: Start accepts. Automaton has 3640 states and 12186 transitions. Word has length 39 [2022-03-03 20:21:25,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:21:25,393 INFO L470 AbstractCegarLoop]: Abstraction has 3640 states and 12186 transitions. [2022-03-03 20:21:25,393 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:25,393 INFO L276 IsEmpty]: Start isEmpty. Operand 3640 states and 12186 transitions. [2022-03-03 20:21:25,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:21:25,399 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:21:25,399 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:21:25,399 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable149 [2022-03-03 20:21:25,399 INFO L402 AbstractCegarLoop]: === Iteration 151 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:21:25,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:21:25,399 INFO L85 PathProgramCache]: Analyzing trace with hash -1824574852, now seen corresponding path program 151 times [2022-03-03 20:21:25,399 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:21:25,400 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675444068] [2022-03-03 20:21:25,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:21:25,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:21:25,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:21:25,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:21:25,563 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:21:25,563 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675444068] [2022-03-03 20:21:25,563 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675444068] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:21:25,563 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:21:25,563 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:21:25,563 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764213672] [2022-03-03 20:21:25,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:21:25,563 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:21:25,563 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:21:25,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:21:25,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:21:25,564 INFO L87 Difference]: Start difference. First operand 3640 states and 12186 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:26,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:21:26,470 INFO L93 Difference]: Finished difference Result 4361 states and 14306 transitions. [2022-03-03 20:21:26,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-03-03 20:21:26,471 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:21:26,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:21:26,479 INFO L225 Difference]: With dead ends: 4361 [2022-03-03 20:21:26,480 INFO L226 Difference]: Without dead ends: 4306 [2022-03-03 20:21:26,480 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 644 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=271, Invalid=2591, Unknown=0, NotChecked=0, Total=2862 [2022-03-03 20:21:26,480 INFO L933 BasicCegarLoop]: 112 mSDtfsCounter, 302 mSDsluCounter, 1440 mSDsCounter, 0 mSdLazyCounter, 1903 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 1183 SdHoareTripleChecker+Invalid, 1966 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 1903 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:21:26,480 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [302 Valid, 1183 Invalid, 1966 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 1903 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:21:26,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4306 states. [2022-03-03 20:21:26,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4306 to 3642. [2022-03-03 20:21:26,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3642 states, 3641 states have (on average 3.347706673990662) internal successors, (12189), 3641 states have internal predecessors, (12189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:26,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3642 states to 3642 states and 12189 transitions. [2022-03-03 20:21:26,552 INFO L78 Accepts]: Start accepts. Automaton has 3642 states and 12189 transitions. Word has length 39 [2022-03-03 20:21:26,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:21:26,552 INFO L470 AbstractCegarLoop]: Abstraction has 3642 states and 12189 transitions. [2022-03-03 20:21:26,553 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:26,553 INFO L276 IsEmpty]: Start isEmpty. Operand 3642 states and 12189 transitions. [2022-03-03 20:21:26,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:21:26,558 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:21:26,558 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:21:26,558 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable150 [2022-03-03 20:21:26,558 INFO L402 AbstractCegarLoop]: === Iteration 152 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:21:26,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:21:26,558 INFO L85 PathProgramCache]: Analyzing trace with hash -651922630, now seen corresponding path program 152 times [2022-03-03 20:21:26,558 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:21:26,559 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232912642] [2022-03-03 20:21:26,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:21:26,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:21:26,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:21:26,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:21:26,786 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:21:26,786 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232912642] [2022-03-03 20:21:26,786 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232912642] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:21:26,786 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:21:26,786 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:21:26,786 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048238679] [2022-03-03 20:21:26,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:21:26,786 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:21:26,786 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:21:26,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:21:26,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:21:26,787 INFO L87 Difference]: Start difference. First operand 3642 states and 12189 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:27,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:21:27,791 INFO L93 Difference]: Finished difference Result 4296 states and 14154 transitions. [2022-03-03 20:21:27,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-03-03 20:21:27,791 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:21:27,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:21:27,800 INFO L225 Difference]: With dead ends: 4296 [2022-03-03 20:21:27,800 INFO L226 Difference]: Without dead ends: 4250 [2022-03-03 20:21:27,800 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 538 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=246, Invalid=2304, Unknown=0, NotChecked=0, Total=2550 [2022-03-03 20:21:27,800 INFO L933 BasicCegarLoop]: 110 mSDtfsCounter, 286 mSDsluCounter, 1437 mSDsCounter, 0 mSdLazyCounter, 1868 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 1178 SdHoareTripleChecker+Invalid, 1919 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 1868 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:21:27,800 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [286 Valid, 1178 Invalid, 1919 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 1868 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:21:27,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4250 states. [2022-03-03 20:21:27,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4250 to 3646. [2022-03-03 20:21:27,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3646 states, 3645 states have (on average 3.3462277091906723) internal successors, (12197), 3645 states have internal predecessors, (12197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:27,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3646 states to 3646 states and 12197 transitions. [2022-03-03 20:21:27,853 INFO L78 Accepts]: Start accepts. Automaton has 3646 states and 12197 transitions. Word has length 39 [2022-03-03 20:21:27,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:21:27,853 INFO L470 AbstractCegarLoop]: Abstraction has 3646 states and 12197 transitions. [2022-03-03 20:21:27,853 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:27,853 INFO L276 IsEmpty]: Start isEmpty. Operand 3646 states and 12197 transitions. [2022-03-03 20:21:27,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:21:27,858 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:21:27,858 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:21:27,858 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151 [2022-03-03 20:21:27,858 INFO L402 AbstractCegarLoop]: === Iteration 153 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:21:27,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:21:27,859 INFO L85 PathProgramCache]: Analyzing trace with hash -899388792, now seen corresponding path program 153 times [2022-03-03 20:21:27,859 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:21:27,859 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188230633] [2022-03-03 20:21:27,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:21:27,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:21:27,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:21:28,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:21:28,015 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:21:28,015 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188230633] [2022-03-03 20:21:28,016 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188230633] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:21:28,016 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:21:28,016 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:21:28,016 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218450384] [2022-03-03 20:21:28,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:21:28,016 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:21:28,016 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:21:28,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:21:28,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:21:28,016 INFO L87 Difference]: Start difference. First operand 3646 states and 12197 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:28,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:21:28,890 INFO L93 Difference]: Finished difference Result 4256 states and 14065 transitions. [2022-03-03 20:21:28,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-03-03 20:21:28,890 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:21:28,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:21:28,898 INFO L225 Difference]: With dead ends: 4256 [2022-03-03 20:21:28,898 INFO L226 Difference]: Without dead ends: 4207 [2022-03-03 20:21:28,899 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 538 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=250, Invalid=2300, Unknown=0, NotChecked=0, Total=2550 [2022-03-03 20:21:28,899 INFO L933 BasicCegarLoop]: 109 mSDtfsCounter, 285 mSDsluCounter, 1393 mSDsCounter, 0 mSdLazyCounter, 1815 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 1167 SdHoareTripleChecker+Invalid, 1869 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 1815 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 20:21:28,899 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [285 Valid, 1167 Invalid, 1869 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 1815 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 20:21:28,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4207 states. [2022-03-03 20:21:28,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4207 to 3636. [2022-03-03 20:21:28,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3636 states, 3635 states have (on average 3.3485557083906463) internal successors, (12172), 3635 states have internal predecessors, (12172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:28,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3636 states to 3636 states and 12172 transitions. [2022-03-03 20:21:28,966 INFO L78 Accepts]: Start accepts. Automaton has 3636 states and 12172 transitions. Word has length 39 [2022-03-03 20:21:28,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:21:28,967 INFO L470 AbstractCegarLoop]: Abstraction has 3636 states and 12172 transitions. [2022-03-03 20:21:28,967 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:28,967 INFO L276 IsEmpty]: Start isEmpty. Operand 3636 states and 12172 transitions. [2022-03-03 20:21:28,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:21:28,972 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:21:28,972 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:21:28,972 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable152 [2022-03-03 20:21:28,972 INFO L402 AbstractCegarLoop]: === Iteration 154 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:21:28,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:21:28,972 INFO L85 PathProgramCache]: Analyzing trace with hash 639486730, now seen corresponding path program 154 times [2022-03-03 20:21:28,972 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:21:28,973 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467283559] [2022-03-03 20:21:28,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:21:28,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:21:28,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:21:29,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:21:29,134 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:21:29,134 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467283559] [2022-03-03 20:21:29,134 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467283559] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:21:29,134 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:21:29,134 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:21:29,134 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75705794] [2022-03-03 20:21:29,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:21:29,134 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:21:29,134 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:21:29,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:21:29,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:21:29,134 INFO L87 Difference]: Start difference. First operand 3636 states and 12172 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:29,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:21:29,952 INFO L93 Difference]: Finished difference Result 4279 states and 14191 transitions. [2022-03-03 20:21:29,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 20:21:29,952 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:21:29,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:21:29,960 INFO L225 Difference]: With dead ends: 4279 [2022-03-03 20:21:29,960 INFO L226 Difference]: Without dead ends: 4212 [2022-03-03 20:21:29,960 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 417 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=209, Invalid=1953, Unknown=0, NotChecked=0, Total=2162 [2022-03-03 20:21:29,961 INFO L933 BasicCegarLoop]: 121 mSDtfsCounter, 261 mSDsluCounter, 1384 mSDsCounter, 0 mSdLazyCounter, 1934 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 1184 SdHoareTripleChecker+Invalid, 1979 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1934 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:21:29,961 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [261 Valid, 1184 Invalid, 1979 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 1934 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:21:29,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4212 states. [2022-03-03 20:21:30,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4212 to 3676. [2022-03-03 20:21:30,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3676 states, 3675 states have (on average 3.3414965986394556) internal successors, (12280), 3675 states have internal predecessors, (12280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:30,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3676 states to 3676 states and 12280 transitions. [2022-03-03 20:21:30,014 INFO L78 Accepts]: Start accepts. Automaton has 3676 states and 12280 transitions. Word has length 39 [2022-03-03 20:21:30,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:21:30,014 INFO L470 AbstractCegarLoop]: Abstraction has 3676 states and 12280 transitions. [2022-03-03 20:21:30,014 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:30,014 INFO L276 IsEmpty]: Start isEmpty. Operand 3676 states and 12280 transitions. [2022-03-03 20:21:30,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:21:30,019 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:21:30,019 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:21:30,019 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable153 [2022-03-03 20:21:30,019 INFO L402 AbstractCegarLoop]: === Iteration 155 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:21:30,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:21:30,019 INFO L85 PathProgramCache]: Analyzing trace with hash 508891882, now seen corresponding path program 155 times [2022-03-03 20:21:30,019 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:21:30,019 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347797655] [2022-03-03 20:21:30,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:21:30,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:21:30,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:21:30,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:21:30,182 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:21:30,182 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347797655] [2022-03-03 20:21:30,183 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347797655] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:21:30,183 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:21:30,183 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:21:30,183 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553044070] [2022-03-03 20:21:30,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:21:30,183 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:21:30,183 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:21:30,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:21:30,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:21:30,183 INFO L87 Difference]: Start difference. First operand 3676 states and 12280 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:31,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:21:31,011 INFO L93 Difference]: Finished difference Result 4267 states and 14151 transitions. [2022-03-03 20:21:31,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 20:21:31,011 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:21:31,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:21:31,020 INFO L225 Difference]: With dead ends: 4267 [2022-03-03 20:21:31,020 INFO L226 Difference]: Without dead ends: 4204 [2022-03-03 20:21:31,020 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 416 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=211, Invalid=1951, Unknown=0, NotChecked=0, Total=2162 [2022-03-03 20:21:31,020 INFO L933 BasicCegarLoop]: 122 mSDtfsCounter, 263 mSDsluCounter, 1385 mSDsCounter, 0 mSdLazyCounter, 1930 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 1197 SdHoareTripleChecker+Invalid, 1978 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 1930 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:21:31,021 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [263 Valid, 1197 Invalid, 1978 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 1930 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:21:31,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4204 states. [2022-03-03 20:21:31,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4204 to 3668. [2022-03-03 20:21:31,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3668 states, 3667 states have (on average 3.342241614398691) internal successors, (12256), 3667 states have internal predecessors, (12256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:31,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3668 states to 3668 states and 12256 transitions. [2022-03-03 20:21:31,086 INFO L78 Accepts]: Start accepts. Automaton has 3668 states and 12256 transitions. Word has length 39 [2022-03-03 20:21:31,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:21:31,087 INFO L470 AbstractCegarLoop]: Abstraction has 3668 states and 12256 transitions. [2022-03-03 20:21:31,087 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:31,087 INFO L276 IsEmpty]: Start isEmpty. Operand 3668 states and 12256 transitions. [2022-03-03 20:21:31,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:21:31,092 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:21:31,092 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:21:31,092 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable154 [2022-03-03 20:21:31,092 INFO L402 AbstractCegarLoop]: === Iteration 156 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:21:31,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:21:31,092 INFO L85 PathProgramCache]: Analyzing trace with hash -21008566, now seen corresponding path program 156 times [2022-03-03 20:21:31,092 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:21:31,092 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136237161] [2022-03-03 20:21:31,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:21:31,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:21:31,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:21:31,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:21:31,258 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:21:31,258 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136237161] [2022-03-03 20:21:31,259 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136237161] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:21:31,259 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:21:31,259 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:21:31,259 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976959755] [2022-03-03 20:21:31,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:21:31,259 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:21:31,259 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:21:31,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:21:31,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:21:31,259 INFO L87 Difference]: Start difference. First operand 3668 states and 12256 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:32,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:21:32,067 INFO L93 Difference]: Finished difference Result 4279 states and 14179 transitions. [2022-03-03 20:21:32,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 20:21:32,067 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:21:32,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:21:32,075 INFO L225 Difference]: With dead ends: 4279 [2022-03-03 20:21:32,075 INFO L226 Difference]: Without dead ends: 4140 [2022-03-03 20:21:32,075 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 415 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=207, Invalid=1955, Unknown=0, NotChecked=0, Total=2162 [2022-03-03 20:21:32,076 INFO L933 BasicCegarLoop]: 127 mSDtfsCounter, 262 mSDsluCounter, 1451 mSDsCounter, 0 mSdLazyCounter, 1949 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 1269 SdHoareTripleChecker+Invalid, 1993 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 1949 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:21:32,076 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [262 Valid, 1269 Invalid, 1993 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 1949 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:21:32,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4140 states. [2022-03-03 20:21:32,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4140 to 3616. [2022-03-03 20:21:32,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3616 states, 3615 states have (on average 3.34716459197787) internal successors, (12100), 3615 states have internal predecessors, (12100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:32,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3616 states to 3616 states and 12100 transitions. [2022-03-03 20:21:32,128 INFO L78 Accepts]: Start accepts. Automaton has 3616 states and 12100 transitions. Word has length 39 [2022-03-03 20:21:32,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:21:32,128 INFO L470 AbstractCegarLoop]: Abstraction has 3616 states and 12100 transitions. [2022-03-03 20:21:32,128 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:32,128 INFO L276 IsEmpty]: Start isEmpty. Operand 3616 states and 12100 transitions. [2022-03-03 20:21:32,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:21:32,133 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:21:32,133 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:21:32,133 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable155 [2022-03-03 20:21:32,133 INFO L402 AbstractCegarLoop]: === Iteration 157 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:21:32,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:21:32,133 INFO L85 PathProgramCache]: Analyzing trace with hash -1398936488, now seen corresponding path program 157 times [2022-03-03 20:21:32,133 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:21:32,133 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833478343] [2022-03-03 20:21:32,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:21:32,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:21:32,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:21:32,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:21:32,293 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:21:32,293 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833478343] [2022-03-03 20:21:32,293 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833478343] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:21:32,293 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:21:32,293 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:21:32,293 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629813028] [2022-03-03 20:21:32,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:21:32,294 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:21:32,294 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:21:32,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:21:32,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:21:32,294 INFO L87 Difference]: Start difference. First operand 3616 states and 12100 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:33,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:21:33,025 INFO L93 Difference]: Finished difference Result 4091 states and 13567 transitions. [2022-03-03 20:21:33,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-03 20:21:33,025 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:21:33,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:21:33,033 INFO L225 Difference]: With dead ends: 4091 [2022-03-03 20:21:33,033 INFO L226 Difference]: Without dead ends: 4024 [2022-03-03 20:21:33,034 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 391 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=202, Invalid=1868, Unknown=0, NotChecked=0, Total=2070 [2022-03-03 20:21:33,034 INFO L933 BasicCegarLoop]: 111 mSDtfsCounter, 231 mSDsluCounter, 1327 mSDsCounter, 0 mSdLazyCounter, 1649 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 1116 SdHoareTripleChecker+Invalid, 1687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1649 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 20:21:33,034 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [231 Valid, 1116 Invalid, 1687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1649 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 20:21:33,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4024 states. [2022-03-03 20:21:33,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4024 to 3668. [2022-03-03 20:21:33,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3668 states, 3667 states have (on average 3.3367875647668392) internal successors, (12236), 3667 states have internal predecessors, (12236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:33,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3668 states to 3668 states and 12236 transitions. [2022-03-03 20:21:33,103 INFO L78 Accepts]: Start accepts. Automaton has 3668 states and 12236 transitions. Word has length 39 [2022-03-03 20:21:33,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:21:33,103 INFO L470 AbstractCegarLoop]: Abstraction has 3668 states and 12236 transitions. [2022-03-03 20:21:33,103 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:33,103 INFO L276 IsEmpty]: Start isEmpty. Operand 3668 states and 12236 transitions. [2022-03-03 20:21:33,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:21:33,109 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:21:33,109 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:21:33,109 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable156 [2022-03-03 20:21:33,109 INFO L402 AbstractCegarLoop]: === Iteration 158 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:21:33,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:21:33,109 INFO L85 PathProgramCache]: Analyzing trace with hash -1571079706, now seen corresponding path program 158 times [2022-03-03 20:21:33,109 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:21:33,109 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574503591] [2022-03-03 20:21:33,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:21:33,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:21:33,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:21:33,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:21:33,266 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:21:33,266 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574503591] [2022-03-03 20:21:33,266 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574503591] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:21:33,266 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:21:33,266 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:21:33,266 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552627468] [2022-03-03 20:21:33,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:21:33,266 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:21:33,266 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:21:33,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:21:33,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:21:33,266 INFO L87 Difference]: Start difference. First operand 3668 states and 12236 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:33,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:21:33,994 INFO L93 Difference]: Finished difference Result 4079 states and 13527 transitions. [2022-03-03 20:21:33,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 20:21:33,994 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:21:33,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:21:34,003 INFO L225 Difference]: With dead ends: 4079 [2022-03-03 20:21:34,003 INFO L226 Difference]: Without dead ends: 4016 [2022-03-03 20:21:34,003 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 392 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=200, Invalid=1870, Unknown=0, NotChecked=0, Total=2070 [2022-03-03 20:21:34,003 INFO L933 BasicCegarLoop]: 113 mSDtfsCounter, 230 mSDsluCounter, 1351 mSDsCounter, 0 mSdLazyCounter, 1656 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 1143 SdHoareTripleChecker+Invalid, 1696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1656 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 20:21:34,003 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [230 Valid, 1143 Invalid, 1696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1656 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 20:21:34,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4016 states. [2022-03-03 20:21:34,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4016 to 3660. [2022-03-03 20:21:34,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3660 states, 3659 states have (on average 3.337523913637606) internal successors, (12212), 3659 states have internal predecessors, (12212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:34,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3660 states to 3660 states and 12212 transitions. [2022-03-03 20:21:34,056 INFO L78 Accepts]: Start accepts. Automaton has 3660 states and 12212 transitions. Word has length 39 [2022-03-03 20:21:34,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:21:34,056 INFO L470 AbstractCegarLoop]: Abstraction has 3660 states and 12212 transitions. [2022-03-03 20:21:34,056 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:34,056 INFO L276 IsEmpty]: Start isEmpty. Operand 3660 states and 12212 transitions. [2022-03-03 20:21:34,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:21:34,061 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:21:34,061 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:21:34,061 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable157 [2022-03-03 20:21:34,061 INFO L402 AbstractCegarLoop]: === Iteration 159 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:21:34,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:21:34,062 INFO L85 PathProgramCache]: Analyzing trace with hash 921053434, now seen corresponding path program 159 times [2022-03-03 20:21:34,062 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:21:34,062 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534643422] [2022-03-03 20:21:34,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:21:34,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:21:34,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:21:34,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:21:34,223 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:21:34,223 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534643422] [2022-03-03 20:21:34,223 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534643422] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:21:34,223 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:21:34,223 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:21:34,223 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210577655] [2022-03-03 20:21:34,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:21:34,223 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:21:34,223 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:21:34,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:21:34,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:21:34,224 INFO L87 Difference]: Start difference. First operand 3660 states and 12212 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:35,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:21:35,064 INFO L93 Difference]: Finished difference Result 4079 states and 13519 transitions. [2022-03-03 20:21:35,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-03 20:21:35,065 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:21:35,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:21:35,072 INFO L225 Difference]: With dead ends: 4079 [2022-03-03 20:21:35,072 INFO L226 Difference]: Without dead ends: 3936 [2022-03-03 20:21:35,073 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 391 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=197, Invalid=1873, Unknown=0, NotChecked=0, Total=2070 [2022-03-03 20:21:35,073 INFO L933 BasicCegarLoop]: 119 mSDtfsCounter, 222 mSDsluCounter, 1417 mSDsCounter, 0 mSdLazyCounter, 1667 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 1216 SdHoareTripleChecker+Invalid, 1703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1667 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 20:21:35,073 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [222 Valid, 1216 Invalid, 1703 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1667 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 20:21:35,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3936 states. [2022-03-03 20:21:35,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3936 to 3608. [2022-03-03 20:21:35,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3608 states, 3607 states have (on average 3.349043526476296) internal successors, (12080), 3607 states have internal predecessors, (12080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:35,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3608 states to 3608 states and 12080 transitions. [2022-03-03 20:21:35,121 INFO L78 Accepts]: Start accepts. Automaton has 3608 states and 12080 transitions. Word has length 39 [2022-03-03 20:21:35,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:21:35,121 INFO L470 AbstractCegarLoop]: Abstraction has 3608 states and 12080 transitions. [2022-03-03 20:21:35,121 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:35,122 INFO L276 IsEmpty]: Start isEmpty. Operand 3608 states and 12080 transitions. [2022-03-03 20:21:35,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:21:35,126 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:21:35,126 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:21:35,127 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable158 [2022-03-03 20:21:35,127 INFO L402 AbstractCegarLoop]: === Iteration 160 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:21:35,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:21:35,127 INFO L85 PathProgramCache]: Analyzing trace with hash 1947592984, now seen corresponding path program 160 times [2022-03-03 20:21:35,127 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:21:35,127 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503291559] [2022-03-03 20:21:35,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:21:35,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:21:35,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:21:35,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:21:35,279 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:21:35,279 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503291559] [2022-03-03 20:21:35,279 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503291559] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:21:35,279 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:21:35,279 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 20:21:35,279 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419279745] [2022-03-03 20:21:35,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:21:35,279 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-03-03 20:21:35,279 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:21:35,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-03-03 20:21:35,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2022-03-03 20:21:35,280 INFO L87 Difference]: Start difference. First operand 3608 states and 12080 transitions. Second operand has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:36,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:21:36,377 INFO L93 Difference]: Finished difference Result 4099 states and 13671 transitions. [2022-03-03 20:21:36,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 20:21:36,378 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:21:36,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:21:36,386 INFO L225 Difference]: With dead ends: 4099 [2022-03-03 20:21:36,386 INFO L226 Difference]: Without dead ends: 4032 [2022-03-03 20:21:36,386 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 424 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=203, Invalid=1777, Unknown=0, NotChecked=0, Total=1980 [2022-03-03 20:21:36,387 INFO L933 BasicCegarLoop]: 115 mSDtfsCounter, 239 mSDsluCounter, 1106 mSDsCounter, 0 mSdLazyCounter, 1552 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 947 SdHoareTripleChecker+Invalid, 1589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1552 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:21:36,387 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [239 Valid, 947 Invalid, 1589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1552 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:21:36,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4032 states. [2022-03-03 20:21:36,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4032 to 3700. [2022-03-03 20:21:36,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3700 states, 3699 states have (on average 3.346850500135172) internal successors, (12380), 3699 states have internal predecessors, (12380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:36,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3700 states to 3700 states and 12380 transitions. [2022-03-03 20:21:36,442 INFO L78 Accepts]: Start accepts. Automaton has 3700 states and 12380 transitions. Word has length 39 [2022-03-03 20:21:36,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:21:36,442 INFO L470 AbstractCegarLoop]: Abstraction has 3700 states and 12380 transitions. [2022-03-03 20:21:36,442 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:36,442 INFO L276 IsEmpty]: Start isEmpty. Operand 3700 states and 12380 transitions. [2022-03-03 20:21:36,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:21:36,448 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:21:36,448 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:21:36,448 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable159 [2022-03-03 20:21:36,448 INFO L402 AbstractCegarLoop]: === Iteration 161 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:21:36,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:21:36,448 INFO L85 PathProgramCache]: Analyzing trace with hash 227977014, now seen corresponding path program 161 times [2022-03-03 20:21:36,448 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:21:36,448 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881708640] [2022-03-03 20:21:36,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:21:36,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:21:36,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:21:36,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:21:36,660 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:21:36,660 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881708640] [2022-03-03 20:21:36,660 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881708640] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:21:36,660 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:21:36,660 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 20:21:36,660 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664055056] [2022-03-03 20:21:36,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:21:36,660 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-03-03 20:21:36,661 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:21:36,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-03-03 20:21:36,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2022-03-03 20:21:36,661 INFO L87 Difference]: Start difference. First operand 3700 states and 12380 transitions. Second operand has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:37,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:21:37,774 INFO L93 Difference]: Finished difference Result 4203 states and 13962 transitions. [2022-03-03 20:21:37,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-03-03 20:21:37,774 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:21:37,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:21:37,782 INFO L225 Difference]: With dead ends: 4203 [2022-03-03 20:21:37,782 INFO L226 Difference]: Without dead ends: 4160 [2022-03-03 20:21:37,783 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 792 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=291, Invalid=2789, Unknown=0, NotChecked=0, Total=3080 [2022-03-03 20:21:37,783 INFO L933 BasicCegarLoop]: 122 mSDtfsCounter, 329 mSDsluCounter, 1224 mSDsCounter, 0 mSdLazyCounter, 1843 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 329 SdHoareTripleChecker+Valid, 1043 SdHoareTripleChecker+Invalid, 1901 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 1843 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:21:37,783 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [329 Valid, 1043 Invalid, 1901 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 1843 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:21:37,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4160 states. [2022-03-03 20:21:37,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4160 to 3706. [2022-03-03 20:21:37,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3706 states, 3705 states have (on average 3.3449392712550607) internal successors, (12393), 3705 states have internal predecessors, (12393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:37,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3706 states to 3706 states and 12393 transitions. [2022-03-03 20:21:37,839 INFO L78 Accepts]: Start accepts. Automaton has 3706 states and 12393 transitions. Word has length 39 [2022-03-03 20:21:37,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:21:37,839 INFO L470 AbstractCegarLoop]: Abstraction has 3706 states and 12393 transitions. [2022-03-03 20:21:37,839 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:37,839 INFO L276 IsEmpty]: Start isEmpty. Operand 3706 states and 12393 transitions. [2022-03-03 20:21:37,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:21:37,844 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:21:37,844 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:21:37,844 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable160 [2022-03-03 20:21:37,844 INFO L402 AbstractCegarLoop]: === Iteration 162 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:21:37,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:21:37,845 INFO L85 PathProgramCache]: Analyzing trace with hash -1552621288, now seen corresponding path program 162 times [2022-03-03 20:21:37,845 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:21:37,845 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691231487] [2022-03-03 20:21:37,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:21:37,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:21:37,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:21:38,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:21:38,027 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:21:38,027 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691231487] [2022-03-03 20:21:38,027 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691231487] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:21:38,027 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:21:38,027 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 20:21:38,027 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071250694] [2022-03-03 20:21:38,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:21:38,027 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-03-03 20:21:38,027 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:21:38,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-03-03 20:21:38,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2022-03-03 20:21:38,027 INFO L87 Difference]: Start difference. First operand 3706 states and 12393 transitions. Second operand has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:39,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:21:39,024 INFO L93 Difference]: Finished difference Result 4134 states and 13782 transitions. [2022-03-03 20:21:39,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-03-03 20:21:39,025 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:21:39,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:21:39,033 INFO L225 Difference]: With dead ends: 4134 [2022-03-03 20:21:39,033 INFO L226 Difference]: Without dead ends: 4070 [2022-03-03 20:21:39,034 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 751 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=284, Invalid=2686, Unknown=0, NotChecked=0, Total=2970 [2022-03-03 20:21:39,034 INFO L933 BasicCegarLoop]: 118 mSDtfsCounter, 306 mSDsluCounter, 1186 mSDsCounter, 0 mSdLazyCounter, 1775 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 1014 SdHoareTripleChecker+Invalid, 1831 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1775 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:21:39,034 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [306 Valid, 1014 Invalid, 1831 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1775 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:21:39,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4070 states. [2022-03-03 20:21:39,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4070 to 3688. [2022-03-03 20:21:39,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3688 states, 3687 states have (on average 3.3474369406021154) internal successors, (12342), 3687 states have internal predecessors, (12342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:39,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3688 states to 3688 states and 12342 transitions. [2022-03-03 20:21:39,088 INFO L78 Accepts]: Start accepts. Automaton has 3688 states and 12342 transitions. Word has length 39 [2022-03-03 20:21:39,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:21:39,089 INFO L470 AbstractCegarLoop]: Abstraction has 3688 states and 12342 transitions. [2022-03-03 20:21:39,089 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:39,089 INFO L276 IsEmpty]: Start isEmpty. Operand 3688 states and 12342 transitions. [2022-03-03 20:21:39,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:21:39,094 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:21:39,094 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:21:39,094 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable161 [2022-03-03 20:21:39,094 INFO L402 AbstractCegarLoop]: === Iteration 163 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:21:39,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:21:39,095 INFO L85 PathProgramCache]: Analyzing trace with hash -1961436904, now seen corresponding path program 163 times [2022-03-03 20:21:39,095 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:21:39,095 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389094144] [2022-03-03 20:21:39,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:21:39,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:21:39,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:21:39,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:21:39,232 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:21:39,232 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389094144] [2022-03-03 20:21:39,232 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389094144] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:21:39,232 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:21:39,232 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 20:21:39,232 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353129192] [2022-03-03 20:21:39,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:21:39,233 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-03-03 20:21:39,233 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:21:39,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-03-03 20:21:39,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2022-03-03 20:21:39,233 INFO L87 Difference]: Start difference. First operand 3688 states and 12342 transitions. Second operand has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:40,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:21:40,183 INFO L93 Difference]: Finished difference Result 4145 states and 13790 transitions. [2022-03-03 20:21:40,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-03 20:21:40,183 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:21:40,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:21:40,191 INFO L225 Difference]: With dead ends: 4145 [2022-03-03 20:21:40,191 INFO L226 Difference]: Without dead ends: 4015 [2022-03-03 20:21:40,192 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 639 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=255, Invalid=2397, Unknown=0, NotChecked=0, Total=2652 [2022-03-03 20:21:40,192 INFO L933 BasicCegarLoop]: 130 mSDtfsCounter, 288 mSDsluCounter, 1265 mSDsCounter, 0 mSdLazyCounter, 1912 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 1074 SdHoareTripleChecker+Invalid, 1962 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 1912 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:21:40,192 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [288 Valid, 1074 Invalid, 1962 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 1912 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:21:40,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4015 states. [2022-03-03 20:21:40,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4015 to 3664. [2022-03-03 20:21:40,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3664 states, 3663 states have (on average 3.3497133497133498) internal successors, (12270), 3663 states have internal predecessors, (12270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:40,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3664 states to 3664 states and 12270 transitions. [2022-03-03 20:21:40,268 INFO L78 Accepts]: Start accepts. Automaton has 3664 states and 12270 transitions. Word has length 39 [2022-03-03 20:21:40,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:21:40,268 INFO L470 AbstractCegarLoop]: Abstraction has 3664 states and 12270 transitions. [2022-03-03 20:21:40,269 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:40,269 INFO L276 IsEmpty]: Start isEmpty. Operand 3664 states and 12270 transitions. [2022-03-03 20:21:40,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:21:40,274 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:21:40,274 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:21:40,274 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable162 [2022-03-03 20:21:40,274 INFO L402 AbstractCegarLoop]: === Iteration 164 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:21:40,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:21:40,274 INFO L85 PathProgramCache]: Analyzing trace with hash -123485052, now seen corresponding path program 164 times [2022-03-03 20:21:40,274 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:21:40,274 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701065745] [2022-03-03 20:21:40,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:21:40,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:21:40,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:21:40,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:21:40,421 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:21:40,421 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701065745] [2022-03-03 20:21:40,421 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701065745] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:21:40,421 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:21:40,421 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:21:40,421 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609475288] [2022-03-03 20:21:40,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:21:40,422 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:21:40,422 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:21:40,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:21:40,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:21:40,422 INFO L87 Difference]: Start difference. First operand 3664 states and 12270 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:41,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:21:41,300 INFO L93 Difference]: Finished difference Result 4129 states and 13740 transitions. [2022-03-03 20:21:41,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-03 20:21:41,300 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:21:41,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:21:41,308 INFO L225 Difference]: With dead ends: 4129 [2022-03-03 20:21:41,308 INFO L226 Difference]: Without dead ends: 4062 [2022-03-03 20:21:41,309 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 609 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=258, Invalid=2394, Unknown=0, NotChecked=0, Total=2652 [2022-03-03 20:21:41,309 INFO L933 BasicCegarLoop]: 121 mSDtfsCounter, 261 mSDsluCounter, 1255 mSDsCounter, 0 mSdLazyCounter, 1704 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 1093 SdHoareTripleChecker+Invalid, 1757 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 1704 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 20:21:41,309 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [261 Valid, 1093 Invalid, 1757 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 1704 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 20:21:41,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4062 states. [2022-03-03 20:21:41,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4062 to 3680. [2022-03-03 20:21:41,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3680 states, 3679 states have (on average 3.3460179396575156) internal successors, (12310), 3679 states have internal predecessors, (12310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:41,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3680 states to 3680 states and 12310 transitions. [2022-03-03 20:21:41,362 INFO L78 Accepts]: Start accepts. Automaton has 3680 states and 12310 transitions. Word has length 39 [2022-03-03 20:21:41,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:21:41,362 INFO L470 AbstractCegarLoop]: Abstraction has 3680 states and 12310 transitions. [2022-03-03 20:21:41,362 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:41,362 INFO L276 IsEmpty]: Start isEmpty. Operand 3680 states and 12310 transitions. [2022-03-03 20:21:41,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:21:41,367 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:21:41,367 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:21:41,367 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable163 [2022-03-03 20:21:41,367 INFO L402 AbstractCegarLoop]: === Iteration 165 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:21:41,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:21:41,368 INFO L85 PathProgramCache]: Analyzing trace with hash -1843101022, now seen corresponding path program 165 times [2022-03-03 20:21:41,368 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:21:41,368 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003475355] [2022-03-03 20:21:41,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:21:41,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:21:41,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:21:41,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:21:41,517 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:21:41,517 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003475355] [2022-03-03 20:21:41,517 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003475355] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:21:41,517 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:21:41,517 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:21:41,517 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869012768] [2022-03-03 20:21:41,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:21:41,517 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:21:41,517 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:21:41,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:21:41,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:21:41,517 INFO L87 Difference]: Start difference. First operand 3680 states and 12310 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:42,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:21:42,706 INFO L93 Difference]: Finished difference Result 4266 states and 14097 transitions. [2022-03-03 20:21:42,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-03-03 20:21:42,707 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:21:42,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:21:42,716 INFO L225 Difference]: With dead ends: 4266 [2022-03-03 20:21:42,716 INFO L226 Difference]: Without dead ends: 4223 [2022-03-03 20:21:42,716 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1041 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=352, Invalid=3554, Unknown=0, NotChecked=0, Total=3906 [2022-03-03 20:21:42,717 INFO L933 BasicCegarLoop]: 127 mSDtfsCounter, 351 mSDsluCounter, 1386 mSDsCounter, 0 mSdLazyCounter, 2011 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 351 SdHoareTripleChecker+Valid, 1193 SdHoareTripleChecker+Invalid, 2085 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 2011 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:21:42,717 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [351 Valid, 1193 Invalid, 2085 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 2011 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:21:42,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4223 states. [2022-03-03 20:21:42,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4223 to 3686. [2022-03-03 20:21:42,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3686 states, 3685 states have (on average 3.344097693351425) internal successors, (12323), 3685 states have internal predecessors, (12323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:42,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3686 states to 3686 states and 12323 transitions. [2022-03-03 20:21:42,781 INFO L78 Accepts]: Start accepts. Automaton has 3686 states and 12323 transitions. Word has length 39 [2022-03-03 20:21:42,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:21:42,781 INFO L470 AbstractCegarLoop]: Abstraction has 3686 states and 12323 transitions. [2022-03-03 20:21:42,781 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:42,781 INFO L276 IsEmpty]: Start isEmpty. Operand 3686 states and 12323 transitions. [2022-03-03 20:21:42,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:21:42,788 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:21:42,788 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:21:42,788 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable164 [2022-03-03 20:21:42,788 INFO L402 AbstractCegarLoop]: === Iteration 166 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:21:42,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:21:42,788 INFO L85 PathProgramCache]: Analyzing trace with hash 671267972, now seen corresponding path program 166 times [2022-03-03 20:21:42,788 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:21:42,789 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124523479] [2022-03-03 20:21:42,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:21:42,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:21:42,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:21:42,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:21:42,955 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:21:42,956 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124523479] [2022-03-03 20:21:42,956 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124523479] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:21:42,956 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:21:42,956 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:21:42,956 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804181562] [2022-03-03 20:21:42,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:21:42,956 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:21:42,956 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:21:42,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:21:42,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:21:42,956 INFO L87 Difference]: Start difference. First operand 3686 states and 12323 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:44,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:21:44,564 INFO L93 Difference]: Finished difference Result 4197 states and 13917 transitions. [2022-03-03 20:21:44,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-03-03 20:21:44,564 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:21:44,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:21:44,572 INFO L225 Difference]: With dead ends: 4197 [2022-03-03 20:21:44,572 INFO L226 Difference]: Without dead ends: 4133 [2022-03-03 20:21:44,573 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 910 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=325, Invalid=3215, Unknown=0, NotChecked=0, Total=3540 [2022-03-03 20:21:44,573 INFO L933 BasicCegarLoop]: 120 mSDtfsCounter, 337 mSDsluCounter, 1330 mSDsCounter, 0 mSdLazyCounter, 1931 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 337 SdHoareTripleChecker+Valid, 1142 SdHoareTripleChecker+Invalid, 2001 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 1931 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-03 20:21:44,573 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [337 Valid, 1142 Invalid, 2001 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 1931 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-03 20:21:44,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4133 states. [2022-03-03 20:21:44,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4133 to 3668. [2022-03-03 20:21:44,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3668 states, 3667 states have (on average 3.348786473956913) internal successors, (12280), 3667 states have internal predecessors, (12280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:44,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3668 states to 3668 states and 12280 transitions. [2022-03-03 20:21:44,626 INFO L78 Accepts]: Start accepts. Automaton has 3668 states and 12280 transitions. Word has length 39 [2022-03-03 20:21:44,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:21:44,626 INFO L470 AbstractCegarLoop]: Abstraction has 3668 states and 12280 transitions. [2022-03-03 20:21:44,626 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:44,627 INFO L276 IsEmpty]: Start isEmpty. Operand 3668 states and 12280 transitions. [2022-03-03 20:21:44,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:21:44,632 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:21:44,632 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:21:44,632 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable165 [2022-03-03 20:21:44,632 INFO L402 AbstractCegarLoop]: === Iteration 167 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:21:44,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:21:44,632 INFO L85 PathProgramCache]: Analyzing trace with hash 1291702372, now seen corresponding path program 167 times [2022-03-03 20:21:44,632 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:21:44,632 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566515008] [2022-03-03 20:21:44,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:21:44,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:21:44,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:21:44,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:21:44,860 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:21:44,860 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566515008] [2022-03-03 20:21:44,860 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566515008] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:21:44,860 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:21:44,861 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:21:44,861 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33991993] [2022-03-03 20:21:44,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:21:44,861 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:21:44,861 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:21:44,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:21:44,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:21:44,861 INFO L87 Difference]: Start difference. First operand 3668 states and 12280 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:45,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:21:45,948 INFO L93 Difference]: Finished difference Result 4015 states and 13375 transitions. [2022-03-03 20:21:45,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 20:21:45,948 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:21:45,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:21:45,956 INFO L225 Difference]: With dead ends: 4015 [2022-03-03 20:21:45,956 INFO L226 Difference]: Without dead ends: 3948 [2022-03-03 20:21:45,956 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 418 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=211, Invalid=1859, Unknown=0, NotChecked=0, Total=2070 [2022-03-03 20:21:45,956 INFO L933 BasicCegarLoop]: 104 mSDtfsCounter, 223 mSDsluCounter, 1119 mSDsCounter, 0 mSdLazyCounter, 1560 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 930 SdHoareTripleChecker+Invalid, 1599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1560 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:21:45,957 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [223 Valid, 930 Invalid, 1599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1560 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:21:45,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3948 states. [2022-03-03 20:21:45,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3948 to 3676. [2022-03-03 20:21:45,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3676 states, 3675 states have (on average 3.3458503401360544) internal successors, (12296), 3675 states have internal predecessors, (12296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:46,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3676 states to 3676 states and 12296 transitions. [2022-03-03 20:21:46,005 INFO L78 Accepts]: Start accepts. Automaton has 3676 states and 12296 transitions. Word has length 39 [2022-03-03 20:21:46,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:21:46,005 INFO L470 AbstractCegarLoop]: Abstraction has 3676 states and 12296 transitions. [2022-03-03 20:21:46,005 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:46,005 INFO L276 IsEmpty]: Start isEmpty. Operand 3676 states and 12296 transitions. [2022-03-03 20:21:46,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:21:46,010 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:21:46,010 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:21:46,010 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable166 [2022-03-03 20:21:46,010 INFO L402 AbstractCegarLoop]: === Iteration 168 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:21:46,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:21:46,010 INFO L85 PathProgramCache]: Analyzing trace with hash 1161107524, now seen corresponding path program 168 times [2022-03-03 20:21:46,010 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:21:46,010 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794567738] [2022-03-03 20:21:46,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:21:46,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:21:46,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:21:46,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:21:46,160 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:21:46,160 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794567738] [2022-03-03 20:21:46,160 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794567738] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:21:46,160 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:21:46,160 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:21:46,160 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024800253] [2022-03-03 20:21:46,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:21:46,160 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:21:46,160 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:21:46,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:21:46,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:21:46,161 INFO L87 Difference]: Start difference. First operand 3676 states and 12296 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:47,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:21:47,038 INFO L93 Difference]: Finished difference Result 4003 states and 13335 transitions. [2022-03-03 20:21:47,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 20:21:47,039 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:21:47,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:21:47,046 INFO L225 Difference]: With dead ends: 4003 [2022-03-03 20:21:47,046 INFO L226 Difference]: Without dead ends: 3940 [2022-03-03 20:21:47,047 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 447 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=217, Invalid=1945, Unknown=0, NotChecked=0, Total=2162 [2022-03-03 20:21:47,047 INFO L933 BasicCegarLoop]: 104 mSDtfsCounter, 237 mSDsluCounter, 1118 mSDsCounter, 0 mSdLazyCounter, 1546 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 941 SdHoareTripleChecker+Invalid, 1586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 20:21:47,047 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [237 Valid, 941 Invalid, 1586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1546 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 20:21:47,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3940 states. [2022-03-03 20:21:47,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3940 to 3668. [2022-03-03 20:21:47,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3668 states, 3667 states have (on average 3.347695664030543) internal successors, (12276), 3667 states have internal predecessors, (12276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:47,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3668 states to 3668 states and 12276 transitions. [2022-03-03 20:21:47,097 INFO L78 Accepts]: Start accepts. Automaton has 3668 states and 12276 transitions. Word has length 39 [2022-03-03 20:21:47,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:21:47,097 INFO L470 AbstractCegarLoop]: Abstraction has 3668 states and 12276 transitions. [2022-03-03 20:21:47,097 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:47,097 INFO L276 IsEmpty]: Start isEmpty. Operand 3668 states and 12276 transitions. [2022-03-03 20:21:47,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:21:47,102 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:21:47,102 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:21:47,102 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable167 [2022-03-03 20:21:47,102 INFO L402 AbstractCegarLoop]: === Iteration 169 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:21:47,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:21:47,103 INFO L85 PathProgramCache]: Analyzing trace with hash 1025428932, now seen corresponding path program 169 times [2022-03-03 20:21:47,103 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:21:47,103 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728880510] [2022-03-03 20:21:47,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:21:47,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:21:47,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:21:47,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:21:47,391 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:21:47,392 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728880510] [2022-03-03 20:21:47,392 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728880510] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:21:47,392 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:21:47,392 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:21:47,392 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703612546] [2022-03-03 20:21:47,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:21:47,392 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:21:47,392 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:21:47,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:21:47,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:21:47,392 INFO L87 Difference]: Start difference. First operand 3668 states and 12276 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:48,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:21:48,700 INFO L93 Difference]: Finished difference Result 4137 states and 13670 transitions. [2022-03-03 20:21:48,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-03-03 20:21:48,701 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:21:48,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:21:48,708 INFO L225 Difference]: With dead ends: 4137 [2022-03-03 20:21:48,708 INFO L226 Difference]: Without dead ends: 4094 [2022-03-03 20:21:48,709 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 826 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=314, Invalid=2992, Unknown=0, NotChecked=0, Total=3306 [2022-03-03 20:21:48,709 INFO L933 BasicCegarLoop]: 105 mSDtfsCounter, 320 mSDsluCounter, 1183 mSDsCounter, 0 mSdLazyCounter, 1777 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 320 SdHoareTripleChecker+Valid, 973 SdHoareTripleChecker+Invalid, 1839 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1777 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:21:48,709 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [320 Valid, 973 Invalid, 1839 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 1777 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:21:48,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4094 states. [2022-03-03 20:21:48,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4094 to 3676. [2022-03-03 20:21:48,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3676 states, 3675 states have (on average 3.3458503401360544) internal successors, (12296), 3675 states have internal predecessors, (12296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:48,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3676 states to 3676 states and 12296 transitions. [2022-03-03 20:21:48,758 INFO L78 Accepts]: Start accepts. Automaton has 3676 states and 12296 transitions. Word has length 39 [2022-03-03 20:21:48,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:21:48,759 INFO L470 AbstractCegarLoop]: Abstraction has 3676 states and 12296 transitions. [2022-03-03 20:21:48,759 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:48,759 INFO L276 IsEmpty]: Start isEmpty. Operand 3676 states and 12296 transitions. [2022-03-03 20:21:48,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:21:48,764 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:21:48,764 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:21:48,764 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable168 [2022-03-03 20:21:48,765 INFO L402 AbstractCegarLoop]: === Iteration 170 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:21:48,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:21:48,765 INFO L85 PathProgramCache]: Analyzing trace with hash -755169370, now seen corresponding path program 170 times [2022-03-03 20:21:48,765 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:21:48,765 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828241962] [2022-03-03 20:21:48,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:21:48,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:21:48,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:21:48,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:21:48,993 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:21:48,993 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828241962] [2022-03-03 20:21:48,993 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828241962] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:21:48,993 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:21:48,993 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:21:48,993 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060599256] [2022-03-03 20:21:48,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:21:48,993 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:21:48,993 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:21:48,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:21:48,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:21:48,994 INFO L87 Difference]: Start difference. First operand 3676 states and 12296 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:50,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:21:50,060 INFO L93 Difference]: Finished difference Result 4125 states and 13632 transitions. [2022-03-03 20:21:50,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-03-03 20:21:50,060 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:21:50,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:21:50,068 INFO L225 Difference]: With dead ends: 4125 [2022-03-03 20:21:50,068 INFO L226 Difference]: Without dead ends: 4073 [2022-03-03 20:21:50,069 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 786 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=306, Invalid=2886, Unknown=0, NotChecked=0, Total=3192 [2022-03-03 20:21:50,069 INFO L933 BasicCegarLoop]: 103 mSDtfsCounter, 318 mSDsluCounter, 1159 mSDsCounter, 0 mSdLazyCounter, 1748 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 318 SdHoareTripleChecker+Valid, 960 SdHoareTripleChecker+Invalid, 1806 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 1748 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:21:50,069 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [318 Valid, 960 Invalid, 1806 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 1748 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:21:50,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4073 states. [2022-03-03 20:21:50,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4073 to 3668. [2022-03-03 20:21:50,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3668 states, 3667 states have (on average 3.347695664030543) internal successors, (12276), 3667 states have internal predecessors, (12276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:50,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3668 states to 3668 states and 12276 transitions. [2022-03-03 20:21:50,123 INFO L78 Accepts]: Start accepts. Automaton has 3668 states and 12276 transitions. Word has length 39 [2022-03-03 20:21:50,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:21:50,123 INFO L470 AbstractCegarLoop]: Abstraction has 3668 states and 12276 transitions. [2022-03-03 20:21:50,123 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:50,123 INFO L276 IsEmpty]: Start isEmpty. Operand 3668 states and 12276 transitions. [2022-03-03 20:21:50,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:21:50,128 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:21:50,128 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:21:50,128 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable169 [2022-03-03 20:21:50,128 INFO L402 AbstractCegarLoop]: === Iteration 171 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:21:50,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:21:50,129 INFO L85 PathProgramCache]: Analyzing trace with hash 1943912502, now seen corresponding path program 171 times [2022-03-03 20:21:50,129 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:21:50,129 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521484404] [2022-03-03 20:21:50,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:21:50,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:21:50,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:21:50,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:21:50,301 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:21:50,301 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521484404] [2022-03-03 20:21:50,301 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521484404] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:21:50,301 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:21:50,301 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:21:50,301 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123282165] [2022-03-03 20:21:50,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:21:50,301 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:21:50,301 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:21:50,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:21:50,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:21:50,302 INFO L87 Difference]: Start difference. First operand 3668 states and 12276 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:51,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:21:51,113 INFO L93 Difference]: Finished difference Result 4090 states and 13523 transitions. [2022-03-03 20:21:51,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-03-03 20:21:51,114 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:21:51,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:21:51,121 INFO L225 Difference]: With dead ends: 4090 [2022-03-03 20:21:51,121 INFO L226 Difference]: Without dead ends: 4035 [2022-03-03 20:21:51,122 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 510 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=239, Invalid=2113, Unknown=0, NotChecked=0, Total=2352 [2022-03-03 20:21:51,122 INFO L933 BasicCegarLoop]: 103 mSDtfsCounter, 266 mSDsluCounter, 1148 mSDsCounter, 0 mSdLazyCounter, 1601 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 266 SdHoareTripleChecker+Valid, 933 SdHoareTripleChecker+Invalid, 1644 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 1601 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 20:21:51,122 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [266 Valid, 933 Invalid, 1644 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 1601 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 20:21:51,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4035 states. [2022-03-03 20:21:51,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4035 to 3670. [2022-03-03 20:21:51,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3670 states, 3669 states have (on average 3.3466884709730174) internal successors, (12279), 3669 states have internal predecessors, (12279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:51,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3670 states to 3670 states and 12279 transitions. [2022-03-03 20:21:51,172 INFO L78 Accepts]: Start accepts. Automaton has 3670 states and 12279 transitions. Word has length 39 [2022-03-03 20:21:51,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:21:51,172 INFO L470 AbstractCegarLoop]: Abstraction has 3670 states and 12279 transitions. [2022-03-03 20:21:51,172 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:51,173 INFO L276 IsEmpty]: Start isEmpty. Operand 3670 states and 12279 transitions. [2022-03-03 20:21:51,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:21:51,177 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:21:51,177 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:21:51,178 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable170 [2022-03-03 20:21:51,178 INFO L402 AbstractCegarLoop]: === Iteration 172 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:21:51,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:21:51,178 INFO L85 PathProgramCache]: Analyzing trace with hash -1178402572, now seen corresponding path program 172 times [2022-03-03 20:21:51,178 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:21:51,178 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527955109] [2022-03-03 20:21:51,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:21:51,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:21:51,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:21:51,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:21:51,322 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:21:51,322 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527955109] [2022-03-03 20:21:51,322 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527955109] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:21:51,322 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:21:51,322 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:21:51,322 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097713231] [2022-03-03 20:21:51,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:21:51,322 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:21:51,323 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:21:51,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:21:51,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:21:51,323 INFO L87 Difference]: Start difference. First operand 3670 states and 12279 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:52,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:21:52,061 INFO L93 Difference]: Finished difference Result 4000 states and 13325 transitions. [2022-03-03 20:21:52,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-03-03 20:21:52,061 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:21:52,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:21:52,069 INFO L225 Difference]: With dead ends: 4000 [2022-03-03 20:21:52,069 INFO L226 Difference]: Without dead ends: 3936 [2022-03-03 20:21:52,069 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 444 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=224, Invalid=1938, Unknown=0, NotChecked=0, Total=2162 [2022-03-03 20:21:52,069 INFO L933 BasicCegarLoop]: 103 mSDtfsCounter, 230 mSDsluCounter, 1136 mSDsCounter, 0 mSdLazyCounter, 1552 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 938 SdHoareTripleChecker+Invalid, 1590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1552 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 20:21:52,070 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [230 Valid, 938 Invalid, 1590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1552 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 20:21:52,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3936 states. [2022-03-03 20:21:52,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3936 to 3664. [2022-03-03 20:21:52,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3664 states, 3663 states have (on average 3.3486213486213487) internal successors, (12266), 3663 states have internal predecessors, (12266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:52,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3664 states to 3664 states and 12266 transitions. [2022-03-03 20:21:52,124 INFO L78 Accepts]: Start accepts. Automaton has 3664 states and 12266 transitions. Word has length 39 [2022-03-03 20:21:52,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:21:52,124 INFO L470 AbstractCegarLoop]: Abstraction has 3664 states and 12266 transitions. [2022-03-03 20:21:52,124 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:52,124 INFO L276 IsEmpty]: Start isEmpty. Operand 3664 states and 12266 transitions. [2022-03-03 20:21:52,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:21:52,129 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:21:52,130 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:21:52,130 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable171 [2022-03-03 20:21:52,130 INFO L402 AbstractCegarLoop]: === Iteration 173 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:21:52,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:21:52,130 INFO L85 PathProgramCache]: Analyzing trace with hash 1063645750, now seen corresponding path program 173 times [2022-03-03 20:21:52,130 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:21:52,130 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838117535] [2022-03-03 20:21:52,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:21:52,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:21:52,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:21:52,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:21:52,322 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:21:52,322 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838117535] [2022-03-03 20:21:52,322 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838117535] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:21:52,322 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:21:52,322 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:21:52,322 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683296466] [2022-03-03 20:21:52,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:21:52,322 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:21:52,322 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:21:52,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:21:52,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:21:52,322 INFO L87 Difference]: Start difference. First operand 3664 states and 12266 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:53,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:21:53,458 INFO L93 Difference]: Finished difference Result 4263 states and 14057 transitions. [2022-03-03 20:21:53,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-03-03 20:21:53,458 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:21:53,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:21:53,466 INFO L225 Difference]: With dead ends: 4263 [2022-03-03 20:21:53,466 INFO L226 Difference]: Without dead ends: 4126 [2022-03-03 20:21:53,466 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 867 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=307, Invalid=3115, Unknown=0, NotChecked=0, Total=3422 [2022-03-03 20:21:53,466 INFO L933 BasicCegarLoop]: 141 mSDtfsCounter, 342 mSDsluCounter, 1518 mSDsCounter, 0 mSdLazyCounter, 2189 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 342 SdHoareTripleChecker+Valid, 1270 SdHoareTripleChecker+Invalid, 2250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 2189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:21:53,466 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [342 Valid, 1270 Invalid, 2250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 2189 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:21:53,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4126 states. [2022-03-03 20:21:53,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4126 to 3668. [2022-03-03 20:21:53,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3668 states, 3667 states have (on average 3.347695664030543) internal successors, (12276), 3667 states have internal predecessors, (12276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:53,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3668 states to 3668 states and 12276 transitions. [2022-03-03 20:21:53,515 INFO L78 Accepts]: Start accepts. Automaton has 3668 states and 12276 transitions. Word has length 39 [2022-03-03 20:21:53,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:21:53,515 INFO L470 AbstractCegarLoop]: Abstraction has 3668 states and 12276 transitions. [2022-03-03 20:21:53,515 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:53,515 INFO L276 IsEmpty]: Start isEmpty. Operand 3668 states and 12276 transitions. [2022-03-03 20:21:53,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:21:53,520 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:21:53,520 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:21:53,520 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable172 [2022-03-03 20:21:53,520 INFO L402 AbstractCegarLoop]: === Iteration 174 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:21:53,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:21:53,521 INFO L85 PathProgramCache]: Analyzing trace with hash -431245150, now seen corresponding path program 174 times [2022-03-03 20:21:53,521 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:21:53,521 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734638292] [2022-03-03 20:21:53,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:21:53,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:21:53,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:21:53,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:21:53,666 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:21:53,666 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734638292] [2022-03-03 20:21:53,666 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734638292] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:21:53,666 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:21:53,666 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:21:53,666 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387210540] [2022-03-03 20:21:53,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:21:53,666 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:21:53,666 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:21:53,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:21:53,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:21:53,666 INFO L87 Difference]: Start difference. First operand 3668 states and 12276 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:54,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:21:54,758 INFO L93 Difference]: Finished difference Result 4241 states and 13923 transitions. [2022-03-03 20:21:54,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-03-03 20:21:54,758 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:21:54,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:21:54,767 INFO L225 Difference]: With dead ends: 4241 [2022-03-03 20:21:54,767 INFO L226 Difference]: Without dead ends: 4177 [2022-03-03 20:21:54,768 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 787 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=299, Invalid=2893, Unknown=0, NotChecked=0, Total=3192 [2022-03-03 20:21:54,783 INFO L933 BasicCegarLoop]: 107 mSDtfsCounter, 320 mSDsluCounter, 1253 mSDsCounter, 0 mSdLazyCounter, 1852 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 320 SdHoareTripleChecker+Valid, 1010 SdHoareTripleChecker+Invalid, 1911 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 1852 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:21:54,783 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [320 Valid, 1010 Invalid, 1911 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 1852 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:21:54,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4177 states. [2022-03-03 20:21:54,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4177 to 3668. [2022-03-03 20:21:54,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3668 states, 3667 states have (on average 3.347695664030543) internal successors, (12276), 3667 states have internal predecessors, (12276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:54,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3668 states to 3668 states and 12276 transitions. [2022-03-03 20:21:54,851 INFO L78 Accepts]: Start accepts. Automaton has 3668 states and 12276 transitions. Word has length 39 [2022-03-03 20:21:54,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:21:54,851 INFO L470 AbstractCegarLoop]: Abstraction has 3668 states and 12276 transitions. [2022-03-03 20:21:54,851 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:54,851 INFO L276 IsEmpty]: Start isEmpty. Operand 3668 states and 12276 transitions. [2022-03-03 20:21:54,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:21:54,856 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:21:54,856 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:21:54,856 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable173 [2022-03-03 20:21:54,857 INFO L402 AbstractCegarLoop]: === Iteration 175 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:21:54,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:21:54,857 INFO L85 PathProgramCache]: Analyzing trace with hash 487238420, now seen corresponding path program 175 times [2022-03-03 20:21:54,857 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:21:54,857 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68991196] [2022-03-03 20:21:54,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:21:54,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:21:54,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:21:55,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:21:55,071 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:21:55,071 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68991196] [2022-03-03 20:21:55,071 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68991196] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:21:55,071 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:21:55,071 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:21:55,071 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547746870] [2022-03-03 20:21:55,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:21:55,071 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:21:55,071 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:21:55,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:21:55,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:21:55,071 INFO L87 Difference]: Start difference. First operand 3668 states and 12276 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:56,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:21:56,287 INFO L93 Difference]: Finished difference Result 4146 states and 13671 transitions. [2022-03-03 20:21:56,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-03 20:21:56,287 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:21:56,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:21:56,295 INFO L225 Difference]: With dead ends: 4146 [2022-03-03 20:21:56,295 INFO L226 Difference]: Without dead ends: 4091 [2022-03-03 20:21:56,296 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 477 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=220, Invalid=2036, Unknown=0, NotChecked=0, Total=2256 [2022-03-03 20:21:56,296 INFO L933 BasicCegarLoop]: 109 mSDtfsCounter, 266 mSDsluCounter, 1285 mSDsCounter, 0 mSdLazyCounter, 1721 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 266 SdHoareTripleChecker+Valid, 1006 SdHoareTripleChecker+Invalid, 1760 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1721 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:21:56,296 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [266 Valid, 1006 Invalid, 1760 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1721 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:21:56,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4091 states. [2022-03-03 20:21:56,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4091 to 3670. [2022-03-03 20:21:56,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3670 states, 3669 states have (on average 3.3466884709730174) internal successors, (12279), 3669 states have internal predecessors, (12279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:56,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3670 states to 3670 states and 12279 transitions. [2022-03-03 20:21:56,347 INFO L78 Accepts]: Start accepts. Automaton has 3670 states and 12279 transitions. Word has length 39 [2022-03-03 20:21:56,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:21:56,348 INFO L470 AbstractCegarLoop]: Abstraction has 3670 states and 12279 transitions. [2022-03-03 20:21:56,348 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:56,348 INFO L276 IsEmpty]: Start isEmpty. Operand 3670 states and 12279 transitions. [2022-03-03 20:21:56,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:21:56,353 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:21:56,353 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:21:56,353 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable174 [2022-03-03 20:21:56,353 INFO L402 AbstractCegarLoop]: === Iteration 176 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:21:56,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:21:56,353 INFO L85 PathProgramCache]: Analyzing trace with hash 1659890642, now seen corresponding path program 176 times [2022-03-03 20:21:56,353 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:21:56,353 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212758766] [2022-03-03 20:21:56,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:21:56,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:21:56,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:21:56,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:21:56,583 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:21:56,583 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212758766] [2022-03-03 20:21:56,583 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212758766] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:21:56,583 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:21:56,583 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:21:56,583 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228775141] [2022-03-03 20:21:56,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:21:56,583 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:21:56,583 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:21:56,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:21:56,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:21:56,584 INFO L87 Difference]: Start difference. First operand 3670 states and 12279 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:57,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:21:57,746 INFO L93 Difference]: Finished difference Result 4116 states and 13610 transitions. [2022-03-03 20:21:57,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-03-03 20:21:57,747 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:21:57,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:21:57,755 INFO L225 Difference]: With dead ends: 4116 [2022-03-03 20:21:57,755 INFO L226 Difference]: Without dead ends: 4056 [2022-03-03 20:21:57,755 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 480 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=223, Invalid=2033, Unknown=0, NotChecked=0, Total=2256 [2022-03-03 20:21:57,755 INFO L933 BasicCegarLoop]: 103 mSDtfsCounter, 276 mSDsluCounter, 1181 mSDsCounter, 0 mSdLazyCounter, 1615 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 947 SdHoareTripleChecker+Invalid, 1657 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 1615 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:21:57,755 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [276 Valid, 947 Invalid, 1657 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 1615 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:21:57,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4056 states. [2022-03-03 20:21:57,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4056 to 3668. [2022-03-03 20:21:57,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3668 states, 3667 states have (on average 3.3471502590673574) internal successors, (12274), 3667 states have internal predecessors, (12274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:57,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3668 states to 3668 states and 12274 transitions. [2022-03-03 20:21:57,809 INFO L78 Accepts]: Start accepts. Automaton has 3668 states and 12274 transitions. Word has length 39 [2022-03-03 20:21:57,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:21:57,809 INFO L470 AbstractCegarLoop]: Abstraction has 3668 states and 12274 transitions. [2022-03-03 20:21:57,809 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:57,809 INFO L276 IsEmpty]: Start isEmpty. Operand 3668 states and 12274 transitions. [2022-03-03 20:21:57,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:21:57,814 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:21:57,814 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:21:57,814 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable175 [2022-03-03 20:21:57,814 INFO L402 AbstractCegarLoop]: === Iteration 177 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:21:57,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:21:57,814 INFO L85 PathProgramCache]: Analyzing trace with hash -419675900, now seen corresponding path program 177 times [2022-03-03 20:21:57,814 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:21:57,815 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808412660] [2022-03-03 20:21:57,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:21:57,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:21:57,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:21:57,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:21:57,955 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:21:57,955 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808412660] [2022-03-03 20:21:57,955 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808412660] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:21:57,955 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:21:57,955 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 20:21:57,955 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074995977] [2022-03-03 20:21:57,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:21:57,955 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-03-03 20:21:57,955 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:21:57,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-03-03 20:21:57,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2022-03-03 20:21:57,956 INFO L87 Difference]: Start difference. First operand 3668 states and 12274 transitions. Second operand has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:58,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:21:58,682 INFO L93 Difference]: Finished difference Result 4027 states and 13397 transitions. [2022-03-03 20:21:58,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-03 20:21:58,682 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:21:58,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:21:58,691 INFO L225 Difference]: With dead ends: 4027 [2022-03-03 20:21:58,691 INFO L226 Difference]: Without dead ends: 3951 [2022-03-03 20:21:58,691 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 391 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=196, Invalid=1696, Unknown=0, NotChecked=0, Total=1892 [2022-03-03 20:21:58,691 INFO L933 BasicCegarLoop]: 104 mSDtfsCounter, 231 mSDsluCounter, 1048 mSDsCounter, 0 mSdLazyCounter, 1470 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 855 SdHoareTripleChecker+Invalid, 1507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 20:21:58,692 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [231 Valid, 855 Invalid, 1507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1470 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 20:21:58,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3951 states. [2022-03-03 20:21:58,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3951 to 3676. [2022-03-03 20:21:58,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3676 states, 3675 states have (on average 3.34421768707483) internal successors, (12290), 3675 states have internal predecessors, (12290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:58,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3676 states to 3676 states and 12290 transitions. [2022-03-03 20:21:58,777 INFO L78 Accepts]: Start accepts. Automaton has 3676 states and 12290 transitions. Word has length 39 [2022-03-03 20:21:58,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:21:58,777 INFO L470 AbstractCegarLoop]: Abstraction has 3676 states and 12290 transitions. [2022-03-03 20:21:58,777 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:58,777 INFO L276 IsEmpty]: Start isEmpty. Operand 3676 states and 12290 transitions. [2022-03-03 20:21:58,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:21:58,783 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:21:58,783 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:21:58,783 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable176 [2022-03-03 20:21:58,783 INFO L402 AbstractCegarLoop]: === Iteration 178 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:21:58,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:21:58,784 INFO L85 PathProgramCache]: Analyzing trace with hash -1437729512, now seen corresponding path program 178 times [2022-03-03 20:21:58,784 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:21:58,784 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258024566] [2022-03-03 20:21:58,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:21:58,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:21:58,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:21:58,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:21:58,931 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:21:58,931 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258024566] [2022-03-03 20:21:58,931 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258024566] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:21:58,931 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:21:58,932 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:21:58,932 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343369150] [2022-03-03 20:21:58,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:21:58,932 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:21:58,932 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:21:58,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:21:58,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:21:58,932 INFO L87 Difference]: Start difference. First operand 3676 states and 12290 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:59,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:21:59,676 INFO L93 Difference]: Finished difference Result 4009 states and 13343 transitions. [2022-03-03 20:21:59,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 20:21:59,676 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:21:59,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:21:59,684 INFO L225 Difference]: With dead ends: 4009 [2022-03-03 20:21:59,685 INFO L226 Difference]: Without dead ends: 3931 [2022-03-03 20:21:59,685 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 448 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=212, Invalid=1950, Unknown=0, NotChecked=0, Total=2162 [2022-03-03 20:21:59,685 INFO L933 BasicCegarLoop]: 104 mSDtfsCounter, 261 mSDsluCounter, 1143 mSDsCounter, 0 mSdLazyCounter, 1556 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 945 SdHoareTripleChecker+Invalid, 1597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1556 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 20:21:59,685 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [261 Valid, 945 Invalid, 1597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1556 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 20:21:59,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3931 states. [2022-03-03 20:21:59,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3931 to 3656. [2022-03-03 20:21:59,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3656 states, 3655 states have (on average 3.3493844049247605) internal successors, (12242), 3655 states have internal predecessors, (12242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:59,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3656 states to 3656 states and 12242 transitions. [2022-03-03 20:21:59,748 INFO L78 Accepts]: Start accepts. Automaton has 3656 states and 12242 transitions. Word has length 39 [2022-03-03 20:21:59,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:21:59,748 INFO L470 AbstractCegarLoop]: Abstraction has 3656 states and 12242 transitions. [2022-03-03 20:21:59,749 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:21:59,749 INFO L276 IsEmpty]: Start isEmpty. Operand 3656 states and 12242 transitions. [2022-03-03 20:21:59,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:21:59,754 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:21:59,754 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:21:59,754 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable177 [2022-03-03 20:21:59,754 INFO L402 AbstractCegarLoop]: === Iteration 179 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:21:59,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:21:59,755 INFO L85 PathProgramCache]: Analyzing trace with hash 446382202, now seen corresponding path program 179 times [2022-03-03 20:21:59,755 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:21:59,755 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312963489] [2022-03-03 20:21:59,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:21:59,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:21:59,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:21:59,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:21:59,915 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:21:59,915 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312963489] [2022-03-03 20:21:59,915 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312963489] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:21:59,915 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:21:59,915 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:21:59,915 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637697519] [2022-03-03 20:21:59,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:21:59,915 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:21:59,915 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:21:59,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:21:59,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:21:59,915 INFO L87 Difference]: Start difference. First operand 3656 states and 12242 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:00,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:22:00,800 INFO L93 Difference]: Finished difference Result 4203 states and 13963 transitions. [2022-03-03 20:22:00,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-03-03 20:22:00,800 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:22:00,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:22:00,809 INFO L225 Difference]: With dead ends: 4203 [2022-03-03 20:22:00,809 INFO L226 Difference]: Without dead ends: 4136 [2022-03-03 20:22:00,810 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 570 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=251, Invalid=2299, Unknown=0, NotChecked=0, Total=2550 [2022-03-03 20:22:00,810 INFO L933 BasicCegarLoop]: 126 mSDtfsCounter, 268 mSDsluCounter, 1329 mSDsCounter, 0 mSdLazyCounter, 1830 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 1171 SdHoareTripleChecker+Invalid, 1879 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1830 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:22:00,810 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [268 Valid, 1171 Invalid, 1879 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1830 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:22:00,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4136 states. [2022-03-03 20:22:00,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4136 to 3696. [2022-03-03 20:22:00,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3696 states, 3695 states have (on average 3.346955345060893) internal successors, (12367), 3695 states have internal predecessors, (12367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:00,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3696 states to 3696 states and 12367 transitions. [2022-03-03 20:22:00,902 INFO L78 Accepts]: Start accepts. Automaton has 3696 states and 12367 transitions. Word has length 39 [2022-03-03 20:22:00,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:22:00,902 INFO L470 AbstractCegarLoop]: Abstraction has 3696 states and 12367 transitions. [2022-03-03 20:22:00,902 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:00,902 INFO L276 IsEmpty]: Start isEmpty. Operand 3696 states and 12367 transitions. [2022-03-03 20:22:00,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:22:00,908 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:22:00,908 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:22:00,908 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable178 [2022-03-03 20:22:00,908 INFO L402 AbstractCegarLoop]: === Iteration 180 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:22:00,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:22:00,908 INFO L85 PathProgramCache]: Analyzing trace with hash -1273233768, now seen corresponding path program 180 times [2022-03-03 20:22:00,908 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:22:00,908 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706079347] [2022-03-03 20:22:00,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:22:00,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:22:00,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:22:01,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:22:01,090 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:22:01,090 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706079347] [2022-03-03 20:22:01,090 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706079347] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:22:01,090 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:22:01,090 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:22:01,090 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890796370] [2022-03-03 20:22:01,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:22:01,090 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:22:01,090 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:22:01,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:22:01,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:22:01,091 INFO L87 Difference]: Start difference. First operand 3696 states and 12367 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:02,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:22:02,352 INFO L93 Difference]: Finished difference Result 4340 states and 14320 transitions. [2022-03-03 20:22:02,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-03-03 20:22:02,352 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:22:02,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:22:02,361 INFO L225 Difference]: With dead ends: 4340 [2022-03-03 20:22:02,361 INFO L226 Difference]: Without dead ends: 4297 [2022-03-03 20:22:02,362 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 947 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=332, Invalid=3328, Unknown=0, NotChecked=0, Total=3660 [2022-03-03 20:22:02,362 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 345 mSDsluCounter, 1466 mSDsCounter, 0 mSdLazyCounter, 2117 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 345 SdHoareTripleChecker+Valid, 1278 SdHoareTripleChecker+Invalid, 2184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 2117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:22:02,362 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [345 Valid, 1278 Invalid, 2184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 2117 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:22:02,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4297 states. [2022-03-03 20:22:02,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4297 to 3702. [2022-03-03 20:22:02,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3702 states, 3701 states have (on average 3.3450418805728184) internal successors, (12380), 3701 states have internal predecessors, (12380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:02,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3702 states to 3702 states and 12380 transitions. [2022-03-03 20:22:02,422 INFO L78 Accepts]: Start accepts. Automaton has 3702 states and 12380 transitions. Word has length 39 [2022-03-03 20:22:02,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:22:02,422 INFO L470 AbstractCegarLoop]: Abstraction has 3702 states and 12380 transitions. [2022-03-03 20:22:02,422 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:02,422 INFO L276 IsEmpty]: Start isEmpty. Operand 3702 states and 12380 transitions. [2022-03-03 20:22:02,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:22:02,428 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:22:02,428 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:22:02,428 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable179 [2022-03-03 20:22:02,428 INFO L402 AbstractCegarLoop]: === Iteration 181 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:22:02,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:22:02,428 INFO L85 PathProgramCache]: Analyzing trace with hash 1241135226, now seen corresponding path program 181 times [2022-03-03 20:22:02,428 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:22:02,428 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259591436] [2022-03-03 20:22:02,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:22:02,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:22:02,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:22:02,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:22:02,586 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:22:02,586 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259591436] [2022-03-03 20:22:02,586 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259591436] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:22:02,586 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:22:02,586 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:22:02,586 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339482264] [2022-03-03 20:22:02,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:22:02,586 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:22:02,586 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:22:02,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:22:02,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:22:02,586 INFO L87 Difference]: Start difference. First operand 3702 states and 12380 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:03,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:22:03,735 INFO L93 Difference]: Finished difference Result 4271 states and 14140 transitions. [2022-03-03 20:22:03,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-03-03 20:22:03,736 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:22:03,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:22:03,744 INFO L225 Difference]: With dead ends: 4271 [2022-03-03 20:22:03,744 INFO L226 Difference]: Without dead ends: 4207 [2022-03-03 20:22:03,745 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 862 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=314, Invalid=3108, Unknown=0, NotChecked=0, Total=3422 [2022-03-03 20:22:03,745 INFO L933 BasicCegarLoop]: 126 mSDtfsCounter, 333 mSDsluCounter, 1424 mSDsCounter, 0 mSdLazyCounter, 2034 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 333 SdHoareTripleChecker+Valid, 1245 SdHoareTripleChecker+Invalid, 2098 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 2034 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:22:03,745 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [333 Valid, 1245 Invalid, 2098 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 2034 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:22:03,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4207 states. [2022-03-03 20:22:03,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4207 to 3684. [2022-03-03 20:22:03,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3684 states, 3683 states have (on average 3.3497149063263643) internal successors, (12337), 3683 states have internal predecessors, (12337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:03,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3684 states to 3684 states and 12337 transitions. [2022-03-03 20:22:03,798 INFO L78 Accepts]: Start accepts. Automaton has 3684 states and 12337 transitions. Word has length 39 [2022-03-03 20:22:03,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:22:03,798 INFO L470 AbstractCegarLoop]: Abstraction has 3684 states and 12337 transitions. [2022-03-03 20:22:03,798 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:03,798 INFO L276 IsEmpty]: Start isEmpty. Operand 3684 states and 12337 transitions. [2022-03-03 20:22:03,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:22:03,803 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:22:03,803 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:22:03,803 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable180 [2022-03-03 20:22:03,803 INFO L402 AbstractCegarLoop]: === Iteration 182 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:22:03,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:22:03,804 INFO L85 PathProgramCache]: Analyzing trace with hash 1861569626, now seen corresponding path program 182 times [2022-03-03 20:22:03,804 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:22:03,804 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842556902] [2022-03-03 20:22:03,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:22:03,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:22:03,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:22:03,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:22:03,994 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:22:03,994 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842556902] [2022-03-03 20:22:03,994 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842556902] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:22:03,994 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:22:03,994 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:22:03,994 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686102304] [2022-03-03 20:22:03,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:22:03,994 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:22:03,994 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:22:04,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:22:04,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:22:04,002 INFO L87 Difference]: Start difference. First operand 3684 states and 12337 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:04,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:22:04,994 INFO L93 Difference]: Finished difference Result 4183 states and 13891 transitions. [2022-03-03 20:22:04,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 20:22:04,994 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:22:04,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:22:05,002 INFO L225 Difference]: With dead ends: 4183 [2022-03-03 20:22:05,003 INFO L226 Difference]: Without dead ends: 4116 [2022-03-03 20:22:05,003 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 415 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=212, Invalid=1858, Unknown=0, NotChecked=0, Total=2070 [2022-03-03 20:22:05,003 INFO L933 BasicCegarLoop]: 108 mSDtfsCounter, 237 mSDsluCounter, 1180 mSDsCounter, 0 mSdLazyCounter, 1661 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 1001 SdHoareTripleChecker+Invalid, 1697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1661 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:22:05,003 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [237 Valid, 1001 Invalid, 1697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1661 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:22:05,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4116 states. [2022-03-03 20:22:05,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4116 to 3712. [2022-03-03 20:22:05,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3712 states, 3711 states have (on average 3.345998383185125) internal successors, (12417), 3711 states have internal predecessors, (12417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:05,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3712 states to 3712 states and 12417 transitions. [2022-03-03 20:22:05,058 INFO L78 Accepts]: Start accepts. Automaton has 3712 states and 12417 transitions. Word has length 39 [2022-03-03 20:22:05,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:22:05,058 INFO L470 AbstractCegarLoop]: Abstraction has 3712 states and 12417 transitions. [2022-03-03 20:22:05,058 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:05,058 INFO L276 IsEmpty]: Start isEmpty. Operand 3712 states and 12417 transitions. [2022-03-03 20:22:05,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:22:05,064 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:22:05,064 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:22:05,064 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable181 [2022-03-03 20:22:05,064 INFO L402 AbstractCegarLoop]: === Iteration 183 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:22:05,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:22:05,064 INFO L85 PathProgramCache]: Analyzing trace with hash 1730974778, now seen corresponding path program 183 times [2022-03-03 20:22:05,064 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:22:05,064 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275384810] [2022-03-03 20:22:05,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:22:05,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:22:05,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:22:05,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:22:05,278 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:22:05,278 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275384810] [2022-03-03 20:22:05,278 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275384810] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:22:05,278 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:22:05,278 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:22:05,279 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497464329] [2022-03-03 20:22:05,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:22:05,279 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:22:05,279 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:22:05,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:22:05,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:22:05,279 INFO L87 Difference]: Start difference. First operand 3712 states and 12417 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:06,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:22:06,197 INFO L93 Difference]: Finished difference Result 4171 states and 13851 transitions. [2022-03-03 20:22:06,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-03 20:22:06,198 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:22:06,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:22:06,205 INFO L225 Difference]: With dead ends: 4171 [2022-03-03 20:22:06,206 INFO L226 Difference]: Without dead ends: 4108 [2022-03-03 20:22:06,206 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 477 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=226, Invalid=2030, Unknown=0, NotChecked=0, Total=2256 [2022-03-03 20:22:06,206 INFO L933 BasicCegarLoop]: 109 mSDtfsCounter, 243 mSDsluCounter, 1202 mSDsCounter, 0 mSdLazyCounter, 1674 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 1025 SdHoareTripleChecker+Invalid, 1715 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:22:06,206 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [243 Valid, 1025 Invalid, 1715 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1674 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:22:06,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4108 states. [2022-03-03 20:22:06,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4108 to 3704. [2022-03-03 20:22:06,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3704 states, 3703 states have (on average 3.347826086956522) internal successors, (12397), 3703 states have internal predecessors, (12397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:06,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3704 states to 3704 states and 12397 transitions. [2022-03-03 20:22:06,259 INFO L78 Accepts]: Start accepts. Automaton has 3704 states and 12397 transitions. Word has length 39 [2022-03-03 20:22:06,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:22:06,259 INFO L470 AbstractCegarLoop]: Abstraction has 3704 states and 12397 transitions. [2022-03-03 20:22:06,260 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:06,260 INFO L276 IsEmpty]: Start isEmpty. Operand 3704 states and 12397 transitions. [2022-03-03 20:22:06,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:22:06,265 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:22:06,265 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:22:06,265 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable182 [2022-03-03 20:22:06,265 INFO L402 AbstractCegarLoop]: === Iteration 184 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:22:06,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:22:06,266 INFO L85 PathProgramCache]: Analyzing trace with hash 1595296186, now seen corresponding path program 184 times [2022-03-03 20:22:06,266 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:22:06,266 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417257109] [2022-03-03 20:22:06,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:22:06,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:22:06,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:22:06,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:22:06,489 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:22:06,489 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417257109] [2022-03-03 20:22:06,489 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417257109] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:22:06,489 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:22:06,489 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:22:06,489 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141490952] [2022-03-03 20:22:06,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:22:06,489 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:22:06,489 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:22:06,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:22:06,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:22:06,490 INFO L87 Difference]: Start difference. First operand 3704 states and 12397 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:07,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:22:07,920 INFO L93 Difference]: Finished difference Result 4334 states and 14240 transitions. [2022-03-03 20:22:07,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-03-03 20:22:07,921 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:22:07,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:22:07,929 INFO L225 Difference]: With dead ends: 4334 [2022-03-03 20:22:07,929 INFO L226 Difference]: Without dead ends: 4291 [2022-03-03 20:22:07,930 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 863 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=323, Invalid=3099, Unknown=0, NotChecked=0, Total=3422 [2022-03-03 20:22:07,930 INFO L933 BasicCegarLoop]: 110 mSDtfsCounter, 326 mSDsluCounter, 1296 mSDsCounter, 0 mSdLazyCounter, 1887 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 326 SdHoareTripleChecker+Valid, 1085 SdHoareTripleChecker+Invalid, 1948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 1887 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-03 20:22:07,930 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [326 Valid, 1085 Invalid, 1948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 1887 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-03 20:22:07,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4291 states. [2022-03-03 20:22:07,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4291 to 3712. [2022-03-03 20:22:07,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3712 states, 3711 states have (on average 3.345998383185125) internal successors, (12417), 3711 states have internal predecessors, (12417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:07,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3712 states to 3712 states and 12417 transitions. [2022-03-03 20:22:07,986 INFO L78 Accepts]: Start accepts. Automaton has 3712 states and 12417 transitions. Word has length 39 [2022-03-03 20:22:07,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:22:07,986 INFO L470 AbstractCegarLoop]: Abstraction has 3712 states and 12417 transitions. [2022-03-03 20:22:07,986 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:07,986 INFO L276 IsEmpty]: Start isEmpty. Operand 3712 states and 12417 transitions. [2022-03-03 20:22:07,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:22:07,991 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:22:07,991 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:22:07,991 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable183 [2022-03-03 20:22:07,991 INFO L402 AbstractCegarLoop]: === Iteration 185 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:22:07,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:22:07,992 INFO L85 PathProgramCache]: Analyzing trace with hash -185302116, now seen corresponding path program 185 times [2022-03-03 20:22:07,992 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:22:07,992 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520871890] [2022-03-03 20:22:07,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:22:07,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:22:07,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:22:08,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:22:08,219 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:22:08,219 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520871890] [2022-03-03 20:22:08,219 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520871890] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:22:08,219 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:22:08,219 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:22:08,219 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619628770] [2022-03-03 20:22:08,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:22:08,220 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:22:08,220 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:22:08,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:22:08,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:22:08,220 INFO L87 Difference]: Start difference. First operand 3712 states and 12417 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:09,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:22:09,277 INFO L93 Difference]: Finished difference Result 4322 states and 14202 transitions. [2022-03-03 20:22:09,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-03-03 20:22:09,277 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:22:09,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:22:09,285 INFO L225 Difference]: With dead ends: 4322 [2022-03-03 20:22:09,286 INFO L226 Difference]: Without dead ends: 4270 [2022-03-03 20:22:09,286 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 821 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=315, Invalid=2991, Unknown=0, NotChecked=0, Total=3306 [2022-03-03 20:22:09,286 INFO L933 BasicCegarLoop]: 108 mSDtfsCounter, 325 mSDsluCounter, 1271 mSDsCounter, 0 mSdLazyCounter, 1859 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 325 SdHoareTripleChecker+Valid, 1070 SdHoareTripleChecker+Invalid, 1915 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1859 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:22:09,287 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [325 Valid, 1070 Invalid, 1915 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1859 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:22:09,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4270 states. [2022-03-03 20:22:09,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4270 to 3704. [2022-03-03 20:22:09,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3704 states, 3703 states have (on average 3.347826086956522) internal successors, (12397), 3703 states have internal predecessors, (12397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:09,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3704 states to 3704 states and 12397 transitions. [2022-03-03 20:22:09,342 INFO L78 Accepts]: Start accepts. Automaton has 3704 states and 12397 transitions. Word has length 39 [2022-03-03 20:22:09,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:22:09,342 INFO L470 AbstractCegarLoop]: Abstraction has 3704 states and 12397 transitions. [2022-03-03 20:22:09,342 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:09,342 INFO L276 IsEmpty]: Start isEmpty. Operand 3704 states and 12397 transitions. [2022-03-03 20:22:09,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:22:09,347 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:22:09,348 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:22:09,348 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable184 [2022-03-03 20:22:09,348 INFO L402 AbstractCegarLoop]: === Iteration 186 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:22:09,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:22:09,348 INFO L85 PathProgramCache]: Analyzing trace with hash -1781187540, now seen corresponding path program 186 times [2022-03-03 20:22:09,348 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:22:09,348 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970142310] [2022-03-03 20:22:09,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:22:09,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:22:09,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:22:09,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:22:09,570 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:22:09,570 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970142310] [2022-03-03 20:22:09,570 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970142310] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:22:09,570 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:22:09,570 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:22:09,570 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651191009] [2022-03-03 20:22:09,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:22:09,570 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:22:09,570 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:22:09,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:22:09,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:22:09,571 INFO L87 Difference]: Start difference. First operand 3704 states and 12397 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:10,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:22:10,389 INFO L93 Difference]: Finished difference Result 4299 states and 14125 transitions. [2022-03-03 20:22:10,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-03 20:22:10,390 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:22:10,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:22:10,398 INFO L225 Difference]: With dead ends: 4299 [2022-03-03 20:22:10,398 INFO L226 Difference]: Without dead ends: 4244 [2022-03-03 20:22:10,398 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 568 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=258, Invalid=2292, Unknown=0, NotChecked=0, Total=2550 [2022-03-03 20:22:10,399 INFO L933 BasicCegarLoop]: 108 mSDtfsCounter, 270 mSDsluCounter, 1249 mSDsCounter, 0 mSdLazyCounter, 1721 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 1037 SdHoareTripleChecker+Invalid, 1767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 1721 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 20:22:10,399 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [270 Valid, 1037 Invalid, 1767 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 1721 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 20:22:10,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4244 states. [2022-03-03 20:22:10,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4244 to 3706. [2022-03-03 20:22:10,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3706 states, 3705 states have (on average 3.3468286099865048) internal successors, (12400), 3705 states have internal predecessors, (12400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:10,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3706 states to 3706 states and 12400 transitions. [2022-03-03 20:22:10,454 INFO L78 Accepts]: Start accepts. Automaton has 3706 states and 12400 transitions. Word has length 39 [2022-03-03 20:22:10,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:22:10,454 INFO L470 AbstractCegarLoop]: Abstraction has 3706 states and 12400 transitions. [2022-03-03 20:22:10,454 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:10,454 INFO L276 IsEmpty]: Start isEmpty. Operand 3706 states and 12400 transitions. [2022-03-03 20:22:10,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:22:10,459 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:22:10,459 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:22:10,460 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable185 [2022-03-03 20:22:10,460 INFO L402 AbstractCegarLoop]: === Iteration 187 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:22:10,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:22:10,460 INFO L85 PathProgramCache]: Analyzing trace with hash -608535318, now seen corresponding path program 187 times [2022-03-03 20:22:10,460 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:22:10,460 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641782980] [2022-03-03 20:22:10,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:22:10,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:22:10,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:22:10,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:22:10,605 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:22:10,605 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641782980] [2022-03-03 20:22:10,605 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641782980] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:22:10,605 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:22:10,605 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:22:10,605 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173101761] [2022-03-03 20:22:10,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:22:10,605 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:22:10,605 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:22:10,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:22:10,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:22:10,605 INFO L87 Difference]: Start difference. First operand 3706 states and 12400 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:11,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:22:11,399 INFO L93 Difference]: Finished difference Result 4234 states and 13973 transitions. [2022-03-03 20:22:11,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-03 20:22:11,399 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:22:11,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:22:11,407 INFO L225 Difference]: With dead ends: 4234 [2022-03-03 20:22:11,407 INFO L226 Difference]: Without dead ends: 4188 [2022-03-03 20:22:11,408 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 469 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=233, Invalid=2023, Unknown=0, NotChecked=0, Total=2256 [2022-03-03 20:22:11,408 INFO L933 BasicCegarLoop]: 106 mSDtfsCounter, 261 mSDsluCounter, 1248 mSDsCounter, 0 mSdLazyCounter, 1686 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 1035 SdHoareTripleChecker+Invalid, 1721 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 20:22:11,408 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [261 Valid, 1035 Invalid, 1721 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1686 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 20:22:11,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4188 states. [2022-03-03 20:22:11,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4188 to 3710. [2022-03-03 20:22:11,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3710 states, 3709 states have (on average 3.3453761121596117) internal successors, (12408), 3709 states have internal predecessors, (12408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:11,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3710 states to 3710 states and 12408 transitions. [2022-03-03 20:22:11,460 INFO L78 Accepts]: Start accepts. Automaton has 3710 states and 12408 transitions. Word has length 39 [2022-03-03 20:22:11,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:22:11,461 INFO L470 AbstractCegarLoop]: Abstraction has 3710 states and 12408 transitions. [2022-03-03 20:22:11,461 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:11,461 INFO L276 IsEmpty]: Start isEmpty. Operand 3710 states and 12408 transitions. [2022-03-03 20:22:11,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:22:11,466 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:22:11,466 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:22:11,466 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable186 [2022-03-03 20:22:11,466 INFO L402 AbstractCegarLoop]: === Iteration 188 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:22:11,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:22:11,466 INFO L85 PathProgramCache]: Analyzing trace with hash -856001480, now seen corresponding path program 188 times [2022-03-03 20:22:11,466 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:22:11,466 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805343967] [2022-03-03 20:22:11,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:22:11,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:22:11,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:22:11,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:22:11,612 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:22:11,612 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805343967] [2022-03-03 20:22:11,612 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805343967] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:22:11,612 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:22:11,612 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:22:11,612 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483078293] [2022-03-03 20:22:11,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:22:11,612 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:22:11,612 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:22:11,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:22:11,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:22:11,613 INFO L87 Difference]: Start difference. First operand 3710 states and 12408 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:12,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:22:12,464 INFO L93 Difference]: Finished difference Result 4218 states and 13962 transitions. [2022-03-03 20:22:12,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-03 20:22:12,464 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:22:12,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:22:12,473 INFO L225 Difference]: With dead ends: 4218 [2022-03-03 20:22:12,473 INFO L226 Difference]: Without dead ends: 4169 [2022-03-03 20:22:12,473 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 561 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=263, Invalid=2287, Unknown=0, NotChecked=0, Total=2550 [2022-03-03 20:22:12,473 INFO L933 BasicCegarLoop]: 112 mSDtfsCounter, 263 mSDsluCounter, 1276 mSDsCounter, 0 mSdLazyCounter, 1727 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 1088 SdHoareTripleChecker+Invalid, 1768 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1727 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 20:22:12,473 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [263 Valid, 1088 Invalid, 1768 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1727 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 20:22:12,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4169 states. [2022-03-03 20:22:12,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4169 to 3700. [2022-03-03 20:22:12,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3700 states, 3699 states have (on average 3.348742903487429) internal successors, (12387), 3699 states have internal predecessors, (12387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:12,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3700 states to 3700 states and 12387 transitions. [2022-03-03 20:22:12,528 INFO L78 Accepts]: Start accepts. Automaton has 3700 states and 12387 transitions. Word has length 39 [2022-03-03 20:22:12,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:22:12,528 INFO L470 AbstractCegarLoop]: Abstraction has 3700 states and 12387 transitions. [2022-03-03 20:22:12,528 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:12,528 INFO L276 IsEmpty]: Start isEmpty. Operand 3700 states and 12387 transitions. [2022-03-03 20:22:12,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:22:12,533 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:22:12,533 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:22:12,533 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable187 [2022-03-03 20:22:12,534 INFO L402 AbstractCegarLoop]: === Iteration 189 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:22:12,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:22:12,534 INFO L85 PathProgramCache]: Analyzing trace with hash 682874042, now seen corresponding path program 189 times [2022-03-03 20:22:12,534 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:22:12,534 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591217994] [2022-03-03 20:22:12,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:22:12,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:22:12,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:22:12,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:22:12,694 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:22:12,694 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591217994] [2022-03-03 20:22:12,694 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591217994] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:22:12,694 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:22:12,694 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:22:12,694 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951563795] [2022-03-03 20:22:12,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:22:12,694 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:22:12,694 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:22:12,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:22:12,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:22:12,694 INFO L87 Difference]: Start difference. First operand 3700 states and 12387 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:13,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:22:13,730 INFO L93 Difference]: Finished difference Result 4155 states and 13831 transitions. [2022-03-03 20:22:13,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-03-03 20:22:13,730 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:22:13,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:22:13,737 INFO L225 Difference]: With dead ends: 4155 [2022-03-03 20:22:13,738 INFO L226 Difference]: Without dead ends: 4088 [2022-03-03 20:22:13,738 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 337 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=181, Invalid=1625, Unknown=0, NotChecked=0, Total=1806 [2022-03-03 20:22:13,738 INFO L933 BasicCegarLoop]: 114 mSDtfsCounter, 231 mSDsluCounter, 1188 mSDsCounter, 0 mSdLazyCounter, 1747 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 1027 SdHoareTripleChecker+Invalid, 1775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:22:13,738 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [231 Valid, 1027 Invalid, 1775 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1747 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:22:13,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4088 states. [2022-03-03 20:22:13,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4088 to 3740. [2022-03-03 20:22:13,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3740 states, 3739 states have (on average 3.3418026210216634) internal successors, (12495), 3739 states have internal predecessors, (12495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:13,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3740 states to 3740 states and 12495 transitions. [2022-03-03 20:22:13,792 INFO L78 Accepts]: Start accepts. Automaton has 3740 states and 12495 transitions. Word has length 39 [2022-03-03 20:22:13,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:22:13,792 INFO L470 AbstractCegarLoop]: Abstraction has 3740 states and 12495 transitions. [2022-03-03 20:22:13,792 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:13,792 INFO L276 IsEmpty]: Start isEmpty. Operand 3740 states and 12495 transitions. [2022-03-03 20:22:13,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:22:13,798 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:22:13,798 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:22:13,798 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable188 [2022-03-03 20:22:13,798 INFO L402 AbstractCegarLoop]: === Iteration 190 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:22:13,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:22:13,798 INFO L85 PathProgramCache]: Analyzing trace with hash 552279194, now seen corresponding path program 190 times [2022-03-03 20:22:13,798 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:22:13,798 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558282796] [2022-03-03 20:22:13,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:22:13,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:22:13,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:22:13,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:22:13,980 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:22:13,980 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558282796] [2022-03-03 20:22:13,980 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558282796] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:22:13,980 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:22:13,980 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:22:13,980 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595817171] [2022-03-03 20:22:13,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:22:13,980 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:22:13,980 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:22:13,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:22:13,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:22:13,981 INFO L87 Difference]: Start difference. First operand 3740 states and 12495 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:14,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:22:14,983 INFO L93 Difference]: Finished difference Result 4143 states and 13791 transitions. [2022-03-03 20:22:14,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-03 20:22:14,983 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:22:14,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:22:14,991 INFO L225 Difference]: With dead ends: 4143 [2022-03-03 20:22:14,991 INFO L226 Difference]: Without dead ends: 4080 [2022-03-03 20:22:14,992 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 363 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=189, Invalid=1703, Unknown=0, NotChecked=0, Total=1892 [2022-03-03 20:22:14,992 INFO L933 BasicCegarLoop]: 115 mSDtfsCounter, 242 mSDsluCounter, 1181 mSDsCounter, 0 mSdLazyCounter, 1743 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 1034 SdHoareTripleChecker+Invalid, 1778 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1743 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:22:14,992 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [242 Valid, 1034 Invalid, 1778 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1743 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:22:14,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4080 states. [2022-03-03 20:22:15,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4080 to 3732. [2022-03-03 20:22:15,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3732 states, 3731 states have (on average 3.3425355132672205) internal successors, (12471), 3731 states have internal predecessors, (12471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:15,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3732 states to 3732 states and 12471 transitions. [2022-03-03 20:22:15,045 INFO L78 Accepts]: Start accepts. Automaton has 3732 states and 12471 transitions. Word has length 39 [2022-03-03 20:22:15,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:22:15,045 INFO L470 AbstractCegarLoop]: Abstraction has 3732 states and 12471 transitions. [2022-03-03 20:22:15,045 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:15,045 INFO L276 IsEmpty]: Start isEmpty. Operand 3732 states and 12471 transitions. [2022-03-03 20:22:15,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:22:15,050 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:22:15,050 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:22:15,050 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable189 [2022-03-03 20:22:15,051 INFO L402 AbstractCegarLoop]: === Iteration 191 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:22:15,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:22:15,051 INFO L85 PathProgramCache]: Analyzing trace with hash 22378746, now seen corresponding path program 191 times [2022-03-03 20:22:15,051 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:22:15,051 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394776843] [2022-03-03 20:22:15,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:22:15,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:22:15,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:22:15,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:22:15,272 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:22:15,272 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394776843] [2022-03-03 20:22:15,272 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394776843] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:22:15,272 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:22:15,272 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:22:15,272 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56486227] [2022-03-03 20:22:15,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:22:15,272 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:22:15,272 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:22:15,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:22:15,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:22:15,273 INFO L87 Difference]: Start difference. First operand 3732 states and 12471 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:16,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:22:16,318 INFO L93 Difference]: Finished difference Result 4167 states and 13851 transitions. [2022-03-03 20:22:16,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-03 20:22:16,318 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:22:16,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:22:16,326 INFO L225 Difference]: With dead ends: 4167 [2022-03-03 20:22:16,326 INFO L226 Difference]: Without dead ends: 4044 [2022-03-03 20:22:16,326 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 389 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=195, Invalid=1785, Unknown=0, NotChecked=0, Total=1980 [2022-03-03 20:22:16,327 INFO L933 BasicCegarLoop]: 120 mSDtfsCounter, 243 mSDsluCounter, 1240 mSDsCounter, 0 mSdLazyCounter, 1754 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 1099 SdHoareTripleChecker+Invalid, 1786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1754 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:22:16,327 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [243 Valid, 1099 Invalid, 1786 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1754 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:22:16,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4044 states. [2022-03-03 20:22:16,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4044 to 3684. [2022-03-03 20:22:16,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3684 states, 3683 states have (on average 3.3497149063263643) internal successors, (12337), 3683 states have internal predecessors, (12337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:16,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3684 states to 3684 states and 12337 transitions. [2022-03-03 20:22:16,378 INFO L78 Accepts]: Start accepts. Automaton has 3684 states and 12337 transitions. Word has length 39 [2022-03-03 20:22:16,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:22:16,378 INFO L470 AbstractCegarLoop]: Abstraction has 3684 states and 12337 transitions. [2022-03-03 20:22:16,378 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:16,379 INFO L276 IsEmpty]: Start isEmpty. Operand 3684 states and 12337 transitions. [2022-03-03 20:22:16,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:22:16,384 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:22:16,384 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:22:16,385 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable190 [2022-03-03 20:22:16,385 INFO L402 AbstractCegarLoop]: === Iteration 192 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:22:16,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:22:16,385 INFO L85 PathProgramCache]: Analyzing trace with hash -696032424, now seen corresponding path program 192 times [2022-03-03 20:22:16,386 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:22:16,386 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572572755] [2022-03-03 20:22:16,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:22:16,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:22:16,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:22:16,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:22:16,545 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:22:16,545 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572572755] [2022-03-03 20:22:16,545 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572572755] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:22:16,545 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:22:16,545 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:22:16,545 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183497034] [2022-03-03 20:22:16,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:22:16,545 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:22:16,545 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:22:16,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:22:16,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:22:16,546 INFO L87 Difference]: Start difference. First operand 3684 states and 12337 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:17,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:22:17,905 INFO L93 Difference]: Finished difference Result 6284 states and 21185 transitions. [2022-03-03 20:22:17,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2022-03-03 20:22:17,905 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:22:17,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:22:17,918 INFO L225 Difference]: With dead ends: 6284 [2022-03-03 20:22:17,918 INFO L226 Difference]: Without dead ends: 6241 [2022-03-03 20:22:17,919 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1277 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=399, Invalid=4157, Unknown=0, NotChecked=0, Total=4556 [2022-03-03 20:22:17,919 INFO L933 BasicCegarLoop]: 178 mSDtfsCounter, 512 mSDsluCounter, 1902 mSDsCounter, 0 mSdLazyCounter, 2498 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 512 SdHoareTripleChecker+Valid, 1784 SdHoareTripleChecker+Invalid, 2591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 2498 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-03 20:22:17,919 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [512 Valid, 1784 Invalid, 2591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 2498 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-03 20:22:17,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6241 states. [2022-03-03 20:22:17,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6241 to 3912. [2022-03-03 20:22:17,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3912 states, 3911 states have (on average 3.3623114293019687) internal successors, (13150), 3911 states have internal predecessors, (13150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:17,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3912 states to 3912 states and 13150 transitions. [2022-03-03 20:22:17,984 INFO L78 Accepts]: Start accepts. Automaton has 3912 states and 13150 transitions. Word has length 39 [2022-03-03 20:22:17,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:22:17,984 INFO L470 AbstractCegarLoop]: Abstraction has 3912 states and 13150 transitions. [2022-03-03 20:22:17,984 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:17,984 INFO L276 IsEmpty]: Start isEmpty. Operand 3912 states and 13150 transitions. [2022-03-03 20:22:17,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:22:17,990 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:22:17,990 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:22:17,990 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable191 [2022-03-03 20:22:17,990 INFO L402 AbstractCegarLoop]: === Iteration 193 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:22:17,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:22:17,990 INFO L85 PathProgramCache]: Analyzing trace with hash 1818336570, now seen corresponding path program 193 times [2022-03-03 20:22:17,990 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:22:17,990 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992477078] [2022-03-03 20:22:17,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:22:17,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:22:17,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:22:18,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:22:18,198 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:22:18,198 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992477078] [2022-03-03 20:22:18,198 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992477078] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:22:18,198 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:22:18,198 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:22:18,198 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637566504] [2022-03-03 20:22:18,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:22:18,198 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:22:18,198 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:22:18,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:22:18,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:22:18,198 INFO L87 Difference]: Start difference. First operand 3912 states and 13150 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:20,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:22:20,294 INFO L93 Difference]: Finished difference Result 7189 states and 24259 transitions. [2022-03-03 20:22:20,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-03-03 20:22:20,294 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:22:20,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:22:20,310 INFO L225 Difference]: With dead ends: 7189 [2022-03-03 20:22:20,310 INFO L226 Difference]: Without dead ends: 7137 [2022-03-03 20:22:20,310 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1653 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=448, Invalid=5102, Unknown=0, NotChecked=0, Total=5550 [2022-03-03 20:22:20,311 INFO L933 BasicCegarLoop]: 218 mSDtfsCounter, 554 mSDsluCounter, 2252 mSDsCounter, 0 mSdLazyCounter, 2878 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 554 SdHoareTripleChecker+Valid, 2176 SdHoareTripleChecker+Invalid, 2979 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 2878 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-03 20:22:20,311 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [554 Valid, 2176 Invalid, 2979 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 2878 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-03 20:22:20,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7137 states. [2022-03-03 20:22:20,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7137 to 3882. [2022-03-03 20:22:20,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3882 states, 3881 states have (on average 3.3638237567637206) internal successors, (13055), 3881 states have internal predecessors, (13055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:20,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3882 states to 3882 states and 13055 transitions. [2022-03-03 20:22:20,386 INFO L78 Accepts]: Start accepts. Automaton has 3882 states and 13055 transitions. Word has length 39 [2022-03-03 20:22:20,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:22:20,386 INFO L470 AbstractCegarLoop]: Abstraction has 3882 states and 13055 transitions. [2022-03-03 20:22:20,386 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:20,386 INFO L276 IsEmpty]: Start isEmpty. Operand 3882 states and 13055 transitions. [2022-03-03 20:22:20,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:22:20,392 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:22:20,392 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:22:20,392 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable192 [2022-03-03 20:22:20,392 INFO L402 AbstractCegarLoop]: === Iteration 194 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:22:20,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:22:20,392 INFO L85 PathProgramCache]: Analyzing trace with hash 222451146, now seen corresponding path program 194 times [2022-03-03 20:22:20,392 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:22:20,392 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231539105] [2022-03-03 20:22:20,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:22:20,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:22:20,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:22:20,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:22:20,620 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:22:20,620 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231539105] [2022-03-03 20:22:20,620 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231539105] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:22:20,620 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:22:20,620 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:22:20,620 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242966192] [2022-03-03 20:22:20,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:22:20,620 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:22:20,620 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:22:20,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:22:20,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:22:20,620 INFO L87 Difference]: Start difference. First operand 3882 states and 13055 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:22,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:22:22,073 INFO L93 Difference]: Finished difference Result 6209 states and 20838 transitions. [2022-03-03 20:22:22,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-03-03 20:22:22,073 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:22:22,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:22:22,086 INFO L225 Difference]: With dead ends: 6209 [2022-03-03 20:22:22,086 INFO L226 Difference]: Without dead ends: 6154 [2022-03-03 20:22:22,086 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 602 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=262, Invalid=2390, Unknown=0, NotChecked=0, Total=2652 [2022-03-03 20:22:22,086 INFO L933 BasicCegarLoop]: 167 mSDtfsCounter, 403 mSDsluCounter, 1763 mSDsCounter, 0 mSdLazyCounter, 2195 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 403 SdHoareTripleChecker+Valid, 1637 SdHoareTripleChecker+Invalid, 2246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 2195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 20:22:22,087 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [403 Valid, 1637 Invalid, 2246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 2195 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 20:22:22,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6154 states. [2022-03-03 20:22:22,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6154 to 4087. [2022-03-03 20:22:22,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4087 states, 4086 states have (on average 3.3805677924620654) internal successors, (13813), 4086 states have internal predecessors, (13813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:22,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4087 states to 4087 states and 13813 transitions. [2022-03-03 20:22:22,158 INFO L78 Accepts]: Start accepts. Automaton has 4087 states and 13813 transitions. Word has length 39 [2022-03-03 20:22:22,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:22:22,158 INFO L470 AbstractCegarLoop]: Abstraction has 4087 states and 13813 transitions. [2022-03-03 20:22:22,158 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:22,158 INFO L276 IsEmpty]: Start isEmpty. Operand 4087 states and 13813 transitions. [2022-03-03 20:22:22,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:22:22,164 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:22:22,165 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:22:22,165 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable193 [2022-03-03 20:22:22,165 INFO L402 AbstractCegarLoop]: === Iteration 195 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:22:22,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:22:22,165 INFO L85 PathProgramCache]: Analyzing trace with hash 1395103368, now seen corresponding path program 195 times [2022-03-03 20:22:22,165 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:22:22,165 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134433558] [2022-03-03 20:22:22,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:22:22,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:22:22,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:22:22,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:22:22,313 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:22:22,313 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134433558] [2022-03-03 20:22:22,313 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134433558] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:22:22,313 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:22:22,313 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:22:22,313 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987549378] [2022-03-03 20:22:22,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:22:22,313 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:22:22,313 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:22:22,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:22:22,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:22:22,314 INFO L87 Difference]: Start difference. First operand 4087 states and 13813 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:23,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:22:23,430 INFO L93 Difference]: Finished difference Result 7114 states and 23916 transitions. [2022-03-03 20:22:23,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-03-03 20:22:23,430 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:22:23,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:22:23,445 INFO L225 Difference]: With dead ends: 7114 [2022-03-03 20:22:23,445 INFO L226 Difference]: Without dead ends: 7054 [2022-03-03 20:22:23,446 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 828 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=300, Invalid=3006, Unknown=0, NotChecked=0, Total=3306 [2022-03-03 20:22:23,446 INFO L933 BasicCegarLoop]: 207 mSDtfsCounter, 429 mSDsluCounter, 2130 mSDsCounter, 0 mSdLazyCounter, 2570 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 429 SdHoareTripleChecker+Valid, 2048 SdHoareTripleChecker+Invalid, 2625 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 2570 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:22:23,446 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [429 Valid, 2048 Invalid, 2625 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 2570 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:22:23,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7054 states. [2022-03-03 20:22:23,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7054 to 4085. [2022-03-03 20:22:23,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4085 states, 4084 states have (on average 3.3809990205680704) internal successors, (13808), 4084 states have internal predecessors, (13808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:23,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4085 states to 4085 states and 13808 transitions. [2022-03-03 20:22:23,520 INFO L78 Accepts]: Start accepts. Automaton has 4085 states and 13808 transitions. Word has length 39 [2022-03-03 20:22:23,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:22:23,520 INFO L470 AbstractCegarLoop]: Abstraction has 4085 states and 13808 transitions. [2022-03-03 20:22:23,520 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:23,520 INFO L276 IsEmpty]: Start isEmpty. Operand 4085 states and 13808 transitions. [2022-03-03 20:22:23,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:22:23,526 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:22:23,526 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:22:23,526 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable194 [2022-03-03 20:22:23,526 INFO L402 AbstractCegarLoop]: === Iteration 196 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:22:23,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:22:23,527 INFO L85 PathProgramCache]: Analyzing trace with hash -482300234, now seen corresponding path program 196 times [2022-03-03 20:22:23,527 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:22:23,527 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923321397] [2022-03-03 20:22:23,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:22:23,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:22:23,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:22:23,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:22:23,681 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:22:23,681 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923321397] [2022-03-03 20:22:23,681 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923321397] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:22:23,681 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:22:23,681 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:22:23,682 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52946970] [2022-03-03 20:22:23,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:22:23,682 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:22:23,682 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:22:23,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:22:23,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:22:23,682 INFO L87 Difference]: Start difference. First operand 4085 states and 13808 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:24,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:22:24,605 INFO L93 Difference]: Finished difference Result 6178 states and 20792 transitions. [2022-03-03 20:22:24,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-03-03 20:22:24,605 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:22:24,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:22:24,617 INFO L225 Difference]: With dead ends: 6178 [2022-03-03 20:22:24,618 INFO L226 Difference]: Without dead ends: 6087 [2022-03-03 20:22:24,618 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 572 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=244, Invalid=2306, Unknown=0, NotChecked=0, Total=2550 [2022-03-03 20:22:24,618 INFO L933 BasicCegarLoop]: 174 mSDtfsCounter, 390 mSDsluCounter, 1793 mSDsCounter, 0 mSdLazyCounter, 2171 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 390 SdHoareTripleChecker+Valid, 1703 SdHoareTripleChecker+Invalid, 2218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 2171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:22:24,618 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [390 Valid, 1703 Invalid, 2218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 2171 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:22:24,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6087 states. [2022-03-03 20:22:24,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6087 to 4085. [2022-03-03 20:22:24,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4085 states, 4084 states have (on average 3.379529872673849) internal successors, (13802), 4084 states have internal predecessors, (13802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:24,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4085 states to 4085 states and 13802 transitions. [2022-03-03 20:22:24,689 INFO L78 Accepts]: Start accepts. Automaton has 4085 states and 13802 transitions. Word has length 39 [2022-03-03 20:22:24,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:22:24,689 INFO L470 AbstractCegarLoop]: Abstraction has 4085 states and 13802 transitions. [2022-03-03 20:22:24,689 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:24,689 INFO L276 IsEmpty]: Start isEmpty. Operand 4085 states and 13802 transitions. [2022-03-03 20:22:24,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:22:24,695 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:22:24,695 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:22:24,695 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable195 [2022-03-03 20:22:24,695 INFO L402 AbstractCegarLoop]: === Iteration 197 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:22:24,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:22:24,695 INFO L85 PathProgramCache]: Analyzing trace with hash -1984782440, now seen corresponding path program 197 times [2022-03-03 20:22:24,695 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:22:24,696 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278876008] [2022-03-03 20:22:24,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:22:24,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:22:24,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:22:24,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:22:24,839 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:22:24,839 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278876008] [2022-03-03 20:22:24,839 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278876008] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:22:24,839 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:22:24,839 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:22:24,839 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760400929] [2022-03-03 20:22:24,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:22:24,839 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:22:24,839 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:22:24,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:22:24,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:22:24,847 INFO L87 Difference]: Start difference. First operand 4085 states and 13802 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:25,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:22:25,997 INFO L93 Difference]: Finished difference Result 7266 states and 24407 transitions. [2022-03-03 20:22:25,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-03-03 20:22:25,997 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:22:25,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:22:26,012 INFO L225 Difference]: With dead ends: 7266 [2022-03-03 20:22:26,012 INFO L226 Difference]: Without dead ends: 7087 [2022-03-03 20:22:26,013 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 825 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=290, Invalid=3016, Unknown=0, NotChecked=0, Total=3306 [2022-03-03 20:22:26,013 INFO L933 BasicCegarLoop]: 227 mSDtfsCounter, 422 mSDsluCounter, 2284 mSDsCounter, 0 mSdLazyCounter, 2701 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 422 SdHoareTripleChecker+Valid, 2236 SdHoareTripleChecker+Invalid, 2759 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 2701 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:22:26,013 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [422 Valid, 2236 Invalid, 2759 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 2701 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:22:26,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7087 states. [2022-03-03 20:22:26,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7087 to 4266. [2022-03-03 20:22:26,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4266 states, 4265 states have (on average 3.381008206330598) internal successors, (14420), 4265 states have internal predecessors, (14420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:26,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4266 states to 4266 states and 14420 transitions. [2022-03-03 20:22:26,110 INFO L78 Accepts]: Start accepts. Automaton has 4266 states and 14420 transitions. Word has length 39 [2022-03-03 20:22:26,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:22:26,110 INFO L470 AbstractCegarLoop]: Abstraction has 4266 states and 14420 transitions. [2022-03-03 20:22:26,110 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:26,110 INFO L276 IsEmpty]: Start isEmpty. Operand 4266 states and 14420 transitions. [2022-03-03 20:22:26,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:22:26,116 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:22:26,116 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:22:26,116 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable196 [2022-03-03 20:22:26,116 INFO L402 AbstractCegarLoop]: === Iteration 198 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:22:26,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:22:26,117 INFO L85 PathProgramCache]: Analyzing trace with hash -1248064424, now seen corresponding path program 198 times [2022-03-03 20:22:26,117 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:22:26,117 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142099896] [2022-03-03 20:22:26,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:22:26,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:22:26,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:22:26,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:22:26,330 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:22:26,330 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142099896] [2022-03-03 20:22:26,330 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142099896] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:22:26,330 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:22:26,330 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:22:26,331 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621909615] [2022-03-03 20:22:26,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:22:26,331 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:22:26,331 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:22:26,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:22:26,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:22:26,331 INFO L87 Difference]: Start difference. First operand 4266 states and 14420 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:27,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:22:27,742 INFO L93 Difference]: Finished difference Result 4817 states and 16072 transitions. [2022-03-03 20:22:27,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-03-03 20:22:27,742 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:22:27,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:22:27,752 INFO L225 Difference]: With dead ends: 4817 [2022-03-03 20:22:27,752 INFO L226 Difference]: Without dead ends: 4711 [2022-03-03 20:22:27,752 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 710 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=272, Invalid=2698, Unknown=0, NotChecked=0, Total=2970 [2022-03-03 20:22:27,752 INFO L933 BasicCegarLoop]: 134 mSDtfsCounter, 326 mSDsluCounter, 1424 mSDsCounter, 0 mSdLazyCounter, 2113 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 326 SdHoareTripleChecker+Valid, 1218 SdHoareTripleChecker+Invalid, 2167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 2113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-03 20:22:27,752 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [326 Valid, 1218 Invalid, 2167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 2113 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-03 20:22:27,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4711 states. [2022-03-03 20:22:27,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4711 to 4288. [2022-03-03 20:22:27,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4288 states, 4287 states have (on average 3.3813855843247027) internal successors, (14496), 4287 states have internal predecessors, (14496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:27,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4288 states to 4288 states and 14496 transitions. [2022-03-03 20:22:27,815 INFO L78 Accepts]: Start accepts. Automaton has 4288 states and 14496 transitions. Word has length 39 [2022-03-03 20:22:27,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:22:27,815 INFO L470 AbstractCegarLoop]: Abstraction has 4288 states and 14496 transitions. [2022-03-03 20:22:27,815 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:27,815 INFO L276 IsEmpty]: Start isEmpty. Operand 4288 states and 14496 transitions. [2022-03-03 20:22:27,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:22:27,821 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:22:27,821 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:22:27,822 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable197 [2022-03-03 20:22:27,822 INFO L402 AbstractCegarLoop]: === Iteration 199 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:22:27,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:22:27,822 INFO L85 PathProgramCache]: Analyzing trace with hash 1552011972, now seen corresponding path program 199 times [2022-03-03 20:22:27,822 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:22:27,822 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303752490] [2022-03-03 20:22:27,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:22:27,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:22:27,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:22:28,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:22:28,006 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:22:28,006 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303752490] [2022-03-03 20:22:28,006 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303752490] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:22:28,006 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:22:28,006 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:22:28,006 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349287469] [2022-03-03 20:22:28,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:22:28,007 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:22:28,007 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:22:28,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:22:28,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:22:28,007 INFO L87 Difference]: Start difference. First operand 4288 states and 14496 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:29,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:22:29,208 INFO L93 Difference]: Finished difference Result 4854 states and 16096 transitions. [2022-03-03 20:22:29,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-03-03 20:22:29,209 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:22:29,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:22:29,218 INFO L225 Difference]: With dead ends: 4854 [2022-03-03 20:22:29,218 INFO L226 Difference]: Without dead ends: 4790 [2022-03-03 20:22:29,218 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 753 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=287, Invalid=2793, Unknown=0, NotChecked=0, Total=3080 [2022-03-03 20:22:29,218 INFO L933 BasicCegarLoop]: 103 mSDtfsCounter, 321 mSDsluCounter, 1223 mSDsCounter, 0 mSdLazyCounter, 1806 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 321 SdHoareTripleChecker+Valid, 987 SdHoareTripleChecker+Invalid, 1863 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 1806 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:22:29,218 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [321 Valid, 987 Invalid, 1863 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 1806 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:22:29,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4790 states. [2022-03-03 20:22:29,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4790 to 4304. [2022-03-03 20:22:29,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4304 states, 4303 states have (on average 3.380897048570765) internal successors, (14548), 4303 states have internal predecessors, (14548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:29,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4304 states to 4304 states and 14548 transitions. [2022-03-03 20:22:29,280 INFO L78 Accepts]: Start accepts. Automaton has 4304 states and 14548 transitions. Word has length 39 [2022-03-03 20:22:29,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:22:29,280 INFO L470 AbstractCegarLoop]: Abstraction has 4304 states and 14548 transitions. [2022-03-03 20:22:29,280 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:29,280 INFO L276 IsEmpty]: Start isEmpty. Operand 4304 states and 14548 transitions. [2022-03-03 20:22:29,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:22:29,286 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:22:29,287 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:22:29,287 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable198 [2022-03-03 20:22:29,287 INFO L402 AbstractCegarLoop]: === Iteration 200 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:22:29,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:22:29,287 INFO L85 PathProgramCache]: Analyzing trace with hash -1824471754, now seen corresponding path program 200 times [2022-03-03 20:22:29,287 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:22:29,287 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460415075] [2022-03-03 20:22:29,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:22:29,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:22:29,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:22:29,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:22:29,478 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:22:29,478 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460415075] [2022-03-03 20:22:29,478 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460415075] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:22:29,478 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:22:29,478 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:22:29,479 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192523310] [2022-03-03 20:22:29,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:22:29,479 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:22:29,479 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:22:29,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:22:29,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:22:29,479 INFO L87 Difference]: Start difference. First operand 4304 states and 14548 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:30,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:22:30,526 INFO L93 Difference]: Finished difference Result 4752 states and 15828 transitions. [2022-03-03 20:22:30,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-03-03 20:22:30,526 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:22:30,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:22:30,536 INFO L225 Difference]: With dead ends: 4752 [2022-03-03 20:22:30,536 INFO L226 Difference]: Without dead ends: 4709 [2022-03-03 20:22:30,536 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 421 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=203, Invalid=1867, Unknown=0, NotChecked=0, Total=2070 [2022-03-03 20:22:30,536 INFO L933 BasicCegarLoop]: 102 mSDtfsCounter, 270 mSDsluCounter, 1215 mSDsCounter, 0 mSdLazyCounter, 1654 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 945 SdHoareTripleChecker+Invalid, 1689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1654 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:22:30,536 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [270 Valid, 945 Invalid, 1689 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1654 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:22:30,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4709 states. [2022-03-03 20:22:30,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4709 to 4310. [2022-03-03 20:22:30,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4310 states, 4309 states have (on average 3.379206312369459) internal successors, (14561), 4309 states have internal predecessors, (14561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:30,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4310 states to 4310 states and 14561 transitions. [2022-03-03 20:22:30,597 INFO L78 Accepts]: Start accepts. Automaton has 4310 states and 14561 transitions. Word has length 39 [2022-03-03 20:22:30,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:22:30,597 INFO L470 AbstractCegarLoop]: Abstraction has 4310 states and 14561 transitions. [2022-03-03 20:22:30,597 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:30,597 INFO L276 IsEmpty]: Start isEmpty. Operand 4310 states and 14561 transitions. [2022-03-03 20:22:30,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:22:30,603 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:22:30,603 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:22:30,603 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable199 [2022-03-03 20:22:30,603 INFO L402 AbstractCegarLoop]: === Iteration 201 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:22:30,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:22:30,604 INFO L85 PathProgramCache]: Analyzing trace with hash -1804323020, now seen corresponding path program 201 times [2022-03-03 20:22:30,604 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:22:30,604 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981095522] [2022-03-03 20:22:30,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:22:30,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:22:30,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:22:30,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:22:30,806 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:22:30,806 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981095522] [2022-03-03 20:22:30,806 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981095522] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:22:30,806 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:22:30,806 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:22:30,806 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455527417] [2022-03-03 20:22:30,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:22:30,806 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:22:30,806 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:22:30,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:22:30,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:22:30,806 INFO L87 Difference]: Start difference. First operand 4310 states and 14561 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:31,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:22:31,711 INFO L93 Difference]: Finished difference Result 4723 states and 15772 transitions. [2022-03-03 20:22:31,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-03-03 20:22:31,711 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:22:31,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:22:31,721 INFO L225 Difference]: With dead ends: 4723 [2022-03-03 20:22:31,721 INFO L226 Difference]: Without dead ends: 4680 [2022-03-03 20:22:31,721 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 511 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=230, Invalid=2122, Unknown=0, NotChecked=0, Total=2352 [2022-03-03 20:22:31,721 INFO L933 BasicCegarLoop]: 104 mSDtfsCounter, 268 mSDsluCounter, 1225 mSDsCounter, 0 mSdLazyCounter, 1653 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 967 SdHoareTripleChecker+Invalid, 1694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1653 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 20:22:31,721 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [268 Valid, 967 Invalid, 1694 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1653 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 20:22:31,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4680 states. [2022-03-03 20:22:31,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4680 to 4306. [2022-03-03 20:22:31,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4306 states, 4305 states have (on average 3.3800232288037164) internal successors, (14551), 4305 states have internal predecessors, (14551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:31,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4306 states to 4306 states and 14551 transitions. [2022-03-03 20:22:31,786 INFO L78 Accepts]: Start accepts. Automaton has 4306 states and 14551 transitions. Word has length 39 [2022-03-03 20:22:31,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:22:31,786 INFO L470 AbstractCegarLoop]: Abstraction has 4306 states and 14551 transitions. [2022-03-03 20:22:31,787 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:31,787 INFO L276 IsEmpty]: Start isEmpty. Operand 4306 states and 14551 transitions. [2022-03-03 20:22:31,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:22:31,793 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:22:31,793 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:22:31,793 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable200 [2022-03-03 20:22:31,793 INFO L402 AbstractCegarLoop]: === Iteration 202 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:22:31,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:22:31,793 INFO L85 PathProgramCache]: Analyzing trace with hash -651819532, now seen corresponding path program 202 times [2022-03-03 20:22:31,793 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:22:31,793 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87920792] [2022-03-03 20:22:31,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:22:31,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:22:31,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:22:31,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:22:31,966 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:22:31,966 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87920792] [2022-03-03 20:22:31,966 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87920792] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:22:31,966 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:22:31,966 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:22:31,966 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320038245] [2022-03-03 20:22:31,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:22:31,966 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:22:31,966 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:22:31,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:22:31,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:22:31,967 INFO L87 Difference]: Start difference. First operand 4306 states and 14551 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:32,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:22:32,694 INFO L93 Difference]: Finished difference Result 4730 states and 15787 transitions. [2022-03-03 20:22:32,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-03-03 20:22:32,694 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:22:32,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:22:32,704 INFO L225 Difference]: With dead ends: 4730 [2022-03-03 20:22:32,704 INFO L226 Difference]: Without dead ends: 4670 [2022-03-03 20:22:32,704 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 453 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=214, Invalid=1948, Unknown=0, NotChecked=0, Total=2162 [2022-03-03 20:22:32,704 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 277 mSDsluCounter, 1151 mSDsCounter, 0 mSdLazyCounter, 1577 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 921 SdHoareTripleChecker+Invalid, 1623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 1577 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 20:22:32,705 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [277 Valid, 921 Invalid, 1623 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 1577 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 20:22:32,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4670 states. [2022-03-03 20:22:32,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4670 to 4304. [2022-03-03 20:22:32,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4304 states, 4303 states have (on average 3.380432256565187) internal successors, (14546), 4303 states have internal predecessors, (14546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:32,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4304 states to 4304 states and 14546 transitions. [2022-03-03 20:22:32,767 INFO L78 Accepts]: Start accepts. Automaton has 4304 states and 14546 transitions. Word has length 39 [2022-03-03 20:22:32,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:22:32,768 INFO L470 AbstractCegarLoop]: Abstraction has 4304 states and 14546 transitions. [2022-03-03 20:22:32,768 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:32,768 INFO L276 IsEmpty]: Start isEmpty. Operand 4304 states and 14546 transitions. [2022-03-03 20:22:32,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:22:32,774 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:22:32,774 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:22:32,774 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable201 [2022-03-03 20:22:32,774 INFO L402 AbstractCegarLoop]: === Iteration 203 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:22:32,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:22:32,774 INFO L85 PathProgramCache]: Analyzing trace with hash 1563581222, now seen corresponding path program 203 times [2022-03-03 20:22:32,774 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:22:32,774 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836899388] [2022-03-03 20:22:32,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:22:32,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:22:32,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:22:32,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:22:32,912 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:22:32,912 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836899388] [2022-03-03 20:22:32,912 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836899388] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:22:32,912 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:22:32,912 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 20:22:32,912 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142977651] [2022-03-03 20:22:32,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:22:32,913 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-03-03 20:22:32,913 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:22:32,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-03-03 20:22:32,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2022-03-03 20:22:32,913 INFO L87 Difference]: Start difference. First operand 4304 states and 14546 transitions. Second operand has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:33,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:22:33,563 INFO L93 Difference]: Finished difference Result 4698 states and 15727 transitions. [2022-03-03 20:22:33,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-03 20:22:33,563 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:22:33,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:22:33,572 INFO L225 Difference]: With dead ends: 4698 [2022-03-03 20:22:33,573 INFO L226 Difference]: Without dead ends: 4622 [2022-03-03 20:22:33,573 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 342 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=177, Invalid=1545, Unknown=0, NotChecked=0, Total=1722 [2022-03-03 20:22:33,573 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 241 mSDsluCounter, 1027 mSDsCounter, 0 mSdLazyCounter, 1432 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 833 SdHoareTripleChecker+Invalid, 1465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 20:22:33,573 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [241 Valid, 833 Invalid, 1465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1432 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 20:22:33,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4622 states. [2022-03-03 20:22:33,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4622 to 4312. [2022-03-03 20:22:33,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4312 states, 4311 states have (on average 3.3778705636743216) internal successors, (14562), 4311 states have internal predecessors, (14562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:33,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4312 states to 4312 states and 14562 transitions. [2022-03-03 20:22:33,637 INFO L78 Accepts]: Start accepts. Automaton has 4312 states and 14562 transitions. Word has length 39 [2022-03-03 20:22:33,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:22:33,637 INFO L470 AbstractCegarLoop]: Abstraction has 4312 states and 14562 transitions. [2022-03-03 20:22:33,637 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:33,637 INFO L276 IsEmpty]: Start isEmpty. Operand 4312 states and 14562 transitions. [2022-03-03 20:22:33,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:22:33,644 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:22:33,644 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:22:33,644 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable202 [2022-03-03 20:22:33,644 INFO L402 AbstractCegarLoop]: === Iteration 204 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:22:33,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:22:33,645 INFO L85 PathProgramCache]: Analyzing trace with hash 545527610, now seen corresponding path program 204 times [2022-03-03 20:22:33,645 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:22:33,645 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333174656] [2022-03-03 20:22:33,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:22:33,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:22:33,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:22:33,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:22:33,799 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:22:33,799 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333174656] [2022-03-03 20:22:33,799 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333174656] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:22:33,799 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:22:33,799 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:22:33,799 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361430291] [2022-03-03 20:22:33,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:22:33,799 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:22:33,799 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:22:33,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:22:33,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:22:33,800 INFO L87 Difference]: Start difference. First operand 4312 states and 14562 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:34,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:22:34,497 INFO L93 Difference]: Finished difference Result 4680 states and 15673 transitions. [2022-03-03 20:22:34,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 20:22:34,497 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:22:34,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:22:34,506 INFO L225 Difference]: With dead ends: 4680 [2022-03-03 20:22:34,506 INFO L226 Difference]: Without dead ends: 4610 [2022-03-03 20:22:34,507 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 397 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=193, Invalid=1787, Unknown=0, NotChecked=0, Total=1980 [2022-03-03 20:22:34,507 INFO L933 BasicCegarLoop]: 101 mSDtfsCounter, 260 mSDsluCounter, 1153 mSDsCounter, 0 mSdLazyCounter, 1552 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 934 SdHoareTripleChecker+Invalid, 1593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1552 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 20:22:34,507 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [260 Valid, 934 Invalid, 1593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1552 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 20:22:34,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4610 states. [2022-03-03 20:22:34,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4610 to 4300. [2022-03-03 20:22:34,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4300 states, 4299 states have (on average 3.3807862293556643) internal successors, (14534), 4299 states have internal predecessors, (14534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:34,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4300 states to 4300 states and 14534 transitions. [2022-03-03 20:22:34,571 INFO L78 Accepts]: Start accepts. Automaton has 4300 states and 14534 transitions. Word has length 39 [2022-03-03 20:22:34,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:22:34,571 INFO L470 AbstractCegarLoop]: Abstraction has 4300 states and 14534 transitions. [2022-03-03 20:22:34,571 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:34,571 INFO L276 IsEmpty]: Start isEmpty. Operand 4300 states and 14534 transitions. [2022-03-03 20:22:34,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:22:34,577 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:22:34,577 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:22:34,577 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable203 [2022-03-03 20:22:34,577 INFO L402 AbstractCegarLoop]: === Iteration 205 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:22:34,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:22:34,578 INFO L85 PathProgramCache]: Analyzing trace with hash 1391711290, now seen corresponding path program 205 times [2022-03-03 20:22:34,578 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:22:34,578 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615970951] [2022-03-03 20:22:34,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:22:34,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:22:34,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:22:34,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:22:34,721 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:22:34,721 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615970951] [2022-03-03 20:22:34,721 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615970951] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:22:34,721 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:22:34,721 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:22:34,721 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132110289] [2022-03-03 20:22:34,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:22:34,722 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:22:34,722 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:22:34,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:22:34,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:22:34,722 INFO L87 Difference]: Start difference. First operand 4300 states and 14534 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:35,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:22:35,961 INFO L93 Difference]: Finished difference Result 6858 states and 23172 transitions. [2022-03-03 20:22:35,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-03-03 20:22:35,961 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:22:35,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:22:35,975 INFO L225 Difference]: With dead ends: 6858 [2022-03-03 20:22:35,975 INFO L226 Difference]: Without dead ends: 6815 [2022-03-03 20:22:35,976 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1182 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=380, Invalid=3910, Unknown=0, NotChecked=0, Total=4290 [2022-03-03 20:22:35,976 INFO L933 BasicCegarLoop]: 169 mSDtfsCounter, 481 mSDsluCounter, 1824 mSDsCounter, 0 mSdLazyCounter, 2331 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 481 SdHoareTripleChecker+Valid, 1697 SdHoareTripleChecker+Invalid, 2419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 2331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:22:35,976 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [481 Valid, 1697 Invalid, 2419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 2331 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:22:35,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6815 states. [2022-03-03 20:22:36,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6815 to 4326. [2022-03-03 20:22:36,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4326 states, 4325 states have (on average 3.3796531791907514) internal successors, (14617), 4325 states have internal predecessors, (14617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:36,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4326 states to 4326 states and 14617 transitions. [2022-03-03 20:22:36,054 INFO L78 Accepts]: Start accepts. Automaton has 4326 states and 14617 transitions. Word has length 39 [2022-03-03 20:22:36,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:22:36,054 INFO L470 AbstractCegarLoop]: Abstraction has 4326 states and 14617 transitions. [2022-03-03 20:22:36,055 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:36,055 INFO L276 IsEmpty]: Start isEmpty. Operand 4326 states and 14617 transitions. [2022-03-03 20:22:36,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:22:36,061 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:22:36,061 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:22:36,061 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable204 [2022-03-03 20:22:36,061 INFO L402 AbstractCegarLoop]: === Iteration 206 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:22:36,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:22:36,061 INFO L85 PathProgramCache]: Analyzing trace with hash -388887012, now seen corresponding path program 206 times [2022-03-03 20:22:36,061 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:22:36,061 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821696249] [2022-03-03 20:22:36,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:22:36,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:22:36,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:22:36,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:22:36,237 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:22:36,237 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821696249] [2022-03-03 20:22:36,237 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821696249] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:22:36,237 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:22:36,237 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:22:36,237 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136678630] [2022-03-03 20:22:36,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:22:36,237 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:22:36,237 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:22:36,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:22:36,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:22:36,238 INFO L87 Difference]: Start difference. First operand 4326 states and 14617 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:37,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:22:37,744 INFO L93 Difference]: Finished difference Result 7715 states and 26114 transitions. [2022-03-03 20:22:37,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2022-03-03 20:22:37,745 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:22:37,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:22:37,761 INFO L225 Difference]: With dead ends: 7715 [2022-03-03 20:22:37,761 INFO L226 Difference]: Without dead ends: 7663 [2022-03-03 20:22:37,785 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1544 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=429, Invalid=4827, Unknown=0, NotChecked=0, Total=5256 [2022-03-03 20:22:37,785 INFO L933 BasicCegarLoop]: 209 mSDtfsCounter, 523 mSDsluCounter, 2172 mSDsCounter, 0 mSdLazyCounter, 2713 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 523 SdHoareTripleChecker+Valid, 2087 SdHoareTripleChecker+Invalid, 2809 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 2713 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-03 20:22:37,785 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [523 Valid, 2087 Invalid, 2809 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 2713 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-03 20:22:37,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7663 states. [2022-03-03 20:22:37,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7663 to 4300. [2022-03-03 20:22:37,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4300 states, 4299 states have (on average 3.3807862293556643) internal successors, (14534), 4299 states have internal predecessors, (14534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:37,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4300 states to 4300 states and 14534 transitions. [2022-03-03 20:22:37,857 INFO L78 Accepts]: Start accepts. Automaton has 4300 states and 14534 transitions. Word has length 39 [2022-03-03 20:22:37,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:22:37,857 INFO L470 AbstractCegarLoop]: Abstraction has 4300 states and 14534 transitions. [2022-03-03 20:22:37,857 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:37,857 INFO L276 IsEmpty]: Start isEmpty. Operand 4300 states and 14534 transitions. [2022-03-03 20:22:37,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:22:37,863 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:22:37,864 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:22:37,864 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable205 [2022-03-03 20:22:37,864 INFO L402 AbstractCegarLoop]: === Iteration 207 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:22:37,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:22:37,864 INFO L85 PathProgramCache]: Analyzing trace with hash -1984772436, now seen corresponding path program 207 times [2022-03-03 20:22:37,864 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:22:37,864 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011236164] [2022-03-03 20:22:37,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:22:37,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:22:37,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:22:38,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:22:38,038 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:22:38,039 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011236164] [2022-03-03 20:22:38,039 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011236164] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:22:38,039 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:22:38,039 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:22:38,039 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596049069] [2022-03-03 20:22:38,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:22:38,039 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:22:38,039 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:22:38,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:22:38,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:22:38,039 INFO L87 Difference]: Start difference. First operand 4300 states and 14534 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:38,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:22:38,905 INFO L93 Difference]: Finished difference Result 6351 states and 21238 transitions. [2022-03-03 20:22:38,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-03-03 20:22:38,905 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:22:38,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:22:38,918 INFO L225 Difference]: With dead ends: 6351 [2022-03-03 20:22:38,918 INFO L226 Difference]: Without dead ends: 6296 [2022-03-03 20:22:38,918 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 512 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=232, Invalid=2120, Unknown=0, NotChecked=0, Total=2352 [2022-03-03 20:22:38,919 INFO L933 BasicCegarLoop]: 158 mSDtfsCounter, 376 mSDsluCounter, 1686 mSDsCounter, 0 mSdLazyCounter, 2032 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 376 SdHoareTripleChecker+Valid, 1551 SdHoareTripleChecker+Invalid, 2079 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 2032 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:22:38,919 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [376 Valid, 1551 Invalid, 2079 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 2032 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:22:38,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6296 states. [2022-03-03 20:22:38,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6296 to 4320. [2022-03-03 20:22:38,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4320 states, 4319 states have (on average 3.3804121324380643) internal successors, (14600), 4319 states have internal predecessors, (14600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:38,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4320 states to 4320 states and 14600 transitions. [2022-03-03 20:22:38,991 INFO L78 Accepts]: Start accepts. Automaton has 4320 states and 14600 transitions. Word has length 39 [2022-03-03 20:22:38,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:22:38,991 INFO L470 AbstractCegarLoop]: Abstraction has 4320 states and 14600 transitions. [2022-03-03 20:22:38,991 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:38,991 INFO L276 IsEmpty]: Start isEmpty. Operand 4320 states and 14600 transitions. [2022-03-03 20:22:38,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:22:38,998 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:22:38,998 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:22:38,998 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable206 [2022-03-03 20:22:38,998 INFO L402 AbstractCegarLoop]: === Iteration 208 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:22:38,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:22:38,998 INFO L85 PathProgramCache]: Analyzing trace with hash -812120214, now seen corresponding path program 208 times [2022-03-03 20:22:38,998 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:22:38,998 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303396204] [2022-03-03 20:22:38,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:22:38,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:22:39,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:22:39,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:22:39,185 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:22:39,185 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303396204] [2022-03-03 20:22:39,185 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303396204] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:22:39,185 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:22:39,185 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:22:39,185 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211474351] [2022-03-03 20:22:39,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:22:39,185 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:22:39,185 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:22:39,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:22:39,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:22:39,185 INFO L87 Difference]: Start difference. First operand 4320 states and 14600 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:40,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:22:40,473 INFO L93 Difference]: Finished difference Result 7052 states and 23686 transitions. [2022-03-03 20:22:40,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-03-03 20:22:40,473 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:22:40,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:22:40,488 INFO L225 Difference]: With dead ends: 7052 [2022-03-03 20:22:40,488 INFO L226 Difference]: Without dead ends: 6992 [2022-03-03 20:22:40,488 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 830 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=301, Invalid=3005, Unknown=0, NotChecked=0, Total=3306 [2022-03-03 20:22:40,488 INFO L933 BasicCegarLoop]: 198 mSDtfsCounter, 422 mSDsluCounter, 2043 mSDsCounter, 0 mSdLazyCounter, 2393 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 422 SdHoareTripleChecker+Valid, 1952 SdHoareTripleChecker+Invalid, 2453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 2393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-03 20:22:40,488 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [422 Valid, 1952 Invalid, 2453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 2393 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-03 20:22:40,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6992 states. [2022-03-03 20:22:40,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6992 to 4318. [2022-03-03 20:22:40,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4318 states, 4317 states have (on average 3.3808200138985405) internal successors, (14595), 4317 states have internal predecessors, (14595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:40,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4318 states to 4318 states and 14595 transitions. [2022-03-03 20:22:40,568 INFO L78 Accepts]: Start accepts. Automaton has 4318 states and 14595 transitions. Word has length 39 [2022-03-03 20:22:40,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:22:40,568 INFO L470 AbstractCegarLoop]: Abstraction has 4318 states and 14595 transitions. [2022-03-03 20:22:40,568 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:40,568 INFO L276 IsEmpty]: Start isEmpty. Operand 4318 states and 14595 transitions. [2022-03-03 20:22:40,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:22:40,575 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:22:40,575 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:22:40,575 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable207 [2022-03-03 20:22:40,575 INFO L402 AbstractCegarLoop]: === Iteration 209 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:22:40,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:22:40,575 INFO L85 PathProgramCache]: Analyzing trace with hash 1605443480, now seen corresponding path program 209 times [2022-03-03 20:22:40,575 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:22:40,575 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460854372] [2022-03-03 20:22:40,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:22:40,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:22:40,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:22:40,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:22:40,786 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:22:40,786 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460854372] [2022-03-03 20:22:40,786 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460854372] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:22:40,786 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:22:40,786 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:22:40,786 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011457460] [2022-03-03 20:22:40,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:22:40,786 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:22:40,786 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:22:40,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:22:40,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:22:40,786 INFO L87 Difference]: Start difference. First operand 4318 states and 14595 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:41,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:22:41,744 INFO L93 Difference]: Finished difference Result 6272 states and 21064 transitions. [2022-03-03 20:22:41,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-03 20:22:41,744 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:22:41,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:22:41,757 INFO L225 Difference]: With dead ends: 6272 [2022-03-03 20:22:41,758 INFO L226 Difference]: Without dead ends: 6181 [2022-03-03 20:22:41,758 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 447 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=209, Invalid=1953, Unknown=0, NotChecked=0, Total=2162 [2022-03-03 20:22:41,758 INFO L933 BasicCegarLoop]: 165 mSDtfsCounter, 353 mSDsluCounter, 1718 mSDsCounter, 0 mSdLazyCounter, 2006 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 353 SdHoareTripleChecker+Valid, 1619 SdHoareTripleChecker+Invalid, 2047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 2006 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:22:41,758 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [353 Valid, 1619 Invalid, 2047 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 2006 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:22:41,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6181 states. [2022-03-03 20:22:41,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6181 to 4318. [2022-03-03 20:22:41,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4318 states, 4317 states have (on average 3.3794301598332175) internal successors, (14589), 4317 states have internal predecessors, (14589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:41,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4318 states to 4318 states and 14589 transitions. [2022-03-03 20:22:41,840 INFO L78 Accepts]: Start accepts. Automaton has 4318 states and 14589 transitions. Word has length 39 [2022-03-03 20:22:41,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:22:41,840 INFO L470 AbstractCegarLoop]: Abstraction has 4318 states and 14589 transitions. [2022-03-03 20:22:41,840 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:41,840 INFO L276 IsEmpty]: Start isEmpty. Operand 4318 states and 14589 transitions. [2022-03-03 20:22:41,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:22:41,847 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:22:41,847 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:22:41,847 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable208 [2022-03-03 20:22:41,847 INFO L402 AbstractCegarLoop]: === Iteration 210 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:22:41,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:22:41,847 INFO L85 PathProgramCache]: Analyzing trace with hash 102961274, now seen corresponding path program 210 times [2022-03-03 20:22:41,847 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:22:41,847 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153102966] [2022-03-03 20:22:41,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:22:41,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:22:41,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:22:42,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:22:42,009 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:22:42,009 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153102966] [2022-03-03 20:22:42,009 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153102966] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:22:42,009 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:22:42,009 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:22:42,009 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638642965] [2022-03-03 20:22:42,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:22:42,009 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:22:42,009 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:22:42,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:22:42,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:22:42,010 INFO L87 Difference]: Start difference. First operand 4318 states and 14589 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:43,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:22:43,150 INFO L93 Difference]: Finished difference Result 7142 states and 24051 transitions. [2022-03-03 20:22:43,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-03-03 20:22:43,150 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:22:43,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:22:43,166 INFO L225 Difference]: With dead ends: 7142 [2022-03-03 20:22:43,166 INFO L226 Difference]: Without dead ends: 7042 [2022-03-03 20:22:43,166 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 870 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=303, Invalid=3119, Unknown=0, NotChecked=0, Total=3422 [2022-03-03 20:22:43,167 INFO L933 BasicCegarLoop]: 222 mSDtfsCounter, 415 mSDsluCounter, 2226 mSDsCounter, 0 mSdLazyCounter, 2598 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 415 SdHoareTripleChecker+Valid, 2166 SdHoareTripleChecker+Invalid, 2661 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 2598 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:22:43,167 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [415 Valid, 2166 Invalid, 2661 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 2598 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:22:43,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7042 states. [2022-03-03 20:22:43,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7042 to 4300. [2022-03-03 20:22:43,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4300 states, 4299 states have (on average 3.3793905559432424) internal successors, (14528), 4299 states have internal predecessors, (14528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:43,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4300 states to 4300 states and 14528 transitions. [2022-03-03 20:22:43,254 INFO L78 Accepts]: Start accepts. Automaton has 4300 states and 14528 transitions. Word has length 39 [2022-03-03 20:22:43,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:22:43,254 INFO L470 AbstractCegarLoop]: Abstraction has 4300 states and 14528 transitions. [2022-03-03 20:22:43,254 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:43,254 INFO L276 IsEmpty]: Start isEmpty. Operand 4300 states and 14528 transitions. [2022-03-03 20:22:43,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:22:43,261 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:22:43,261 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:22:43,261 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable209 [2022-03-03 20:22:43,261 INFO L402 AbstractCegarLoop]: === Iteration 211 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:22:43,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:22:43,262 INFO L85 PathProgramCache]: Analyzing trace with hash -133663722, now seen corresponding path program 211 times [2022-03-03 20:22:43,262 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:22:43,262 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116591474] [2022-03-03 20:22:43,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:22:43,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:22:43,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:22:43,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:22:43,481 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:22:43,481 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116591474] [2022-03-03 20:22:43,481 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116591474] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:22:43,481 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:22:43,481 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 20:22:43,481 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833290956] [2022-03-03 20:22:43,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:22:43,481 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-03-03 20:22:43,481 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:22:43,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-03-03 20:22:43,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2022-03-03 20:22:43,482 INFO L87 Difference]: Start difference. First operand 4300 states and 14528 transitions. Second operand has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:44,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:22:44,126 INFO L93 Difference]: Finished difference Result 4629 states and 15530 transitions. [2022-03-03 20:22:44,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-03-03 20:22:44,127 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:22:44,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:22:44,136 INFO L225 Difference]: With dead ends: 4629 [2022-03-03 20:22:44,136 INFO L226 Difference]: Without dead ends: 4553 [2022-03-03 20:22:44,136 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 291 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=162, Invalid=1398, Unknown=0, NotChecked=0, Total=1560 [2022-03-03 20:22:44,137 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 215 mSDsluCounter, 1015 mSDsCounter, 0 mSdLazyCounter, 1408 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 830 SdHoareTripleChecker+Invalid, 1435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 20:22:44,137 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [215 Valid, 830 Invalid, 1435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1408 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 20:22:44,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4553 states. [2022-03-03 20:22:44,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4553 to 4332. [2022-03-03 20:22:44,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4332 states, 4331 states have (on average 3.3747402447471715) internal successors, (14616), 4331 states have internal predecessors, (14616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:44,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4332 states to 4332 states and 14616 transitions. [2022-03-03 20:22:44,216 INFO L78 Accepts]: Start accepts. Automaton has 4332 states and 14616 transitions. Word has length 39 [2022-03-03 20:22:44,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:22:44,216 INFO L470 AbstractCegarLoop]: Abstraction has 4332 states and 14616 transitions. [2022-03-03 20:22:44,216 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:44,216 INFO L276 IsEmpty]: Start isEmpty. Operand 4332 states and 14616 transitions. [2022-03-03 20:22:44,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:22:44,223 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:22:44,223 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:22:44,223 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable210 [2022-03-03 20:22:44,223 INFO L402 AbstractCegarLoop]: === Iteration 212 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:22:44,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:22:44,224 INFO L85 PathProgramCache]: Analyzing trace with hash -1151717334, now seen corresponding path program 212 times [2022-03-03 20:22:44,224 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:22:44,224 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595839105] [2022-03-03 20:22:44,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:22:44,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:22:44,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:22:44,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:22:44,400 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:22:44,400 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595839105] [2022-03-03 20:22:44,400 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595839105] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:22:44,400 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:22:44,400 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:22:44,400 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804092315] [2022-03-03 20:22:44,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:22:44,400 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:22:44,400 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:22:44,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:22:44,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:22:44,401 INFO L87 Difference]: Start difference. First operand 4332 states and 14616 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:45,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:22:45,099 INFO L93 Difference]: Finished difference Result 4611 states and 15476 transitions. [2022-03-03 20:22:45,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-03-03 20:22:45,100 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:22:45,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:22:45,109 INFO L225 Difference]: With dead ends: 4611 [2022-03-03 20:22:45,109 INFO L226 Difference]: Without dead ends: 4545 [2022-03-03 20:22:45,110 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 341 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=178, Invalid=1628, Unknown=0, NotChecked=0, Total=1806 [2022-03-03 20:22:45,110 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 242 mSDsluCounter, 1099 mSDsCounter, 0 mSdLazyCounter, 1496 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 914 SdHoareTripleChecker+Invalid, 1532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 20:22:45,110 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [242 Valid, 914 Invalid, 1532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1496 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 20:22:45,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4545 states. [2022-03-03 20:22:45,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4545 to 4324. [2022-03-03 20:22:45,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4324 states, 4323 states have (on average 3.375433726578765) internal successors, (14592), 4323 states have internal predecessors, (14592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:45,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4324 states to 4324 states and 14592 transitions. [2022-03-03 20:22:45,178 INFO L78 Accepts]: Start accepts. Automaton has 4324 states and 14592 transitions. Word has length 39 [2022-03-03 20:22:45,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:22:45,178 INFO L470 AbstractCegarLoop]: Abstraction has 4324 states and 14592 transitions. [2022-03-03 20:22:45,178 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:45,178 INFO L276 IsEmpty]: Start isEmpty. Operand 4324 states and 14592 transitions. [2022-03-03 20:22:45,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:22:45,184 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:22:45,185 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:22:45,185 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable211 [2022-03-03 20:22:45,185 INFO L402 AbstractCegarLoop]: === Iteration 213 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:22:45,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:22:45,185 INFO L85 PathProgramCache]: Analyzing trace with hash -1433982988, now seen corresponding path program 213 times [2022-03-03 20:22:45,185 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:22:45,185 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291414938] [2022-03-03 20:22:45,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:22:45,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:22:45,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:22:45,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:22:45,403 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:22:45,403 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291414938] [2022-03-03 20:22:45,403 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291414938] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:22:45,403 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:22:45,403 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:22:45,403 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256011303] [2022-03-03 20:22:45,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:22:45,404 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:22:45,404 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:22:45,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:22:45,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:22:45,404 INFO L87 Difference]: Start difference. First operand 4324 states and 14592 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:46,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:22:46,340 INFO L93 Difference]: Finished difference Result 4632 states and 15529 transitions. [2022-03-03 20:22:46,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-03-03 20:22:46,340 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:22:46,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:22:46,349 INFO L225 Difference]: With dead ends: 4632 [2022-03-03 20:22:46,349 INFO L226 Difference]: Without dead ends: 4470 [2022-03-03 20:22:46,350 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 340 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=178, Invalid=1628, Unknown=0, NotChecked=0, Total=1806 [2022-03-03 20:22:46,350 INFO L933 BasicCegarLoop]: 105 mSDtfsCounter, 234 mSDsluCounter, 1156 mSDsCounter, 0 mSdLazyCounter, 1499 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 979 SdHoareTripleChecker+Invalid, 1533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:22:46,350 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [234 Valid, 979 Invalid, 1533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1499 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:22:46,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4470 states. [2022-03-03 20:22:46,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4470 to 4256. [2022-03-03 20:22:46,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4256 states, 4255 states have (on average 3.38331374853114) internal successors, (14396), 4255 states have internal predecessors, (14396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:46,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4256 states to 4256 states and 14396 transitions. [2022-03-03 20:22:46,440 INFO L78 Accepts]: Start accepts. Automaton has 4256 states and 14396 transitions. Word has length 39 [2022-03-03 20:22:46,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:22:46,440 INFO L470 AbstractCegarLoop]: Abstraction has 4256 states and 14396 transitions. [2022-03-03 20:22:46,440 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:46,440 INFO L276 IsEmpty]: Start isEmpty. Operand 4256 states and 14396 transitions. [2022-03-03 20:22:46,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:22:46,446 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:22:46,446 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:22:46,446 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable212 [2022-03-03 20:22:46,447 INFO L402 AbstractCegarLoop]: === Iteration 214 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:22:46,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:22:46,447 INFO L85 PathProgramCache]: Analyzing trace with hash 755420440, now seen corresponding path program 214 times [2022-03-03 20:22:46,447 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:22:46,447 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235766200] [2022-03-03 20:22:46,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:22:46,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:22:46,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:22:46,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:22:46,667 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:22:46,667 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235766200] [2022-03-03 20:22:46,667 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235766200] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:22:46,667 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:22:46,667 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:22:46,667 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686600955] [2022-03-03 20:22:46,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:22:46,667 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:22:46,667 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:22:46,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:22:46,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:22:46,668 INFO L87 Difference]: Start difference. First operand 4256 states and 14396 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:48,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:22:48,260 INFO L93 Difference]: Finished difference Result 5381 states and 18242 transitions. [2022-03-03 20:22:48,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-03-03 20:22:48,260 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:22:48,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:22:48,271 INFO L225 Difference]: With dead ends: 5381 [2022-03-03 20:22:48,272 INFO L226 Difference]: Without dead ends: 5314 [2022-03-03 20:22:48,272 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 913 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=340, Invalid=3200, Unknown=0, NotChecked=0, Total=3540 [2022-03-03 20:22:48,272 INFO L933 BasicCegarLoop]: 132 mSDtfsCounter, 289 mSDsluCounter, 1363 mSDsCounter, 0 mSdLazyCounter, 2075 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 1174 SdHoareTripleChecker+Invalid, 2139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 2075 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-03 20:22:48,272 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [289 Valid, 1174 Invalid, 2139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 2075 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-03 20:22:48,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5314 states. [2022-03-03 20:22:48,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5314 to 4394. [2022-03-03 20:22:48,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4394 states, 4393 states have (on average 3.3808331436376053) internal successors, (14852), 4393 states have internal predecessors, (14852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:48,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4394 states to 4394 states and 14852 transitions. [2022-03-03 20:22:48,346 INFO L78 Accepts]: Start accepts. Automaton has 4394 states and 14852 transitions. Word has length 39 [2022-03-03 20:22:48,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:22:48,347 INFO L470 AbstractCegarLoop]: Abstraction has 4394 states and 14852 transitions. [2022-03-03 20:22:48,347 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:48,347 INFO L276 IsEmpty]: Start isEmpty. Operand 4394 states and 14852 transitions. [2022-03-03 20:22:48,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:22:48,353 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:22:48,353 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:22:48,353 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable213 [2022-03-03 20:22:48,353 INFO L402 AbstractCegarLoop]: === Iteration 215 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:22:48,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:22:48,354 INFO L85 PathProgramCache]: Analyzing trace with hash -964195530, now seen corresponding path program 215 times [2022-03-03 20:22:48,354 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:22:48,354 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814781939] [2022-03-03 20:22:48,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:22:48,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:22:48,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:22:48,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:22:48,576 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:22:48,576 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814781939] [2022-03-03 20:22:48,576 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814781939] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:22:48,576 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:22:48,576 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:22:48,576 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835763718] [2022-03-03 20:22:48,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:22:48,576 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:22:48,576 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:22:48,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:22:48,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:22:48,577 INFO L87 Difference]: Start difference. First operand 4394 states and 14852 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:50,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:22:50,338 INFO L93 Difference]: Finished difference Result 5477 states and 18503 transitions. [2022-03-03 20:22:50,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-03-03 20:22:50,338 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:22:50,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:22:50,349 INFO L225 Difference]: With dead ends: 5477 [2022-03-03 20:22:50,349 INFO L226 Difference]: Without dead ends: 5434 [2022-03-03 20:22:50,349 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1586 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=476, Invalid=4926, Unknown=0, NotChecked=0, Total=5402 [2022-03-03 20:22:50,350 INFO L933 BasicCegarLoop]: 130 mSDtfsCounter, 355 mSDsluCounter, 1450 mSDsCounter, 0 mSdLazyCounter, 2357 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 355 SdHoareTripleChecker+Valid, 1241 SdHoareTripleChecker+Invalid, 2442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 2357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-03 20:22:50,350 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [355 Valid, 1241 Invalid, 2442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 2357 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-03 20:22:50,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5434 states. [2022-03-03 20:22:50,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5434 to 4400. [2022-03-03 20:22:50,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4400 states, 4399 states have (on average 3.3791770857012957) internal successors, (14865), 4399 states have internal predecessors, (14865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:50,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4400 states to 4400 states and 14865 transitions. [2022-03-03 20:22:50,419 INFO L78 Accepts]: Start accepts. Automaton has 4400 states and 14865 transitions. Word has length 39 [2022-03-03 20:22:50,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:22:50,419 INFO L470 AbstractCegarLoop]: Abstraction has 4400 states and 14865 transitions. [2022-03-03 20:22:50,419 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:50,420 INFO L276 IsEmpty]: Start isEmpty. Operand 4400 states and 14865 transitions. [2022-03-03 20:22:50,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:22:50,426 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:22:50,426 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:22:50,426 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable214 [2022-03-03 20:22:50,426 INFO L402 AbstractCegarLoop]: === Iteration 216 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:22:50,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:22:50,426 INFO L85 PathProgramCache]: Analyzing trace with hash 1550173464, now seen corresponding path program 216 times [2022-03-03 20:22:50,426 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:22:50,426 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033670100] [2022-03-03 20:22:50,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:22:50,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:22:50,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:22:50,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:22:50,585 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:22:50,585 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033670100] [2022-03-03 20:22:50,585 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033670100] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:22:50,586 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:22:50,586 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:22:50,586 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049470091] [2022-03-03 20:22:50,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:22:50,586 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:22:50,586 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:22:50,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:22:50,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:22:50,586 INFO L87 Difference]: Start difference. First operand 4400 states and 14865 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:52,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:22:52,292 INFO L93 Difference]: Finished difference Result 5408 states and 18323 transitions. [2022-03-03 20:22:52,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-03-03 20:22:52,292 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:22:52,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:22:52,326 INFO L225 Difference]: With dead ends: 5408 [2022-03-03 20:22:52,327 INFO L226 Difference]: Without dead ends: 5344 [2022-03-03 20:22:52,327 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1528 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=469, Invalid=4787, Unknown=0, NotChecked=0, Total=5256 [2022-03-03 20:22:52,327 INFO L933 BasicCegarLoop]: 126 mSDtfsCounter, 332 mSDsluCounter, 1407 mSDsCounter, 0 mSdLazyCounter, 2290 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 332 SdHoareTripleChecker+Valid, 1207 SdHoareTripleChecker+Invalid, 2373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 2290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-03 20:22:52,327 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [332 Valid, 1207 Invalid, 2373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 2290 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-03 20:22:52,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5344 states. [2022-03-03 20:22:52,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5344 to 4382. [2022-03-03 20:22:52,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4382 states, 4381 states have (on average 3.381419767176444) internal successors, (14814), 4381 states have internal predecessors, (14814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:52,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4382 states to 4382 states and 14814 transitions. [2022-03-03 20:22:52,402 INFO L78 Accepts]: Start accepts. Automaton has 4382 states and 14814 transitions. Word has length 39 [2022-03-03 20:22:52,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:22:52,402 INFO L470 AbstractCegarLoop]: Abstraction has 4382 states and 14814 transitions. [2022-03-03 20:22:52,402 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:52,402 INFO L276 IsEmpty]: Start isEmpty. Operand 4382 states and 14814 transitions. [2022-03-03 20:22:52,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:22:52,409 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:22:52,409 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:22:52,409 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable215 [2022-03-03 20:22:52,409 INFO L402 AbstractCegarLoop]: === Iteration 217 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:22:52,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:22:52,410 INFO L85 PathProgramCache]: Analyzing trace with hash 1141357848, now seen corresponding path program 217 times [2022-03-03 20:22:52,410 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:22:52,410 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52682888] [2022-03-03 20:22:52,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:22:52,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:22:52,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:22:52,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:22:52,556 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:22:52,556 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52682888] [2022-03-03 20:22:52,556 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52682888] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:22:52,556 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:22:52,556 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:22:52,556 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110798508] [2022-03-03 20:22:52,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:22:52,557 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:22:52,557 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:22:52,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:22:52,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:22:52,557 INFO L87 Difference]: Start difference. First operand 4382 states and 14814 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:54,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:22:54,190 INFO L93 Difference]: Finished difference Result 5411 states and 18300 transitions. [2022-03-03 20:22:54,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-03 20:22:54,190 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:22:54,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:22:54,201 INFO L225 Difference]: With dead ends: 5411 [2022-03-03 20:22:54,201 INFO L226 Difference]: Without dead ends: 5281 [2022-03-03 20:22:54,202 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1268 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=402, Invalid=4154, Unknown=0, NotChecked=0, Total=4556 [2022-03-03 20:22:54,202 INFO L933 BasicCegarLoop]: 139 mSDtfsCounter, 323 mSDsluCounter, 1502 mSDsCounter, 0 mSdLazyCounter, 2436 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 323 SdHoareTripleChecker+Valid, 1282 SdHoareTripleChecker+Invalid, 2513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 2436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-03 20:22:54,202 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [323 Valid, 1282 Invalid, 2513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 2436 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-03 20:22:54,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5281 states. [2022-03-03 20:22:54,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5281 to 4358. [2022-03-03 20:22:54,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4358 states, 4357 states have (on average 3.3835207711728255) internal successors, (14742), 4357 states have internal predecessors, (14742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:54,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4358 states to 4358 states and 14742 transitions. [2022-03-03 20:22:54,274 INFO L78 Accepts]: Start accepts. Automaton has 4358 states and 14742 transitions. Word has length 39 [2022-03-03 20:22:54,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:22:54,274 INFO L470 AbstractCegarLoop]: Abstraction has 4358 states and 14742 transitions. [2022-03-03 20:22:54,274 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:54,274 INFO L276 IsEmpty]: Start isEmpty. Operand 4358 states and 14742 transitions. [2022-03-03 20:22:54,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:22:54,280 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:22:54,280 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:22:54,280 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable216 [2022-03-03 20:22:54,281 INFO L402 AbstractCegarLoop]: === Iteration 218 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:22:54,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:22:54,281 INFO L85 PathProgramCache]: Analyzing trace with hash -1315657596, now seen corresponding path program 218 times [2022-03-03 20:22:54,281 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:22:54,281 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114105413] [2022-03-03 20:22:54,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:22:54,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:22:54,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:22:54,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:22:54,516 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:22:54,516 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114105413] [2022-03-03 20:22:54,516 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114105413] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:22:54,516 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:22:54,516 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:22:54,516 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217813085] [2022-03-03 20:22:54,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:22:54,517 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:22:54,517 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:22:54,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:22:54,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:22:54,517 INFO L87 Difference]: Start difference. First operand 4358 states and 14742 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:56,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:22:56,116 INFO L93 Difference]: Finished difference Result 5465 states and 18464 transitions. [2022-03-03 20:22:56,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-03-03 20:22:56,116 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:22:56,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:22:56,128 INFO L225 Difference]: With dead ends: 5465 [2022-03-03 20:22:56,128 INFO L226 Difference]: Without dead ends: 5398 [2022-03-03 20:22:56,129 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1278 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=427, Invalid=4265, Unknown=0, NotChecked=0, Total=4692 [2022-03-03 20:22:56,129 INFO L933 BasicCegarLoop]: 138 mSDtfsCounter, 309 mSDsluCounter, 1572 mSDsCounter, 0 mSdLazyCounter, 2272 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 309 SdHoareTripleChecker+Valid, 1363 SdHoareTripleChecker+Invalid, 2351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 2272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-03 20:22:56,129 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [309 Valid, 1363 Invalid, 2351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 2272 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-03 20:22:56,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5398 states. [2022-03-03 20:22:56,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5398 to 4392. [2022-03-03 20:22:56,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4392 states, 4391 states have (on average 3.3823730357549535) internal successors, (14852), 4391 states have internal predecessors, (14852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:56,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4392 states to 4392 states and 14852 transitions. [2022-03-03 20:22:56,210 INFO L78 Accepts]: Start accepts. Automaton has 4392 states and 14852 transitions. Word has length 39 [2022-03-03 20:22:56,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:22:56,211 INFO L470 AbstractCegarLoop]: Abstraction has 4392 states and 14852 transitions. [2022-03-03 20:22:56,211 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:56,211 INFO L276 IsEmpty]: Start isEmpty. Operand 4392 states and 14852 transitions. [2022-03-03 20:22:56,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:22:56,218 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:22:56,218 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:22:56,218 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable217 [2022-03-03 20:22:56,218 INFO L402 AbstractCegarLoop]: === Iteration 219 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:22:56,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:22:56,218 INFO L85 PathProgramCache]: Analyzing trace with hash 1259693730, now seen corresponding path program 219 times [2022-03-03 20:22:56,218 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:22:56,218 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067301465] [2022-03-03 20:22:56,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:22:56,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:22:56,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:22:56,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:22:56,455 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:22:56,455 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067301465] [2022-03-03 20:22:56,455 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067301465] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:22:56,455 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:22:56,455 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:22:56,455 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339037625] [2022-03-03 20:22:56,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:22:56,455 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:22:56,455 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:22:56,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:22:56,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:22:56,455 INFO L87 Difference]: Start difference. First operand 4392 states and 14852 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:58,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:22:58,537 INFO L93 Difference]: Finished difference Result 5594 states and 18791 transitions. [2022-03-03 20:22:58,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2022-03-03 20:22:58,538 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:22:58,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:22:58,549 INFO L225 Difference]: With dead ends: 5594 [2022-03-03 20:22:58,549 INFO L226 Difference]: Without dead ends: 5551 [2022-03-03 20:22:58,549 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2061 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=570, Invalid=6236, Unknown=0, NotChecked=0, Total=6806 [2022-03-03 20:22:58,550 INFO L933 BasicCegarLoop]: 135 mSDtfsCounter, 375 mSDsluCounter, 1669 mSDsCounter, 0 mSdLazyCounter, 2571 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 1431 SdHoareTripleChecker+Invalid, 2672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 2571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 20:22:58,550 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [375 Valid, 1431 Invalid, 2672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 2571 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 20:22:58,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5551 states. [2022-03-03 20:22:58,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5551 to 4398. [2022-03-03 20:22:58,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4398 states, 4397 states have (on average 3.380714123265863) internal successors, (14865), 4397 states have internal predecessors, (14865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:58,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4398 states to 4398 states and 14865 transitions. [2022-03-03 20:22:58,622 INFO L78 Accepts]: Start accepts. Automaton has 4398 states and 14865 transitions. Word has length 39 [2022-03-03 20:22:58,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:22:58,622 INFO L470 AbstractCegarLoop]: Abstraction has 4398 states and 14865 transitions. [2022-03-03 20:22:58,622 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:22:58,622 INFO L276 IsEmpty]: Start isEmpty. Operand 4398 states and 14865 transitions. [2022-03-03 20:22:58,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:22:58,629 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:22:58,629 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:22:58,629 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable218 [2022-03-03 20:22:58,629 INFO L402 AbstractCegarLoop]: === Iteration 220 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:22:58,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:22:58,629 INFO L85 PathProgramCache]: Analyzing trace with hash -520904572, now seen corresponding path program 220 times [2022-03-03 20:22:58,629 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:22:58,629 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461263733] [2022-03-03 20:22:58,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:22:58,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:22:58,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:22:58,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:22:58,866 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:22:58,866 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461263733] [2022-03-03 20:22:58,866 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461263733] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:22:58,866 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:22:58,866 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:22:58,866 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700744471] [2022-03-03 20:22:58,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:22:58,866 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:22:58,866 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:22:58,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:22:58,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:22:58,866 INFO L87 Difference]: Start difference. First operand 4398 states and 14865 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:23:01,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:23:01,071 INFO L93 Difference]: Finished difference Result 5525 states and 18611 transitions. [2022-03-03 20:23:01,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2022-03-03 20:23:01,071 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:23:01,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:23:01,082 INFO L225 Difference]: With dead ends: 5525 [2022-03-03 20:23:01,082 INFO L226 Difference]: Without dead ends: 5461 [2022-03-03 20:23:01,083 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1872 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=544, Invalid=5776, Unknown=0, NotChecked=0, Total=6320 [2022-03-03 20:23:01,083 INFO L933 BasicCegarLoop]: 128 mSDtfsCounter, 356 mSDsluCounter, 1606 mSDsCounter, 0 mSdLazyCounter, 2491 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 356 SdHoareTripleChecker+Valid, 1373 SdHoareTripleChecker+Invalid, 2588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 2491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-03 20:23:01,083 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [356 Valid, 1373 Invalid, 2588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 2491 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-03 20:23:01,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5461 states. [2022-03-03 20:23:01,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5461 to 4376. [2022-03-03 20:23:01,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4376 states, 4375 states have (on average 3.3856) internal successors, (14812), 4375 states have internal predecessors, (14812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:23:01,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4376 states to 4376 states and 14812 transitions. [2022-03-03 20:23:01,151 INFO L78 Accepts]: Start accepts. Automaton has 4376 states and 14812 transitions. Word has length 39 [2022-03-03 20:23:01,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:23:01,151 INFO L470 AbstractCegarLoop]: Abstraction has 4376 states and 14812 transitions. [2022-03-03 20:23:01,151 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:23:01,151 INFO L276 IsEmpty]: Start isEmpty. Operand 4376 states and 14812 transitions. [2022-03-03 20:23:01,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:23:01,158 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:23:01,158 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:23:01,158 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable219 [2022-03-03 20:23:01,158 INFO L402 AbstractCegarLoop]: === Iteration 221 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:23:01,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:23:01,158 INFO L85 PathProgramCache]: Analyzing trace with hash 99529828, now seen corresponding path program 221 times [2022-03-03 20:23:01,158 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:23:01,158 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933984091] [2022-03-03 20:23:01,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:23:01,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:23:01,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:23:01,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:23:01,359 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:23:01,359 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933984091] [2022-03-03 20:23:01,359 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933984091] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:23:01,359 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:23:01,359 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:23:01,359 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075797621] [2022-03-03 20:23:01,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:23:01,359 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:23:01,359 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:23:01,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:23:01,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:23:01,360 INFO L87 Difference]: Start difference. First operand 4376 states and 14812 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:23:02,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:23:02,700 INFO L93 Difference]: Finished difference Result 5361 states and 18138 transitions. [2022-03-03 20:23:02,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-03-03 20:23:02,700 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:23:02,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:23:02,712 INFO L225 Difference]: With dead ends: 5361 [2022-03-03 20:23:02,712 INFO L226 Difference]: Without dead ends: 5294 [2022-03-03 20:23:02,712 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 908 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=346, Invalid=3314, Unknown=0, NotChecked=0, Total=3660 [2022-03-03 20:23:02,712 INFO L933 BasicCegarLoop]: 124 mSDtfsCounter, 281 mSDsluCounter, 1468 mSDsCounter, 0 mSdLazyCounter, 2102 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 281 SdHoareTripleChecker+Valid, 1216 SdHoareTripleChecker+Invalid, 2167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 2102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:23:02,713 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [281 Valid, 1216 Invalid, 2167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 2102 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:23:02,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5294 states. [2022-03-03 20:23:02,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5294 to 4388. [2022-03-03 20:23:02,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4388 states, 4387 states have (on average 3.3822657852746754) internal successors, (14838), 4387 states have internal predecessors, (14838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:23:02,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4388 states to 4388 states and 14838 transitions. [2022-03-03 20:23:02,795 INFO L78 Accepts]: Start accepts. Automaton has 4388 states and 14838 transitions. Word has length 39 [2022-03-03 20:23:02,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:23:02,795 INFO L470 AbstractCegarLoop]: Abstraction has 4388 states and 14838 transitions. [2022-03-03 20:23:02,795 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:23:02,795 INFO L276 IsEmpty]: Start isEmpty. Operand 4388 states and 14838 transitions. [2022-03-03 20:23:02,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:23:02,802 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:23:02,802 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:23:02,802 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable220 [2022-03-03 20:23:02,802 INFO L402 AbstractCegarLoop]: === Iteration 222 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:23:02,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:23:02,802 INFO L85 PathProgramCache]: Analyzing trace with hash -31065020, now seen corresponding path program 222 times [2022-03-03 20:23:02,802 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:23:02,802 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775690229] [2022-03-03 20:23:02,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:23:02,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:23:02,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:23:02,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:23:02,960 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:23:02,960 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775690229] [2022-03-03 20:23:02,960 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775690229] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:23:02,960 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:23:02,960 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:23:02,960 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026966151] [2022-03-03 20:23:02,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:23:02,961 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:23:02,961 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:23:02,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:23:02,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:23:02,961 INFO L87 Difference]: Start difference. First operand 4388 states and 14838 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:23:04,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:23:04,121 INFO L93 Difference]: Finished difference Result 5370 states and 18122 transitions. [2022-03-03 20:23:04,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-03-03 20:23:04,121 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:23:04,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:23:04,133 INFO L225 Difference]: With dead ends: 5370 [2022-03-03 20:23:04,133 INFO L226 Difference]: Without dead ends: 5307 [2022-03-03 20:23:04,133 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 951 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=352, Invalid=3430, Unknown=0, NotChecked=0, Total=3782 [2022-03-03 20:23:04,134 INFO L933 BasicCegarLoop]: 122 mSDtfsCounter, 298 mSDsluCounter, 1475 mSDsCounter, 0 mSdLazyCounter, 2039 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 1229 SdHoareTripleChecker+Invalid, 2104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 2039 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:23:04,134 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [298 Valid, 1229 Invalid, 2104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 2039 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:23:04,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5307 states. [2022-03-03 20:23:04,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5307 to 4380. [2022-03-03 20:23:04,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4380 states, 4379 states have (on average 3.3838775976250286) internal successors, (14818), 4379 states have internal predecessors, (14818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:23:04,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4380 states to 4380 states and 14818 transitions. [2022-03-03 20:23:04,217 INFO L78 Accepts]: Start accepts. Automaton has 4380 states and 14818 transitions. Word has length 39 [2022-03-03 20:23:04,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:23:04,217 INFO L470 AbstractCegarLoop]: Abstraction has 4380 states and 14818 transitions. [2022-03-03 20:23:04,217 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:23:04,217 INFO L276 IsEmpty]: Start isEmpty. Operand 4380 states and 14818 transitions. [2022-03-03 20:23:04,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:23:04,224 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:23:04,224 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:23:04,225 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable221 [2022-03-03 20:23:04,225 INFO L402 AbstractCegarLoop]: === Iteration 223 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:23:04,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:23:04,225 INFO L85 PathProgramCache]: Analyzing trace with hash -166743612, now seen corresponding path program 223 times [2022-03-03 20:23:04,225 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:23:04,225 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502138813] [2022-03-03 20:23:04,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:23:04,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:23:04,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:23:04,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:23:04,425 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:23:04,425 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502138813] [2022-03-03 20:23:04,426 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502138813] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:23:04,426 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:23:04,426 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:23:04,426 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192942596] [2022-03-03 20:23:04,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:23:04,426 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:23:04,426 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:23:04,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:23:04,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:23:04,426 INFO L87 Difference]: Start difference. First operand 4380 states and 14818 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:23:06,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:23:06,551 INFO L93 Difference]: Finished difference Result 5537 states and 18547 transitions. [2022-03-03 20:23:06,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2022-03-03 20:23:06,551 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:23:06,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:23:06,561 INFO L225 Difference]: With dead ends: 5537 [2022-03-03 20:23:06,562 INFO L226 Difference]: Without dead ends: 5494 [2022-03-03 20:23:06,562 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1694 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=519, Invalid=5333, Unknown=0, NotChecked=0, Total=5852 [2022-03-03 20:23:06,562 INFO L933 BasicCegarLoop]: 119 mSDtfsCounter, 361 mSDsluCounter, 1519 mSDsCounter, 0 mSdLazyCounter, 2309 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 361 SdHoareTripleChecker+Valid, 1245 SdHoareTripleChecker+Invalid, 2401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 2309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 20:23:06,562 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [361 Valid, 1245 Invalid, 2401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 2309 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 20:23:06,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5494 states. [2022-03-03 20:23:06,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5494 to 4388. [2022-03-03 20:23:06,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4388 states, 4387 states have (on average 3.3822657852746754) internal successors, (14838), 4387 states have internal predecessors, (14838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:23:06,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4388 states to 4388 states and 14838 transitions. [2022-03-03 20:23:06,630 INFO L78 Accepts]: Start accepts. Automaton has 4388 states and 14838 transitions. Word has length 39 [2022-03-03 20:23:06,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:23:06,630 INFO L470 AbstractCegarLoop]: Abstraction has 4388 states and 14838 transitions. [2022-03-03 20:23:06,630 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:23:06,630 INFO L276 IsEmpty]: Start isEmpty. Operand 4388 states and 14838 transitions. [2022-03-03 20:23:06,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:23:06,637 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:23:06,637 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:23:06,637 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable222 [2022-03-03 20:23:06,637 INFO L402 AbstractCegarLoop]: === Iteration 224 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:23:06,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:23:06,637 INFO L85 PathProgramCache]: Analyzing trace with hash -1947341914, now seen corresponding path program 224 times [2022-03-03 20:23:06,637 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:23:06,637 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525519304] [2022-03-03 20:23:06,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:23:06,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:23:06,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:23:06,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:23:06,837 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:23:06,837 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525519304] [2022-03-03 20:23:06,837 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525519304] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:23:06,837 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:23:06,837 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:23:06,837 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042332414] [2022-03-03 20:23:06,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:23:06,838 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:23:06,838 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:23:06,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:23:06,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:23:06,838 INFO L87 Difference]: Start difference. First operand 4388 states and 14838 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:23:08,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:23:08,868 INFO L93 Difference]: Finished difference Result 5525 states and 18509 transitions. [2022-03-03 20:23:08,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-03-03 20:23:08,869 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:23:08,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:23:08,880 INFO L225 Difference]: With dead ends: 5525 [2022-03-03 20:23:08,880 INFO L226 Difference]: Without dead ends: 5473 [2022-03-03 20:23:08,881 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1636 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=511, Invalid=5189, Unknown=0, NotChecked=0, Total=5700 [2022-03-03 20:23:08,881 INFO L933 BasicCegarLoop]: 117 mSDtfsCounter, 361 mSDsluCounter, 1491 mSDsCounter, 0 mSdLazyCounter, 2283 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 361 SdHoareTripleChecker+Valid, 1228 SdHoareTripleChecker+Invalid, 2371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 2283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 20:23:08,881 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [361 Valid, 1228 Invalid, 2371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 2283 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 20:23:08,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5473 states. [2022-03-03 20:23:08,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5473 to 4380. [2022-03-03 20:23:08,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4380 states, 4379 states have (on average 3.3838775976250286) internal successors, (14818), 4379 states have internal predecessors, (14818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:23:08,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4380 states to 4380 states and 14818 transitions. [2022-03-03 20:23:08,954 INFO L78 Accepts]: Start accepts. Automaton has 4380 states and 14818 transitions. Word has length 39 [2022-03-03 20:23:08,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:23:08,955 INFO L470 AbstractCegarLoop]: Abstraction has 4380 states and 14818 transitions. [2022-03-03 20:23:08,955 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:23:08,955 INFO L276 IsEmpty]: Start isEmpty. Operand 4380 states and 14818 transitions. [2022-03-03 20:23:08,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:23:08,961 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:23:08,961 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:23:08,961 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable223 [2022-03-03 20:23:08,961 INFO L402 AbstractCegarLoop]: === Iteration 225 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:23:08,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:23:08,962 INFO L85 PathProgramCache]: Analyzing trace with hash 751739958, now seen corresponding path program 225 times [2022-03-03 20:23:08,962 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:23:08,962 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353689673] [2022-03-03 20:23:08,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:23:08,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:23:08,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:23:09,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:23:09,183 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:23:09,183 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353689673] [2022-03-03 20:23:09,183 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353689673] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:23:09,184 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:23:09,184 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:23:09,184 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361065234] [2022-03-03 20:23:09,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:23:09,184 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:23:09,184 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:23:09,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:23:09,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:23:09,184 INFO L87 Difference]: Start difference. First operand 4380 states and 14818 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:23:10,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:23:10,805 INFO L93 Difference]: Finished difference Result 5508 states and 18427 transitions. [2022-03-03 20:23:10,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-03-03 20:23:10,805 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:23:10,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:23:10,817 INFO L225 Difference]: With dead ends: 5508 [2022-03-03 20:23:10,817 INFO L226 Difference]: Without dead ends: 5453 [2022-03-03 20:23:10,817 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1136 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=396, Invalid=3894, Unknown=0, NotChecked=0, Total=4290 [2022-03-03 20:23:10,818 INFO L933 BasicCegarLoop]: 122 mSDtfsCounter, 322 mSDsluCounter, 1522 mSDsCounter, 0 mSdLazyCounter, 2120 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 322 SdHoareTripleChecker+Valid, 1236 SdHoareTripleChecker+Invalid, 2191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 2120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-03 20:23:10,818 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [322 Valid, 1236 Invalid, 2191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 2120 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-03 20:23:10,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5453 states. [2022-03-03 20:23:10,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5453 to 4382. [2022-03-03 20:23:10,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4382 states, 4381 states have (on average 3.3830175758959142) internal successors, (14821), 4381 states have internal predecessors, (14821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:23:10,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4382 states to 4382 states and 14821 transitions. [2022-03-03 20:23:10,899 INFO L78 Accepts]: Start accepts. Automaton has 4382 states and 14821 transitions. Word has length 39 [2022-03-03 20:23:10,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:23:10,899 INFO L470 AbstractCegarLoop]: Abstraction has 4382 states and 14821 transitions. [2022-03-03 20:23:10,899 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:23:10,899 INFO L276 IsEmpty]: Start isEmpty. Operand 4382 states and 14821 transitions. [2022-03-03 20:23:10,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:23:10,906 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:23:10,906 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:23:10,906 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable224 [2022-03-03 20:23:10,906 INFO L402 AbstractCegarLoop]: === Iteration 226 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:23:10,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:23:10,907 INFO L85 PathProgramCache]: Analyzing trace with hash 1924392180, now seen corresponding path program 226 times [2022-03-03 20:23:10,907 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:23:10,907 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301432581] [2022-03-03 20:23:10,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:23:10,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:23:10,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:23:11,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:23:11,122 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:23:11,122 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301432581] [2022-03-03 20:23:11,122 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301432581] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:23:11,122 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:23:11,122 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:23:11,122 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105652328] [2022-03-03 20:23:11,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:23:11,123 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:23:11,123 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:23:11,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:23:11,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:23:11,123 INFO L87 Difference]: Start difference. First operand 4382 states and 14821 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:23:12,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:23:12,365 INFO L93 Difference]: Finished difference Result 5421 states and 18236 transitions. [2022-03-03 20:23:12,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-03-03 20:23:12,365 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:23:12,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:23:12,376 INFO L225 Difference]: With dead ends: 5421 [2022-03-03 20:23:12,376 INFO L226 Difference]: Without dead ends: 5357 [2022-03-03 20:23:12,377 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1037 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=379, Invalid=3653, Unknown=0, NotChecked=0, Total=4032 [2022-03-03 20:23:12,377 INFO L933 BasicCegarLoop]: 123 mSDtfsCounter, 304 mSDsluCounter, 1532 mSDsCounter, 0 mSdLazyCounter, 2106 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 1257 SdHoareTripleChecker+Invalid, 2173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 2106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:23:12,377 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [304 Valid, 1257 Invalid, 2173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 2106 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:23:12,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5357 states. [2022-03-03 20:23:12,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5357 to 4376. [2022-03-03 20:23:12,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4376 states, 4375 states have (on average 3.3846857142857143) internal successors, (14808), 4375 states have internal predecessors, (14808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:23:12,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4376 states to 4376 states and 14808 transitions. [2022-03-03 20:23:12,448 INFO L78 Accepts]: Start accepts. Automaton has 4376 states and 14808 transitions. Word has length 39 [2022-03-03 20:23:12,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:23:12,448 INFO L470 AbstractCegarLoop]: Abstraction has 4376 states and 14808 transitions. [2022-03-03 20:23:12,448 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:23:12,448 INFO L276 IsEmpty]: Start isEmpty. Operand 4376 states and 14808 transitions. [2022-03-03 20:23:12,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:23:12,455 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:23:12,455 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:23:12,455 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable225 [2022-03-03 20:23:12,455 INFO L402 AbstractCegarLoop]: === Iteration 227 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:23:12,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:23:12,455 INFO L85 PathProgramCache]: Analyzing trace with hash -128526794, now seen corresponding path program 227 times [2022-03-03 20:23:12,455 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:23:12,455 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572064690] [2022-03-03 20:23:12,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:23:12,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:23:12,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:23:12,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:23:12,607 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:23:12,607 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572064690] [2022-03-03 20:23:12,607 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572064690] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:23:12,607 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:23:12,607 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:23:12,607 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53333093] [2022-03-03 20:23:12,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:23:12,607 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:23:12,607 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:23:12,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:23:12,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:23:12,608 INFO L87 Difference]: Start difference. First operand 4376 states and 14808 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:23:14,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:23:14,189 INFO L93 Difference]: Finished difference Result 5610 states and 18811 transitions. [2022-03-03 20:23:14,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-03-03 20:23:14,190 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:23:14,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:23:14,201 INFO L225 Difference]: With dead ends: 5610 [2022-03-03 20:23:14,202 INFO L226 Difference]: Without dead ends: 5473 [2022-03-03 20:23:14,202 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1642 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=466, Invalid=5234, Unknown=0, NotChecked=0, Total=5700 [2022-03-03 20:23:14,202 INFO L933 BasicCegarLoop]: 150 mSDtfsCounter, 381 mSDsluCounter, 1813 mSDsCounter, 0 mSdLazyCounter, 2770 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 381 SdHoareTripleChecker+Valid, 1517 SdHoareTripleChecker+Invalid, 2858 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 2770 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-03 20:23:14,203 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [381 Valid, 1517 Invalid, 2858 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 2770 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-03 20:23:14,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5473 states. [2022-03-03 20:23:14,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5473 to 4384. [2022-03-03 20:23:14,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4384 states, 4383 states have (on average 3.3858088067533654) internal successors, (14840), 4383 states have internal predecessors, (14840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:23:14,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4384 states to 4384 states and 14840 transitions. [2022-03-03 20:23:14,346 INFO L78 Accepts]: Start accepts. Automaton has 4384 states and 14840 transitions. Word has length 39 [2022-03-03 20:23:14,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:23:14,346 INFO L470 AbstractCegarLoop]: Abstraction has 4384 states and 14840 transitions. [2022-03-03 20:23:14,346 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:23:14,346 INFO L276 IsEmpty]: Start isEmpty. Operand 4384 states and 14840 transitions. [2022-03-03 20:23:14,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:23:14,353 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:23:14,353 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:23:14,353 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable226 [2022-03-03 20:23:14,353 INFO L402 AbstractCegarLoop]: === Iteration 228 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:23:14,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:23:14,353 INFO L85 PathProgramCache]: Analyzing trace with hash -1623417694, now seen corresponding path program 228 times [2022-03-03 20:23:14,353 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:23:14,353 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14814174] [2022-03-03 20:23:14,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:23:14,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:23:14,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:23:14,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:23:14,511 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:23:14,511 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14814174] [2022-03-03 20:23:14,511 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14814174] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:23:14,511 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:23:14,511 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:23:14,511 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900202754] [2022-03-03 20:23:14,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:23:14,511 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:23:14,511 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:23:14,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:23:14,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:23:14,511 INFO L87 Difference]: Start difference. First operand 4384 states and 14840 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:23:15,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:23:15,907 INFO L93 Difference]: Finished difference Result 5569 states and 18627 transitions. [2022-03-03 20:23:15,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-03-03 20:23:15,908 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:23:15,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:23:15,918 INFO L225 Difference]: With dead ends: 5569 [2022-03-03 20:23:15,918 INFO L226 Difference]: Without dead ends: 5505 [2022-03-03 20:23:15,919 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1581 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=485, Invalid=5065, Unknown=0, NotChecked=0, Total=5550 [2022-03-03 20:23:15,919 INFO L933 BasicCegarLoop]: 117 mSDtfsCounter, 364 mSDsluCounter, 1514 mSDsCounter, 0 mSdLazyCounter, 2340 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 364 SdHoareTripleChecker+Valid, 1230 SdHoareTripleChecker+Invalid, 2424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 2340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:23:15,919 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [364 Valid, 1230 Invalid, 2424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 2340 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:23:15,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5505 states. [2022-03-03 20:23:15,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5505 to 4388. [2022-03-03 20:23:15,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4388 states, 4387 states have (on average 3.3850011397310236) internal successors, (14850), 4387 states have internal predecessors, (14850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:23:15,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4388 states to 4388 states and 14850 transitions. [2022-03-03 20:23:15,991 INFO L78 Accepts]: Start accepts. Automaton has 4388 states and 14850 transitions. Word has length 39 [2022-03-03 20:23:15,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:23:15,992 INFO L470 AbstractCegarLoop]: Abstraction has 4388 states and 14850 transitions. [2022-03-03 20:23:15,992 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:23:15,992 INFO L276 IsEmpty]: Start isEmpty. Operand 4388 states and 14850 transitions. [2022-03-03 20:23:15,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:23:15,999 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:23:15,999 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:23:15,999 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable227 [2022-03-03 20:23:15,999 INFO L402 AbstractCegarLoop]: === Iteration 229 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:23:15,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:23:15,999 INFO L85 PathProgramCache]: Analyzing trace with hash -704934124, now seen corresponding path program 229 times [2022-03-03 20:23:15,999 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:23:16,000 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190247713] [2022-03-03 20:23:16,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:23:16,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:23:16,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:23:16,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:23:16,163 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:23:16,163 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190247713] [2022-03-03 20:23:16,163 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190247713] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:23:16,163 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:23:16,163 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:23:16,164 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151512293] [2022-03-03 20:23:16,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:23:16,164 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:23:16,164 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:23:16,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:23:16,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:23:16,164 INFO L87 Difference]: Start difference. First operand 4388 states and 14850 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:23:17,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:23:17,367 INFO L93 Difference]: Finished difference Result 5495 states and 18413 transitions. [2022-03-03 20:23:17,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-03-03 20:23:17,367 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:23:17,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:23:17,378 INFO L225 Difference]: With dead ends: 5495 [2022-03-03 20:23:17,378 INFO L226 Difference]: Without dead ends: 5440 [2022-03-03 20:23:17,378 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 993 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=351, Invalid=3555, Unknown=0, NotChecked=0, Total=3906 [2022-03-03 20:23:17,378 INFO L933 BasicCegarLoop]: 123 mSDtfsCounter, 323 mSDsluCounter, 1574 mSDsCounter, 0 mSdLazyCounter, 2196 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 323 SdHoareTripleChecker+Valid, 1248 SdHoareTripleChecker+Invalid, 2259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 2196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:23:17,378 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [323 Valid, 1248 Invalid, 2259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 2196 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:23:17,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5440 states. [2022-03-03 20:23:17,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5440 to 4390. [2022-03-03 20:23:17,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4390 states, 4389 states have (on average 3.384142173615858) internal successors, (14853), 4389 states have internal predecessors, (14853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:23:17,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4390 states to 4390 states and 14853 transitions. [2022-03-03 20:23:17,447 INFO L78 Accepts]: Start accepts. Automaton has 4390 states and 14853 transitions. Word has length 39 [2022-03-03 20:23:17,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:23:17,448 INFO L470 AbstractCegarLoop]: Abstraction has 4390 states and 14853 transitions. [2022-03-03 20:23:17,448 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:23:17,448 INFO L276 IsEmpty]: Start isEmpty. Operand 4390 states and 14853 transitions. [2022-03-03 20:23:17,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:23:17,454 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:23:17,454 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:23:17,454 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable228 [2022-03-03 20:23:17,454 INFO L402 AbstractCegarLoop]: === Iteration 230 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:23:17,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:23:17,454 INFO L85 PathProgramCache]: Analyzing trace with hash 467718098, now seen corresponding path program 230 times [2022-03-03 20:23:17,454 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:23:17,455 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636073713] [2022-03-03 20:23:17,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:23:17,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:23:17,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:23:17,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:23:17,652 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:23:17,652 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636073713] [2022-03-03 20:23:17,653 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636073713] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:23:17,653 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:23:17,653 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:23:17,653 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605342515] [2022-03-03 20:23:17,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:23:17,653 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:23:17,653 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:23:17,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:23:17,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:23:17,653 INFO L87 Difference]: Start difference. First operand 4390 states and 14853 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:23:19,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:23:19,050 INFO L93 Difference]: Finished difference Result 5513 states and 18457 transitions. [2022-03-03 20:23:19,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-03-03 20:23:19,051 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:23:19,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:23:19,062 INFO L225 Difference]: With dead ends: 5513 [2022-03-03 20:23:19,062 INFO L226 Difference]: Without dead ends: 5453 [2022-03-03 20:23:19,062 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1044 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=362, Invalid=3670, Unknown=0, NotChecked=0, Total=4032 [2022-03-03 20:23:19,062 INFO L933 BasicCegarLoop]: 119 mSDtfsCounter, 346 mSDsluCounter, 1501 mSDsCounter, 0 mSdLazyCounter, 2133 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 1208 SdHoareTripleChecker+Invalid, 2199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 2133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:23:19,062 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [346 Valid, 1208 Invalid, 2199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 2133 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:23:19,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5453 states. [2022-03-03 20:23:19,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5453 to 4388. [2022-03-03 20:23:19,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4388 states, 4387 states have (on average 3.384545247321632) internal successors, (14848), 4387 states have internal predecessors, (14848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:23:19,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4388 states to 4388 states and 14848 transitions. [2022-03-03 20:23:19,174 INFO L78 Accepts]: Start accepts. Automaton has 4388 states and 14848 transitions. Word has length 39 [2022-03-03 20:23:19,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:23:19,174 INFO L470 AbstractCegarLoop]: Abstraction has 4388 states and 14848 transitions. [2022-03-03 20:23:19,174 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:23:19,174 INFO L276 IsEmpty]: Start isEmpty. Operand 4388 states and 14848 transitions. [2022-03-03 20:23:19,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:23:19,179 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:23:19,179 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:23:19,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable229 [2022-03-03 20:23:19,180 INFO L402 AbstractCegarLoop]: === Iteration 231 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:23:19,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:23:19,180 INFO L85 PathProgramCache]: Analyzing trace with hash -1611848444, now seen corresponding path program 231 times [2022-03-03 20:23:19,180 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:23:19,180 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860927160] [2022-03-03 20:23:19,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:23:19,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:23:19,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:23:19,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:23:19,404 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:23:19,404 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860927160] [2022-03-03 20:23:19,404 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860927160] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:23:19,404 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:23:19,404 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:23:19,404 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061707981] [2022-03-03 20:23:19,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:23:19,404 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:23:19,404 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:23:19,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:23:19,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:23:19,405 INFO L87 Difference]: Start difference. First operand 4388 states and 14848 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:23:20,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:23:20,877 INFO L93 Difference]: Finished difference Result 5370 states and 18139 transitions. [2022-03-03 20:23:20,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-03-03 20:23:20,877 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:23:20,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:23:20,887 INFO L225 Difference]: With dead ends: 5370 [2022-03-03 20:23:20,888 INFO L226 Difference]: Without dead ends: 5294 [2022-03-03 20:23:20,888 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 826 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=312, Invalid=2994, Unknown=0, NotChecked=0, Total=3306 [2022-03-03 20:23:20,888 INFO L933 BasicCegarLoop]: 118 mSDtfsCounter, 288 mSDsluCounter, 1317 mSDsCounter, 0 mSdLazyCounter, 1912 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 1078 SdHoareTripleChecker+Invalid, 1972 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 1912 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-03 20:23:20,888 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [288 Valid, 1078 Invalid, 1972 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 1912 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-03 20:23:20,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5294 states. [2022-03-03 20:23:20,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5294 to 4396. [2022-03-03 20:23:20,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4396 states, 4395 states have (on average 3.3820250284414106) internal successors, (14864), 4395 states have internal predecessors, (14864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:23:20,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4396 states to 4396 states and 14864 transitions. [2022-03-03 20:23:20,947 INFO L78 Accepts]: Start accepts. Automaton has 4396 states and 14864 transitions. Word has length 39 [2022-03-03 20:23:20,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:23:20,947 INFO L470 AbstractCegarLoop]: Abstraction has 4396 states and 14864 transitions. [2022-03-03 20:23:20,948 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:23:20,948 INFO L276 IsEmpty]: Start isEmpty. Operand 4396 states and 14864 transitions. [2022-03-03 20:23:20,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:23:20,953 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:23:20,953 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:23:20,954 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable230 [2022-03-03 20:23:20,954 INFO L402 AbstractCegarLoop]: === Iteration 232 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:23:20,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:23:20,954 INFO L85 PathProgramCache]: Analyzing trace with hash 1665065240, now seen corresponding path program 232 times [2022-03-03 20:23:20,954 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:23:20,954 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525179794] [2022-03-03 20:23:20,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:23:20,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:23:20,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:23:21,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:23:21,184 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:23:21,184 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525179794] [2022-03-03 20:23:21,184 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525179794] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:23:21,184 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:23:21,184 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:23:21,184 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290257642] [2022-03-03 20:23:21,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:23:21,185 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:23:21,185 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:23:21,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:23:21,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:23:21,185 INFO L87 Difference]: Start difference. First operand 4396 states and 14864 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:23:22,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:23:22,997 INFO L93 Difference]: Finished difference Result 5400 states and 18190 transitions. [2022-03-03 20:23:22,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-03-03 20:23:22,998 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:23:22,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:23:23,008 INFO L225 Difference]: With dead ends: 5400 [2022-03-03 20:23:23,008 INFO L226 Difference]: Without dead ends: 5322 [2022-03-03 20:23:23,009 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 909 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=328, Invalid=3332, Unknown=0, NotChecked=0, Total=3660 [2022-03-03 20:23:23,009 INFO L933 BasicCegarLoop]: 120 mSDtfsCounter, 319 mSDsluCounter, 1492 mSDsCounter, 0 mSdLazyCounter, 2075 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 1211 SdHoareTripleChecker+Invalid, 2139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 2075 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 20:23:23,009 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [319 Valid, 1211 Invalid, 2139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 2075 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 20:23:23,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5322 states. [2022-03-03 20:23:23,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5322 to 4376. [2022-03-03 20:23:23,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4376 states, 4375 states have (on average 3.3856) internal successors, (14812), 4375 states have internal predecessors, (14812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:23:23,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4376 states to 4376 states and 14812 transitions. [2022-03-03 20:23:23,083 INFO L78 Accepts]: Start accepts. Automaton has 4376 states and 14812 transitions. Word has length 39 [2022-03-03 20:23:23,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:23:23,083 INFO L470 AbstractCegarLoop]: Abstraction has 4376 states and 14812 transitions. [2022-03-03 20:23:23,083 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:23:23,083 INFO L276 IsEmpty]: Start isEmpty. Operand 4376 states and 14812 transitions. [2022-03-03 20:23:23,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:23:23,089 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:23:23,090 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:23:23,090 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable231 [2022-03-03 20:23:23,090 INFO L402 AbstractCegarLoop]: === Iteration 233 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:23:23,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:23:23,090 INFO L85 PathProgramCache]: Analyzing trace with hash 637928698, now seen corresponding path program 233 times [2022-03-03 20:23:23,090 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:23:23,090 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108623671] [2022-03-03 20:23:23,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:23:23,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:23:23,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:23:23,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:23:23,312 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:23:23,312 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108623671] [2022-03-03 20:23:23,312 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108623671] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:23:23,312 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:23:23,312 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:23:23,312 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722132006] [2022-03-03 20:23:23,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:23:23,313 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:23:23,313 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:23:23,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:23:23,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:23:23,313 INFO L87 Difference]: Start difference. First operand 4376 states and 14812 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:23:24,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:23:24,810 INFO L93 Difference]: Finished difference Result 5319 states and 18031 transitions. [2022-03-03 20:23:24,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-03-03 20:23:24,811 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:23:24,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:23:24,820 INFO L225 Difference]: With dead ends: 5319 [2022-03-03 20:23:24,820 INFO L226 Difference]: Without dead ends: 5252 [2022-03-03 20:23:24,821 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 870 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=324, Invalid=3098, Unknown=0, NotChecked=0, Total=3422 [2022-03-03 20:23:24,821 INFO L933 BasicCegarLoop]: 137 mSDtfsCounter, 274 mSDsluCounter, 1387 mSDsCounter, 0 mSdLazyCounter, 2138 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 1205 SdHoareTripleChecker+Invalid, 2195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 2138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-03 20:23:24,821 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [274 Valid, 1205 Invalid, 2195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 2138 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-03 20:23:24,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5252 states. [2022-03-03 20:23:24,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5252 to 4424. [2022-03-03 20:23:24,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4424 states, 4423 states have (on average 3.3818675107393172) internal successors, (14958), 4423 states have internal predecessors, (14958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:23:24,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4424 states to 4424 states and 14958 transitions. [2022-03-03 20:23:24,878 INFO L78 Accepts]: Start accepts. Automaton has 4424 states and 14958 transitions. Word has length 39 [2022-03-03 20:23:24,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:23:24,878 INFO L470 AbstractCegarLoop]: Abstraction has 4424 states and 14958 transitions. [2022-03-03 20:23:24,878 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:23:24,879 INFO L276 IsEmpty]: Start isEmpty. Operand 4424 states and 14958 transitions. [2022-03-03 20:23:24,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:23:24,884 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:23:24,884 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:23:24,884 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable232 [2022-03-03 20:23:24,884 INFO L402 AbstractCegarLoop]: === Iteration 234 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:23:24,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:23:24,884 INFO L85 PathProgramCache]: Analyzing trace with hash -1081687272, now seen corresponding path program 234 times [2022-03-03 20:23:24,884 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:23:24,884 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117943851] [2022-03-03 20:23:24,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:23:24,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:23:24,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:23:25,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:23:25,110 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:23:25,110 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117943851] [2022-03-03 20:23:25,110 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117943851] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:23:25,110 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:23:25,110 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:23:25,110 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424619507] [2022-03-03 20:23:25,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:23:25,110 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:23:25,110 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:23:25,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:23:25,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:23:25,110 INFO L87 Difference]: Start difference. First operand 4424 states and 14958 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:23:27,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:23:27,149 INFO L93 Difference]: Finished difference Result 5415 states and 18292 transitions. [2022-03-03 20:23:27,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-03-03 20:23:27,150 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:23:27,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:23:27,160 INFO L225 Difference]: With dead ends: 5415 [2022-03-03 20:23:27,160 INFO L226 Difference]: Without dead ends: 5372 [2022-03-03 20:23:27,160 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1530 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=459, Invalid=4797, Unknown=0, NotChecked=0, Total=5256 [2022-03-03 20:23:27,161 INFO L933 BasicCegarLoop]: 135 mSDtfsCounter, 340 mSDsluCounter, 1480 mSDsCounter, 0 mSdLazyCounter, 2418 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 340 SdHoareTripleChecker+Valid, 1278 SdHoareTripleChecker+Invalid, 2496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 2418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 20:23:27,161 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [340 Valid, 1278 Invalid, 2496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 2418 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 20:23:27,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5372 states. [2022-03-03 20:23:27,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5372 to 4430. [2022-03-03 20:23:27,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4430 states, 4429 states have (on average 3.38022126890946) internal successors, (14971), 4429 states have internal predecessors, (14971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:23:27,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4430 states to 4430 states and 14971 transitions. [2022-03-03 20:23:27,218 INFO L78 Accepts]: Start accepts. Automaton has 4430 states and 14971 transitions. Word has length 39 [2022-03-03 20:23:27,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:23:27,218 INFO L470 AbstractCegarLoop]: Abstraction has 4430 states and 14971 transitions. [2022-03-03 20:23:27,218 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:23:27,218 INFO L276 IsEmpty]: Start isEmpty. Operand 4430 states and 14971 transitions. [2022-03-03 20:23:27,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:23:27,224 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:23:27,224 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:23:27,224 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable233 [2022-03-03 20:23:27,224 INFO L402 AbstractCegarLoop]: === Iteration 235 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:23:27,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:23:27,224 INFO L85 PathProgramCache]: Analyzing trace with hash 1432681722, now seen corresponding path program 235 times [2022-03-03 20:23:27,224 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:23:27,224 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777960985] [2022-03-03 20:23:27,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:23:27,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:23:27,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:23:27,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:23:27,444 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:23:27,444 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777960985] [2022-03-03 20:23:27,444 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777960985] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:23:27,444 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:23:27,444 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:23:27,444 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115494138] [2022-03-03 20:23:27,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:23:27,444 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:23:27,444 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:23:27,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:23:27,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:23:27,444 INFO L87 Difference]: Start difference. First operand 4430 states and 14971 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:23:29,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:23:29,516 INFO L93 Difference]: Finished difference Result 5346 states and 18112 transitions. [2022-03-03 20:23:29,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-03-03 20:23:29,516 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:23:29,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:23:29,526 INFO L225 Difference]: With dead ends: 5346 [2022-03-03 20:23:29,526 INFO L226 Difference]: Without dead ends: 5282 [2022-03-03 20:23:29,527 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1473 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=452, Invalid=4660, Unknown=0, NotChecked=0, Total=5112 [2022-03-03 20:23:29,527 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 317 mSDsluCounter, 1437 mSDsCounter, 0 mSdLazyCounter, 2351 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 317 SdHoareTripleChecker+Valid, 1244 SdHoareTripleChecker+Invalid, 2427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 2351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 20:23:29,527 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [317 Valid, 1244 Invalid, 2427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 2351 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 20:23:29,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5282 states. [2022-03-03 20:23:29,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5282 to 4412. [2022-03-03 20:23:29,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4412 states, 4411 states have (on average 3.382452958512809) internal successors, (14920), 4411 states have internal predecessors, (14920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:23:29,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4412 states to 4412 states and 14920 transitions. [2022-03-03 20:23:29,587 INFO L78 Accepts]: Start accepts. Automaton has 4412 states and 14920 transitions. Word has length 39 [2022-03-03 20:23:29,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:23:29,587 INFO L470 AbstractCegarLoop]: Abstraction has 4412 states and 14920 transitions. [2022-03-03 20:23:29,587 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:23:29,587 INFO L276 IsEmpty]: Start isEmpty. Operand 4412 states and 14920 transitions. [2022-03-03 20:23:29,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:23:29,593 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:23:29,593 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:23:29,593 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable234 [2022-03-03 20:23:29,593 INFO L402 AbstractCegarLoop]: === Iteration 236 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:23:29,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:23:29,593 INFO L85 PathProgramCache]: Analyzing trace with hash 1023866106, now seen corresponding path program 236 times [2022-03-03 20:23:29,593 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:23:29,593 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794696637] [2022-03-03 20:23:29,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:23:29,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:23:29,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:23:29,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:23:29,827 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:23:29,827 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794696637] [2022-03-03 20:23:29,828 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794696637] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:23:29,828 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:23:29,828 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:23:29,828 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512417197] [2022-03-03 20:23:29,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:23:29,828 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:23:29,828 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:23:29,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:23:29,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:23:29,828 INFO L87 Difference]: Start difference. First operand 4412 states and 14920 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:23:31,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:23:31,823 INFO L93 Difference]: Finished difference Result 5367 states and 18159 transitions. [2022-03-03 20:23:31,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-03-03 20:23:31,823 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:23:31,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:23:31,833 INFO L225 Difference]: With dead ends: 5367 [2022-03-03 20:23:31,834 INFO L226 Difference]: Without dead ends: 5237 [2022-03-03 20:23:31,834 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1218 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=387, Invalid=4035, Unknown=0, NotChecked=0, Total=4422 [2022-03-03 20:23:31,834 INFO L933 BasicCegarLoop]: 144 mSDtfsCounter, 305 mSDsluCounter, 1532 mSDsCounter, 0 mSdLazyCounter, 2504 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 305 SdHoareTripleChecker+Valid, 1319 SdHoareTripleChecker+Invalid, 2574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 2504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-03 20:23:31,834 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [305 Valid, 1319 Invalid, 2574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 2504 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-03 20:23:31,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5237 states. [2022-03-03 20:23:31,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5237 to 4388. [2022-03-03 20:23:31,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4388 states, 4387 states have (on average 3.3836334625028495) internal successors, (14844), 4387 states have internal predecessors, (14844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:23:31,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4388 states to 4388 states and 14844 transitions. [2022-03-03 20:23:31,892 INFO L78 Accepts]: Start accepts. Automaton has 4388 states and 14844 transitions. Word has length 39 [2022-03-03 20:23:31,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:23:31,892 INFO L470 AbstractCegarLoop]: Abstraction has 4388 states and 14844 transitions. [2022-03-03 20:23:31,892 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:23:31,892 INFO L276 IsEmpty]: Start isEmpty. Operand 4388 states and 14844 transitions. [2022-03-03 20:23:31,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:23:31,898 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:23:31,898 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:23:31,898 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable235 [2022-03-03 20:23:31,898 INFO L402 AbstractCegarLoop]: === Iteration 237 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:23:31,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:23:31,898 INFO L85 PathProgramCache]: Analyzing trace with hash 362721816, now seen corresponding path program 237 times [2022-03-03 20:23:31,898 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:23:31,898 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806911528] [2022-03-03 20:23:31,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:23:31,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:23:31,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:23:32,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:23:32,132 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:23:32,132 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806911528] [2022-03-03 20:23:32,132 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806911528] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:23:32,132 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:23:32,132 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:23:32,132 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557835528] [2022-03-03 20:23:32,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:23:32,132 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:23:32,132 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:23:32,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:23:32,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:23:32,132 INFO L87 Difference]: Start difference. First operand 4388 states and 14844 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:23:33,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:23:33,924 INFO L93 Difference]: Finished difference Result 5412 states and 18282 transitions. [2022-03-03 20:23:33,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-03-03 20:23:33,925 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:23:33,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:23:33,935 INFO L225 Difference]: With dead ends: 5412 [2022-03-03 20:23:33,935 INFO L226 Difference]: Without dead ends: 5345 [2022-03-03 20:23:33,935 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1133 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=375, Invalid=3915, Unknown=0, NotChecked=0, Total=4290 [2022-03-03 20:23:33,936 INFO L933 BasicCegarLoop]: 143 mSDtfsCounter, 296 mSDsluCounter, 1583 mSDsCounter, 0 mSdLazyCounter, 2355 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 1379 SdHoareTripleChecker+Invalid, 2424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 2355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 20:23:33,936 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [296 Valid, 1379 Invalid, 2424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 2355 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 20:23:33,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5345 states. [2022-03-03 20:23:34,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5345 to 4406. [2022-03-03 20:23:34,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4406 states, 4405 states have (on average 3.380703745743473) internal successors, (14892), 4405 states have internal predecessors, (14892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:23:34,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4406 states to 4406 states and 14892 transitions. [2022-03-03 20:23:34,013 INFO L78 Accepts]: Start accepts. Automaton has 4406 states and 14892 transitions. Word has length 39 [2022-03-03 20:23:34,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:23:34,013 INFO L470 AbstractCegarLoop]: Abstraction has 4406 states and 14892 transitions. [2022-03-03 20:23:34,013 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:23:34,013 INFO L276 IsEmpty]: Start isEmpty. Operand 4406 states and 14892 transitions. [2022-03-03 20:23:34,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:23:34,018 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:23:34,018 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:23:34,018 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable236 [2022-03-03 20:23:34,018 INFO L402 AbstractCegarLoop]: === Iteration 238 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:23:34,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:23:34,019 INFO L85 PathProgramCache]: Analyzing trace with hash -1356894154, now seen corresponding path program 238 times [2022-03-03 20:23:34,019 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:23:34,019 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103491936] [2022-03-03 20:23:34,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:23:34,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:23:34,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:23:34,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:23:34,253 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:23:34,253 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103491936] [2022-03-03 20:23:34,253 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103491936] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:23:34,253 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:23:34,254 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:23:34,254 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013119897] [2022-03-03 20:23:34,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:23:34,254 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:23:34,254 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:23:34,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:23:34,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:23:34,254 INFO L87 Difference]: Start difference. First operand 4406 states and 14892 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:23:36,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:23:36,623 INFO L93 Difference]: Finished difference Result 5541 states and 18609 transitions. [2022-03-03 20:23:36,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2022-03-03 20:23:36,624 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:23:36,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:23:36,634 INFO L225 Difference]: With dead ends: 5541 [2022-03-03 20:23:36,634 INFO L226 Difference]: Without dead ends: 5498 [2022-03-03 20:23:36,635 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1874 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=517, Invalid=5803, Unknown=0, NotChecked=0, Total=6320 [2022-03-03 20:23:36,635 INFO L933 BasicCegarLoop]: 140 mSDtfsCounter, 362 mSDsluCounter, 1690 mSDsCounter, 0 mSdLazyCounter, 2650 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 362 SdHoareTripleChecker+Valid, 1457 SdHoareTripleChecker+Invalid, 2741 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 2650 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-03 20:23:36,635 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [362 Valid, 1457 Invalid, 2741 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 2650 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-03 20:23:36,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5498 states. [2022-03-03 20:23:36,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5498 to 4412. [2022-03-03 20:23:36,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4412 states, 4411 states have (on average 3.3790523690773067) internal successors, (14905), 4411 states have internal predecessors, (14905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:23:36,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4412 states to 4412 states and 14905 transitions. [2022-03-03 20:23:36,695 INFO L78 Accepts]: Start accepts. Automaton has 4412 states and 14905 transitions. Word has length 39 [2022-03-03 20:23:36,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:23:36,695 INFO L470 AbstractCegarLoop]: Abstraction has 4412 states and 14905 transitions. [2022-03-03 20:23:36,695 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:23:36,695 INFO L276 IsEmpty]: Start isEmpty. Operand 4412 states and 14905 transitions. [2022-03-03 20:23:36,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:23:36,701 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:23:36,701 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:23:36,701 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable237 [2022-03-03 20:23:36,701 INFO L402 AbstractCegarLoop]: === Iteration 239 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:23:36,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:23:36,701 INFO L85 PathProgramCache]: Analyzing trace with hash 1157474840, now seen corresponding path program 239 times [2022-03-03 20:23:36,701 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:23:36,701 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617946122] [2022-03-03 20:23:36,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:23:36,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:23:36,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:23:36,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:23:36,869 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:23:36,869 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617946122] [2022-03-03 20:23:36,869 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617946122] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:23:36,869 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:23:36,870 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:23:36,870 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501096217] [2022-03-03 20:23:36,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:23:36,870 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:23:36,870 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:23:36,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:23:36,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:23:36,870 INFO L87 Difference]: Start difference. First operand 4412 states and 14905 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:23:38,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:23:38,397 INFO L93 Difference]: Finished difference Result 5472 states and 18429 transitions. [2022-03-03 20:23:38,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2022-03-03 20:23:38,397 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:23:38,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:23:38,407 INFO L225 Difference]: With dead ends: 5472 [2022-03-03 20:23:38,407 INFO L226 Difference]: Without dead ends: 5408 [2022-03-03 20:23:38,408 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1694 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=491, Invalid=5361, Unknown=0, NotChecked=0, Total=5852 [2022-03-03 20:23:38,408 INFO L933 BasicCegarLoop]: 133 mSDtfsCounter, 344 mSDsluCounter, 1627 mSDsCounter, 0 mSdLazyCounter, 2570 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 1399 SdHoareTripleChecker+Invalid, 2658 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 2570 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:23:38,408 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [344 Valid, 1399 Invalid, 2658 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 2570 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:23:38,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5408 states. [2022-03-03 20:23:38,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5408 to 4394. [2022-03-03 20:23:38,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4394 states, 4393 states have (on average 3.3826542226269063) internal successors, (14860), 4393 states have internal predecessors, (14860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:23:38,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4394 states to 4394 states and 14860 transitions. [2022-03-03 20:23:38,468 INFO L78 Accepts]: Start accepts. Automaton has 4394 states and 14860 transitions. Word has length 39 [2022-03-03 20:23:38,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:23:38,468 INFO L470 AbstractCegarLoop]: Abstraction has 4394 states and 14860 transitions. [2022-03-03 20:23:38,468 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:23:38,468 INFO L276 IsEmpty]: Start isEmpty. Operand 4394 states and 14860 transitions. [2022-03-03 20:23:38,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:23:38,473 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:23:38,473 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:23:38,473 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable238 [2022-03-03 20:23:38,473 INFO L402 AbstractCegarLoop]: === Iteration 240 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:23:38,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:23:38,474 INFO L85 PathProgramCache]: Analyzing trace with hash 1669265880, now seen corresponding path program 240 times [2022-03-03 20:23:38,474 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:23:38,474 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105639232] [2022-03-03 20:23:38,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:23:38,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:23:38,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:23:38,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:23:38,628 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:23:38,628 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105639232] [2022-03-03 20:23:38,628 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105639232] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:23:38,628 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:23:38,628 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:23:38,628 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34440551] [2022-03-03 20:23:38,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:23:38,628 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:23:38,628 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:23:38,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:23:38,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:23:38,629 INFO L87 Difference]: Start difference. First operand 4394 states and 14860 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:23:39,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:23:39,724 INFO L93 Difference]: Finished difference Result 5314 states and 17970 transitions. [2022-03-03 20:23:39,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-03-03 20:23:39,724 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:23:39,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:23:39,734 INFO L225 Difference]: With dead ends: 5314 [2022-03-03 20:23:39,734 INFO L226 Difference]: Without dead ends: 5247 [2022-03-03 20:23:39,735 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 787 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=296, Invalid=3010, Unknown=0, NotChecked=0, Total=3306 [2022-03-03 20:23:39,735 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 262 mSDsluCounter, 1465 mSDsCounter, 0 mSdLazyCounter, 2204 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 1218 SdHoareTripleChecker+Invalid, 2261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 2204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:23:39,735 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [262 Valid, 1218 Invalid, 2261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 2204 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:23:39,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5247 states. [2022-03-03 20:23:39,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5247 to 4412. [2022-03-03 20:23:39,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4412 states, 4411 states have (on average 3.378372251190206) internal successors, (14902), 4411 states have internal predecessors, (14902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:23:39,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4412 states to 4412 states and 14902 transitions. [2022-03-03 20:23:39,794 INFO L78 Accepts]: Start accepts. Automaton has 4412 states and 14902 transitions. Word has length 39 [2022-03-03 20:23:39,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:23:39,794 INFO L470 AbstractCegarLoop]: Abstraction has 4412 states and 14902 transitions. [2022-03-03 20:23:39,794 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:23:39,794 INFO L276 IsEmpty]: Start isEmpty. Operand 4412 states and 14902 transitions. [2022-03-03 20:23:39,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:23:39,799 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:23:39,800 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:23:39,800 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable239 [2022-03-03 20:23:39,800 INFO L402 AbstractCegarLoop]: === Iteration 241 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:23:39,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:23:39,800 INFO L85 PathProgramCache]: Analyzing trace with hash 2027336088, now seen corresponding path program 241 times [2022-03-03 20:23:39,800 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:23:39,800 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287377913] [2022-03-03 20:23:39,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:23:39,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:23:39,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:23:40,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:23:40,035 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:23:40,035 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287377913] [2022-03-03 20:23:40,035 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287377913] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:23:40,035 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:23:40,035 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:23:40,035 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762162438] [2022-03-03 20:23:40,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:23:40,036 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:23:40,036 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:23:40,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:23:40,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:23:40,036 INFO L87 Difference]: Start difference. First operand 4412 states and 14902 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:23:41,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:23:41,479 INFO L93 Difference]: Finished difference Result 5331 states and 17974 transitions. [2022-03-03 20:23:41,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-03-03 20:23:41,479 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:23:41,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:23:41,490 INFO L225 Difference]: With dead ends: 5331 [2022-03-03 20:23:41,490 INFO L226 Difference]: Without dead ends: 5256 [2022-03-03 20:23:41,490 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 827 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=302, Invalid=3120, Unknown=0, NotChecked=0, Total=3422 [2022-03-03 20:23:41,490 INFO L933 BasicCegarLoop]: 127 mSDtfsCounter, 277 mSDsluCounter, 1497 mSDsCounter, 0 mSdLazyCounter, 2160 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 1235 SdHoareTripleChecker+Invalid, 2217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 2160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-03 20:23:41,490 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [277 Valid, 1235 Invalid, 2217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 2160 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-03 20:23:41,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5256 states. [2022-03-03 20:23:41,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5256 to 4400. [2022-03-03 20:23:41,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4400 states, 4399 states have (on average 3.380313707660832) internal successors, (14870), 4399 states have internal predecessors, (14870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:23:41,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4400 states to 4400 states and 14870 transitions. [2022-03-03 20:23:41,563 INFO L78 Accepts]: Start accepts. Automaton has 4400 states and 14870 transitions. Word has length 39 [2022-03-03 20:23:41,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:23:41,563 INFO L470 AbstractCegarLoop]: Abstraction has 4400 states and 14870 transitions. [2022-03-03 20:23:41,563 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:23:41,563 INFO L276 IsEmpty]: Start isEmpty. Operand 4400 states and 14870 transitions. [2022-03-03 20:23:41,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:23:41,570 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:23:41,570 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:23:41,570 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable240 [2022-03-03 20:23:41,570 INFO L402 AbstractCegarLoop]: === Iteration 242 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:23:41,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:23:41,570 INFO L85 PathProgramCache]: Analyzing trace with hash -639326154, now seen corresponding path program 242 times [2022-03-03 20:23:41,570 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:23:41,570 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610646862] [2022-03-03 20:23:41,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:23:41,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:23:41,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:23:41,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:23:41,802 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:23:41,802 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610646862] [2022-03-03 20:23:41,802 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610646862] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:23:41,802 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:23:41,802 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:23:41,802 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696446366] [2022-03-03 20:23:41,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:23:41,802 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:23:41,802 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:23:41,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:23:41,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:23:41,803 INFO L87 Difference]: Start difference. First operand 4400 states and 14870 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:23:43,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:23:43,539 INFO L93 Difference]: Finished difference Result 5490 states and 18381 transitions. [2022-03-03 20:23:43,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-03-03 20:23:43,539 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:23:43,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:23:43,550 INFO L225 Difference]: With dead ends: 5490 [2022-03-03 20:23:43,551 INFO L226 Difference]: Without dead ends: 5447 [2022-03-03 20:23:43,551 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1479 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=440, Invalid=4816, Unknown=0, NotChecked=0, Total=5256 [2022-03-03 20:23:43,551 INFO L933 BasicCegarLoop]: 124 mSDtfsCounter, 354 mSDsluCounter, 1544 mSDsCounter, 0 mSdLazyCounter, 2406 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 354 SdHoareTripleChecker+Valid, 1265 SdHoareTripleChecker+Invalid, 2486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 2406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 20:23:43,552 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [354 Valid, 1265 Invalid, 2486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 2406 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 20:23:43,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5447 states. [2022-03-03 20:23:43,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5447 to 4409. [2022-03-03 20:23:43,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4409 states, 4408 states have (on average 3.378856624319419) internal successors, (14894), 4408 states have internal predecessors, (14894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:23:43,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4409 states to 4409 states and 14894 transitions. [2022-03-03 20:23:43,687 INFO L78 Accepts]: Start accepts. Automaton has 4409 states and 14894 transitions. Word has length 39 [2022-03-03 20:23:43,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:23:43,687 INFO L470 AbstractCegarLoop]: Abstraction has 4409 states and 14894 transitions. [2022-03-03 20:23:43,687 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:23:43,687 INFO L276 IsEmpty]: Start isEmpty. Operand 4409 states and 14894 transitions. [2022-03-03 20:23:43,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:23:43,693 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:23:43,693 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:23:43,693 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable241 [2022-03-03 20:23:43,693 INFO L402 AbstractCegarLoop]: === Iteration 243 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:23:43,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:23:43,694 INFO L85 PathProgramCache]: Analyzing trace with hash 1875042840, now seen corresponding path program 243 times [2022-03-03 20:23:43,697 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:23:43,697 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677970100] [2022-03-03 20:23:43,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:23:43,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:23:43,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:23:43,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:23:43,863 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:23:43,863 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677970100] [2022-03-03 20:23:43,863 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677970100] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:23:43,863 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:23:43,863 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:23:43,864 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92488026] [2022-03-03 20:23:43,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:23:43,864 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:23:43,864 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:23:43,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:23:43,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:23:43,864 INFO L87 Difference]: Start difference. First operand 4409 states and 14894 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:23:45,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:23:45,632 INFO L93 Difference]: Finished difference Result 5478 states and 18343 transitions. [2022-03-03 20:23:45,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-03-03 20:23:45,632 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:23:45,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:23:45,642 INFO L225 Difference]: With dead ends: 5478 [2022-03-03 20:23:45,642 INFO L226 Difference]: Without dead ends: 5426 [2022-03-03 20:23:45,643 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1425 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=432, Invalid=4680, Unknown=0, NotChecked=0, Total=5112 [2022-03-03 20:23:45,643 INFO L933 BasicCegarLoop]: 122 mSDtfsCounter, 354 mSDsluCounter, 1516 mSDsCounter, 0 mSdLazyCounter, 2380 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 354 SdHoareTripleChecker+Valid, 1248 SdHoareTripleChecker+Invalid, 2458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 2380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-03 20:23:45,643 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [354 Valid, 1248 Invalid, 2458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 2380 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-03 20:23:45,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5426 states. [2022-03-03 20:23:45,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5426 to 4403. [2022-03-03 20:23:45,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4403 states, 4402 states have (on average 3.379827351203998) internal successors, (14878), 4402 states have internal predecessors, (14878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:23:45,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4403 states to 4403 states and 14878 transitions. [2022-03-03 20:23:45,704 INFO L78 Accepts]: Start accepts. Automaton has 4403 states and 14878 transitions. Word has length 39 [2022-03-03 20:23:45,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:23:45,704 INFO L470 AbstractCegarLoop]: Abstraction has 4403 states and 14878 transitions. [2022-03-03 20:23:45,704 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:23:45,704 INFO L276 IsEmpty]: Start isEmpty. Operand 4403 states and 14878 transitions. [2022-03-03 20:23:45,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:23:45,710 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:23:45,710 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:23:45,710 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable242 [2022-03-03 20:23:45,710 INFO L402 AbstractCegarLoop]: === Iteration 244 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:23:45,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:23:45,710 INFO L85 PathProgramCache]: Analyzing trace with hash 2118221912, now seen corresponding path program 244 times [2022-03-03 20:23:45,710 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:23:45,710 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643642885] [2022-03-03 20:23:45,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:23:45,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:23:45,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:23:45,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:23:45,944 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:23:45,944 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643642885] [2022-03-03 20:23:45,944 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643642885] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:23:45,944 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:23:45,944 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:23:45,945 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208194361] [2022-03-03 20:23:45,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:23:45,945 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:23:45,945 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:23:45,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:23:45,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:23:45,945 INFO L87 Difference]: Start difference. First operand 4403 states and 14878 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:23:47,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:23:47,127 INFO L93 Difference]: Finished difference Result 5475 states and 18297 transitions. [2022-03-03 20:23:47,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-03-03 20:23:47,127 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:23:47,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:23:47,137 INFO L225 Difference]: With dead ends: 5475 [2022-03-03 20:23:47,137 INFO L226 Difference]: Without dead ends: 5412 [2022-03-03 20:23:47,137 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 958 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=329, Invalid=3453, Unknown=0, NotChecked=0, Total=3782 [2022-03-03 20:23:47,137 INFO L933 BasicCegarLoop]: 127 mSDtfsCounter, 309 mSDsluCounter, 1546 mSDsCounter, 0 mSdLazyCounter, 2225 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 309 SdHoareTripleChecker+Valid, 1250 SdHoareTripleChecker+Invalid, 2287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 2225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:23:47,137 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [309 Valid, 1250 Invalid, 2287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 2225 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:23:47,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5412 states. [2022-03-03 20:23:47,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5412 to 4403. [2022-03-03 20:23:47,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4403 states, 4402 states have (on average 3.379145842798728) internal successors, (14875), 4402 states have internal predecessors, (14875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:23:47,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4403 states to 4403 states and 14875 transitions. [2022-03-03 20:23:47,194 INFO L78 Accepts]: Start accepts. Automaton has 4403 states and 14875 transitions. Word has length 39 [2022-03-03 20:23:47,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:23:47,194 INFO L470 AbstractCegarLoop]: Abstraction has 4403 states and 14875 transitions. [2022-03-03 20:23:47,194 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:23:47,194 INFO L276 IsEmpty]: Start isEmpty. Operand 4403 states and 14875 transitions. [2022-03-03 20:23:47,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:23:47,199 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:23:47,199 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:23:47,199 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable243 [2022-03-03 20:23:47,199 INFO L402 AbstractCegarLoop]: === Iteration 245 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:23:47,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:23:47,200 INFO L85 PathProgramCache]: Analyzing trace with hash 190580154, now seen corresponding path program 245 times [2022-03-03 20:23:47,200 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:23:47,200 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774684981] [2022-03-03 20:23:47,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:23:47,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:23:47,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:23:47,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:23:47,350 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:23:47,350 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774684981] [2022-03-03 20:23:47,350 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774684981] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:23:47,350 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:23:47,350 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:23:47,351 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123671121] [2022-03-03 20:23:47,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:23:47,351 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:23:47,351 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:23:47,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:23:47,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:23:47,351 INFO L87 Difference]: Start difference. First operand 4403 states and 14875 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:23:48,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:23:48,390 INFO L93 Difference]: Finished difference Result 5380 states and 18081 transitions. [2022-03-03 20:23:48,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-03-03 20:23:48,390 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:23:48,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:23:48,400 INFO L225 Difference]: With dead ends: 5380 [2022-03-03 20:23:48,400 INFO L226 Difference]: Without dead ends: 5304 [2022-03-03 20:23:48,401 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 867 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=312, Invalid=3228, Unknown=0, NotChecked=0, Total=3540 [2022-03-03 20:23:48,401 INFO L933 BasicCegarLoop]: 128 mSDtfsCounter, 285 mSDsluCounter, 1553 mSDsCounter, 0 mSdLazyCounter, 2232 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 1253 SdHoareTripleChecker+Invalid, 2290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 2232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:23:48,401 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [285 Valid, 1253 Invalid, 2290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 2232 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:23:48,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5304 states. [2022-03-03 20:23:48,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5304 to 4394. [2022-03-03 20:23:48,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4394 states, 4393 states have (on average 3.3812884133849304) internal successors, (14854), 4393 states have internal predecessors, (14854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:23:48,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4394 states to 4394 states and 14854 transitions. [2022-03-03 20:23:48,460 INFO L78 Accepts]: Start accepts. Automaton has 4394 states and 14854 transitions. Word has length 39 [2022-03-03 20:23:48,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:23:48,460 INFO L470 AbstractCegarLoop]: Abstraction has 4394 states and 14854 transitions. [2022-03-03 20:23:48,460 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:23:48,460 INFO L276 IsEmpty]: Start isEmpty. Operand 4394 states and 14854 transitions. [2022-03-03 20:23:48,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:23:48,465 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:23:48,465 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:23:48,466 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable244 [2022-03-03 20:23:48,466 INFO L402 AbstractCegarLoop]: === Iteration 246 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:23:48,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:23:48,466 INFO L85 PathProgramCache]: Analyzing trace with hash 608825786, now seen corresponding path program 246 times [2022-03-03 20:23:48,466 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:23:48,466 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538495327] [2022-03-03 20:23:48,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:23:48,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:23:48,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:23:48,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:23:48,684 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:23:48,684 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538495327] [2022-03-03 20:23:48,684 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538495327] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:23:48,684 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:23:48,684 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:23:48,685 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680019021] [2022-03-03 20:23:48,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:23:48,685 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:23:48,685 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:23:48,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:23:48,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:23:48,685 INFO L87 Difference]: Start difference. First operand 4394 states and 14854 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:23:50,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:23:50,840 INFO L93 Difference]: Finished difference Result 5557 states and 18619 transitions. [2022-03-03 20:23:50,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-03-03 20:23:50,840 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:23:50,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:23:50,851 INFO L225 Difference]: With dead ends: 5557 [2022-03-03 20:23:50,851 INFO L226 Difference]: Without dead ends: 5420 [2022-03-03 20:23:50,852 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1533 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=438, Invalid=4964, Unknown=0, NotChecked=0, Total=5402 [2022-03-03 20:23:50,852 INFO L933 BasicCegarLoop]: 155 mSDtfsCounter, 364 mSDsluCounter, 1861 mSDsCounter, 0 mSdLazyCounter, 2852 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 364 SdHoareTripleChecker+Valid, 1558 SdHoareTripleChecker+Invalid, 2931 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 2852 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-03 20:23:50,852 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [364 Valid, 1558 Invalid, 2931 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 2852 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-03 20:23:50,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5420 states. [2022-03-03 20:23:50,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5420 to 4400. [2022-03-03 20:23:50,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4400 states, 4399 states have (on average 3.380313707660832) internal successors, (14870), 4399 states have internal predecessors, (14870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:23:50,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4400 states to 4400 states and 14870 transitions. [2022-03-03 20:23:50,921 INFO L78 Accepts]: Start accepts. Automaton has 4400 states and 14870 transitions. Word has length 39 [2022-03-03 20:23:50,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:23:50,921 INFO L470 AbstractCegarLoop]: Abstraction has 4400 states and 14870 transitions. [2022-03-03 20:23:50,921 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:23:50,921 INFO L276 IsEmpty]: Start isEmpty. Operand 4400 states and 14870 transitions. [2022-03-03 20:23:50,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:23:50,928 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:23:50,928 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:23:50,928 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable245 [2022-03-03 20:23:50,928 INFO L402 AbstractCegarLoop]: === Iteration 247 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:23:50,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:23:50,928 INFO L85 PathProgramCache]: Analyzing trace with hash -132126312, now seen corresponding path program 247 times [2022-03-03 20:23:50,928 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:23:50,929 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236922749] [2022-03-03 20:23:50,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:23:50,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:23:50,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:23:51,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:23:51,127 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:23:51,127 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236922749] [2022-03-03 20:23:51,127 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236922749] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:23:51,127 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:23:51,128 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:23:51,128 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932789231] [2022-03-03 20:23:51,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:23:51,128 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:23:51,128 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:23:51,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:23:51,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:23:51,128 INFO L87 Difference]: Start difference. First operand 4400 states and 14870 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:23:53,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:23:53,069 INFO L93 Difference]: Finished difference Result 5529 states and 18482 transitions. [2022-03-03 20:23:53,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-03-03 20:23:53,069 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:23:53,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:23:53,079 INFO L225 Difference]: With dead ends: 5529 [2022-03-03 20:23:53,079 INFO L226 Difference]: Without dead ends: 5465 [2022-03-03 20:23:53,080 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1427 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=429, Invalid=4683, Unknown=0, NotChecked=0, Total=5112 [2022-03-03 20:23:53,080 INFO L933 BasicCegarLoop]: 122 mSDtfsCounter, 360 mSDsluCounter, 1552 mSDsCounter, 0 mSdLazyCounter, 2418 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 1261 SdHoareTripleChecker+Invalid, 2497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 2418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 20:23:53,080 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [360 Valid, 1261 Invalid, 2497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 2418 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 20:23:53,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5465 states. [2022-03-03 20:23:53,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5465 to 4409. [2022-03-03 20:23:53,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4409 states, 4408 states have (on average 3.378856624319419) internal successors, (14894), 4408 states have internal predecessors, (14894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:23:53,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4409 states to 4409 states and 14894 transitions. [2022-03-03 20:23:53,141 INFO L78 Accepts]: Start accepts. Automaton has 4409 states and 14894 transitions. Word has length 39 [2022-03-03 20:23:53,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:23:53,141 INFO L470 AbstractCegarLoop]: Abstraction has 4409 states and 14894 transitions. [2022-03-03 20:23:53,141 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:23:53,142 INFO L276 IsEmpty]: Start isEmpty. Operand 4409 states and 14894 transitions. [2022-03-03 20:23:53,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:23:53,147 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:23:53,147 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:23:53,147 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable246 [2022-03-03 20:23:53,147 INFO L402 AbstractCegarLoop]: === Iteration 248 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:23:53,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:23:53,147 INFO L85 PathProgramCache]: Analyzing trace with hash -1669545542, now seen corresponding path program 248 times [2022-03-03 20:23:53,147 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:23:53,147 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630284697] [2022-03-03 20:23:53,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:23:53,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:23:53,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:23:53,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:23:53,383 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:23:53,383 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630284697] [2022-03-03 20:23:53,383 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630284697] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:23:53,383 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:23:53,383 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:23:53,383 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098233969] [2022-03-03 20:23:53,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:23:53,384 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:23:53,384 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:23:53,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:23:53,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:23:53,384 INFO L87 Difference]: Start difference. First operand 4409 states and 14894 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:23:54,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:23:54,751 INFO L93 Difference]: Finished difference Result 5469 states and 18300 transitions. [2022-03-03 20:23:54,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-03-03 20:23:54,751 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:23:54,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:23:54,761 INFO L225 Difference]: With dead ends: 5469 [2022-03-03 20:23:54,761 INFO L226 Difference]: Without dead ends: 5406 [2022-03-03 20:23:54,761 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 870 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=307, Invalid=3233, Unknown=0, NotChecked=0, Total=3540 [2022-03-03 20:23:54,761 INFO L933 BasicCegarLoop]: 128 mSDtfsCounter, 312 mSDsluCounter, 1611 mSDsCounter, 0 mSdLazyCounter, 2279 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 1274 SdHoareTripleChecker+Invalid, 2338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 2279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-03 20:23:54,762 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [312 Valid, 1274 Invalid, 2338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 2279 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-03 20:23:54,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5406 states. [2022-03-03 20:23:54,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5406 to 4409. [2022-03-03 20:23:54,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4409 states, 4408 states have (on average 3.378176043557169) internal successors, (14891), 4408 states have internal predecessors, (14891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:23:54,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4409 states to 4409 states and 14891 transitions. [2022-03-03 20:23:54,821 INFO L78 Accepts]: Start accepts. Automaton has 4409 states and 14891 transitions. Word has length 39 [2022-03-03 20:23:54,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:23:54,821 INFO L470 AbstractCegarLoop]: Abstraction has 4409 states and 14891 transitions. [2022-03-03 20:23:54,821 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:23:54,821 INFO L276 IsEmpty]: Start isEmpty. Operand 4409 states and 14891 transitions. [2022-03-03 20:23:54,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:23:54,826 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:23:54,826 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:23:54,826 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable247 [2022-03-03 20:23:54,826 INFO L402 AbstractCegarLoop]: === Iteration 249 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:23:54,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:23:54,827 INFO L85 PathProgramCache]: Analyzing trace with hash 697779996, now seen corresponding path program 249 times [2022-03-03 20:23:54,827 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:23:54,827 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441852021] [2022-03-03 20:23:54,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:23:54,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:23:54,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:23:54,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:23:54,974 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:23:54,974 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441852021] [2022-03-03 20:23:54,974 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441852021] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:23:54,974 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:23:54,974 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:23:54,974 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844112044] [2022-03-03 20:23:54,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:23:54,974 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:23:54,974 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:23:54,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:23:54,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:23:54,974 INFO L87 Difference]: Start difference. First operand 4409 states and 14891 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:23:56,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:23:56,208 INFO L93 Difference]: Finished difference Result 5488 states and 18346 transitions. [2022-03-03 20:23:56,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-03-03 20:23:56,208 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:23:56,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:23:56,218 INFO L225 Difference]: With dead ends: 5488 [2022-03-03 20:23:56,218 INFO L226 Difference]: Without dead ends: 5418 [2022-03-03 20:23:56,219 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 918 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=318, Invalid=3342, Unknown=0, NotChecked=0, Total=3660 [2022-03-03 20:23:56,219 INFO L933 BasicCegarLoop]: 124 mSDtfsCounter, 337 mSDsluCounter, 1529 mSDsCounter, 0 mSdLazyCounter, 2242 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 337 SdHoareTripleChecker+Valid, 1218 SdHoareTripleChecker+Invalid, 2304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 2242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:23:56,219 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [337 Valid, 1218 Invalid, 2304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 2242 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:23:56,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5418 states. [2022-03-03 20:23:56,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5418 to 4406. [2022-03-03 20:23:56,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4406 states, 4405 states have (on average 3.378660612939841) internal successors, (14883), 4405 states have internal predecessors, (14883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:23:56,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4406 states to 4406 states and 14883 transitions. [2022-03-03 20:23:56,283 INFO L78 Accepts]: Start accepts. Automaton has 4406 states and 14883 transitions. Word has length 39 [2022-03-03 20:23:56,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:23:56,283 INFO L470 AbstractCegarLoop]: Abstraction has 4406 states and 14883 transitions. [2022-03-03 20:23:56,284 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:23:56,284 INFO L276 IsEmpty]: Start isEmpty. Operand 4406 states and 14883 transitions. [2022-03-03 20:23:56,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:23:56,289 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:23:56,289 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:23:56,289 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable248 [2022-03-03 20:23:56,290 INFO L402 AbstractCegarLoop]: === Iteration 250 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:23:56,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:23:56,290 INFO L85 PathProgramCache]: Analyzing trace with hash -1317904204, now seen corresponding path program 250 times [2022-03-03 20:23:56,290 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:23:56,290 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134970113] [2022-03-03 20:23:56,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:23:56,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:23:56,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:23:56,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:23:56,463 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:23:56,463 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134970113] [2022-03-03 20:23:56,463 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134970113] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:23:56,463 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:23:56,463 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:23:56,463 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798204308] [2022-03-03 20:23:56,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:23:56,463 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:23:56,463 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:23:56,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:23:56,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:23:56,464 INFO L87 Difference]: Start difference. First operand 4406 states and 14883 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:23:57,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:23:57,826 INFO L93 Difference]: Finished difference Result 5326 states and 17971 transitions. [2022-03-03 20:23:57,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-03-03 20:23:57,827 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:23:57,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:23:57,836 INFO L225 Difference]: With dead ends: 5326 [2022-03-03 20:23:57,836 INFO L226 Difference]: Without dead ends: 5250 [2022-03-03 20:23:57,837 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 750 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=285, Invalid=2795, Unknown=0, NotChecked=0, Total=3080 [2022-03-03 20:23:57,837 INFO L933 BasicCegarLoop]: 123 mSDtfsCounter, 276 mSDsluCounter, 1340 mSDsCounter, 0 mSdLazyCounter, 1988 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 1096 SdHoareTripleChecker+Invalid, 2044 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1988 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-03 20:23:57,837 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [276 Valid, 1096 Invalid, 2044 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1988 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-03 20:23:57,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5250 states. [2022-03-03 20:23:57,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5250 to 4420. [2022-03-03 20:23:57,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4420 states, 4419 states have (on average 3.374745417515275) internal successors, (14913), 4419 states have internal predecessors, (14913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:23:57,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4420 states to 4420 states and 14913 transitions. [2022-03-03 20:23:57,896 INFO L78 Accepts]: Start accepts. Automaton has 4420 states and 14913 transitions. Word has length 39 [2022-03-03 20:23:57,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:23:57,896 INFO L470 AbstractCegarLoop]: Abstraction has 4420 states and 14913 transitions. [2022-03-03 20:23:57,896 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:23:57,896 INFO L276 IsEmpty]: Start isEmpty. Operand 4420 states and 14913 transitions. [2022-03-03 20:23:57,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:23:57,901 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:23:57,901 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:23:57,901 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable249 [2022-03-03 20:23:57,902 INFO L402 AbstractCegarLoop]: === Iteration 251 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:23:57,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:23:57,902 INFO L85 PathProgramCache]: Analyzing trace with hash 1429140758, now seen corresponding path program 251 times [2022-03-03 20:23:57,902 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:23:57,902 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275295013] [2022-03-03 20:23:57,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:23:57,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:23:57,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:23:58,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:23:58,141 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:23:58,141 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275295013] [2022-03-03 20:23:58,141 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275295013] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:23:58,141 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:23:58,141 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:23:58,141 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930206552] [2022-03-03 20:23:58,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:23:58,141 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:23:58,141 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:23:58,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:23:58,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:23:58,142 INFO L87 Difference]: Start difference. First operand 4420 states and 14913 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:23:59,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:23:59,689 INFO L93 Difference]: Finished difference Result 5365 states and 18043 transitions. [2022-03-03 20:23:59,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-03-03 20:23:59,689 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:23:59,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:23:59,699 INFO L225 Difference]: With dead ends: 5365 [2022-03-03 20:23:59,699 INFO L226 Difference]: Without dead ends: 5266 [2022-03-03 20:23:59,699 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 829 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=301, Invalid=3121, Unknown=0, NotChecked=0, Total=3422 [2022-03-03 20:23:59,700 INFO L933 BasicCegarLoop]: 125 mSDtfsCounter, 306 mSDsluCounter, 1534 mSDsCounter, 0 mSdLazyCounter, 2204 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 1217 SdHoareTripleChecker+Invalid, 2264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 2204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 20:23:59,700 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [306 Valid, 1217 Invalid, 2264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 2204 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 20:23:59,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5266 states. [2022-03-03 20:23:59,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5266 to 4388. [2022-03-03 20:23:59,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4388 states, 4387 states have (on average 3.3827216776840667) internal successors, (14840), 4387 states have internal predecessors, (14840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:23:59,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4388 states to 4388 states and 14840 transitions. [2022-03-03 20:23:59,760 INFO L78 Accepts]: Start accepts. Automaton has 4388 states and 14840 transitions. Word has length 39 [2022-03-03 20:23:59,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:23:59,760 INFO L470 AbstractCegarLoop]: Abstraction has 4388 states and 14840 transitions. [2022-03-03 20:23:59,760 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:23:59,760 INFO L276 IsEmpty]: Start isEmpty. Operand 4388 states and 14840 transitions. [2022-03-03 20:23:59,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:23:59,765 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:23:59,766 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:23:59,766 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable250 [2022-03-03 20:23:59,766 INFO L402 AbstractCegarLoop]: === Iteration 252 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:23:59,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:23:59,766 INFO L85 PathProgramCache]: Analyzing trace with hash 1192163142, now seen corresponding path program 252 times [2022-03-03 20:23:59,766 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:23:59,766 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118792471] [2022-03-03 20:23:59,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:23:59,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:23:59,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:24:00,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:24:00,003 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:24:00,004 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118792471] [2022-03-03 20:24:00,004 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118792471] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:24:00,004 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:24:00,004 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:24:00,004 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824830331] [2022-03-03 20:24:00,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:24:00,004 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:24:00,004 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:24:00,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:24:00,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:24:00,004 INFO L87 Difference]: Start difference. First operand 4388 states and 14840 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:24:01,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:24:01,638 INFO L93 Difference]: Finished difference Result 5636 states and 18948 transitions. [2022-03-03 20:24:01,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-03 20:24:01,638 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:24:01,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:24:01,649 INFO L225 Difference]: With dead ends: 5636 [2022-03-03 20:24:01,649 INFO L226 Difference]: Without dead ends: 5569 [2022-03-03 20:24:01,649 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1228 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=426, Invalid=4130, Unknown=0, NotChecked=0, Total=4556 [2022-03-03 20:24:01,649 INFO L933 BasicCegarLoop]: 133 mSDtfsCounter, 287 mSDsluCounter, 1606 mSDsCounter, 0 mSdLazyCounter, 2331 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 1359 SdHoareTripleChecker+Invalid, 2402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 2331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 20:24:01,649 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [287 Valid, 1359 Invalid, 2402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 2331 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 20:24:01,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5569 states. [2022-03-03 20:24:01,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5569 to 4406. [2022-03-03 20:24:01,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4406 states, 4405 states have (on average 3.379795686719637) internal successors, (14888), 4405 states have internal predecessors, (14888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:24:01,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4406 states to 4406 states and 14888 transitions. [2022-03-03 20:24:01,710 INFO L78 Accepts]: Start accepts. Automaton has 4406 states and 14888 transitions. Word has length 39 [2022-03-03 20:24:01,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:24:01,711 INFO L470 AbstractCegarLoop]: Abstraction has 4406 states and 14888 transitions. [2022-03-03 20:24:01,711 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:24:01,711 INFO L276 IsEmpty]: Start isEmpty. Operand 4406 states and 14888 transitions. [2022-03-03 20:24:01,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:24:01,716 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:24:01,716 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:24:01,716 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable251 [2022-03-03 20:24:01,716 INFO L402 AbstractCegarLoop]: === Iteration 253 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:24:01,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:24:01,717 INFO L85 PathProgramCache]: Analyzing trace with hash 1061568294, now seen corresponding path program 253 times [2022-03-03 20:24:01,717 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:24:01,717 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854486401] [2022-03-03 20:24:01,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:24:01,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:24:01,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:24:01,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:24:01,874 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:24:01,874 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854486401] [2022-03-03 20:24:01,874 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854486401] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:24:01,874 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:24:01,874 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:24:01,874 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958311051] [2022-03-03 20:24:01,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:24:01,875 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:24:01,875 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:24:01,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:24:01,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:24:01,875 INFO L87 Difference]: Start difference. First operand 4406 states and 14888 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:24:03,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:24:03,027 INFO L93 Difference]: Finished difference Result 5539 states and 18688 transitions. [2022-03-03 20:24:03,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-03-03 20:24:03,027 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:24:03,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:24:03,039 INFO L225 Difference]: With dead ends: 5539 [2022-03-03 20:24:03,039 INFO L226 Difference]: Without dead ends: 5476 [2022-03-03 20:24:03,039 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1179 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=419, Invalid=4003, Unknown=0, NotChecked=0, Total=4422 [2022-03-03 20:24:03,040 INFO L933 BasicCegarLoop]: 126 mSDtfsCounter, 283 mSDsluCounter, 1511 mSDsCounter, 0 mSdLazyCounter, 2102 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 1293 SdHoareTripleChecker+Invalid, 2164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 2102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:24:03,040 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [283 Valid, 1293 Invalid, 2164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 2102 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:24:03,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5476 states. [2022-03-03 20:24:03,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5476 to 4406. [2022-03-03 20:24:03,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4406 states, 4405 states have (on average 3.3788876276958004) internal successors, (14884), 4405 states have internal predecessors, (14884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:24:03,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4406 states to 4406 states and 14884 transitions. [2022-03-03 20:24:03,166 INFO L78 Accepts]: Start accepts. Automaton has 4406 states and 14884 transitions. Word has length 39 [2022-03-03 20:24:03,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:24:03,166 INFO L470 AbstractCegarLoop]: Abstraction has 4406 states and 14884 transitions. [2022-03-03 20:24:03,166 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:24:03,166 INFO L276 IsEmpty]: Start isEmpty. Operand 4406 states and 14884 transitions. [2022-03-03 20:24:03,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:24:03,172 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:24:03,172 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:24:03,172 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable252 [2022-03-03 20:24:03,173 INFO L402 AbstractCegarLoop]: === Iteration 254 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:24:03,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:24:03,173 INFO L85 PathProgramCache]: Analyzing trace with hash 925889702, now seen corresponding path program 254 times [2022-03-03 20:24:03,173 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:24:03,173 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229864324] [2022-03-03 20:24:03,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:24:03,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:24:03,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:24:03,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:24:03,328 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:24:03,328 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229864324] [2022-03-03 20:24:03,328 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229864324] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:24:03,328 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:24:03,328 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:24:03,328 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778615348] [2022-03-03 20:24:03,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:24:03,329 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:24:03,329 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:24:03,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:24:03,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:24:03,329 INFO L87 Difference]: Start difference. First operand 4406 states and 14884 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:24:05,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:24:05,452 INFO L93 Difference]: Finished difference Result 5805 states and 19318 transitions. [2022-03-03 20:24:05,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-03-03 20:24:05,453 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:24:05,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:24:05,464 INFO L225 Difference]: With dead ends: 5805 [2022-03-03 20:24:05,464 INFO L226 Difference]: Without dead ends: 5723 [2022-03-03 20:24:05,465 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2324 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=628, Invalid=6854, Unknown=0, NotChecked=0, Total=7482 [2022-03-03 20:24:05,466 INFO L933 BasicCegarLoop]: 133 mSDtfsCounter, 368 mSDsluCounter, 1719 mSDsCounter, 0 mSdLazyCounter, 2581 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 368 SdHoareTripleChecker+Valid, 1443 SdHoareTripleChecker+Invalid, 2674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 2581 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 20:24:05,466 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [368 Valid, 1443 Invalid, 2674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 2581 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 20:24:05,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5723 states. [2022-03-03 20:24:05,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5723 to 4421. [2022-03-03 20:24:05,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4421 states, 4420 states have (on average 3.3762443438914027) internal successors, (14923), 4420 states have internal predecessors, (14923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:24:05,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4421 states to 4421 states and 14923 transitions. [2022-03-03 20:24:05,541 INFO L78 Accepts]: Start accepts. Automaton has 4421 states and 14923 transitions. Word has length 39 [2022-03-03 20:24:05,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:24:05,541 INFO L470 AbstractCegarLoop]: Abstraction has 4421 states and 14923 transitions. [2022-03-03 20:24:05,541 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:24:05,541 INFO L276 IsEmpty]: Start isEmpty. Operand 4421 states and 14923 transitions. [2022-03-03 20:24:05,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:24:05,548 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:24:05,548 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:24:05,548 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable253 [2022-03-03 20:24:05,549 INFO L402 AbstractCegarLoop]: === Iteration 255 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:24:05,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:24:05,549 INFO L85 PathProgramCache]: Analyzing trace with hash -854708600, now seen corresponding path program 255 times [2022-03-03 20:24:05,549 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:24:05,550 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612614237] [2022-03-03 20:24:05,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:24:05,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:24:05,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:24:05,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:24:05,766 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:24:05,766 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612614237] [2022-03-03 20:24:05,766 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612614237] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:24:05,766 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:24:05,766 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:24:05,766 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281505839] [2022-03-03 20:24:05,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:24:05,766 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:24:05,766 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:24:05,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:24:05,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:24:05,767 INFO L87 Difference]: Start difference. First operand 4421 states and 14923 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:24:07,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:24:07,867 INFO L93 Difference]: Finished difference Result 5707 states and 19089 transitions. [2022-03-03 20:24:07,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2022-03-03 20:24:07,867 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:24:07,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:24:07,879 INFO L225 Difference]: With dead ends: 5707 [2022-03-03 20:24:07,879 INFO L226 Difference]: Without dead ends: 5655 [2022-03-03 20:24:07,880 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2124 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=596, Invalid=6376, Unknown=0, NotChecked=0, Total=6972 [2022-03-03 20:24:07,880 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 350 mSDsluCounter, 1646 mSDsCounter, 0 mSdLazyCounter, 2480 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 350 SdHoareTripleChecker+Valid, 1401 SdHoareTripleChecker+Invalid, 2564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 2480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 20:24:07,880 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [350 Valid, 1401 Invalid, 2564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 2480 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 20:24:07,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5655 states. [2022-03-03 20:24:07,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5655 to 4413. [2022-03-03 20:24:07,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4413 states, 4412 states have (on average 3.377833182230281) internal successors, (14903), 4412 states have internal predecessors, (14903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:24:07,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4413 states to 4413 states and 14903 transitions. [2022-03-03 20:24:07,952 INFO L78 Accepts]: Start accepts. Automaton has 4413 states and 14903 transitions. Word has length 39 [2022-03-03 20:24:07,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:24:07,952 INFO L470 AbstractCegarLoop]: Abstraction has 4413 states and 14903 transitions. [2022-03-03 20:24:07,952 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:24:07,952 INFO L276 IsEmpty]: Start isEmpty. Operand 4413 states and 14903 transitions. [2022-03-03 20:24:07,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:24:07,958 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:24:07,958 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:24:07,958 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable254 [2022-03-03 20:24:07,959 INFO L402 AbstractCegarLoop]: === Iteration 256 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:24:07,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:24:07,959 INFO L85 PathProgramCache]: Analyzing trace with hash 1844373272, now seen corresponding path program 256 times [2022-03-03 20:24:07,959 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:24:07,959 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408600310] [2022-03-03 20:24:07,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:24:07,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:24:07,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:24:08,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:24:08,113 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:24:08,113 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408600310] [2022-03-03 20:24:08,113 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408600310] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:24:08,113 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:24:08,113 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:24:08,113 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572526304] [2022-03-03 20:24:08,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:24:08,113 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:24:08,113 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:24:08,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:24:08,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:24:08,114 INFO L87 Difference]: Start difference. First operand 4413 states and 14903 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:24:09,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:24:09,351 INFO L93 Difference]: Finished difference Result 5676 states and 18986 transitions. [2022-03-03 20:24:09,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-03-03 20:24:09,352 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:24:09,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:24:09,363 INFO L225 Difference]: With dead ends: 5676 [2022-03-03 20:24:09,363 INFO L226 Difference]: Without dead ends: 5621 [2022-03-03 20:24:09,364 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1326 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=455, Invalid=4375, Unknown=0, NotChecked=0, Total=4830 [2022-03-03 20:24:09,364 INFO L933 BasicCegarLoop]: 127 mSDtfsCounter, 312 mSDsluCounter, 1589 mSDsCounter, 0 mSdLazyCounter, 2189 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 1319 SdHoareTripleChecker+Invalid, 2254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 2189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:24:09,364 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [312 Valid, 1319 Invalid, 2254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 2189 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:24:09,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5621 states. [2022-03-03 20:24:09,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5621 to 4415. [2022-03-03 20:24:09,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4415 states, 4414 states have (on average 3.3769823289533303) internal successors, (14906), 4414 states have internal predecessors, (14906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:24:09,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4415 states to 4415 states and 14906 transitions. [2022-03-03 20:24:09,437 INFO L78 Accepts]: Start accepts. Automaton has 4415 states and 14906 transitions. Word has length 39 [2022-03-03 20:24:09,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:24:09,437 INFO L470 AbstractCegarLoop]: Abstraction has 4415 states and 14906 transitions. [2022-03-03 20:24:09,437 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:24:09,437 INFO L276 IsEmpty]: Start isEmpty. Operand 4415 states and 14906 transitions. [2022-03-03 20:24:09,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:24:09,443 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:24:09,444 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:24:09,444 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable255 [2022-03-03 20:24:09,444 INFO L402 AbstractCegarLoop]: === Iteration 257 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:24:09,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:24:09,444 INFO L85 PathProgramCache]: Analyzing trace with hash -1277941802, now seen corresponding path program 257 times [2022-03-03 20:24:09,444 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:24:09,444 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775901549] [2022-03-03 20:24:09,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:24:09,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:24:09,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:24:09,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:24:09,682 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:24:09,682 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775901549] [2022-03-03 20:24:09,682 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775901549] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:24:09,682 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:24:09,682 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:24:09,682 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781334329] [2022-03-03 20:24:09,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:24:09,683 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:24:09,683 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:24:09,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:24:09,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:24:09,683 INFO L87 Difference]: Start difference. First operand 4415 states and 14906 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:24:10,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:24:10,864 INFO L93 Difference]: Finished difference Result 5611 states and 18834 transitions. [2022-03-03 20:24:10,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-03-03 20:24:10,864 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:24:10,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:24:10,876 INFO L225 Difference]: With dead ends: 5611 [2022-03-03 20:24:10,876 INFO L226 Difference]: Without dead ends: 5565 [2022-03-03 20:24:10,877 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1175 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=425, Invalid=3997, Unknown=0, NotChecked=0, Total=4422 [2022-03-03 20:24:10,877 INFO L933 BasicCegarLoop]: 125 mSDtfsCounter, 301 mSDsluCounter, 1585 mSDsCounter, 0 mSdLazyCounter, 2154 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 1316 SdHoareTripleChecker+Invalid, 2212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 2154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:24:10,877 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [301 Valid, 1316 Invalid, 2212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 2154 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:24:10,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5565 states. [2022-03-03 20:24:10,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5565 to 4419. [2022-03-03 20:24:10,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4419 states, 4418 states have (on average 3.3757356269805343) internal successors, (14914), 4418 states have internal predecessors, (14914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:24:10,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4419 states to 4419 states and 14914 transitions. [2022-03-03 20:24:10,960 INFO L78 Accepts]: Start accepts. Automaton has 4419 states and 14914 transitions. Word has length 39 [2022-03-03 20:24:10,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:24:10,960 INFO L470 AbstractCegarLoop]: Abstraction has 4419 states and 14914 transitions. [2022-03-03 20:24:10,960 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:24:10,960 INFO L276 IsEmpty]: Start isEmpty. Operand 4419 states and 14914 transitions. [2022-03-03 20:24:10,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:24:10,967 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:24:10,967 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:24:10,967 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable256 [2022-03-03 20:24:10,967 INFO L402 AbstractCegarLoop]: === Iteration 258 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:24:10,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:24:10,967 INFO L85 PathProgramCache]: Analyzing trace with hash -1525407964, now seen corresponding path program 258 times [2022-03-03 20:24:10,967 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:24:10,968 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459672672] [2022-03-03 20:24:10,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:24:10,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:24:10,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:24:11,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:24:11,125 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:24:11,125 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459672672] [2022-03-03 20:24:11,125 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459672672] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:24:11,125 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:24:11,125 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:24:11,125 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586008366] [2022-03-03 20:24:11,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:24:11,125 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:24:11,125 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:24:11,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:24:11,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:24:11,126 INFO L87 Difference]: Start difference. First operand 4419 states and 14914 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:24:12,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:24:12,301 INFO L93 Difference]: Finished difference Result 5583 states and 18783 transitions. [2022-03-03 20:24:12,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-03-03 20:24:12,301 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:24:12,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:24:12,313 INFO L225 Difference]: With dead ends: 5583 [2022-03-03 20:24:12,313 INFO L226 Difference]: Without dead ends: 5534 [2022-03-03 20:24:12,313 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1224 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=437, Invalid=4119, Unknown=0, NotChecked=0, Total=4556 [2022-03-03 20:24:12,314 INFO L933 BasicCegarLoop]: 128 mSDtfsCounter, 317 mSDsluCounter, 1564 mSDsCounter, 0 mSdLazyCounter, 2139 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 317 SdHoareTripleChecker+Valid, 1334 SdHoareTripleChecker+Invalid, 2210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 2139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:24:12,314 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [317 Valid, 1334 Invalid, 2210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 2139 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:24:12,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5534 states. [2022-03-03 20:24:12,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5534 to 4409. [2022-03-03 20:24:12,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4409 states, 4408 states have (on average 3.3790834845735027) internal successors, (14895), 4408 states have internal predecessors, (14895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:24:12,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4409 states to 4409 states and 14895 transitions. [2022-03-03 20:24:12,419 INFO L78 Accepts]: Start accepts. Automaton has 4409 states and 14895 transitions. Word has length 39 [2022-03-03 20:24:12,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:24:12,419 INFO L470 AbstractCegarLoop]: Abstraction has 4409 states and 14895 transitions. [2022-03-03 20:24:12,419 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:24:12,419 INFO L276 IsEmpty]: Start isEmpty. Operand 4409 states and 14895 transitions. [2022-03-03 20:24:12,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:24:12,424 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:24:12,424 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:24:12,424 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable257 [2022-03-03 20:24:12,424 INFO L402 AbstractCegarLoop]: === Iteration 259 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:24:12,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:24:12,425 INFO L85 PathProgramCache]: Analyzing trace with hash -66868668, now seen corresponding path program 259 times [2022-03-03 20:24:12,425 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:24:12,425 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587938381] [2022-03-03 20:24:12,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:24:12,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:24:12,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:24:12,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:24:12,602 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:24:12,602 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587938381] [2022-03-03 20:24:12,602 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587938381] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:24:12,602 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:24:12,602 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:24:12,602 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15427525] [2022-03-03 20:24:12,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:24:12,602 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:24:12,602 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:24:12,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:24:12,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:24:12,602 INFO L87 Difference]: Start difference. First operand 4409 states and 14895 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:24:14,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:24:14,337 INFO L93 Difference]: Finished difference Result 5682 states and 19072 transitions. [2022-03-03 20:24:14,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-03 20:24:14,337 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:24:14,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:24:14,348 INFO L225 Difference]: With dead ends: 5682 [2022-03-03 20:24:14,349 INFO L226 Difference]: Without dead ends: 5615 [2022-03-03 20:24:14,349 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1231 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=410, Invalid=4146, Unknown=0, NotChecked=0, Total=4556 [2022-03-03 20:24:14,349 INFO L933 BasicCegarLoop]: 139 mSDtfsCounter, 297 mSDsluCounter, 1625 mSDsCounter, 0 mSdLazyCounter, 2442 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 1378 SdHoareTripleChecker+Invalid, 2509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 2442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 20:24:14,349 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [297 Valid, 1378 Invalid, 2509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 2442 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 20:24:14,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5615 states. [2022-03-03 20:24:14,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5615 to 4427. [2022-03-03 20:24:14,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4427 states, 4426 states have (on average 3.3748305467690916) internal successors, (14937), 4426 states have internal predecessors, (14937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:24:14,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4427 states to 4427 states and 14937 transitions. [2022-03-03 20:24:14,410 INFO L78 Accepts]: Start accepts. Automaton has 4427 states and 14937 transitions. Word has length 39 [2022-03-03 20:24:14,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:24:14,410 INFO L470 AbstractCegarLoop]: Abstraction has 4427 states and 14937 transitions. [2022-03-03 20:24:14,411 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:24:14,411 INFO L276 IsEmpty]: Start isEmpty. Operand 4427 states and 14937 transitions. [2022-03-03 20:24:14,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:24:14,416 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:24:14,416 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:24:14,416 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable258 [2022-03-03 20:24:14,416 INFO L402 AbstractCegarLoop]: === Iteration 260 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:24:14,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:24:14,416 INFO L85 PathProgramCache]: Analyzing trace with hash 291201540, now seen corresponding path program 260 times [2022-03-03 20:24:14,416 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:24:14,416 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100166728] [2022-03-03 20:24:14,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:24:14,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:24:14,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:24:14,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:24:14,641 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:24:14,641 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100166728] [2022-03-03 20:24:14,641 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100166728] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:24:14,641 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:24:14,641 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:24:14,641 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708022106] [2022-03-03 20:24:14,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:24:14,641 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:24:14,641 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:24:14,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:24:14,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:24:14,641 INFO L87 Difference]: Start difference. First operand 4427 states and 14937 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:24:16,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:24:16,318 INFO L93 Difference]: Finished difference Result 5644 states and 18947 transitions. [2022-03-03 20:24:16,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-03-03 20:24:16,318 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:24:16,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:24:16,328 INFO L225 Difference]: With dead ends: 5644 [2022-03-03 20:24:16,328 INFO L226 Difference]: Without dead ends: 5569 [2022-03-03 20:24:16,328 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1181 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=403, Invalid=4019, Unknown=0, NotChecked=0, Total=4422 [2022-03-03 20:24:16,328 INFO L933 BasicCegarLoop]: 133 mSDtfsCounter, 299 mSDsluCounter, 1578 mSDsCounter, 0 mSdLazyCounter, 2264 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 299 SdHoareTripleChecker+Valid, 1332 SdHoareTripleChecker+Invalid, 2321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 2264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 20:24:16,328 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [299 Valid, 1332 Invalid, 2321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 2264 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 20:24:16,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5569 states. [2022-03-03 20:24:16,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5569 to 4427. [2022-03-03 20:24:16,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4427 states, 4426 states have (on average 3.3734749209218258) internal successors, (14931), 4426 states have internal predecessors, (14931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:24:16,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4427 states to 4427 states and 14931 transitions. [2022-03-03 20:24:16,386 INFO L78 Accepts]: Start accepts. Automaton has 4427 states and 14931 transitions. Word has length 39 [2022-03-03 20:24:16,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:24:16,387 INFO L470 AbstractCegarLoop]: Abstraction has 4427 states and 14931 transitions. [2022-03-03 20:24:16,387 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:24:16,387 INFO L276 IsEmpty]: Start isEmpty. Operand 4427 states and 14931 transitions. [2022-03-03 20:24:16,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:24:16,392 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:24:16,392 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:24:16,392 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable259 [2022-03-03 20:24:16,392 INFO L402 AbstractCegarLoop]: === Iteration 261 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:24:16,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:24:16,392 INFO L85 PathProgramCache]: Analyzing trace with hash 1919506594, now seen corresponding path program 261 times [2022-03-03 20:24:16,392 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:24:16,392 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374462390] [2022-03-03 20:24:16,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:24:16,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:24:16,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:24:16,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:24:16,611 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:24:16,611 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374462390] [2022-03-03 20:24:16,611 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374462390] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:24:16,611 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:24:16,611 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:24:16,611 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603128397] [2022-03-03 20:24:16,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:24:16,611 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:24:16,611 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:24:16,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:24:16,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:24:16,611 INFO L87 Difference]: Start difference. First operand 4427 states and 14931 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:24:18,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:24:18,946 INFO L93 Difference]: Finished difference Result 5812 states and 19359 transitions. [2022-03-03 20:24:18,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-03-03 20:24:18,946 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:24:18,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:24:18,956 INFO L225 Difference]: With dead ends: 5812 [2022-03-03 20:24:18,957 INFO L226 Difference]: Without dead ends: 5720 [2022-03-03 20:24:18,957 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2330 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=605, Invalid=6877, Unknown=0, NotChecked=0, Total=7482 [2022-03-03 20:24:18,958 INFO L933 BasicCegarLoop]: 136 mSDtfsCounter, 367 mSDsluCounter, 1723 mSDsCounter, 0 mSdLazyCounter, 2650 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 367 SdHoareTripleChecker+Valid, 1445 SdHoareTripleChecker+Invalid, 2736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 2650 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-03 20:24:18,958 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [367 Valid, 1445 Invalid, 2736 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 2650 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-03 20:24:18,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5720 states. [2022-03-03 20:24:19,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5720 to 4432. [2022-03-03 20:24:19,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4432 states, 4431 states have (on average 3.372827804107425) internal successors, (14945), 4431 states have internal predecessors, (14945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:24:19,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4432 states to 4432 states and 14945 transitions. [2022-03-03 20:24:19,019 INFO L78 Accepts]: Start accepts. Automaton has 4432 states and 14945 transitions. Word has length 39 [2022-03-03 20:24:19,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:24:19,019 INFO L470 AbstractCegarLoop]: Abstraction has 4432 states and 14945 transitions. [2022-03-03 20:24:19,020 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:24:19,020 INFO L276 IsEmpty]: Start isEmpty. Operand 4432 states and 14945 transitions. [2022-03-03 20:24:19,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:24:19,025 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:24:19,025 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:24:19,025 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable260 [2022-03-03 20:24:19,025 INFO L402 AbstractCegarLoop]: === Iteration 262 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:24:19,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:24:19,025 INFO L85 PathProgramCache]: Analyzing trace with hash 138908292, now seen corresponding path program 262 times [2022-03-03 20:24:19,025 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:24:19,025 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457700077] [2022-03-03 20:24:19,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:24:19,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:24:19,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:24:19,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:24:19,268 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:24:19,268 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457700077] [2022-03-03 20:24:19,268 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457700077] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:24:19,268 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:24:19,268 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:24:19,268 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748488760] [2022-03-03 20:24:19,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:24:19,269 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:24:19,269 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:24:19,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:24:19,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:24:19,269 INFO L87 Difference]: Start difference. First operand 4432 states and 14945 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:24:21,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:24:21,231 INFO L93 Difference]: Finished difference Result 5751 states and 19210 transitions. [2022-03-03 20:24:21,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2022-03-03 20:24:21,232 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:24:21,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:24:21,243 INFO L225 Difference]: With dead ends: 5751 [2022-03-03 20:24:21,243 INFO L226 Difference]: Without dead ends: 5699 [2022-03-03 20:24:21,244 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2066 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=564, Invalid=6242, Unknown=0, NotChecked=0, Total=6806 [2022-03-03 20:24:21,244 INFO L933 BasicCegarLoop]: 134 mSDtfsCounter, 359 mSDsluCounter, 1655 mSDsCounter, 0 mSdLazyCounter, 2582 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 359 SdHoareTripleChecker+Valid, 1403 SdHoareTripleChecker+Invalid, 2662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 2582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 20:24:21,244 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [359 Valid, 1403 Invalid, 2662 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 2582 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 20:24:21,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5699 states. [2022-03-03 20:24:21,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5699 to 4426. [2022-03-03 20:24:21,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4426 states, 4425 states have (on average 3.3737853107344633) internal successors, (14929), 4425 states have internal predecessors, (14929), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:24:21,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4426 states to 4426 states and 14929 transitions. [2022-03-03 20:24:21,311 INFO L78 Accepts]: Start accepts. Automaton has 4426 states and 14929 transitions. Word has length 39 [2022-03-03 20:24:21,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:24:21,311 INFO L470 AbstractCegarLoop]: Abstraction has 4426 states and 14929 transitions. [2022-03-03 20:24:21,311 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:24:21,311 INFO L276 IsEmpty]: Start isEmpty. Operand 4426 states and 14929 transitions. [2022-03-03 20:24:21,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:24:21,316 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:24:21,316 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:24:21,316 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable261 [2022-03-03 20:24:21,316 INFO L402 AbstractCegarLoop]: === Iteration 263 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:24:21,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:24:21,317 INFO L85 PathProgramCache]: Analyzing trace with hash 382087364, now seen corresponding path program 263 times [2022-03-03 20:24:21,317 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:24:21,317 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562270132] [2022-03-03 20:24:21,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:24:21,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:24:21,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:24:21,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:24:21,472 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:24:21,472 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562270132] [2022-03-03 20:24:21,472 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562270132] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:24:21,472 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:24:21,472 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:24:21,472 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921150328] [2022-03-03 20:24:21,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:24:21,472 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:24:21,472 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:24:21,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:24:21,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:24:21,473 INFO L87 Difference]: Start difference. First operand 4426 states and 14929 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:24:22,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:24:22,623 INFO L93 Difference]: Finished difference Result 5765 states and 19209 transitions. [2022-03-03 20:24:22,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-03-03 20:24:22,623 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:24:22,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:24:22,634 INFO L225 Difference]: With dead ends: 5765 [2022-03-03 20:24:22,634 INFO L226 Difference]: Without dead ends: 5702 [2022-03-03 20:24:22,635 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1331 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=431, Invalid=4399, Unknown=0, NotChecked=0, Total=4830 [2022-03-03 20:24:22,635 INFO L933 BasicCegarLoop]: 132 mSDtfsCounter, 325 mSDsluCounter, 1630 mSDsCounter, 0 mSdLazyCounter, 2324 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 325 SdHoareTripleChecker+Valid, 1347 SdHoareTripleChecker+Invalid, 2386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 2324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:24:22,635 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [325 Valid, 1347 Invalid, 2386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 2324 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:24:22,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5702 states. [2022-03-03 20:24:22,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5702 to 4429. [2022-03-03 20:24:22,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4429 states, 4428 states have (on average 3.372628726287263) internal successors, (14934), 4428 states have internal predecessors, (14934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:24:22,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4429 states to 4429 states and 14934 transitions. [2022-03-03 20:24:22,717 INFO L78 Accepts]: Start accepts. Automaton has 4429 states and 14934 transitions. Word has length 39 [2022-03-03 20:24:22,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:24:22,717 INFO L470 AbstractCegarLoop]: Abstraction has 4429 states and 14934 transitions. [2022-03-03 20:24:22,717 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:24:22,717 INFO L276 IsEmpty]: Start isEmpty. Operand 4429 states and 14934 transitions. [2022-03-03 20:24:22,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:24:22,722 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:24:22,722 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:24:22,722 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable262 [2022-03-03 20:24:22,723 INFO L402 AbstractCegarLoop]: === Iteration 264 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:24:22,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:24:22,723 INFO L85 PathProgramCache]: Analyzing trace with hash -1545554394, now seen corresponding path program 264 times [2022-03-03 20:24:22,723 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:24:22,723 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446528515] [2022-03-03 20:24:22,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:24:22,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:24:22,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:24:22,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:24:22,965 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:24:22,965 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446528515] [2022-03-03 20:24:22,965 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446528515] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:24:22,965 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:24:22,965 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:24:22,965 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953618421] [2022-03-03 20:24:22,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:24:22,965 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:24:22,965 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:24:22,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:24:22,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:24:22,966 INFO L87 Difference]: Start difference. First operand 4429 states and 14934 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:24:24,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:24:24,237 INFO L93 Difference]: Finished difference Result 5656 states and 18956 transitions. [2022-03-03 20:24:24,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-03-03 20:24:24,237 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:24:24,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:24:24,248 INFO L225 Difference]: With dead ends: 5656 [2022-03-03 20:24:24,248 INFO L226 Difference]: Without dead ends: 5610 [2022-03-03 20:24:24,248 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1180 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=401, Invalid=4021, Unknown=0, NotChecked=0, Total=4422 [2022-03-03 20:24:24,248 INFO L933 BasicCegarLoop]: 128 mSDtfsCounter, 304 mSDsluCounter, 1565 mSDsCounter, 0 mSdLazyCounter, 2275 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 1300 SdHoareTripleChecker+Invalid, 2331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 2275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:24:24,249 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [304 Valid, 1300 Invalid, 2331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 2275 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:24:24,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5610 states. [2022-03-03 20:24:24,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5610 to 4436. [2022-03-03 20:24:24,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4436 states, 4435 states have (on average 3.370687711386697) internal successors, (14949), 4435 states have internal predecessors, (14949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:24:24,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4436 states to 4436 states and 14949 transitions. [2022-03-03 20:24:24,311 INFO L78 Accepts]: Start accepts. Automaton has 4436 states and 14949 transitions. Word has length 39 [2022-03-03 20:24:24,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:24:24,312 INFO L470 AbstractCegarLoop]: Abstraction has 4436 states and 14949 transitions. [2022-03-03 20:24:24,312 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:24:24,312 INFO L276 IsEmpty]: Start isEmpty. Operand 4436 states and 14949 transitions. [2022-03-03 20:24:24,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:24:24,317 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:24:24,317 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:24:24,317 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable263 [2022-03-03 20:24:24,317 INFO L402 AbstractCegarLoop]: === Iteration 265 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:24:24,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:24:24,317 INFO L85 PathProgramCache]: Analyzing trace with hash 1314345412, now seen corresponding path program 265 times [2022-03-03 20:24:24,317 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:24:24,317 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455603230] [2022-03-03 20:24:24,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:24:24,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:24:24,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:24:24,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:24:24,471 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:24:24,471 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455603230] [2022-03-03 20:24:24,471 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455603230] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:24:24,472 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:24:24,472 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:24:24,472 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717343165] [2022-03-03 20:24:24,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:24:24,472 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:24:24,472 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:24:24,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:24:24,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:24:24,472 INFO L87 Difference]: Start difference. First operand 4436 states and 14949 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:24:26,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:24:26,026 INFO L93 Difference]: Finished difference Result 5586 states and 18745 transitions. [2022-03-03 20:24:26,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-03-03 20:24:26,026 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:24:26,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:24:26,036 INFO L225 Difference]: With dead ends: 5586 [2022-03-03 20:24:26,036 INFO L226 Difference]: Without dead ends: 5525 [2022-03-03 20:24:26,037 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1126 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=384, Invalid=3906, Unknown=0, NotChecked=0, Total=4290 [2022-03-03 20:24:26,037 INFO L933 BasicCegarLoop]: 140 mSDtfsCounter, 305 mSDsluCounter, 1637 mSDsCounter, 0 mSdLazyCounter, 2393 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 305 SdHoareTripleChecker+Valid, 1386 SdHoareTripleChecker+Invalid, 2454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 2393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 20:24:26,037 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [305 Valid, 1386 Invalid, 2454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 2393 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 20:24:26,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5525 states. [2022-03-03 20:24:26,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5525 to 4420. [2022-03-03 20:24:26,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4420 states, 4419 states have (on average 3.375650599683186) internal successors, (14917), 4419 states have internal predecessors, (14917), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:24:26,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4420 states to 4420 states and 14917 transitions. [2022-03-03 20:24:26,096 INFO L78 Accepts]: Start accepts. Automaton has 4420 states and 14917 transitions. Word has length 39 [2022-03-03 20:24:26,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:24:26,097 INFO L470 AbstractCegarLoop]: Abstraction has 4420 states and 14917 transitions. [2022-03-03 20:24:26,097 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:24:26,097 INFO L276 IsEmpty]: Start isEmpty. Operand 4420 states and 14917 transitions. [2022-03-03 20:24:26,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:24:26,102 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:24:26,102 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:24:26,102 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable264 [2022-03-03 20:24:26,102 INFO L402 AbstractCegarLoop]: === Iteration 266 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:24:26,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:24:26,102 INFO L85 PathProgramCache]: Analyzing trace with hash -972824730, now seen corresponding path program 266 times [2022-03-03 20:24:26,102 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:24:26,102 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648757816] [2022-03-03 20:24:26,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:24:26,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:24:26,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:24:26,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:24:26,324 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:24:26,324 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648757816] [2022-03-03 20:24:26,324 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648757816] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:24:26,324 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:24:26,324 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:24:26,324 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134289536] [2022-03-03 20:24:26,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:24:26,324 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:24:26,324 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:24:26,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:24:26,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:24:26,324 INFO L87 Difference]: Start difference. First operand 4420 states and 14917 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:24:27,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:24:27,523 INFO L93 Difference]: Finished difference Result 5615 states and 19016 transitions. [2022-03-03 20:24:27,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-03-03 20:24:27,523 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:24:27,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:24:27,533 INFO L225 Difference]: With dead ends: 5615 [2022-03-03 20:24:27,533 INFO L226 Difference]: Without dead ends: 5552 [2022-03-03 20:24:27,534 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1042 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=374, Invalid=3658, Unknown=0, NotChecked=0, Total=4032 [2022-03-03 20:24:27,534 INFO L933 BasicCegarLoop]: 152 mSDtfsCounter, 298 mSDsluCounter, 1722 mSDsCounter, 0 mSdLazyCounter, 2399 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 1519 SdHoareTripleChecker+Invalid, 2460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 2399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:24:27,534 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [298 Valid, 1519 Invalid, 2460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 2399 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:24:27,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5552 states. [2022-03-03 20:24:27,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5552 to 4412. [2022-03-03 20:24:27,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4412 states, 4411 states have (on average 3.3772387213783723) internal successors, (14897), 4411 states have internal predecessors, (14897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:24:27,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4412 states to 4412 states and 14897 transitions. [2022-03-03 20:24:27,594 INFO L78 Accepts]: Start accepts. Automaton has 4412 states and 14897 transitions. Word has length 39 [2022-03-03 20:24:27,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:24:27,594 INFO L470 AbstractCegarLoop]: Abstraction has 4412 states and 14897 transitions. [2022-03-03 20:24:27,594 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:24:27,594 INFO L276 IsEmpty]: Start isEmpty. Operand 4412 states and 14897 transitions. [2022-03-03 20:24:27,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:24:27,601 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:24:27,601 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:24:27,601 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable265 [2022-03-03 20:24:27,601 INFO L402 AbstractCegarLoop]: === Iteration 267 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:24:27,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:24:27,601 INFO L85 PathProgramCache]: Analyzing trace with hash -1218316828, now seen corresponding path program 267 times [2022-03-03 20:24:27,601 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:24:27,601 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533173629] [2022-03-03 20:24:27,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:24:27,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:24:27,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:24:27,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:24:27,749 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:24:27,749 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533173629] [2022-03-03 20:24:27,749 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533173629] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:24:27,750 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:24:27,750 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:24:27,750 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758540104] [2022-03-03 20:24:27,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:24:27,750 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:24:27,750 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:24:27,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:24:27,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:24:27,750 INFO L87 Difference]: Start difference. First operand 4412 states and 14897 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:24:28,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:24:28,979 INFO L93 Difference]: Finished difference Result 5686 states and 19189 transitions. [2022-03-03 20:24:28,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-03-03 20:24:28,979 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:24:28,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:24:28,991 INFO L225 Difference]: With dead ends: 5686 [2022-03-03 20:24:28,991 INFO L226 Difference]: Without dead ends: 5611 [2022-03-03 20:24:28,991 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1042 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=374, Invalid=3658, Unknown=0, NotChecked=0, Total=4032 [2022-03-03 20:24:28,991 INFO L933 BasicCegarLoop]: 154 mSDtfsCounter, 308 mSDsluCounter, 1779 mSDsCounter, 0 mSdLazyCounter, 2464 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 1539 SdHoareTripleChecker+Invalid, 2524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 2464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:24:28,991 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [308 Valid, 1539 Invalid, 2524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 2464 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:24:28,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5611 states. [2022-03-03 20:24:29,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5611 to 4400. [2022-03-03 20:24:29,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4400 states, 4399 states have (on average 3.3796317344851103) internal successors, (14867), 4399 states have internal predecessors, (14867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:24:29,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4400 states to 4400 states and 14867 transitions. [2022-03-03 20:24:29,051 INFO L78 Accepts]: Start accepts. Automaton has 4400 states and 14867 transitions. Word has length 39 [2022-03-03 20:24:29,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:24:29,051 INFO L470 AbstractCegarLoop]: Abstraction has 4400 states and 14867 transitions. [2022-03-03 20:24:29,051 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:24:29,051 INFO L276 IsEmpty]: Start isEmpty. Operand 4400 states and 14867 transitions. [2022-03-03 20:24:29,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:24:29,057 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:24:29,057 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:24:29,057 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable266 [2022-03-03 20:24:29,057 INFO L402 AbstractCegarLoop]: === Iteration 268 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:24:29,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:24:29,057 INFO L85 PathProgramCache]: Analyzing trace with hash 1892945830, now seen corresponding path program 268 times [2022-03-03 20:24:29,057 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:24:29,057 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80780968] [2022-03-03 20:24:29,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:24:29,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:24:29,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:24:29,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:24:29,260 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:24:29,260 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80780968] [2022-03-03 20:24:29,260 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80780968] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:24:29,260 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:24:29,260 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:24:29,260 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135238215] [2022-03-03 20:24:29,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:24:29,261 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:24:29,261 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:24:29,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:24:29,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:24:29,261 INFO L87 Difference]: Start difference. First operand 4400 states and 14867 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:24:30,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:24:30,907 INFO L93 Difference]: Finished difference Result 6230 states and 20933 transitions. [2022-03-03 20:24:30,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-03 20:24:30,907 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:24:30,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:24:30,919 INFO L225 Difference]: With dead ends: 6230 [2022-03-03 20:24:30,919 INFO L226 Difference]: Without dead ends: 6175 [2022-03-03 20:24:30,919 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1179 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=396, Invalid=4026, Unknown=0, NotChecked=0, Total=4422 [2022-03-03 20:24:30,920 INFO L933 BasicCegarLoop]: 188 mSDtfsCounter, 353 mSDsluCounter, 2126 mSDsCounter, 0 mSdLazyCounter, 2821 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 353 SdHoareTripleChecker+Valid, 1890 SdHoareTripleChecker+Invalid, 2885 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 2821 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 20:24:30,920 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [353 Valid, 1890 Invalid, 2885 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 2821 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 20:24:30,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6175 states. [2022-03-03 20:24:30,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6175 to 4406. [2022-03-03 20:24:30,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4406 states, 4405 states have (on average 3.3779795686719636) internal successors, (14880), 4405 states have internal predecessors, (14880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:24:30,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4406 states to 4406 states and 14880 transitions. [2022-03-03 20:24:30,982 INFO L78 Accepts]: Start accepts. Automaton has 4406 states and 14880 transitions. Word has length 39 [2022-03-03 20:24:30,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:24:30,982 INFO L470 AbstractCegarLoop]: Abstraction has 4406 states and 14880 transitions. [2022-03-03 20:24:30,983 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:24:30,983 INFO L276 IsEmpty]: Start isEmpty. Operand 4406 states and 14880 transitions. [2022-03-03 20:24:30,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:24:30,988 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:24:30,988 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:24:30,988 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable267 [2022-03-03 20:24:30,988 INFO L402 AbstractCegarLoop]: === Iteration 269 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:24:30,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:24:30,988 INFO L85 PathProgramCache]: Analyzing trace with hash -1064963452, now seen corresponding path program 269 times [2022-03-03 20:24:30,988 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:24:30,988 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430535561] [2022-03-03 20:24:30,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:24:30,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:24:30,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:24:31,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:24:31,203 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:24:31,203 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430535561] [2022-03-03 20:24:31,203 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430535561] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:24:31,203 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:24:31,203 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:24:31,203 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61343872] [2022-03-03 20:24:31,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:24:31,203 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:24:31,203 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:24:31,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:24:31,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:24:31,204 INFO L87 Difference]: Start difference. First operand 4406 states and 14880 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:24:33,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:24:33,063 INFO L93 Difference]: Finished difference Result 6218 states and 20895 transitions. [2022-03-03 20:24:33,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-03 20:24:33,064 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:24:33,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:24:33,075 INFO L225 Difference]: With dead ends: 6218 [2022-03-03 20:24:33,075 INFO L226 Difference]: Without dead ends: 6145 [2022-03-03 20:24:33,076 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1179 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=396, Invalid=4026, Unknown=0, NotChecked=0, Total=4422 [2022-03-03 20:24:33,076 INFO L933 BasicCegarLoop]: 191 mSDtfsCounter, 344 mSDsluCounter, 2160 mSDsCounter, 0 mSdLazyCounter, 2823 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 1926 SdHoareTripleChecker+Invalid, 2887 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 2823 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-03 20:24:33,076 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [344 Valid, 1926 Invalid, 2887 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 2823 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-03 20:24:33,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6145 states. [2022-03-03 20:24:33,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6145 to 4396. [2022-03-03 20:24:33,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4396 states, 4395 states have (on average 3.380887372013652) internal successors, (14859), 4395 states have internal predecessors, (14859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:24:33,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4396 states to 4396 states and 14859 transitions. [2022-03-03 20:24:33,138 INFO L78 Accepts]: Start accepts. Automaton has 4396 states and 14859 transitions. Word has length 39 [2022-03-03 20:24:33,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:24:33,138 INFO L470 AbstractCegarLoop]: Abstraction has 4396 states and 14859 transitions. [2022-03-03 20:24:33,138 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:24:33,138 INFO L276 IsEmpty]: Start isEmpty. Operand 4396 states and 14859 transitions. [2022-03-03 20:24:33,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:24:33,143 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:24:33,143 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:24:33,143 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable268 [2022-03-03 20:24:33,143 INFO L402 AbstractCegarLoop]: === Iteration 270 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:24:33,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:24:33,143 INFO L85 PathProgramCache]: Analyzing trace with hash -1434538216, now seen corresponding path program 270 times [2022-03-03 20:24:33,143 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:24:33,144 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91697282] [2022-03-03 20:24:33,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:24:33,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:24:33,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:24:33,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:24:33,371 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:24:33,371 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91697282] [2022-03-03 20:24:33,371 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91697282] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:24:33,371 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:24:33,371 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:24:33,371 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700985602] [2022-03-03 20:24:33,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:24:33,371 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:24:33,371 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:24:33,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:24:33,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:24:33,371 INFO L87 Difference]: Start difference. First operand 4396 states and 14859 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:24:36,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:24:36,397 INFO L93 Difference]: Finished difference Result 8826 states and 29328 transitions. [2022-03-03 20:24:36,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2022-03-03 20:24:36,397 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:24:36,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:24:36,412 INFO L225 Difference]: With dead ends: 8826 [2022-03-03 20:24:36,413 INFO L226 Difference]: Without dead ends: 8626 [2022-03-03 20:24:36,413 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3514 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=797, Invalid=9709, Unknown=0, NotChecked=0, Total=10506 [2022-03-03 20:24:36,414 INFO L933 BasicCegarLoop]: 250 mSDtfsCounter, 537 mSDsluCounter, 3163 mSDsCounter, 0 mSdLazyCounter, 3803 mSolverCounterSat, 144 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 537 SdHoareTripleChecker+Valid, 2839 SdHoareTripleChecker+Invalid, 3947 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 144 IncrementalHoareTripleChecker+Valid, 3803 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-03-03 20:24:36,414 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [537 Valid, 2839 Invalid, 3947 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [144 Valid, 3803 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-03-03 20:24:36,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8626 states. [2022-03-03 20:24:36,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8626 to 5000. [2022-03-03 20:24:36,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5000 states, 4999 states have (on average 3.396879375875175) internal successors, (16981), 4999 states have internal predecessors, (16981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:24:36,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5000 states to 5000 states and 16981 transitions. [2022-03-03 20:24:36,496 INFO L78 Accepts]: Start accepts. Automaton has 5000 states and 16981 transitions. Word has length 39 [2022-03-03 20:24:36,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:24:36,496 INFO L470 AbstractCegarLoop]: Abstraction has 5000 states and 16981 transitions. [2022-03-03 20:24:36,496 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:24:36,496 INFO L276 IsEmpty]: Start isEmpty. Operand 5000 states and 16981 transitions. [2022-03-03 20:24:36,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:24:36,503 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:24:36,503 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:24:36,503 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable269 [2022-03-03 20:24:36,503 INFO L402 AbstractCegarLoop]: === Iteration 271 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:24:36,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:24:36,503 INFO L85 PathProgramCache]: Analyzing trace with hash -261885994, now seen corresponding path program 271 times [2022-03-03 20:24:36,503 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:24:36,503 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668215706] [2022-03-03 20:24:36,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:24:36,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:24:36,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:24:36,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:24:36,726 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:24:36,726 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668215706] [2022-03-03 20:24:36,726 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668215706] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:24:36,726 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:24:36,726 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:24:36,726 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405445332] [2022-03-03 20:24:36,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:24:36,726 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:24:36,726 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:24:36,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:24:36,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:24:36,726 INFO L87 Difference]: Start difference. First operand 5000 states and 16981 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:24:39,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:24:39,632 INFO L93 Difference]: Finished difference Result 8993 states and 29811 transitions. [2022-03-03 20:24:39,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2022-03-03 20:24:39,633 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:24:39,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:24:39,648 INFO L225 Difference]: With dead ends: 8993 [2022-03-03 20:24:39,648 INFO L226 Difference]: Without dead ends: 8756 [2022-03-03 20:24:39,649 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3112 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=751, Invalid=8755, Unknown=0, NotChecked=0, Total=9506 [2022-03-03 20:24:39,649 INFO L933 BasicCegarLoop]: 244 mSDtfsCounter, 516 mSDsluCounter, 3059 mSDsCounter, 0 mSdLazyCounter, 3671 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 516 SdHoareTripleChecker+Valid, 2741 SdHoareTripleChecker+Invalid, 3799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 3671 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-03-03 20:24:39,649 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [516 Valid, 2741 Invalid, 3799 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 3671 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-03-03 20:24:39,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8756 states. [2022-03-03 20:24:39,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8756 to 4980. [2022-03-03 20:24:39,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4980 states, 4979 states have (on average 3.4004820245029124) internal successors, (16931), 4979 states have internal predecessors, (16931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:24:39,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4980 states to 4980 states and 16931 transitions. [2022-03-03 20:24:39,728 INFO L78 Accepts]: Start accepts. Automaton has 4980 states and 16931 transitions. Word has length 39 [2022-03-03 20:24:39,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:24:39,728 INFO L470 AbstractCegarLoop]: Abstraction has 4980 states and 16931 transitions. [2022-03-03 20:24:39,728 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:24:39,728 INFO L276 IsEmpty]: Start isEmpty. Operand 4980 states and 16931 transitions. [2022-03-03 20:24:39,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:24:39,734 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:24:39,734 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:24:39,734 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable270 [2022-03-03 20:24:39,734 INFO L402 AbstractCegarLoop]: === Iteration 272 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:24:39,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:24:39,735 INFO L85 PathProgramCache]: Analyzing trace with hash -329630874, now seen corresponding path program 272 times [2022-03-03 20:24:39,735 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:24:39,735 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639612352] [2022-03-03 20:24:39,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:24:39,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:24:39,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:24:39,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:24:39,888 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:24:39,888 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639612352] [2022-03-03 20:24:39,888 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639612352] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:24:39,888 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:24:39,888 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:24:39,888 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197082829] [2022-03-03 20:24:39,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:24:39,888 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:24:39,888 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:24:39,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:24:39,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:24:39,889 INFO L87 Difference]: Start difference. First operand 4980 states and 16931 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:24:41,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:24:41,908 INFO L93 Difference]: Finished difference Result 8741 states and 29144 transitions. [2022-03-03 20:24:41,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-03-03 20:24:41,908 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:24:41,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:24:41,924 INFO L225 Difference]: With dead ends: 8741 [2022-03-03 20:24:41,924 INFO L226 Difference]: Without dead ends: 8609 [2022-03-03 20:24:41,925 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3353 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=761, Invalid=9339, Unknown=0, NotChecked=0, Total=10100 [2022-03-03 20:24:41,926 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 519 mSDsluCounter, 3027 mSDsCounter, 0 mSdLazyCounter, 3674 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 519 SdHoareTripleChecker+Valid, 2760 SdHoareTripleChecker+Invalid, 3811 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 3674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-03 20:24:41,926 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [519 Valid, 2760 Invalid, 3811 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 3674 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-03 20:24:41,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8609 states. [2022-03-03 20:24:42,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8609 to 5021. [2022-03-03 20:24:42,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5021 states, 5020 states have (on average 3.393426294820717) internal successors, (17035), 5020 states have internal predecessors, (17035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:24:42,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5021 states to 5021 states and 17035 transitions. [2022-03-03 20:24:42,032 INFO L78 Accepts]: Start accepts. Automaton has 5021 states and 17035 transitions. Word has length 39 [2022-03-03 20:24:42,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:24:42,032 INFO L470 AbstractCegarLoop]: Abstraction has 5021 states and 17035 transitions. [2022-03-03 20:24:42,033 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:24:42,033 INFO L276 IsEmpty]: Start isEmpty. Operand 5021 states and 17035 transitions. [2022-03-03 20:24:42,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:24:42,039 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:24:42,039 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:24:42,039 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable271 [2022-03-03 20:24:42,039 INFO L402 AbstractCegarLoop]: === Iteration 273 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:24:42,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:24:42,040 INFO L85 PathProgramCache]: Analyzing trace with hash 2037694664, now seen corresponding path program 273 times [2022-03-03 20:24:42,040 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:24:42,040 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203593166] [2022-03-03 20:24:42,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:24:42,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:24:42,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:24:42,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:24:42,186 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:24:42,186 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203593166] [2022-03-03 20:24:42,186 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203593166] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:24:42,186 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:24:42,186 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:24:42,186 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165400032] [2022-03-03 20:24:42,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:24:42,186 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:24:42,186 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:24:42,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:24:42,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:24:42,187 INFO L87 Difference]: Start difference. First operand 5021 states and 17035 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:24:44,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:24:44,092 INFO L93 Difference]: Finished difference Result 8871 states and 29524 transitions. [2022-03-03 20:24:44,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2022-03-03 20:24:44,092 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:24:44,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:24:44,109 INFO L225 Difference]: With dead ends: 8871 [2022-03-03 20:24:44,109 INFO L226 Difference]: Without dead ends: 8706 [2022-03-03 20:24:44,110 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2960 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=715, Invalid=8405, Unknown=0, NotChecked=0, Total=9120 [2022-03-03 20:24:44,110 INFO L933 BasicCegarLoop]: 242 mSDtfsCounter, 498 mSDsluCounter, 2951 mSDsCounter, 0 mSdLazyCounter, 3605 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 498 SdHoareTripleChecker+Valid, 2672 SdHoareTripleChecker+Invalid, 3728 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 3605 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 20:24:44,110 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [498 Valid, 2672 Invalid, 3728 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 3605 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 20:24:44,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8706 states. [2022-03-03 20:24:44,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8706 to 5003. [2022-03-03 20:24:44,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5003 states, 5002 states have (on average 3.3976409436225508) internal successors, (16995), 5002 states have internal predecessors, (16995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:24:44,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5003 states to 5003 states and 16995 transitions. [2022-03-03 20:24:44,195 INFO L78 Accepts]: Start accepts. Automaton has 5003 states and 16995 transitions. Word has length 39 [2022-03-03 20:24:44,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:24:44,195 INFO L470 AbstractCegarLoop]: Abstraction has 5003 states and 16995 transitions. [2022-03-03 20:24:44,195 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:24:44,195 INFO L276 IsEmpty]: Start isEmpty. Operand 5003 states and 16995 transitions. [2022-03-03 20:24:44,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:24:44,220 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:24:44,220 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:24:44,221 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable272 [2022-03-03 20:24:44,221 INFO L402 AbstractCegarLoop]: === Iteration 274 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:24:44,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:24:44,221 INFO L85 PathProgramCache]: Analyzing trace with hash -190458718, now seen corresponding path program 274 times [2022-03-03 20:24:44,221 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:24:44,221 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248686745] [2022-03-03 20:24:44,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:24:44,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:24:44,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:24:44,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:24:44,367 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:24:44,367 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248686745] [2022-03-03 20:24:44,367 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248686745] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:24:44,367 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:24:44,367 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:24:44,368 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207407872] [2022-03-03 20:24:44,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:24:44,368 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:24:44,368 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:24:44,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:24:44,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:24:44,368 INFO L87 Difference]: Start difference. First operand 5003 states and 16995 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:24:45,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:24:45,966 INFO L93 Difference]: Finished difference Result 6507 states and 21685 transitions. [2022-03-03 20:24:45,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2022-03-03 20:24:45,966 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:24:45,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:24:45,978 INFO L225 Difference]: With dead ends: 6507 [2022-03-03 20:24:45,978 INFO L226 Difference]: Without dead ends: 6373 [2022-03-03 20:24:45,979 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2186 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=579, Invalid=6561, Unknown=0, NotChecked=0, Total=7140 [2022-03-03 20:24:45,979 INFO L933 BasicCegarLoop]: 146 mSDtfsCounter, 388 mSDsluCounter, 1914 mSDsCounter, 0 mSdLazyCounter, 2808 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 388 SdHoareTripleChecker+Valid, 1564 SdHoareTripleChecker+Invalid, 2904 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 2808 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-03 20:24:45,979 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [388 Valid, 1564 Invalid, 2904 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 2808 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-03 20:24:45,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6373 states. [2022-03-03 20:24:46,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6373 to 5016. [2022-03-03 20:24:46,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5016 states, 5015 states have (on average 3.39740777666999) internal successors, (17038), 5015 states have internal predecessors, (17038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:24:46,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5016 states to 5016 states and 17038 transitions. [2022-03-03 20:24:46,051 INFO L78 Accepts]: Start accepts. Automaton has 5016 states and 17038 transitions. Word has length 39 [2022-03-03 20:24:46,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:24:46,051 INFO L470 AbstractCegarLoop]: Abstraction has 5016 states and 17038 transitions. [2022-03-03 20:24:46,051 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:24:46,051 INFO L276 IsEmpty]: Start isEmpty. Operand 5016 states and 17038 transitions. [2022-03-03 20:24:46,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:24:46,057 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:24:46,057 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:24:46,057 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable273 [2022-03-03 20:24:46,057 INFO L402 AbstractCegarLoop]: === Iteration 275 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:24:46,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:24:46,058 INFO L85 PathProgramCache]: Analyzing trace with hash 728024852, now seen corresponding path program 275 times [2022-03-03 20:24:46,058 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:24:46,058 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124284311] [2022-03-03 20:24:46,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:24:46,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:24:46,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:24:46,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:24:46,199 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:24:46,199 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124284311] [2022-03-03 20:24:46,199 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124284311] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:24:46,200 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:24:46,200 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:24:46,200 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709490195] [2022-03-03 20:24:46,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:24:46,200 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:24:46,200 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:24:46,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:24:46,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:24:46,200 INFO L87 Difference]: Start difference. First operand 5016 states and 17038 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:24:47,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:24:47,512 INFO L93 Difference]: Finished difference Result 6279 states and 21136 transitions. [2022-03-03 20:24:47,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-03-03 20:24:47,512 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:24:47,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:24:47,523 INFO L225 Difference]: With dead ends: 6279 [2022-03-03 20:24:47,523 INFO L226 Difference]: Without dead ends: 6236 [2022-03-03 20:24:47,524 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1083 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=370, Invalid=3790, Unknown=0, NotChecked=0, Total=4160 [2022-03-03 20:24:47,524 INFO L933 BasicCegarLoop]: 134 mSDtfsCounter, 335 mSDsluCounter, 1701 mSDsCounter, 0 mSdLazyCounter, 2376 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 335 SdHoareTripleChecker+Valid, 1360 SdHoareTripleChecker+Invalid, 2441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 2376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:24:47,524 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [335 Valid, 1360 Invalid, 2441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 2376 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:24:47,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6236 states. [2022-03-03 20:24:47,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6236 to 5022. [2022-03-03 20:24:47,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5022 states, 5021 states have (on average 3.395937064329815) internal successors, (17051), 5021 states have internal predecessors, (17051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:24:47,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5022 states to 5022 states and 17051 transitions. [2022-03-03 20:24:47,591 INFO L78 Accepts]: Start accepts. Automaton has 5022 states and 17051 transitions. Word has length 39 [2022-03-03 20:24:47,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:24:47,591 INFO L470 AbstractCegarLoop]: Abstraction has 5022 states and 17051 transitions. [2022-03-03 20:24:47,591 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:24:47,591 INFO L276 IsEmpty]: Start isEmpty. Operand 5022 states and 17051 transitions. [2022-03-03 20:24:47,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:24:47,597 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:24:47,598 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:24:47,598 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable274 [2022-03-03 20:24:47,598 INFO L402 AbstractCegarLoop]: === Iteration 276 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:24:47,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:24:47,598 INFO L85 PathProgramCache]: Analyzing trace with hash 748173586, now seen corresponding path program 276 times [2022-03-03 20:24:47,598 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:24:47,598 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474847620] [2022-03-03 20:24:47,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:24:47,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:24:47,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:24:47,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:24:47,756 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:24:47,756 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474847620] [2022-03-03 20:24:47,756 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474847620] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:24:47,756 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:24:47,756 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:24:47,756 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458231217] [2022-03-03 20:24:47,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:24:47,756 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:24:47,756 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:24:47,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:24:47,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:24:47,757 INFO L87 Difference]: Start difference. First operand 5022 states and 17051 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:24:49,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:24:49,462 INFO L93 Difference]: Finished difference Result 6239 states and 21053 transitions. [2022-03-03 20:24:49,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-03-03 20:24:49,462 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:24:49,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:24:49,474 INFO L225 Difference]: With dead ends: 6239 [2022-03-03 20:24:49,474 INFO L226 Difference]: Without dead ends: 6196 [2022-03-03 20:24:49,474 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1132 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=382, Invalid=3908, Unknown=0, NotChecked=0, Total=4290 [2022-03-03 20:24:49,475 INFO L933 BasicCegarLoop]: 137 mSDtfsCounter, 341 mSDsluCounter, 1697 mSDsCounter, 0 mSdLazyCounter, 2379 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 341 SdHoareTripleChecker+Valid, 1376 SdHoareTripleChecker+Invalid, 2456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 2379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 20:24:49,475 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [341 Valid, 1376 Invalid, 2456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 2379 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 20:24:49,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6196 states. [2022-03-03 20:24:49,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6196 to 5018. [2022-03-03 20:24:49,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5018 states, 5017 states have (on average 3.396651385290014) internal successors, (17041), 5017 states have internal predecessors, (17041), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:24:49,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5018 states to 5018 states and 17041 transitions. [2022-03-03 20:24:49,544 INFO L78 Accepts]: Start accepts. Automaton has 5018 states and 17041 transitions. Word has length 39 [2022-03-03 20:24:49,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:24:49,544 INFO L470 AbstractCegarLoop]: Abstraction has 5018 states and 17041 transitions. [2022-03-03 20:24:49,544 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:24:49,544 INFO L276 IsEmpty]: Start isEmpty. Operand 5018 states and 17041 transitions. [2022-03-03 20:24:49,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:24:49,550 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:24:49,550 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:24:49,550 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable275 [2022-03-03 20:24:49,550 INFO L402 AbstractCegarLoop]: === Iteration 277 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:24:49,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:24:49,550 INFO L85 PathProgramCache]: Analyzing trace with hash 1900677074, now seen corresponding path program 277 times [2022-03-03 20:24:49,551 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:24:49,551 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978046630] [2022-03-03 20:24:49,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:24:49,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:24:49,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:24:49,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:24:49,719 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:24:49,720 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978046630] [2022-03-03 20:24:49,720 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978046630] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:24:49,720 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:24:49,720 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:24:49,720 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450809957] [2022-03-03 20:24:49,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:24:49,721 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:24:49,721 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:24:49,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:24:49,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:24:49,721 INFO L87 Difference]: Start difference. First operand 5018 states and 17041 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:24:50,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:24:50,924 INFO L93 Difference]: Finished difference Result 6310 states and 21213 transitions. [2022-03-03 20:24:50,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-03 20:24:50,924 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:24:50,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:24:50,936 INFO L225 Difference]: With dead ends: 6310 [2022-03-03 20:24:50,936 INFO L226 Difference]: Without dead ends: 6250 [2022-03-03 20:24:50,937 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1223 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=401, Invalid=4155, Unknown=0, NotChecked=0, Total=4556 [2022-03-03 20:24:50,937 INFO L933 BasicCegarLoop]: 135 mSDtfsCounter, 347 mSDsluCounter, 1699 mSDsCounter, 0 mSdLazyCounter, 2386 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 1384 SdHoareTripleChecker+Invalid, 2461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 2386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:24:50,937 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [347 Valid, 1384 Invalid, 2461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 2386 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:24:50,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6250 states. [2022-03-03 20:24:50,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6250 to 5018. [2022-03-03 20:24:51,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5018 states, 5017 states have (on average 3.396651385290014) internal successors, (17041), 5017 states have internal predecessors, (17041), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:24:51,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5018 states to 5018 states and 17041 transitions. [2022-03-03 20:24:51,011 INFO L78 Accepts]: Start accepts. Automaton has 5018 states and 17041 transitions. Word has length 39 [2022-03-03 20:24:51,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:24:51,011 INFO L470 AbstractCegarLoop]: Abstraction has 5018 states and 17041 transitions. [2022-03-03 20:24:51,011 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:24:51,011 INFO L276 IsEmpty]: Start isEmpty. Operand 5018 states and 17041 transitions. [2022-03-03 20:24:51,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:24:51,018 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:24:51,018 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:24:51,018 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable276 [2022-03-03 20:24:51,018 INFO L402 AbstractCegarLoop]: === Iteration 278 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:24:51,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:24:51,019 INFO L85 PathProgramCache]: Analyzing trace with hash -178889468, now seen corresponding path program 278 times [2022-03-03 20:24:51,019 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:24:51,019 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562385440] [2022-03-03 20:24:51,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:24:51,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:24:51,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:24:51,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:24:51,158 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:24:51,158 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562385440] [2022-03-03 20:24:51,158 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562385440] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:24:51,158 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:24:51,158 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:24:51,158 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386883593] [2022-03-03 20:24:51,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:24:51,158 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:24:51,158 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:24:51,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:24:51,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:24:51,158 INFO L87 Difference]: Start difference. First operand 5018 states and 17041 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:24:52,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:24:52,586 INFO L93 Difference]: Finished difference Result 6281 states and 21154 transitions. [2022-03-03 20:24:52,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-03-03 20:24:52,586 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:24:52,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:24:52,598 INFO L225 Difference]: With dead ends: 6281 [2022-03-03 20:24:52,598 INFO L226 Difference]: Without dead ends: 6205 [2022-03-03 20:24:52,599 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1038 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=358, Invalid=3548, Unknown=0, NotChecked=0, Total=3906 [2022-03-03 20:24:52,599 INFO L933 BasicCegarLoop]: 134 mSDtfsCounter, 308 mSDsluCounter, 1531 mSDsCounter, 0 mSdLazyCounter, 2186 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 1255 SdHoareTripleChecker+Invalid, 2253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 2186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-03 20:24:52,599 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [308 Valid, 1255 Invalid, 2253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 2186 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-03 20:24:52,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6205 states. [2022-03-03 20:24:52,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6205 to 5026. [2022-03-03 20:24:52,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5026 states, 5025 states have (on average 3.3944278606965175) internal successors, (17057), 5025 states have internal predecessors, (17057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:24:52,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5026 states to 5026 states and 17057 transitions. [2022-03-03 20:24:52,701 INFO L78 Accepts]: Start accepts. Automaton has 5026 states and 17057 transitions. Word has length 39 [2022-03-03 20:24:52,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:24:52,701 INFO L470 AbstractCegarLoop]: Abstraction has 5026 states and 17057 transitions. [2022-03-03 20:24:52,701 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:24:52,702 INFO L276 IsEmpty]: Start isEmpty. Operand 5026 states and 17057 transitions. [2022-03-03 20:24:52,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:24:52,708 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:24:52,708 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:24:52,708 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable277 [2022-03-03 20:24:52,709 INFO L402 AbstractCegarLoop]: === Iteration 279 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:24:52,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:24:52,709 INFO L85 PathProgramCache]: Analyzing trace with hash -1196943080, now seen corresponding path program 279 times [2022-03-03 20:24:52,709 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:24:52,709 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497806992] [2022-03-03 20:24:52,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:24:52,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:24:52,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:24:52,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:24:52,951 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:24:52,951 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497806992] [2022-03-03 20:24:52,951 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497806992] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:24:52,951 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:24:52,951 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:24:52,951 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827088150] [2022-03-03 20:24:52,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:24:52,951 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:24:52,951 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:24:52,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:24:52,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:24:52,951 INFO L87 Difference]: Start difference. First operand 5026 states and 17057 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:24:54,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:24:54,647 INFO L93 Difference]: Finished difference Result 6263 states and 21100 transitions. [2022-03-03 20:24:54,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-03-03 20:24:54,648 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:24:54,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:24:54,659 INFO L225 Difference]: With dead ends: 6263 [2022-03-03 20:24:54,659 INFO L226 Difference]: Without dead ends: 6193 [2022-03-03 20:24:54,660 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1177 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=383, Invalid=4039, Unknown=0, NotChecked=0, Total=4422 [2022-03-03 20:24:54,660 INFO L933 BasicCegarLoop]: 137 mSDtfsCounter, 328 mSDsluCounter, 1721 mSDsCounter, 0 mSdLazyCounter, 2350 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 328 SdHoareTripleChecker+Valid, 1407 SdHoareTripleChecker+Invalid, 2423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 2350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 20:24:54,660 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [328 Valid, 1407 Invalid, 2423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 2350 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 20:24:54,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6193 states. [2022-03-03 20:24:54,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6193 to 5014. [2022-03-03 20:24:54,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5014 states, 5013 states have (on average 3.3965689208059047) internal successors, (17027), 5013 states have internal predecessors, (17027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:24:54,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5014 states to 5014 states and 17027 transitions. [2022-03-03 20:24:54,730 INFO L78 Accepts]: Start accepts. Automaton has 5014 states and 17027 transitions. Word has length 39 [2022-03-03 20:24:54,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:24:54,730 INFO L470 AbstractCegarLoop]: Abstraction has 5014 states and 17027 transitions. [2022-03-03 20:24:54,730 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:24:54,730 INFO L276 IsEmpty]: Start isEmpty. Operand 5014 states and 17027 transitions. [2022-03-03 20:24:54,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:24:54,736 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:24:54,736 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:24:54,736 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable278 [2022-03-03 20:24:54,736 INFO L402 AbstractCegarLoop]: === Iteration 280 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:24:54,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:24:54,736 INFO L85 PathProgramCache]: Analyzing trace with hash -720555210, now seen corresponding path program 280 times [2022-03-03 20:24:54,736 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:24:54,736 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684668081] [2022-03-03 20:24:54,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:24:54,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:24:54,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:24:54,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:24:54,954 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:24:54,954 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684668081] [2022-03-03 20:24:54,954 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684668081] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:24:54,954 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:24:54,954 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:24:54,954 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451521312] [2022-03-03 20:24:54,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:24:54,954 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:24:54,954 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:24:54,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:24:54,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:24:54,955 INFO L87 Difference]: Start difference. First operand 5014 states and 17027 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:24:57,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:24:57,297 INFO L93 Difference]: Finished difference Result 6506 states and 21713 transitions. [2022-03-03 20:24:57,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2022-03-03 20:24:57,298 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:24:57,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:24:57,309 INFO L225 Difference]: With dead ends: 6506 [2022-03-03 20:24:57,309 INFO L226 Difference]: Without dead ends: 6362 [2022-03-03 20:24:57,310 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2188 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=569, Invalid=6571, Unknown=0, NotChecked=0, Total=7140 [2022-03-03 20:24:57,310 INFO L933 BasicCegarLoop]: 149 mSDtfsCounter, 382 mSDsluCounter, 1918 mSDsCounter, 0 mSdLazyCounter, 2808 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 382 SdHoareTripleChecker+Valid, 1578 SdHoareTripleChecker+Invalid, 2901 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 2808 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-03 20:24:57,310 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [382 Valid, 1578 Invalid, 2901 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 2808 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-03 20:24:57,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6362 states. [2022-03-03 20:24:57,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6362 to 5023. [2022-03-03 20:24:57,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5023 states, 5022 states have (on average 3.3944643568299484) internal successors, (17047), 5022 states have internal predecessors, (17047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:24:57,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5023 states to 5023 states and 17047 transitions. [2022-03-03 20:24:57,378 INFO L78 Accepts]: Start accepts. Automaton has 5023 states and 17047 transitions. Word has length 39 [2022-03-03 20:24:57,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:24:57,379 INFO L470 AbstractCegarLoop]: Abstraction has 5023 states and 17047 transitions. [2022-03-03 20:24:57,379 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:24:57,379 INFO L276 IsEmpty]: Start isEmpty. Operand 5023 states and 17047 transitions. [2022-03-03 20:24:57,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:24:57,385 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:24:57,385 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:24:57,385 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable279 [2022-03-03 20:24:57,385 INFO L402 AbstractCegarLoop]: === Iteration 281 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:24:57,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:24:57,385 INFO L85 PathProgramCache]: Analyzing trace with hash 2036992856, now seen corresponding path program 281 times [2022-03-03 20:24:57,385 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:24:57,385 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692312757] [2022-03-03 20:24:57,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:24:57,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:24:57,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:24:57,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:24:57,603 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:24:57,603 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692312757] [2022-03-03 20:24:57,603 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692312757] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:24:57,603 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:24:57,603 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:24:57,603 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715223564] [2022-03-03 20:24:57,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:24:57,603 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:24:57,603 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:24:57,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:24:57,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:24:57,604 INFO L87 Difference]: Start difference. First operand 5023 states and 17047 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:24:59,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:24:59,232 INFO L93 Difference]: Finished difference Result 6320 states and 21252 transitions. [2022-03-03 20:24:59,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-03-03 20:24:59,232 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:24:59,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:24:59,244 INFO L225 Difference]: With dead ends: 6320 [2022-03-03 20:24:59,244 INFO L226 Difference]: Without dead ends: 6277 [2022-03-03 20:24:59,245 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1084 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=359, Invalid=3801, Unknown=0, NotChecked=0, Total=4160 [2022-03-03 20:24:59,245 INFO L933 BasicCegarLoop]: 137 mSDtfsCounter, 335 mSDsluCounter, 1704 mSDsCounter, 0 mSdLazyCounter, 2420 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 335 SdHoareTripleChecker+Valid, 1380 SdHoareTripleChecker+Invalid, 2483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 2420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 20:24:59,245 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [335 Valid, 1380 Invalid, 2483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 2420 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 20:24:59,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6277 states. [2022-03-03 20:24:59,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6277 to 5032. [2022-03-03 20:24:59,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5032 states, 5031 states have (on average 3.392566090240509) internal successors, (17068), 5031 states have internal predecessors, (17068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:24:59,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5032 states to 5032 states and 17068 transitions. [2022-03-03 20:24:59,315 INFO L78 Accepts]: Start accepts. Automaton has 5032 states and 17068 transitions. Word has length 39 [2022-03-03 20:24:59,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:24:59,315 INFO L470 AbstractCegarLoop]: Abstraction has 5032 states and 17068 transitions. [2022-03-03 20:24:59,315 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:24:59,316 INFO L276 IsEmpty]: Start isEmpty. Operand 5032 states and 17068 transitions. [2022-03-03 20:24:59,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:24:59,322 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:24:59,322 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:24:59,322 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable280 [2022-03-03 20:24:59,322 INFO L402 AbstractCegarLoop]: === Iteration 282 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:24:59,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:24:59,322 INFO L85 PathProgramCache]: Analyzing trace with hash -507867304, now seen corresponding path program 282 times [2022-03-03 20:24:59,322 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:24:59,322 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55582526] [2022-03-03 20:24:59,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:24:59,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:24:59,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:24:59,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:24:59,497 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:24:59,497 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55582526] [2022-03-03 20:24:59,497 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55582526] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:24:59,497 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:24:59,497 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:24:59,497 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115764440] [2022-03-03 20:24:59,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:24:59,497 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:24:59,497 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:24:59,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:24:59,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:24:59,498 INFO L87 Difference]: Start difference. First operand 5032 states and 17068 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:00,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:25:00,650 INFO L93 Difference]: Finished difference Result 6228 states and 20986 transitions. [2022-03-03 20:25:00,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-03-03 20:25:00,650 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:25:00,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:25:00,661 INFO L225 Difference]: With dead ends: 6228 [2022-03-03 20:25:00,661 INFO L226 Difference]: Without dead ends: 6177 [2022-03-03 20:25:00,662 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1083 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=355, Invalid=3805, Unknown=0, NotChecked=0, Total=4160 [2022-03-03 20:25:00,662 INFO L933 BasicCegarLoop]: 146 mSDtfsCounter, 334 mSDsluCounter, 1756 mSDsCounter, 0 mSdLazyCounter, 2500 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 1450 SdHoareTripleChecker+Invalid, 2568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 2500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:25:00,662 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [334 Valid, 1450 Invalid, 2568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 2500 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:25:00,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6177 states. [2022-03-03 20:25:00,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6177 to 5026. [2022-03-03 20:25:00,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5026 states, 5025 states have (on average 3.3934328358208954) internal successors, (17052), 5025 states have internal predecessors, (17052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:00,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5026 states to 5026 states and 17052 transitions. [2022-03-03 20:25:00,731 INFO L78 Accepts]: Start accepts. Automaton has 5026 states and 17052 transitions. Word has length 39 [2022-03-03 20:25:00,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:25:00,731 INFO L470 AbstractCegarLoop]: Abstraction has 5026 states and 17052 transitions. [2022-03-03 20:25:00,731 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:00,731 INFO L276 IsEmpty]: Start isEmpty. Operand 5026 states and 17052 transitions. [2022-03-03 20:25:00,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:25:00,737 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:25:00,738 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:25:00,738 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable281 [2022-03-03 20:25:00,738 INFO L402 AbstractCegarLoop]: === Iteration 283 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:25:00,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:25:00,738 INFO L85 PathProgramCache]: Analyzing trace with hash 109351098, now seen corresponding path program 283 times [2022-03-03 20:25:00,738 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:25:00,738 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496311291] [2022-03-03 20:25:00,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:25:00,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:25:00,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:25:00,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:25:00,880 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:25:00,880 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496311291] [2022-03-03 20:25:00,880 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496311291] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:25:00,880 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:25:00,880 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:25:00,880 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911365238] [2022-03-03 20:25:00,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:25:00,880 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:25:00,880 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:25:00,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:25:00,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:25:00,881 INFO L87 Difference]: Start difference. First operand 5026 states and 17052 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:02,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:25:02,074 INFO L93 Difference]: Finished difference Result 6386 states and 21401 transitions. [2022-03-03 20:25:02,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-03 20:25:02,074 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:25:02,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:25:02,086 INFO L225 Difference]: With dead ends: 6386 [2022-03-03 20:25:02,086 INFO L226 Difference]: Without dead ends: 6314 [2022-03-03 20:25:02,086 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1228 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=391, Invalid=4165, Unknown=0, NotChecked=0, Total=4556 [2022-03-03 20:25:02,086 INFO L933 BasicCegarLoop]: 138 mSDtfsCounter, 361 mSDsluCounter, 1701 mSDsCounter, 0 mSdLazyCounter, 2453 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 361 SdHoareTripleChecker+Valid, 1388 SdHoareTripleChecker+Invalid, 2524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 2453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:25:02,086 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [361 Valid, 1388 Invalid, 2524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 2453 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:25:02,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6314 states. [2022-03-03 20:25:02,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6314 to 5021. [2022-03-03 20:25:02,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5021 states, 5020 states have (on average 3.394223107569721) internal successors, (17039), 5020 states have internal predecessors, (17039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:02,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5021 states to 5021 states and 17039 transitions. [2022-03-03 20:25:02,177 INFO L78 Accepts]: Start accepts. Automaton has 5021 states and 17039 transitions. Word has length 39 [2022-03-03 20:25:02,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:25:02,177 INFO L470 AbstractCegarLoop]: Abstraction has 5021 states and 17039 transitions. [2022-03-03 20:25:02,177 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:02,178 INFO L276 IsEmpty]: Start isEmpty. Operand 5021 states and 17039 transitions. [2022-03-03 20:25:02,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:25:02,184 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:25:02,184 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:25:02,184 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable282 [2022-03-03 20:25:02,184 INFO L402 AbstractCegarLoop]: === Iteration 284 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:25:02,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:25:02,184 INFO L85 PathProgramCache]: Analyzing trace with hash -1906333102, now seen corresponding path program 284 times [2022-03-03 20:25:02,184 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:25:02,184 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401143795] [2022-03-03 20:25:02,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:25:02,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:25:02,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:25:02,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:25:02,320 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:25:02,320 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401143795] [2022-03-03 20:25:02,320 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401143795] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:25:02,320 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:25:02,320 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:25:02,320 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245073766] [2022-03-03 20:25:02,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:25:02,320 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:25:02,320 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:25:02,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:25:02,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:25:02,320 INFO L87 Difference]: Start difference. First operand 5021 states and 17039 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:03,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:25:03,345 INFO L93 Difference]: Finished difference Result 6267 states and 21138 transitions. [2022-03-03 20:25:03,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-03-03 20:25:03,345 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:25:03,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:25:03,356 INFO L225 Difference]: With dead ends: 6267 [2022-03-03 20:25:03,356 INFO L226 Difference]: Without dead ends: 6191 [2022-03-03 20:25:03,357 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 994 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=348, Invalid=3434, Unknown=0, NotChecked=0, Total=3782 [2022-03-03 20:25:03,357 INFO L933 BasicCegarLoop]: 136 mSDtfsCounter, 307 mSDsluCounter, 1501 mSDsCounter, 0 mSdLazyCounter, 2164 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 307 SdHoareTripleChecker+Valid, 1247 SdHoareTripleChecker+Invalid, 2227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 2164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:25:03,357 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [307 Valid, 1247 Invalid, 2227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 2164 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:25:03,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6191 states. [2022-03-03 20:25:03,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6191 to 5035. [2022-03-03 20:25:03,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5035 states, 5034 states have (on average 3.3907429479539135) internal successors, (17069), 5034 states have internal predecessors, (17069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:03,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5035 states to 5035 states and 17069 transitions. [2022-03-03 20:25:03,426 INFO L78 Accepts]: Start accepts. Automaton has 5035 states and 17069 transitions. Word has length 39 [2022-03-03 20:25:03,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:25:03,426 INFO L470 AbstractCegarLoop]: Abstraction has 5035 states and 17069 transitions. [2022-03-03 20:25:03,427 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:03,427 INFO L276 IsEmpty]: Start isEmpty. Operand 5035 states and 17069 transitions. [2022-03-03 20:25:03,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:25:03,433 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:25:03,433 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:25:03,433 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable283 [2022-03-03 20:25:03,433 INFO L402 AbstractCegarLoop]: === Iteration 285 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:25:03,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:25:03,433 INFO L85 PathProgramCache]: Analyzing trace with hash 840711860, now seen corresponding path program 285 times [2022-03-03 20:25:03,433 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:25:03,433 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974091092] [2022-03-03 20:25:03,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:25:03,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:25:03,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:25:03,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:25:03,575 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:25:03,575 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974091092] [2022-03-03 20:25:03,575 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974091092] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:25:03,575 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:25:03,575 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:25:03,575 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655650412] [2022-03-03 20:25:03,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:25:03,575 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:25:03,575 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:25:03,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:25:03,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:25:03,575 INFO L87 Difference]: Start difference. First operand 5035 states and 17069 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:04,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:25:04,696 INFO L93 Difference]: Finished difference Result 6306 states and 21210 transitions. [2022-03-03 20:25:04,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-03-03 20:25:04,697 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:25:04,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:25:04,707 INFO L225 Difference]: With dead ends: 6306 [2022-03-03 20:25:04,707 INFO L226 Difference]: Without dead ends: 6215 [2022-03-03 20:25:04,708 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1084 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=366, Invalid=3794, Unknown=0, NotChecked=0, Total=4160 [2022-03-03 20:25:04,708 INFO L933 BasicCegarLoop]: 138 mSDtfsCounter, 336 mSDsluCounter, 1716 mSDsCounter, 0 mSdLazyCounter, 2405 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 336 SdHoareTripleChecker+Valid, 1378 SdHoareTripleChecker+Invalid, 2472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 2405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:25:04,708 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [336 Valid, 1378 Invalid, 2472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 2405 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:25:04,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6215 states. [2022-03-03 20:25:04,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6215 to 5011. [2022-03-03 20:25:04,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5011 states, 5010 states have (on average 3.396007984031936) internal successors, (17014), 5010 states have internal predecessors, (17014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:04,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5011 states to 5011 states and 17014 transitions. [2022-03-03 20:25:04,774 INFO L78 Accepts]: Start accepts. Automaton has 5011 states and 17014 transitions. Word has length 39 [2022-03-03 20:25:04,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:25:04,774 INFO L470 AbstractCegarLoop]: Abstraction has 5011 states and 17014 transitions. [2022-03-03 20:25:04,774 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:04,774 INFO L276 IsEmpty]: Start isEmpty. Operand 5011 states and 17014 transitions. [2022-03-03 20:25:04,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:25:04,780 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:25:04,780 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:25:04,780 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable284 [2022-03-03 20:25:04,781 INFO L402 AbstractCegarLoop]: === Iteration 286 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:25:04,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:25:04,781 INFO L85 PathProgramCache]: Analyzing trace with hash -1138992522, now seen corresponding path program 286 times [2022-03-03 20:25:04,781 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:25:04,781 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502515277] [2022-03-03 20:25:04,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:25:04,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:25:04,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:25:04,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:25:04,920 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:25:04,920 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502515277] [2022-03-03 20:25:04,920 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502515277] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:25:04,920 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:25:04,920 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:25:04,920 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006080392] [2022-03-03 20:25:04,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:25:04,920 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:25:04,920 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:25:04,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:25:04,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:25:04,920 INFO L87 Difference]: Start difference. First operand 5011 states and 17014 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:06,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:25:06,910 INFO L93 Difference]: Finished difference Result 9529 states and 31445 transitions. [2022-03-03 20:25:06,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2022-03-03 20:25:06,910 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:25:06,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:25:06,927 INFO L225 Difference]: With dead ends: 9529 [2022-03-03 20:25:06,927 INFO L226 Difference]: Without dead ends: 9245 [2022-03-03 20:25:06,929 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2875 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=687, Invalid=8243, Unknown=0, NotChecked=0, Total=8930 [2022-03-03 20:25:06,929 INFO L933 BasicCegarLoop]: 268 mSDtfsCounter, 544 mSDsluCounter, 3407 mSDsCounter, 0 mSdLazyCounter, 4113 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 544 SdHoareTripleChecker+Valid, 3006 SdHoareTripleChecker+Invalid, 4244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 4113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-03 20:25:06,929 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [544 Valid, 3006 Invalid, 4244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 4113 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-03 20:25:06,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9245 states. [2022-03-03 20:25:07,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9245 to 5218. [2022-03-03 20:25:07,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5218 states, 5217 states have (on average 3.39850488786659) internal successors, (17730), 5217 states have internal predecessors, (17730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:07,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5218 states to 5218 states and 17730 transitions. [2022-03-03 20:25:07,042 INFO L78 Accepts]: Start accepts. Automaton has 5218 states and 17730 transitions. Word has length 39 [2022-03-03 20:25:07,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:25:07,042 INFO L470 AbstractCegarLoop]: Abstraction has 5218 states and 17730 transitions. [2022-03-03 20:25:07,042 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:07,042 INFO L276 IsEmpty]: Start isEmpty. Operand 5218 states and 17730 transitions. [2022-03-03 20:25:07,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:25:07,049 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:25:07,049 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:25:07,049 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable285 [2022-03-03 20:25:07,049 INFO L402 AbstractCegarLoop]: === Iteration 287 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:25:07,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:25:07,050 INFO L85 PathProgramCache]: Analyzing trace with hash 33659700, now seen corresponding path program 287 times [2022-03-03 20:25:07,050 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:25:07,050 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891228634] [2022-03-03 20:25:07,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:25:07,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:25:07,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:25:07,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:25:07,190 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:25:07,190 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891228634] [2022-03-03 20:25:07,190 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891228634] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:25:07,190 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:25:07,190 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:25:07,190 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138530436] [2022-03-03 20:25:07,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:25:07,190 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:25:07,190 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:25:07,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:25:07,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:25:07,191 INFO L87 Difference]: Start difference. First operand 5218 states and 17730 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:09,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:25:09,099 INFO L93 Difference]: Finished difference Result 9655 states and 31861 transitions. [2022-03-03 20:25:09,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2022-03-03 20:25:09,099 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:25:09,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:25:09,117 INFO L225 Difference]: With dead ends: 9655 [2022-03-03 20:25:09,117 INFO L226 Difference]: Without dead ends: 9493 [2022-03-03 20:25:09,118 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2733 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=669, Invalid=7887, Unknown=0, NotChecked=0, Total=8556 [2022-03-03 20:25:09,119 INFO L933 BasicCegarLoop]: 254 mSDtfsCounter, 556 mSDsluCounter, 3090 mSDsCounter, 0 mSdLazyCounter, 3815 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 556 SdHoareTripleChecker+Valid, 2803 SdHoareTripleChecker+Invalid, 3947 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 3815 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-03 20:25:09,119 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [556 Valid, 2803 Invalid, 3947 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 3815 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-03 20:25:09,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9493 states. [2022-03-03 20:25:09,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9493 to 5231. [2022-03-03 20:25:09,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5231 states, 5230 states have (on average 3.397131931166348) internal successors, (17767), 5230 states have internal predecessors, (17767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:09,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5231 states to 5231 states and 17767 transitions. [2022-03-03 20:25:09,248 INFO L78 Accepts]: Start accepts. Automaton has 5231 states and 17767 transitions. Word has length 39 [2022-03-03 20:25:09,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:25:09,248 INFO L470 AbstractCegarLoop]: Abstraction has 5231 states and 17767 transitions. [2022-03-03 20:25:09,248 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:09,248 INFO L276 IsEmpty]: Start isEmpty. Operand 5231 states and 17767 transitions. [2022-03-03 20:25:09,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:25:09,254 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:25:09,255 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:25:09,255 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable286 [2022-03-03 20:25:09,255 INFO L402 AbstractCegarLoop]: === Iteration 288 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:25:09,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:25:09,255 INFO L85 PathProgramCache]: Analyzing trace with hash -34085180, now seen corresponding path program 288 times [2022-03-03 20:25:09,255 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:25:09,255 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22659528] [2022-03-03 20:25:09,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:25:09,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:25:09,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:25:09,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:25:09,400 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:25:09,401 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22659528] [2022-03-03 20:25:09,401 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22659528] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:25:09,401 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:25:09,401 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:25:09,401 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204412812] [2022-03-03 20:25:09,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:25:09,401 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:25:09,401 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:25:09,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:25:09,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:25:09,401 INFO L87 Difference]: Start difference. First operand 5231 states and 17767 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:11,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:25:11,828 INFO L93 Difference]: Finished difference Result 9373 states and 31060 transitions. [2022-03-03 20:25:11,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2022-03-03 20:25:11,828 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:25:11,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:25:11,846 INFO L225 Difference]: With dead ends: 9373 [2022-03-03 20:25:11,846 INFO L226 Difference]: Without dead ends: 9222 [2022-03-03 20:25:11,847 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2733 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=650, Invalid=7906, Unknown=0, NotChecked=0, Total=8556 [2022-03-03 20:25:11,847 INFO L933 BasicCegarLoop]: 262 mSDtfsCounter, 535 mSDsluCounter, 3261 mSDsCounter, 0 mSdLazyCounter, 3969 mSolverCounterSat, 125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 535 SdHoareTripleChecker+Valid, 2919 SdHoareTripleChecker+Invalid, 4094 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 3969 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-03-03 20:25:11,847 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [535 Valid, 2919 Invalid, 4094 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 3969 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-03-03 20:25:11,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9222 states. [2022-03-03 20:25:11,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9222 to 5208. [2022-03-03 20:25:11,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5208 states, 5207 states have (on average 3.396773574034953) internal successors, (17687), 5207 states have internal predecessors, (17687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:11,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5208 states to 5208 states and 17687 transitions. [2022-03-03 20:25:11,938 INFO L78 Accepts]: Start accepts. Automaton has 5208 states and 17687 transitions. Word has length 39 [2022-03-03 20:25:11,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:25:11,938 INFO L470 AbstractCegarLoop]: Abstraction has 5208 states and 17687 transitions. [2022-03-03 20:25:11,939 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:11,939 INFO L276 IsEmpty]: Start isEmpty. Operand 5208 states and 17687 transitions. [2022-03-03 20:25:11,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:25:11,945 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:25:11,945 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:25:11,945 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable287 [2022-03-03 20:25:11,945 INFO L402 AbstractCegarLoop]: === Iteration 289 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:25:11,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:25:11,946 INFO L85 PathProgramCache]: Analyzing trace with hash -1961726938, now seen corresponding path program 289 times [2022-03-03 20:25:11,946 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:25:11,946 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945359244] [2022-03-03 20:25:11,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:25:11,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:25:11,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:25:12,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:25:12,105 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:25:12,105 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945359244] [2022-03-03 20:25:12,105 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945359244] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:25:12,105 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:25:12,105 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:25:12,105 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334787044] [2022-03-03 20:25:12,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:25:12,105 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:25:12,105 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:25:12,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:25:12,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:25:12,132 INFO L87 Difference]: Start difference. First operand 5208 states and 17687 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:14,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:25:14,126 INFO L93 Difference]: Finished difference Result 9549 states and 31606 transitions. [2022-03-03 20:25:14,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2022-03-03 20:25:14,126 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:25:14,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:25:14,146 INFO L225 Difference]: With dead ends: 9549 [2022-03-03 20:25:14,147 INFO L226 Difference]: Without dead ends: 9409 [2022-03-03 20:25:14,148 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2595 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=633, Invalid=7557, Unknown=0, NotChecked=0, Total=8190 [2022-03-03 20:25:14,148 INFO L933 BasicCegarLoop]: 256 mSDtfsCounter, 545 mSDsluCounter, 3074 mSDsCounter, 0 mSdLazyCounter, 3807 mSolverCounterSat, 129 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 545 SdHoareTripleChecker+Valid, 2788 SdHoareTripleChecker+Invalid, 3936 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 129 IncrementalHoareTripleChecker+Valid, 3807 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-03 20:25:14,148 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [545 Valid, 2788 Invalid, 3936 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [129 Valid, 3807 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-03 20:25:14,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9409 states. [2022-03-03 20:25:14,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9409 to 5159. [2022-03-03 20:25:14,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5159 states, 5158 states have (on average 3.3970531213648703) internal successors, (17522), 5158 states have internal predecessors, (17522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:14,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5159 states to 5159 states and 17522 transitions. [2022-03-03 20:25:14,239 INFO L78 Accepts]: Start accepts. Automaton has 5159 states and 17522 transitions. Word has length 39 [2022-03-03 20:25:14,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:25:14,239 INFO L470 AbstractCegarLoop]: Abstraction has 5159 states and 17522 transitions. [2022-03-03 20:25:14,239 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:14,239 INFO L276 IsEmpty]: Start isEmpty. Operand 5159 states and 17522 transitions. [2022-03-03 20:25:14,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:25:14,245 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:25:14,245 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:25:14,245 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable288 [2022-03-03 20:25:14,245 INFO L402 AbstractCegarLoop]: === Iteration 290 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:25:14,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:25:14,246 INFO L85 PathProgramCache]: Analyzing trace with hash -957970022, now seen corresponding path program 290 times [2022-03-03 20:25:14,246 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:25:14,246 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701580391] [2022-03-03 20:25:14,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:25:14,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:25:14,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:25:14,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:25:14,437 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:25:14,437 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701580391] [2022-03-03 20:25:14,437 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701580391] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:25:14,437 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:25:14,437 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:25:14,437 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574584641] [2022-03-03 20:25:14,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:25:14,438 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:25:14,438 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:25:14,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:25:14,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:25:14,438 INFO L87 Difference]: Start difference. First operand 5159 states and 17522 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:15,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:25:15,693 INFO L93 Difference]: Finished difference Result 5660 states and 19032 transitions. [2022-03-03 20:25:15,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-03 20:25:15,693 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:25:15,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:25:15,703 INFO L225 Difference]: With dead ends: 5660 [2022-03-03 20:25:15,703 INFO L226 Difference]: Without dead ends: 5593 [2022-03-03 20:25:15,704 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 569 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=254, Invalid=2398, Unknown=0, NotChecked=0, Total=2652 [2022-03-03 20:25:15,704 INFO L933 BasicCegarLoop]: 122 mSDtfsCounter, 272 mSDsluCounter, 1426 mSDsCounter, 0 mSdLazyCounter, 1933 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 1238 SdHoareTripleChecker+Invalid, 1987 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 1933 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:25:15,704 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [272 Valid, 1238 Invalid, 1987 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 1933 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:25:15,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5593 states. [2022-03-03 20:25:15,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5593 to 5171. [2022-03-03 20:25:15,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5171 states, 5170 states have (on average 3.3941972920696326) internal successors, (17548), 5170 states have internal predecessors, (17548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:15,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5171 states to 5171 states and 17548 transitions. [2022-03-03 20:25:15,768 INFO L78 Accepts]: Start accepts. Automaton has 5171 states and 17548 transitions. Word has length 39 [2022-03-03 20:25:15,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:25:15,768 INFO L470 AbstractCegarLoop]: Abstraction has 5171 states and 17548 transitions. [2022-03-03 20:25:15,768 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:15,768 INFO L276 IsEmpty]: Start isEmpty. Operand 5171 states and 17548 transitions. [2022-03-03 20:25:15,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:25:15,774 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:25:15,774 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:25:15,774 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable289 [2022-03-03 20:25:15,774 INFO L402 AbstractCegarLoop]: === Iteration 291 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:25:15,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:25:15,774 INFO L85 PathProgramCache]: Analyzing trace with hash -1088564870, now seen corresponding path program 291 times [2022-03-03 20:25:15,775 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:25:15,775 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755817435] [2022-03-03 20:25:15,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:25:15,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:25:15,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:25:15,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:25:15,998 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:25:15,998 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755817435] [2022-03-03 20:25:15,998 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755817435] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:25:15,998 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:25:15,998 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:25:15,998 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748213405] [2022-03-03 20:25:15,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:25:15,998 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:25:15,998 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:25:15,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:25:15,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:25:15,999 INFO L87 Difference]: Start difference. First operand 5171 states and 17548 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:17,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:25:17,164 INFO L93 Difference]: Finished difference Result 5592 states and 18836 transitions. [2022-03-03 20:25:17,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-03 20:25:17,165 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:25:17,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:25:17,175 INFO L225 Difference]: With dead ends: 5592 [2022-03-03 20:25:17,175 INFO L226 Difference]: Without dead ends: 5529 [2022-03-03 20:25:17,176 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 536 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=255, Invalid=2295, Unknown=0, NotChecked=0, Total=2550 [2022-03-03 20:25:17,176 INFO L933 BasicCegarLoop]: 109 mSDtfsCounter, 249 mSDsluCounter, 1317 mSDsCounter, 0 mSdLazyCounter, 1802 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 1117 SdHoareTripleChecker+Invalid, 1856 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 1802 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:25:17,176 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [249 Valid, 1117 Invalid, 1856 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 1802 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:25:17,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5529 states. [2022-03-03 20:25:17,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5529 to 5163. [2022-03-03 20:25:17,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5163 states, 5162 states have (on average 3.395583107322743) internal successors, (17528), 5162 states have internal predecessors, (17528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:17,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5163 states to 5163 states and 17528 transitions. [2022-03-03 20:25:17,240 INFO L78 Accepts]: Start accepts. Automaton has 5163 states and 17528 transitions. Word has length 39 [2022-03-03 20:25:17,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:25:17,240 INFO L470 AbstractCegarLoop]: Abstraction has 5163 states and 17528 transitions. [2022-03-03 20:25:17,240 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:17,240 INFO L276 IsEmpty]: Start isEmpty. Operand 5163 states and 17528 transitions. [2022-03-03 20:25:17,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:25:17,247 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:25:17,247 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:25:17,247 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable290 [2022-03-03 20:25:17,247 INFO L402 AbstractCegarLoop]: === Iteration 292 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:25:17,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:25:17,247 INFO L85 PathProgramCache]: Analyzing trace with hash -1224243462, now seen corresponding path program 292 times [2022-03-03 20:25:17,247 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:25:17,247 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091389472] [2022-03-03 20:25:17,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:25:17,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:25:17,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:25:17,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:25:17,471 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:25:17,471 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091389472] [2022-03-03 20:25:17,471 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091389472] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:25:17,471 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:25:17,472 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:25:17,472 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673093768] [2022-03-03 20:25:17,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:25:17,472 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:25:17,472 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:25:17,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:25:17,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:25:17,472 INFO L87 Difference]: Start difference. First operand 5163 states and 17528 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:19,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:25:19,136 INFO L93 Difference]: Finished difference Result 5838 states and 19469 transitions. [2022-03-03 20:25:19,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-03 20:25:19,136 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:25:19,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:25:19,146 INFO L225 Difference]: With dead ends: 5838 [2022-03-03 20:25:19,146 INFO L226 Difference]: Without dead ends: 5795 [2022-03-03 20:25:19,147 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1125 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=377, Invalid=3913, Unknown=0, NotChecked=0, Total=4290 [2022-03-03 20:25:19,147 INFO L933 BasicCegarLoop]: 127 mSDtfsCounter, 353 mSDsluCounter, 1577 mSDsCounter, 0 mSdLazyCounter, 2231 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 353 SdHoareTripleChecker+Valid, 1357 SdHoareTripleChecker+Invalid, 2310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 2231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-03 20:25:19,147 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [353 Valid, 1357 Invalid, 2310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 2231 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-03 20:25:19,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5795 states. [2022-03-03 20:25:19,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5795 to 5171. [2022-03-03 20:25:19,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5171 states, 5170 states have (on average 3.3941972920696326) internal successors, (17548), 5170 states have internal predecessors, (17548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:19,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5171 states to 5171 states and 17548 transitions. [2022-03-03 20:25:19,216 INFO L78 Accepts]: Start accepts. Automaton has 5171 states and 17548 transitions. Word has length 39 [2022-03-03 20:25:19,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:25:19,216 INFO L470 AbstractCegarLoop]: Abstraction has 5171 states and 17548 transitions. [2022-03-03 20:25:19,216 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:19,216 INFO L276 IsEmpty]: Start isEmpty. Operand 5171 states and 17548 transitions. [2022-03-03 20:25:19,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:25:19,223 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:25:19,223 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:25:19,223 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable291 [2022-03-03 20:25:19,223 INFO L402 AbstractCegarLoop]: === Iteration 293 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:25:19,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:25:19,223 INFO L85 PathProgramCache]: Analyzing trace with hash 1290125532, now seen corresponding path program 293 times [2022-03-03 20:25:19,223 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:25:19,223 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378319660] [2022-03-03 20:25:19,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:25:19,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:25:19,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:25:19,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:25:19,410 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:25:19,410 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378319660] [2022-03-03 20:25:19,410 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378319660] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:25:19,410 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:25:19,410 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:25:19,410 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368430021] [2022-03-03 20:25:19,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:25:19,411 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:25:19,411 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:25:19,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:25:19,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:25:19,411 INFO L87 Difference]: Start difference. First operand 5171 states and 17548 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:20,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:25:20,959 INFO L93 Difference]: Finished difference Result 5794 states and 19351 transitions. [2022-03-03 20:25:20,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-03-03 20:25:20,959 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:25:20,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:25:20,970 INFO L225 Difference]: With dead ends: 5794 [2022-03-03 20:25:20,970 INFO L226 Difference]: Without dead ends: 5742 [2022-03-03 20:25:20,971 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1076 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=367, Invalid=3793, Unknown=0, NotChecked=0, Total=4160 [2022-03-03 20:25:20,971 INFO L933 BasicCegarLoop]: 123 mSDtfsCounter, 340 mSDsluCounter, 1531 mSDsCounter, 0 mSdLazyCounter, 2155 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 340 SdHoareTripleChecker+Valid, 1320 SdHoareTripleChecker+Invalid, 2227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 2155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-03 20:25:20,971 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [340 Valid, 1320 Invalid, 2227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 2155 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-03 20:25:20,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5742 states. [2022-03-03 20:25:21,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5742 to 5163. [2022-03-03 20:25:21,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5163 states, 5162 states have (on average 3.395583107322743) internal successors, (17528), 5162 states have internal predecessors, (17528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:21,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5163 states to 5163 states and 17528 transitions. [2022-03-03 20:25:21,041 INFO L78 Accepts]: Start accepts. Automaton has 5163 states and 17528 transitions. Word has length 39 [2022-03-03 20:25:21,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:25:21,041 INFO L470 AbstractCegarLoop]: Abstraction has 5163 states and 17528 transitions. [2022-03-03 20:25:21,041 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:21,041 INFO L276 IsEmpty]: Start isEmpty. Operand 5163 states and 17528 transitions. [2022-03-03 20:25:21,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:25:21,048 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:25:21,048 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:25:21,048 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable292 [2022-03-03 20:25:21,048 INFO L402 AbstractCegarLoop]: === Iteration 294 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:25:21,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:25:21,048 INFO L85 PathProgramCache]: Analyzing trace with hash -305759892, now seen corresponding path program 294 times [2022-03-03 20:25:21,048 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:25:21,048 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490513109] [2022-03-03 20:25:21,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:25:21,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:25:21,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:25:21,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:25:21,272 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:25:21,272 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490513109] [2022-03-03 20:25:21,272 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490513109] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:25:21,272 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:25:21,272 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:25:21,272 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074232619] [2022-03-03 20:25:21,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:25:21,272 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:25:21,272 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:25:21,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:25:21,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:25:21,273 INFO L87 Difference]: Start difference. First operand 5163 states and 17528 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:22,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:25:22,552 INFO L93 Difference]: Finished difference Result 5720 states and 19110 transitions. [2022-03-03 20:25:22,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-03-03 20:25:22,553 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:25:22,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:25:22,563 INFO L225 Difference]: With dead ends: 5720 [2022-03-03 20:25:22,563 INFO L226 Difference]: Without dead ends: 5665 [2022-03-03 20:25:22,563 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 632 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=289, Invalid=2573, Unknown=0, NotChecked=0, Total=2862 [2022-03-03 20:25:22,563 INFO L933 BasicCegarLoop]: 108 mSDtfsCounter, 276 mSDsluCounter, 1370 mSDsCounter, 0 mSdLazyCounter, 1852 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 1133 SdHoareTripleChecker+Invalid, 1911 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 1852 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-03 20:25:22,563 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [276 Valid, 1133 Invalid, 1911 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 1852 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-03 20:25:22,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5665 states. [2022-03-03 20:25:22,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5665 to 5165. [2022-03-03 20:25:22,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5165 states, 5164 states have (on average 3.3948489542989932) internal successors, (17531), 5164 states have internal predecessors, (17531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:22,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5165 states to 5165 states and 17531 transitions. [2022-03-03 20:25:22,630 INFO L78 Accepts]: Start accepts. Automaton has 5165 states and 17531 transitions. Word has length 39 [2022-03-03 20:25:22,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:25:22,630 INFO L470 AbstractCegarLoop]: Abstraction has 5165 states and 17531 transitions. [2022-03-03 20:25:22,630 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:22,630 INFO L276 IsEmpty]: Start isEmpty. Operand 5165 states and 17531 transitions. [2022-03-03 20:25:22,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:25:22,637 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:25:22,637 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:25:22,637 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable293 [2022-03-03 20:25:22,637 INFO L402 AbstractCegarLoop]: === Iteration 295 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:25:22,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:25:22,637 INFO L85 PathProgramCache]: Analyzing trace with hash 866892330, now seen corresponding path program 295 times [2022-03-03 20:25:22,637 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:25:22,637 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323477793] [2022-03-03 20:25:22,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:25:22,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:25:22,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:25:22,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:25:22,852 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:25:22,852 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323477793] [2022-03-03 20:25:22,852 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323477793] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:25:22,852 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:25:22,852 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:25:22,852 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927034592] [2022-03-03 20:25:22,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:25:22,852 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:25:22,852 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:25:22,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:25:22,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:25:22,853 INFO L87 Difference]: Start difference. First operand 5165 states and 17531 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:23,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:25:23,908 INFO L93 Difference]: Finished difference Result 5655 states and 18958 transitions. [2022-03-03 20:25:23,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-03 20:25:23,908 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:25:23,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:25:23,919 INFO L225 Difference]: With dead ends: 5655 [2022-03-03 20:25:23,920 INFO L226 Difference]: Without dead ends: 5609 [2022-03-03 20:25:23,920 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 529 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=260, Invalid=2290, Unknown=0, NotChecked=0, Total=2550 [2022-03-03 20:25:23,920 INFO L933 BasicCegarLoop]: 106 mSDtfsCounter, 265 mSDsluCounter, 1372 mSDsCounter, 0 mSdLazyCounter, 1817 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 1133 SdHoareTripleChecker+Invalid, 1864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 1817 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:25:23,920 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [265 Valid, 1133 Invalid, 1864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 1817 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:25:23,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5609 states. [2022-03-03 20:25:23,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5609 to 5169. [2022-03-03 20:25:23,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5169 states, 5168 states have (on average 3.393769349845201) internal successors, (17539), 5168 states have internal predecessors, (17539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:23,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5169 states to 5169 states and 17539 transitions. [2022-03-03 20:25:23,992 INFO L78 Accepts]: Start accepts. Automaton has 5169 states and 17539 transitions. Word has length 39 [2022-03-03 20:25:23,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:25:23,992 INFO L470 AbstractCegarLoop]: Abstraction has 5169 states and 17539 transitions. [2022-03-03 20:25:23,992 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:23,992 INFO L276 IsEmpty]: Start isEmpty. Operand 5169 states and 17539 transitions. [2022-03-03 20:25:23,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:25:23,999 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:25:23,999 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:25:23,999 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable294 [2022-03-03 20:25:23,999 INFO L402 AbstractCegarLoop]: === Iteration 296 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:25:23,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:25:23,999 INFO L85 PathProgramCache]: Analyzing trace with hash 619426168, now seen corresponding path program 296 times [2022-03-03 20:25:23,999 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:25:23,999 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757405034] [2022-03-03 20:25:23,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:25:23,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:25:24,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:25:24,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:25:24,219 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:25:24,219 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757405034] [2022-03-03 20:25:24,219 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757405034] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:25:24,219 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:25:24,219 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:25:24,219 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848576751] [2022-03-03 20:25:24,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:25:24,219 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:25:24,219 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:25:24,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:25:24,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:25:24,220 INFO L87 Difference]: Start difference. First operand 5169 states and 17539 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:25,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:25:25,270 INFO L93 Difference]: Finished difference Result 5619 states and 18879 transitions. [2022-03-03 20:25:25,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-03 20:25:25,270 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:25:25,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:25:25,281 INFO L225 Difference]: With dead ends: 5619 [2022-03-03 20:25:25,281 INFO L226 Difference]: Without dead ends: 5570 [2022-03-03 20:25:25,281 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 560 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=273, Invalid=2379, Unknown=0, NotChecked=0, Total=2652 [2022-03-03 20:25:25,281 INFO L933 BasicCegarLoop]: 107 mSDtfsCounter, 265 mSDsluCounter, 1345 mSDsCounter, 0 mSdLazyCounter, 1787 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 1141 SdHoareTripleChecker+Invalid, 1838 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 1787 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:25:25,281 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [265 Valid, 1141 Invalid, 1838 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 1787 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:25:25,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5570 states. [2022-03-03 20:25:25,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5570 to 5159. [2022-03-03 20:25:25,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5159 states, 5158 states have (on average 3.3962776269872044) internal successors, (17518), 5158 states have internal predecessors, (17518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:25,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5159 states to 5159 states and 17518 transitions. [2022-03-03 20:25:25,357 INFO L78 Accepts]: Start accepts. Automaton has 5159 states and 17518 transitions. Word has length 39 [2022-03-03 20:25:25,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:25:25,357 INFO L470 AbstractCegarLoop]: Abstraction has 5159 states and 17518 transitions. [2022-03-03 20:25:25,357 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:25,357 INFO L276 IsEmpty]: Start isEmpty. Operand 5159 states and 17518 transitions. [2022-03-03 20:25:25,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:25:25,364 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:25:25,364 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:25:25,364 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable295 [2022-03-03 20:25:25,365 INFO L402 AbstractCegarLoop]: === Iteration 297 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:25:25,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:25:25,365 INFO L85 PathProgramCache]: Analyzing trace with hash -2136665606, now seen corresponding path program 297 times [2022-03-03 20:25:25,365 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:25:25,365 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682789105] [2022-03-03 20:25:25,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:25:25,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:25:25,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:25:25,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:25:25,518 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:25:25,518 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682789105] [2022-03-03 20:25:25,518 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682789105] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:25:25,518 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:25:25,518 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:25:25,518 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452005555] [2022-03-03 20:25:25,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:25:25,518 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:25:25,518 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:25:25,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:25:25,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:25:25,519 INFO L87 Difference]: Start difference. First operand 5159 states and 17518 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:26,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:25:26,502 INFO L93 Difference]: Finished difference Result 5632 states and 18972 transitions. [2022-03-03 20:25:26,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-03-03 20:25:26,502 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:25:26,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:25:26,512 INFO L225 Difference]: With dead ends: 5632 [2022-03-03 20:25:26,512 INFO L226 Difference]: Without dead ends: 5565 [2022-03-03 20:25:26,512 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 477 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=218, Invalid=2134, Unknown=0, NotChecked=0, Total=2352 [2022-03-03 20:25:26,513 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 268 mSDsluCounter, 1442 mSDsCounter, 0 mSdLazyCounter, 2010 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 1274 SdHoareTripleChecker+Invalid, 2057 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 2010 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:25:26,513 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [268 Valid, 1274 Invalid, 2057 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 2010 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:25:26,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5565 states. [2022-03-03 20:25:26,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5565 to 5215. [2022-03-03 20:25:26,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5215 states, 5214 states have (on average 3.3908707326428846) internal successors, (17680), 5214 states have internal predecessors, (17680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:26,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5215 states to 5215 states and 17680 transitions. [2022-03-03 20:25:26,578 INFO L78 Accepts]: Start accepts. Automaton has 5215 states and 17680 transitions. Word has length 39 [2022-03-03 20:25:26,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:25:26,578 INFO L470 AbstractCegarLoop]: Abstraction has 5215 states and 17680 transitions. [2022-03-03 20:25:26,578 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:26,578 INFO L276 IsEmpty]: Start isEmpty. Operand 5215 states and 17680 transitions. [2022-03-03 20:25:26,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:25:26,584 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:25:26,584 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:25:26,584 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable296 [2022-03-03 20:25:26,584 INFO L402 AbstractCegarLoop]: === Iteration 298 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:25:26,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:25:26,585 INFO L85 PathProgramCache]: Analyzing trace with hash 2027706842, now seen corresponding path program 298 times [2022-03-03 20:25:26,585 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:25:26,585 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436694297] [2022-03-03 20:25:26,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:25:26,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:25:26,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:25:26,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:25:26,800 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:25:26,800 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436694297] [2022-03-03 20:25:26,800 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436694297] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:25:26,800 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:25:26,800 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:25:26,800 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417300870] [2022-03-03 20:25:26,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:25:26,800 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:25:26,800 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:25:26,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:25:26,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:25:26,800 INFO L87 Difference]: Start difference. First operand 5215 states and 17680 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:27,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:25:27,917 INFO L93 Difference]: Finished difference Result 5628 states and 18956 transitions. [2022-03-03 20:25:27,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-03 20:25:27,917 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:25:27,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:25:27,927 INFO L225 Difference]: With dead ends: 5628 [2022-03-03 20:25:27,927 INFO L226 Difference]: Without dead ends: 5565 [2022-03-03 20:25:27,928 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 444 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=222, Invalid=2034, Unknown=0, NotChecked=0, Total=2256 [2022-03-03 20:25:27,928 INFO L933 BasicCegarLoop]: 116 mSDtfsCounter, 250 mSDsluCounter, 1300 mSDsCounter, 0 mSdLazyCounter, 1865 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 1133 SdHoareTripleChecker+Invalid, 1913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 1865 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:25:27,928 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [250 Valid, 1133 Invalid, 1913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 1865 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:25:27,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5565 states. [2022-03-03 20:25:27,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5565 to 5247. [2022-03-03 20:25:27,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5247 states, 5246 states have (on average 3.3861990087685854) internal successors, (17764), 5246 states have internal predecessors, (17764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:27,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5247 states to 5247 states and 17764 transitions. [2022-03-03 20:25:27,993 INFO L78 Accepts]: Start accepts. Automaton has 5247 states and 17764 transitions. Word has length 39 [2022-03-03 20:25:27,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:25:27,993 INFO L470 AbstractCegarLoop]: Abstraction has 5247 states and 17764 transitions. [2022-03-03 20:25:27,993 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:27,993 INFO L276 IsEmpty]: Start isEmpty. Operand 5247 states and 17764 transitions. [2022-03-03 20:25:28,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:25:28,000 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:25:28,000 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:25:28,000 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable297 [2022-03-03 20:25:28,000 INFO L402 AbstractCegarLoop]: === Iteration 299 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:25:28,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:25:28,000 INFO L85 PathProgramCache]: Analyzing trace with hash 1497806394, now seen corresponding path program 299 times [2022-03-03 20:25:28,000 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:25:28,000 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297995802] [2022-03-03 20:25:28,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:25:28,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:25:28,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:25:28,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:25:28,231 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:25:28,231 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297995802] [2022-03-03 20:25:28,231 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297995802] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:25:28,231 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:25:28,231 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:25:28,231 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20664631] [2022-03-03 20:25:28,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:25:28,231 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:25:28,231 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:25:28,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:25:28,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:25:28,231 INFO L87 Difference]: Start difference. First operand 5247 states and 17764 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:29,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:25:29,342 INFO L93 Difference]: Finished difference Result 5652 states and 19016 transitions. [2022-03-03 20:25:29,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-03 20:25:29,343 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:25:29,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:25:29,353 INFO L225 Difference]: With dead ends: 5652 [2022-03-03 20:25:29,353 INFO L226 Difference]: Without dead ends: 5529 [2022-03-03 20:25:29,354 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 472 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=230, Invalid=2122, Unknown=0, NotChecked=0, Total=2352 [2022-03-03 20:25:29,354 INFO L933 BasicCegarLoop]: 121 mSDtfsCounter, 247 mSDsluCounter, 1359 mSDsCounter, 0 mSdLazyCounter, 1887 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 1198 SdHoareTripleChecker+Invalid, 1932 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1887 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:25:29,354 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [247 Valid, 1198 Invalid, 1932 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 1887 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:25:29,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5529 states. [2022-03-03 20:25:29,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5529 to 5199. [2022-03-03 20:25:29,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5199 states, 5198 states have (on average 3.391689111196614) internal successors, (17630), 5198 states have internal predecessors, (17630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:29,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5199 states to 5199 states and 17630 transitions. [2022-03-03 20:25:29,421 INFO L78 Accepts]: Start accepts. Automaton has 5199 states and 17630 transitions. Word has length 39 [2022-03-03 20:25:29,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:25:29,421 INFO L470 AbstractCegarLoop]: Abstraction has 5199 states and 17630 transitions. [2022-03-03 20:25:29,421 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:29,421 INFO L276 IsEmpty]: Start isEmpty. Operand 5199 states and 17630 transitions. [2022-03-03 20:25:29,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:25:29,427 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:25:29,427 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:25:29,427 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable298 [2022-03-03 20:25:29,428 INFO L402 AbstractCegarLoop]: === Iteration 300 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:25:29,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:25:29,428 INFO L85 PathProgramCache]: Analyzing trace with hash 779395224, now seen corresponding path program 300 times [2022-03-03 20:25:29,428 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:25:29,428 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159882726] [2022-03-03 20:25:29,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:25:29,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:25:29,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:25:29,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:25:29,628 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:25:29,628 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159882726] [2022-03-03 20:25:29,628 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159882726] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:25:29,628 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:25:29,628 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:25:29,628 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83614351] [2022-03-03 20:25:29,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:25:29,629 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:25:29,629 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:25:29,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:25:29,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:25:29,629 INFO L87 Difference]: Start difference. First operand 5199 states and 17630 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:31,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:25:31,721 INFO L93 Difference]: Finished difference Result 8272 states and 27771 transitions. [2022-03-03 20:25:31,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-03-03 20:25:31,721 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:25:31,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:25:31,737 INFO L225 Difference]: With dead ends: 8272 [2022-03-03 20:25:31,737 INFO L226 Difference]: Without dead ends: 8166 [2022-03-03 20:25:31,738 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1653 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=466, Invalid=5234, Unknown=0, NotChecked=0, Total=5700 [2022-03-03 20:25:31,738 INFO L933 BasicCegarLoop]: 202 mSDtfsCounter, 542 mSDsluCounter, 2327 mSDsCounter, 0 mSdLazyCounter, 2906 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 542 SdHoareTripleChecker+Valid, 2206 SdHoareTripleChecker+Invalid, 3025 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 2906 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-03 20:25:31,738 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [542 Valid, 2206 Invalid, 3025 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 2906 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-03 20:25:31,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8166 states. [2022-03-03 20:25:31,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8166 to 5264. [2022-03-03 20:25:31,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5264 states, 5263 states have (on average 3.3878016340490213) internal successors, (17830), 5263 states have internal predecessors, (17830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:31,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5264 states to 5264 states and 17830 transitions. [2022-03-03 20:25:31,825 INFO L78 Accepts]: Start accepts. Automaton has 5264 states and 17830 transitions. Word has length 39 [2022-03-03 20:25:31,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:25:31,825 INFO L470 AbstractCegarLoop]: Abstraction has 5264 states and 17830 transitions. [2022-03-03 20:25:31,825 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:31,825 INFO L276 IsEmpty]: Start isEmpty. Operand 5264 states and 17830 transitions. [2022-03-03 20:25:31,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:25:31,832 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:25:31,832 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:25:31,832 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable299 [2022-03-03 20:25:31,832 INFO L402 AbstractCegarLoop]: === Iteration 301 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:25:31,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:25:31,833 INFO L85 PathProgramCache]: Analyzing trace with hash -1001203078, now seen corresponding path program 301 times [2022-03-03 20:25:31,833 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:25:31,833 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573796743] [2022-03-03 20:25:31,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:25:31,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:25:31,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:25:32,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:25:32,053 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:25:32,053 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573796743] [2022-03-03 20:25:32,053 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573796743] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:25:32,053 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:25:32,053 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:25:32,053 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318690347] [2022-03-03 20:25:32,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:25:32,053 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:25:32,053 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:25:32,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:25:32,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:25:32,054 INFO L87 Difference]: Start difference. First operand 5264 states and 17830 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:33,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:25:33,765 INFO L93 Difference]: Finished difference Result 9058 states and 30537 transitions. [2022-03-03 20:25:33,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2022-03-03 20:25:33,765 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:25:33,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:25:33,781 INFO L225 Difference]: With dead ends: 9058 [2022-03-03 20:25:33,781 INFO L226 Difference]: Without dead ends: 9006 [2022-03-03 20:25:33,782 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2140 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=521, Invalid=6451, Unknown=0, NotChecked=0, Total=6972 [2022-03-03 20:25:33,782 INFO L933 BasicCegarLoop]: 240 mSDtfsCounter, 572 mSDsluCounter, 2676 mSDsCounter, 0 mSdLazyCounter, 3296 mSolverCounterSat, 125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 572 SdHoareTripleChecker+Valid, 2598 SdHoareTripleChecker+Invalid, 3421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 3296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 20:25:33,782 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [572 Valid, 2598 Invalid, 3421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 3296 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 20:25:33,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9006 states. [2022-03-03 20:25:33,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9006 to 5234. [2022-03-03 20:25:33,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5234 states, 5233 states have (on average 3.3890693674756354) internal successors, (17735), 5233 states have internal predecessors, (17735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:33,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5234 states to 5234 states and 17735 transitions. [2022-03-03 20:25:33,865 INFO L78 Accepts]: Start accepts. Automaton has 5234 states and 17735 transitions. Word has length 39 [2022-03-03 20:25:33,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:25:33,865 INFO L470 AbstractCegarLoop]: Abstraction has 5234 states and 17735 transitions. [2022-03-03 20:25:33,865 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:33,865 INFO L276 IsEmpty]: Start isEmpty. Operand 5234 states and 17735 transitions. [2022-03-03 20:25:33,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:25:33,871 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:25:33,871 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:25:33,871 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable300 [2022-03-03 20:25:33,872 INFO L402 AbstractCegarLoop]: === Iteration 302 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:25:33,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:25:33,872 INFO L85 PathProgramCache]: Analyzing trace with hash 1697878794, now seen corresponding path program 302 times [2022-03-03 20:25:33,872 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:25:33,872 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059977083] [2022-03-03 20:25:33,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:25:33,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:25:33,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:25:34,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:25:34,019 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:25:34,019 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059977083] [2022-03-03 20:25:34,019 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059977083] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:25:34,019 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:25:34,019 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:25:34,019 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705827610] [2022-03-03 20:25:34,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:25:34,019 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:25:34,019 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:25:34,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:25:34,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:25:34,019 INFO L87 Difference]: Start difference. First operand 5234 states and 17735 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:35,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:25:35,381 INFO L93 Difference]: Finished difference Result 7577 states and 25347 transitions. [2022-03-03 20:25:35,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-03-03 20:25:35,381 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:25:35,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:25:35,395 INFO L225 Difference]: With dead ends: 7577 [2022-03-03 20:25:35,395 INFO L226 Difference]: Without dead ends: 7522 [2022-03-03 20:25:35,396 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 785 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=319, Invalid=2987, Unknown=0, NotChecked=0, Total=3306 [2022-03-03 20:25:35,396 INFO L933 BasicCegarLoop]: 175 mSDtfsCounter, 409 mSDsluCounter, 2003 mSDsCounter, 0 mSdLazyCounter, 2420 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 409 SdHoareTripleChecker+Valid, 1862 SdHoareTripleChecker+Invalid, 2486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 2420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-03 20:25:35,396 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [409 Valid, 1862 Invalid, 2486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 2420 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-03 20:25:35,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7522 states. [2022-03-03 20:25:35,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7522 to 5268. [2022-03-03 20:25:35,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5268 states, 5267 states have (on average 3.3892158724131383) internal successors, (17851), 5267 states have internal predecessors, (17851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:35,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5268 states to 5268 states and 17851 transitions. [2022-03-03 20:25:35,479 INFO L78 Accepts]: Start accepts. Automaton has 5268 states and 17851 transitions. Word has length 39 [2022-03-03 20:25:35,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:25:35,479 INFO L470 AbstractCegarLoop]: Abstraction has 5268 states and 17851 transitions. [2022-03-03 20:25:35,479 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:35,479 INFO L276 IsEmpty]: Start isEmpty. Operand 5268 states and 17851 transitions. [2022-03-03 20:25:35,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:25:35,486 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:25:35,486 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:25:35,486 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable301 [2022-03-03 20:25:35,486 INFO L402 AbstractCegarLoop]: === Iteration 303 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:25:35,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:25:35,486 INFO L85 PathProgramCache]: Analyzing trace with hash -1424436280, now seen corresponding path program 303 times [2022-03-03 20:25:35,486 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:25:35,487 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73299154] [2022-03-03 20:25:35,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:25:35,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:25:35,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:25:35,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:25:35,639 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:25:35,639 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73299154] [2022-03-03 20:25:35,639 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73299154] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:25:35,639 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:25:35,639 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:25:35,639 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291620872] [2022-03-03 20:25:35,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:25:35,639 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:25:35,639 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:25:35,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:25:35,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:25:35,640 INFO L87 Difference]: Start difference. First operand 5268 states and 17851 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:36,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:25:36,919 INFO L93 Difference]: Finished difference Result 8290 states and 27819 transitions. [2022-03-03 20:25:36,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-03-03 20:25:36,919 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:25:36,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:25:36,935 INFO L225 Difference]: With dead ends: 8290 [2022-03-03 20:25:36,935 INFO L226 Difference]: Without dead ends: 8230 [2022-03-03 20:25:36,936 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1043 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=353, Invalid=3679, Unknown=0, NotChecked=0, Total=4032 [2022-03-03 20:25:36,936 INFO L933 BasicCegarLoop]: 215 mSDtfsCounter, 438 mSDsluCounter, 2401 mSDsCounter, 0 mSdLazyCounter, 2828 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 438 SdHoareTripleChecker+Valid, 2304 SdHoareTripleChecker+Invalid, 2897 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 2828 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-03 20:25:36,936 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [438 Valid, 2304 Invalid, 2897 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 2828 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-03 20:25:36,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8230 states. [2022-03-03 20:25:37,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8230 to 5266. [2022-03-03 20:25:37,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5266 states, 5265 states have (on average 3.389553656220323) internal successors, (17846), 5265 states have internal predecessors, (17846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:37,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5266 states to 5266 states and 17846 transitions. [2022-03-03 20:25:37,021 INFO L78 Accepts]: Start accepts. Automaton has 5266 states and 17846 transitions. Word has length 39 [2022-03-03 20:25:37,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:25:37,021 INFO L470 AbstractCegarLoop]: Abstraction has 5266 states and 17846 transitions. [2022-03-03 20:25:37,021 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:37,021 INFO L276 IsEmpty]: Start isEmpty. Operand 5266 states and 17846 transitions. [2022-03-03 20:25:37,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:25:37,028 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:25:37,028 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:25:37,028 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable302 [2022-03-03 20:25:37,028 INFO L402 AbstractCegarLoop]: === Iteration 304 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:25:37,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:25:37,028 INFO L85 PathProgramCache]: Analyzing trace with hash 993127414, now seen corresponding path program 304 times [2022-03-03 20:25:37,028 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:25:37,028 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031087413] [2022-03-03 20:25:37,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:25:37,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:25:37,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:25:37,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:25:37,177 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:25:37,177 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031087413] [2022-03-03 20:25:37,177 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031087413] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:25:37,177 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:25:37,177 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:25:37,178 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907033721] [2022-03-03 20:25:37,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:25:37,178 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:25:37,178 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:25:37,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:25:37,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:25:37,178 INFO L87 Difference]: Start difference. First operand 5266 states and 17846 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:38,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:25:38,651 INFO L93 Difference]: Finished difference Result 7546 states and 25301 transitions. [2022-03-03 20:25:38,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-03-03 20:25:38,652 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:25:38,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:25:38,666 INFO L225 Difference]: With dead ends: 7546 [2022-03-03 20:25:38,666 INFO L226 Difference]: Without dead ends: 7455 [2022-03-03 20:25:38,666 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 748 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=300, Invalid=2892, Unknown=0, NotChecked=0, Total=3192 [2022-03-03 20:25:38,667 INFO L933 BasicCegarLoop]: 182 mSDtfsCounter, 394 mSDsluCounter, 2029 mSDsCounter, 0 mSdLazyCounter, 2392 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 394 SdHoareTripleChecker+Valid, 1926 SdHoareTripleChecker+Invalid, 2454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 2392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 20:25:38,667 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [394 Valid, 1926 Invalid, 2454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 2392 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 20:25:38,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7455 states. [2022-03-03 20:25:38,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7455 to 5266. [2022-03-03 20:25:38,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5266 states, 5265 states have (on average 3.388414055080722) internal successors, (17840), 5265 states have internal predecessors, (17840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:38,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5266 states to 5266 states and 17840 transitions. [2022-03-03 20:25:38,773 INFO L78 Accepts]: Start accepts. Automaton has 5266 states and 17840 transitions. Word has length 39 [2022-03-03 20:25:38,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:25:38,773 INFO L470 AbstractCegarLoop]: Abstraction has 5266 states and 17840 transitions. [2022-03-03 20:25:38,773 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:38,773 INFO L276 IsEmpty]: Start isEmpty. Operand 5266 states and 17840 transitions. [2022-03-03 20:25:38,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:25:38,780 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:25:38,780 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:25:38,780 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable303 [2022-03-03 20:25:38,780 INFO L402 AbstractCegarLoop]: === Iteration 305 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:25:38,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:25:38,780 INFO L85 PathProgramCache]: Analyzing trace with hash -509354792, now seen corresponding path program 305 times [2022-03-03 20:25:38,780 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:25:38,780 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306950250] [2022-03-03 20:25:38,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:25:38,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:25:38,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:25:39,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:25:39,008 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:25:39,008 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306950250] [2022-03-03 20:25:39,008 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306950250] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:25:39,008 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:25:39,008 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:25:39,008 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497393174] [2022-03-03 20:25:39,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:25:39,008 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:25:39,008 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:25:39,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:25:39,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:25:39,008 INFO L87 Difference]: Start difference. First operand 5266 states and 17840 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:40,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:25:40,819 INFO L93 Difference]: Finished difference Result 8379 states and 28143 transitions. [2022-03-03 20:25:40,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-03 20:25:40,819 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:25:40,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:25:40,835 INFO L225 Difference]: With dead ends: 8379 [2022-03-03 20:25:40,835 INFO L226 Difference]: Without dead ends: 8263 [2022-03-03 20:25:40,836 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1040 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=338, Invalid=3694, Unknown=0, NotChecked=0, Total=4032 [2022-03-03 20:25:40,836 INFO L933 BasicCegarLoop]: 234 mSDtfsCounter, 431 mSDsluCounter, 2557 mSDsCounter, 0 mSdLazyCounter, 2968 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 431 SdHoareTripleChecker+Valid, 2494 SdHoareTripleChecker+Invalid, 3040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 2968 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-03 20:25:40,836 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [431 Valid, 2494 Invalid, 3040 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 2968 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-03 20:25:40,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8263 states. [2022-03-03 20:25:40,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8263 to 5228. [2022-03-03 20:25:40,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5228 states, 5227 states have (on average 3.3906638607231683) internal successors, (17723), 5227 states have internal predecessors, (17723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:40,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5228 states to 5228 states and 17723 transitions. [2022-03-03 20:25:40,919 INFO L78 Accepts]: Start accepts. Automaton has 5228 states and 17723 transitions. Word has length 39 [2022-03-03 20:25:40,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:25:40,919 INFO L470 AbstractCegarLoop]: Abstraction has 5228 states and 17723 transitions. [2022-03-03 20:25:40,919 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:40,920 INFO L276 IsEmpty]: Start isEmpty. Operand 5228 states and 17723 transitions. [2022-03-03 20:25:40,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:25:40,926 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:25:40,927 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:25:40,927 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable304 [2022-03-03 20:25:40,927 INFO L402 AbstractCegarLoop]: === Iteration 306 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:25:40,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:25:40,927 INFO L85 PathProgramCache]: Analyzing trace with hash -921219652, now seen corresponding path program 306 times [2022-03-03 20:25:40,927 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:25:40,927 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451956318] [2022-03-03 20:25:40,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:25:40,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:25:40,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:25:41,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:25:41,151 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:25:41,151 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451956318] [2022-03-03 20:25:41,151 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451956318] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:25:41,151 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:25:41,151 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:25:41,151 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508289929] [2022-03-03 20:25:41,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:25:41,151 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:25:41,151 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:25:41,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:25:41,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:25:41,152 INFO L87 Difference]: Start difference. First operand 5228 states and 17723 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:42,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:25:42,124 INFO L93 Difference]: Finished difference Result 5722 states and 19189 transitions. [2022-03-03 20:25:42,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-03-03 20:25:42,124 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:25:42,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:25:42,134 INFO L225 Difference]: With dead ends: 5722 [2022-03-03 20:25:42,134 INFO L226 Difference]: Without dead ends: 5655 [2022-03-03 20:25:42,135 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 752 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=298, Invalid=2894, Unknown=0, NotChecked=0, Total=3192 [2022-03-03 20:25:42,135 INFO L933 BasicCegarLoop]: 118 mSDtfsCounter, 253 mSDsluCounter, 1400 mSDsCounter, 0 mSdLazyCounter, 1890 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 1209 SdHoareTripleChecker+Invalid, 1954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 1890 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:25:42,135 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [253 Valid, 1209 Invalid, 1954 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 1890 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:25:42,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5655 states. [2022-03-03 20:25:42,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5655 to 5254. [2022-03-03 20:25:42,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5254 states, 5253 states have (on average 3.3902531886541025) internal successors, (17809), 5253 states have internal predecessors, (17809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:42,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5254 states to 5254 states and 17809 transitions. [2022-03-03 20:25:42,206 INFO L78 Accepts]: Start accepts. Automaton has 5254 states and 17809 transitions. Word has length 39 [2022-03-03 20:25:42,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:25:42,207 INFO L470 AbstractCegarLoop]: Abstraction has 5254 states and 17809 transitions. [2022-03-03 20:25:42,207 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:42,207 INFO L276 IsEmpty]: Start isEmpty. Operand 5254 states and 17809 transitions. [2022-03-03 20:25:42,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:25:42,214 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:25:42,214 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:25:42,214 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable305 [2022-03-03 20:25:42,214 INFO L402 AbstractCegarLoop]: === Iteration 307 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:25:42,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:25:42,214 INFO L85 PathProgramCache]: Analyzing trace with hash -1051814500, now seen corresponding path program 307 times [2022-03-03 20:25:42,214 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:25:42,214 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565010154] [2022-03-03 20:25:42,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:25:42,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:25:42,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:25:42,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:25:42,357 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:25:42,357 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565010154] [2022-03-03 20:25:42,357 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565010154] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:25:42,357 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:25:42,357 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:25:42,358 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694037940] [2022-03-03 20:25:42,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:25:42,358 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:25:42,358 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:25:42,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:25:42,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:25:42,358 INFO L87 Difference]: Start difference. First operand 5254 states and 17809 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:43,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:25:43,195 INFO L93 Difference]: Finished difference Result 5654 states and 18989 transitions. [2022-03-03 20:25:43,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-03-03 20:25:43,195 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:25:43,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:25:43,206 INFO L225 Difference]: With dead ends: 5654 [2022-03-03 20:25:43,206 INFO L226 Difference]: Without dead ends: 5591 [2022-03-03 20:25:43,206 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 638 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=284, Invalid=2578, Unknown=0, NotChecked=0, Total=2862 [2022-03-03 20:25:43,206 INFO L933 BasicCegarLoop]: 105 mSDtfsCounter, 228 mSDsluCounter, 1273 mSDsCounter, 0 mSdLazyCounter, 1709 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 1071 SdHoareTripleChecker+Invalid, 1770 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 1709 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 20:25:43,206 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [228 Valid, 1071 Invalid, 1770 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 1709 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 20:25:43,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5591 states. [2022-03-03 20:25:43,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5591 to 5254. [2022-03-03 20:25:43,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5254 states, 5253 states have (on average 3.389491719017704) internal successors, (17805), 5253 states have internal predecessors, (17805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:43,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5254 states to 5254 states and 17805 transitions. [2022-03-03 20:25:43,277 INFO L78 Accepts]: Start accepts. Automaton has 5254 states and 17805 transitions. Word has length 39 [2022-03-03 20:25:43,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:25:43,278 INFO L470 AbstractCegarLoop]: Abstraction has 5254 states and 17805 transitions. [2022-03-03 20:25:43,278 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:43,278 INFO L276 IsEmpty]: Start isEmpty. Operand 5254 states and 17805 transitions. [2022-03-03 20:25:43,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:25:43,284 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:25:43,284 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:25:43,284 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable306 [2022-03-03 20:25:43,284 INFO L402 AbstractCegarLoop]: === Iteration 308 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:25:43,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:25:43,285 INFO L85 PathProgramCache]: Analyzing trace with hash -1187493092, now seen corresponding path program 308 times [2022-03-03 20:25:43,285 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:25:43,285 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054894942] [2022-03-03 20:25:43,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:25:43,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:25:43,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:25:43,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:25:43,442 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:25:43,442 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054894942] [2022-03-03 20:25:43,442 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054894942] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:25:43,442 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:25:43,442 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:25:43,443 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627047981] [2022-03-03 20:25:43,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:25:43,443 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:25:43,443 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:25:43,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:25:43,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:25:43,443 INFO L87 Difference]: Start difference. First operand 5254 states and 17805 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:44,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:25:44,835 INFO L93 Difference]: Finished difference Result 5867 states and 19517 transitions. [2022-03-03 20:25:44,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-03-03 20:25:44,835 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:25:44,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:25:44,846 INFO L225 Difference]: With dead ends: 5867 [2022-03-03 20:25:44,846 INFO L226 Difference]: Without dead ends: 5824 [2022-03-03 20:25:44,846 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1426 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=439, Invalid=4673, Unknown=0, NotChecked=0, Total=5112 [2022-03-03 20:25:44,846 INFO L933 BasicCegarLoop]: 122 mSDtfsCounter, 341 mSDsluCounter, 1537 mSDsCounter, 0 mSdLazyCounter, 2200 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 341 SdHoareTripleChecker+Valid, 1314 SdHoareTripleChecker+Invalid, 2289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 2200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:25:44,846 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [341 Valid, 1314 Invalid, 2289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 2200 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:25:44,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5824 states. [2022-03-03 20:25:44,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5824 to 5266. [2022-03-03 20:25:44,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5266 states, 5265 states have (on average 3.3886039886039887) internal successors, (17841), 5265 states have internal predecessors, (17841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:44,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5266 states to 5266 states and 17841 transitions. [2022-03-03 20:25:44,914 INFO L78 Accepts]: Start accepts. Automaton has 5266 states and 17841 transitions. Word has length 39 [2022-03-03 20:25:44,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:25:44,914 INFO L470 AbstractCegarLoop]: Abstraction has 5266 states and 17841 transitions. [2022-03-03 20:25:44,914 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:44,914 INFO L276 IsEmpty]: Start isEmpty. Operand 5266 states and 17841 transitions. [2022-03-03 20:25:44,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:25:44,921 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:25:44,921 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:25:44,921 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable307 [2022-03-03 20:25:44,921 INFO L402 AbstractCegarLoop]: === Iteration 309 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:25:44,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:25:44,921 INFO L85 PathProgramCache]: Analyzing trace with hash 1326875902, now seen corresponding path program 309 times [2022-03-03 20:25:44,921 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:25:44,921 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880247513] [2022-03-03 20:25:44,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:25:44,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:25:44,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:25:45,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:25:45,134 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:25:45,134 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880247513] [2022-03-03 20:25:45,134 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880247513] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:25:45,134 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:25:45,134 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:25:45,134 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67821351] [2022-03-03 20:25:45,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:25:45,134 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:25:45,134 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:25:45,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:25:45,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:25:45,135 INFO L87 Difference]: Start difference. First operand 5266 states and 17841 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:46,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:25:46,456 INFO L93 Difference]: Finished difference Result 5847 states and 19459 transitions. [2022-03-03 20:25:46,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-03-03 20:25:46,456 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:25:46,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:25:46,468 INFO L225 Difference]: With dead ends: 5847 [2022-03-03 20:25:46,468 INFO L226 Difference]: Without dead ends: 5795 [2022-03-03 20:25:46,468 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1372 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=427, Invalid=4543, Unknown=0, NotChecked=0, Total=4970 [2022-03-03 20:25:46,468 INFO L933 BasicCegarLoop]: 119 mSDtfsCounter, 328 mSDsluCounter, 1496 mSDsCounter, 0 mSdLazyCounter, 2103 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 328 SdHoareTripleChecker+Valid, 1282 SdHoareTripleChecker+Invalid, 2185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 2103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:25:46,469 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [328 Valid, 1282 Invalid, 2185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 2103 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:25:46,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5795 states. [2022-03-03 20:25:46,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5795 to 5258. [2022-03-03 20:25:46,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5258 states, 5257 states have (on average 3.389956248811109) internal successors, (17821), 5257 states have internal predecessors, (17821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:46,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5258 states to 5258 states and 17821 transitions. [2022-03-03 20:25:46,545 INFO L78 Accepts]: Start accepts. Automaton has 5258 states and 17821 transitions. Word has length 39 [2022-03-03 20:25:46,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:25:46,545 INFO L470 AbstractCegarLoop]: Abstraction has 5258 states and 17821 transitions. [2022-03-03 20:25:46,545 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:46,545 INFO L276 IsEmpty]: Start isEmpty. Operand 5258 states and 17821 transitions. [2022-03-03 20:25:46,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:25:46,552 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:25:46,552 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:25:46,552 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable308 [2022-03-03 20:25:46,552 INFO L402 AbstractCegarLoop]: === Iteration 310 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:25:46,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:25:46,553 INFO L85 PathProgramCache]: Analyzing trace with hash -269009522, now seen corresponding path program 310 times [2022-03-03 20:25:46,553 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:25:46,553 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288633312] [2022-03-03 20:25:46,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:25:46,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:25:46,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:25:46,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:25:46,719 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:25:46,719 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288633312] [2022-03-03 20:25:46,719 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288633312] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:25:46,719 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:25:46,719 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:25:46,719 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527744815] [2022-03-03 20:25:46,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:25:46,719 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:25:46,719 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:25:46,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:25:46,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:25:46,720 INFO L87 Difference]: Start difference. First operand 5258 states and 17821 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:47,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:25:47,680 INFO L93 Difference]: Finished difference Result 5783 states and 19267 transitions. [2022-03-03 20:25:47,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-03-03 20:25:47,680 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:25:47,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:25:47,690 INFO L225 Difference]: With dead ends: 5783 [2022-03-03 20:25:47,691 INFO L226 Difference]: Without dead ends: 5728 [2022-03-03 20:25:47,691 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 744 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=318, Invalid=2874, Unknown=0, NotChecked=0, Total=3192 [2022-03-03 20:25:47,691 INFO L933 BasicCegarLoop]: 106 mSDtfsCounter, 255 mSDsluCounter, 1330 mSDsCounter, 0 mSdLazyCounter, 1784 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 1092 SdHoareTripleChecker+Invalid, 1848 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 1784 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 20:25:47,691 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [255 Valid, 1092 Invalid, 1848 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 1784 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 20:25:47,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5728 states. [2022-03-03 20:25:47,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5728 to 5260. [2022-03-03 20:25:47,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5260 states, 5259 states have (on average 3.3892374976231223) internal successors, (17824), 5259 states have internal predecessors, (17824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:47,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5260 states to 5260 states and 17824 transitions. [2022-03-03 20:25:47,761 INFO L78 Accepts]: Start accepts. Automaton has 5260 states and 17824 transitions. Word has length 39 [2022-03-03 20:25:47,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:25:47,761 INFO L470 AbstractCegarLoop]: Abstraction has 5260 states and 17824 transitions. [2022-03-03 20:25:47,761 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:47,761 INFO L276 IsEmpty]: Start isEmpty. Operand 5260 states and 17824 transitions. [2022-03-03 20:25:47,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:25:47,768 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:25:47,768 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:25:47,768 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable309 [2022-03-03 20:25:47,769 INFO L402 AbstractCegarLoop]: === Iteration 311 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:25:47,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:25:47,769 INFO L85 PathProgramCache]: Analyzing trace with hash 903642700, now seen corresponding path program 311 times [2022-03-03 20:25:47,769 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:25:47,769 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366923191] [2022-03-03 20:25:47,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:25:47,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:25:47,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:25:47,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:25:47,923 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:25:47,923 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366923191] [2022-03-03 20:25:47,923 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366923191] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:25:47,924 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:25:47,924 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:25:47,924 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084527505] [2022-03-03 20:25:47,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:25:47,924 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:25:47,924 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:25:47,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:25:47,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:25:47,924 INFO L87 Difference]: Start difference. First operand 5260 states and 17824 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:48,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:25:48,990 INFO L93 Difference]: Finished difference Result 5718 states and 19115 transitions. [2022-03-03 20:25:48,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-03-03 20:25:48,991 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:25:48,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:25:49,002 INFO L225 Difference]: With dead ends: 5718 [2022-03-03 20:25:49,002 INFO L226 Difference]: Without dead ends: 5672 [2022-03-03 20:25:49,003 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 633 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=286, Invalid=2576, Unknown=0, NotChecked=0, Total=2862 [2022-03-03 20:25:49,003 INFO L933 BasicCegarLoop]: 104 mSDtfsCounter, 244 mSDsluCounter, 1328 mSDsCounter, 0 mSdLazyCounter, 1749 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 1089 SdHoareTripleChecker+Invalid, 1799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 1749 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:25:49,003 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [244 Valid, 1089 Invalid, 1799 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 1749 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:25:49,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5672 states. [2022-03-03 20:25:49,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5672 to 5264. [2022-03-03 20:25:49,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5264 states, 5263 states have (on average 3.3881816454493636) internal successors, (17832), 5263 states have internal predecessors, (17832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:49,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5264 states to 5264 states and 17832 transitions. [2022-03-03 20:25:49,082 INFO L78 Accepts]: Start accepts. Automaton has 5264 states and 17832 transitions. Word has length 39 [2022-03-03 20:25:49,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:25:49,083 INFO L470 AbstractCegarLoop]: Abstraction has 5264 states and 17832 transitions. [2022-03-03 20:25:49,083 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:49,083 INFO L276 IsEmpty]: Start isEmpty. Operand 5264 states and 17832 transitions. [2022-03-03 20:25:49,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:25:49,090 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:25:49,090 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:25:49,090 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable310 [2022-03-03 20:25:49,091 INFO L402 AbstractCegarLoop]: === Iteration 312 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:25:49,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:25:49,091 INFO L85 PathProgramCache]: Analyzing trace with hash 656176538, now seen corresponding path program 312 times [2022-03-03 20:25:49,091 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:25:49,091 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810637008] [2022-03-03 20:25:49,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:25:49,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:25:49,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:25:49,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:25:49,293 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:25:49,293 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810637008] [2022-03-03 20:25:49,293 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810637008] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:25:49,293 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:25:49,293 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:25:49,293 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260647295] [2022-03-03 20:25:49,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:25:49,293 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:25:49,293 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:25:49,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:25:49,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:25:49,293 INFO L87 Difference]: Start difference. First operand 5264 states and 17832 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:50,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:25:50,477 INFO L93 Difference]: Finished difference Result 5682 states and 19036 transitions. [2022-03-03 20:25:50,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-03-03 20:25:50,478 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:25:50,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:25:50,489 INFO L225 Difference]: With dead ends: 5682 [2022-03-03 20:25:50,489 INFO L226 Difference]: Without dead ends: 5633 [2022-03-03 20:25:50,490 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 667 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=299, Invalid=2671, Unknown=0, NotChecked=0, Total=2970 [2022-03-03 20:25:50,490 INFO L933 BasicCegarLoop]: 104 mSDtfsCounter, 244 mSDsluCounter, 1302 mSDsCounter, 0 mSdLazyCounter, 1712 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 1097 SdHoareTripleChecker+Invalid, 1768 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1712 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:25:50,490 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [244 Valid, 1097 Invalid, 1768 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1712 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:25:50,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5633 states. [2022-03-03 20:25:50,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5633 to 5254. [2022-03-03 20:25:50,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5254 states, 5253 states have (on average 3.3910146582905005) internal successors, (17813), 5253 states have internal predecessors, (17813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:50,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5254 states to 5254 states and 17813 transitions. [2022-03-03 20:25:50,572 INFO L78 Accepts]: Start accepts. Automaton has 5254 states and 17813 transitions. Word has length 39 [2022-03-03 20:25:50,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:25:50,572 INFO L470 AbstractCegarLoop]: Abstraction has 5254 states and 17813 transitions. [2022-03-03 20:25:50,572 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:50,572 INFO L276 IsEmpty]: Start isEmpty. Operand 5254 states and 17813 transitions. [2022-03-03 20:25:50,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:25:50,580 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:25:50,580 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:25:50,580 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable311 [2022-03-03 20:25:50,580 INFO L402 AbstractCegarLoop]: === Iteration 313 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:25:50,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:25:50,580 INFO L85 PathProgramCache]: Analyzing trace with hash 2114715834, now seen corresponding path program 313 times [2022-03-03 20:25:50,580 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:25:50,580 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3003528] [2022-03-03 20:25:50,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:25:50,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:25:50,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:25:50,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:25:50,791 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:25:50,791 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3003528] [2022-03-03 20:25:50,791 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3003528] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:25:50,791 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:25:50,791 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:25:50,791 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065261367] [2022-03-03 20:25:50,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:25:50,791 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:25:50,791 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:25:50,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:25:50,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:25:50,791 INFO L87 Difference]: Start difference. First operand 5254 states and 17813 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:51,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:25:51,813 INFO L93 Difference]: Finished difference Result 5671 states and 19049 transitions. [2022-03-03 20:25:51,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-03-03 20:25:51,814 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:25:51,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:25:51,824 INFO L225 Difference]: With dead ends: 5671 [2022-03-03 20:25:51,824 INFO L226 Difference]: Without dead ends: 5604 [2022-03-03 20:25:51,825 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 676 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=272, Invalid=2698, Unknown=0, NotChecked=0, Total=2970 [2022-03-03 20:25:51,825 INFO L933 BasicCegarLoop]: 124 mSDtfsCounter, 244 mSDsluCounter, 1424 mSDsCounter, 0 mSdLazyCounter, 1999 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 1231 SdHoareTripleChecker+Invalid, 2052 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 1999 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:25:51,825 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [244 Valid, 1231 Invalid, 2052 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 1999 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:25:51,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5604 states. [2022-03-03 20:25:51,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5604 to 5272. [2022-03-03 20:25:51,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5272 states, 5271 states have (on average 3.3874027698728892) internal successors, (17855), 5271 states have internal predecessors, (17855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:51,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5272 states to 5272 states and 17855 transitions. [2022-03-03 20:25:51,897 INFO L78 Accepts]: Start accepts. Automaton has 5272 states and 17855 transitions. Word has length 39 [2022-03-03 20:25:51,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:25:51,897 INFO L470 AbstractCegarLoop]: Abstraction has 5272 states and 17855 transitions. [2022-03-03 20:25:51,897 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:51,897 INFO L276 IsEmpty]: Start isEmpty. Operand 5272 states and 17855 transitions. [2022-03-03 20:25:51,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:25:51,905 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:25:51,905 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:25:51,905 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable312 [2022-03-03 20:25:51,905 INFO L402 AbstractCegarLoop]: === Iteration 314 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:25:51,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:25:51,905 INFO L85 PathProgramCache]: Analyzing trace with hash -1822181254, now seen corresponding path program 314 times [2022-03-03 20:25:51,905 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:25:51,905 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938263412] [2022-03-03 20:25:51,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:25:51,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:25:51,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:25:52,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:25:52,083 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:25:52,083 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938263412] [2022-03-03 20:25:52,083 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938263412] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:25:52,083 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:25:52,083 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:25:52,083 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040923559] [2022-03-03 20:25:52,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:25:52,083 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:25:52,084 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:25:52,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:25:52,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:25:52,084 INFO L87 Difference]: Start difference. First operand 5272 states and 17855 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:52,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:25:52,893 INFO L93 Difference]: Finished difference Result 5650 states and 18952 transitions. [2022-03-03 20:25:52,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-03 20:25:52,894 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:25:52,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:25:52,904 INFO L225 Difference]: With dead ends: 5650 [2022-03-03 20:25:52,904 INFO L226 Difference]: Without dead ends: 5607 [2022-03-03 20:25:52,905 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 539 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=245, Invalid=2305, Unknown=0, NotChecked=0, Total=2550 [2022-03-03 20:25:52,905 INFO L933 BasicCegarLoop]: 108 mSDtfsCounter, 233 mSDsluCounter, 1302 mSDsCounter, 0 mSdLazyCounter, 1846 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 1077 SdHoareTripleChecker+Invalid, 1887 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1846 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 20:25:52,905 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [233 Valid, 1077 Invalid, 1887 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1846 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 20:25:52,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5607 states. [2022-03-03 20:25:52,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5607 to 5290. [2022-03-03 20:25:52,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5290 states, 5289 states have (on average 3.383248251087162) internal successors, (17894), 5289 states have internal predecessors, (17894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:52,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5290 states to 5290 states and 17894 transitions. [2022-03-03 20:25:52,978 INFO L78 Accepts]: Start accepts. Automaton has 5290 states and 17894 transitions. Word has length 39 [2022-03-03 20:25:52,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:25:52,978 INFO L470 AbstractCegarLoop]: Abstraction has 5290 states and 17894 transitions. [2022-03-03 20:25:52,978 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:52,978 INFO L276 IsEmpty]: Start isEmpty. Operand 5290 states and 17894 transitions. [2022-03-03 20:25:52,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:25:52,985 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:25:52,985 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:25:52,985 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable313 [2022-03-03 20:25:52,985 INFO L402 AbstractCegarLoop]: === Iteration 315 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:25:52,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:25:52,985 INFO L85 PathProgramCache]: Analyzing trace with hash -992650084, now seen corresponding path program 315 times [2022-03-03 20:25:52,985 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:25:52,985 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263694521] [2022-03-03 20:25:52,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:25:52,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:25:52,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:25:53,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:25:53,152 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:25:53,153 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263694521] [2022-03-03 20:25:53,153 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263694521] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:25:53,153 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:25:53,153 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:25:53,153 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590000288] [2022-03-03 20:25:53,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:25:53,153 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:25:53,153 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:25:53,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:25:53,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:25:53,153 INFO L87 Difference]: Start difference. First operand 5290 states and 17894 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:53,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:25:53,972 INFO L93 Difference]: Finished difference Result 5599 states and 18829 transitions. [2022-03-03 20:25:53,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-03-03 20:25:53,972 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:25:53,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:25:53,983 INFO L225 Difference]: With dead ends: 5599 [2022-03-03 20:25:53,983 INFO L226 Difference]: Without dead ends: 5536 [2022-03-03 20:25:53,984 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 538 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=244, Invalid=2306, Unknown=0, NotChecked=0, Total=2550 [2022-03-03 20:25:53,984 INFO L933 BasicCegarLoop]: 108 mSDtfsCounter, 225 mSDsluCounter, 1283 mSDsCounter, 0 mSdLazyCounter, 1837 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 1061 SdHoareTripleChecker+Invalid, 1883 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 1837 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 20:25:53,984 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [225 Valid, 1061 Invalid, 1883 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 1837 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 20:25:53,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5536 states. [2022-03-03 20:25:54,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5536 to 5272. [2022-03-03 20:25:54,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5272 states, 5271 states have (on average 3.386264465945741) internal successors, (17849), 5271 states have internal predecessors, (17849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:54,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5272 states to 5272 states and 17849 transitions. [2022-03-03 20:25:54,056 INFO L78 Accepts]: Start accepts. Automaton has 5272 states and 17849 transitions. Word has length 39 [2022-03-03 20:25:54,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:25:54,056 INFO L470 AbstractCegarLoop]: Abstraction has 5272 states and 17849 transitions. [2022-03-03 20:25:54,056 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:54,056 INFO L276 IsEmpty]: Start isEmpty. Operand 5272 states and 17849 transitions. [2022-03-03 20:25:54,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:25:54,063 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:25:54,063 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:25:54,063 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable314 [2022-03-03 20:25:54,063 INFO L402 AbstractCegarLoop]: === Iteration 316 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:25:54,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:25:54,064 INFO L85 PathProgramCache]: Analyzing trace with hash -193876200, now seen corresponding path program 316 times [2022-03-03 20:25:54,064 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:25:54,064 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630725536] [2022-03-03 20:25:54,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:25:54,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:25:54,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:25:54,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:25:54,208 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:25:54,208 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630725536] [2022-03-03 20:25:54,209 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630725536] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:25:54,209 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:25:54,209 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:25:54,209 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253915487] [2022-03-03 20:25:54,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:25:54,209 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:25:54,209 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:25:54,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:25:54,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:25:54,209 INFO L87 Difference]: Start difference. First operand 5272 states and 17849 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:55,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:25:55,743 INFO L93 Difference]: Finished difference Result 5767 states and 19268 transitions. [2022-03-03 20:25:55,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-03-03 20:25:55,743 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:25:55,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:25:55,754 INFO L225 Difference]: With dead ends: 5767 [2022-03-03 20:25:55,754 INFO L226 Difference]: Without dead ends: 5724 [2022-03-03 20:25:55,754 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1127 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=368, Invalid=3922, Unknown=0, NotChecked=0, Total=4290 [2022-03-03 20:25:55,754 INFO L933 BasicCegarLoop]: 127 mSDtfsCounter, 313 mSDsluCounter, 1548 mSDsCounter, 0 mSdLazyCounter, 2320 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 1317 SdHoareTripleChecker+Invalid, 2382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 2320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-03 20:25:55,755 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [313 Valid, 1317 Invalid, 2382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 2320 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-03 20:25:55,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5724 states. [2022-03-03 20:25:55,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5724 to 5281. [2022-03-03 20:25:55,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5281 states, 5280 states have (on average 3.385037878787879) internal successors, (17873), 5280 states have internal predecessors, (17873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:55,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5281 states to 5281 states and 17873 transitions. [2022-03-03 20:25:55,824 INFO L78 Accepts]: Start accepts. Automaton has 5281 states and 17873 transitions. Word has length 39 [2022-03-03 20:25:55,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:25:55,824 INFO L470 AbstractCegarLoop]: Abstraction has 5281 states and 17873 transitions. [2022-03-03 20:25:55,824 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:55,824 INFO L276 IsEmpty]: Start isEmpty. Operand 5281 states and 17873 transitions. [2022-03-03 20:25:55,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:25:55,831 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:25:55,831 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:25:55,831 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable315 [2022-03-03 20:25:55,831 INFO L402 AbstractCegarLoop]: === Iteration 317 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:25:55,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:25:55,831 INFO L85 PathProgramCache]: Analyzing trace with hash -1974474502, now seen corresponding path program 317 times [2022-03-03 20:25:55,831 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:25:55,831 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339269344] [2022-03-03 20:25:55,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:25:55,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:25:55,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:25:56,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:25:56,047 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:25:56,047 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339269344] [2022-03-03 20:25:56,047 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339269344] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:25:56,047 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:25:56,047 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:25:56,047 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189347231] [2022-03-03 20:25:56,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:25:56,047 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:25:56,047 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:25:56,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:25:56,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:25:56,048 INFO L87 Difference]: Start difference. First operand 5281 states and 17873 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:57,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:25:57,685 INFO L93 Difference]: Finished difference Result 5762 states and 19249 transitions. [2022-03-03 20:25:57,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-03-03 20:25:57,685 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:25:57,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:25:57,696 INFO L225 Difference]: With dead ends: 5762 [2022-03-03 20:25:57,696 INFO L226 Difference]: Without dead ends: 5710 [2022-03-03 20:25:57,696 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1081 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=353, Invalid=3807, Unknown=0, NotChecked=0, Total=4160 [2022-03-03 20:25:57,696 INFO L933 BasicCegarLoop]: 126 mSDtfsCounter, 301 mSDsluCounter, 1537 mSDsCounter, 0 mSdLazyCounter, 2230 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 1307 SdHoareTripleChecker+Invalid, 2290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 2230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-03 20:25:57,697 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [301 Valid, 1307 Invalid, 2290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 2230 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-03 20:25:57,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5710 states. [2022-03-03 20:25:57,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5710 to 5275. [2022-03-03 20:25:57,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5275 states, 5274 states have (on average 3.385855138414865) internal successors, (17857), 5274 states have internal predecessors, (17857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:57,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5275 states to 5275 states and 17857 transitions. [2022-03-03 20:25:57,797 INFO L78 Accepts]: Start accepts. Automaton has 5275 states and 17857 transitions. Word has length 39 [2022-03-03 20:25:57,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:25:57,797 INFO L470 AbstractCegarLoop]: Abstraction has 5275 states and 17857 transitions. [2022-03-03 20:25:57,797 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:57,797 INFO L276 IsEmpty]: Start isEmpty. Operand 5275 states and 17857 transitions. [2022-03-03 20:25:57,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:25:57,806 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:25:57,806 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:25:57,806 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable316 [2022-03-03 20:25:57,806 INFO L402 AbstractCegarLoop]: === Iteration 318 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:25:57,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:25:57,806 INFO L85 PathProgramCache]: Analyzing trace with hash -1731295430, now seen corresponding path program 318 times [2022-03-03 20:25:57,807 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:25:57,807 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405200411] [2022-03-03 20:25:57,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:25:57,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:25:57,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:25:58,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:25:58,035 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:25:58,035 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405200411] [2022-03-03 20:25:58,035 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405200411] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:25:58,035 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:25:58,035 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:25:58,035 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466029528] [2022-03-03 20:25:58,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:25:58,035 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:25:58,035 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:25:58,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:25:58,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:25:58,036 INFO L87 Difference]: Start difference. First operand 5275 states and 17857 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:59,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:25:59,244 INFO L93 Difference]: Finished difference Result 5746 states and 19166 transitions. [2022-03-03 20:25:59,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-03 20:25:59,244 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:25:59,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:25:59,255 INFO L225 Difference]: With dead ends: 5746 [2022-03-03 20:25:59,255 INFO L226 Difference]: Without dead ends: 5703 [2022-03-03 20:25:59,255 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 569 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=255, Invalid=2397, Unknown=0, NotChecked=0, Total=2652 [2022-03-03 20:25:59,255 INFO L933 BasicCegarLoop]: 106 mSDtfsCounter, 251 mSDsluCounter, 1322 mSDsCounter, 0 mSdLazyCounter, 1871 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 1067 SdHoareTripleChecker+Invalid, 1911 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1871 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:25:59,255 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [251 Valid, 1067 Invalid, 1911 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1871 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:25:59,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5703 states. [2022-03-03 20:25:59,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5703 to 5284. [2022-03-03 20:25:59,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5284 states, 5283 states have (on average 3.384062085936021) internal successors, (17878), 5283 states have internal predecessors, (17878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:59,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5284 states to 5284 states and 17878 transitions. [2022-03-03 20:25:59,322 INFO L78 Accepts]: Start accepts. Automaton has 5284 states and 17878 transitions. Word has length 39 [2022-03-03 20:25:59,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:25:59,322 INFO L470 AbstractCegarLoop]: Abstraction has 5284 states and 17878 transitions. [2022-03-03 20:25:59,322 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:25:59,322 INFO L276 IsEmpty]: Start isEmpty. Operand 5284 states and 17878 transitions. [2022-03-03 20:25:59,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:25:59,329 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:25:59,329 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:25:59,329 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable317 [2022-03-03 20:25:59,329 INFO L402 AbstractCegarLoop]: === Iteration 319 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:25:59,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:25:59,329 INFO L85 PathProgramCache]: Analyzing trace with hash 18811706, now seen corresponding path program 319 times [2022-03-03 20:25:59,329 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:25:59,329 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597474695] [2022-03-03 20:25:59,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:25:59,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:25:59,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:25:59,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:25:59,475 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:25:59,475 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597474695] [2022-03-03 20:25:59,476 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597474695] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:25:59,476 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:25:59,476 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:25:59,476 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63642178] [2022-03-03 20:25:59,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:25:59,476 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:25:59,476 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:25:59,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:25:59,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:25:59,476 INFO L87 Difference]: Start difference. First operand 5284 states and 17878 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:00,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:26:00,348 INFO L93 Difference]: Finished difference Result 5709 states and 19080 transitions. [2022-03-03 20:26:00,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-03 20:26:00,348 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:26:00,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:26:00,359 INFO L225 Difference]: With dead ends: 5709 [2022-03-03 20:26:00,359 INFO L226 Difference]: Without dead ends: 5658 [2022-03-03 20:26:00,359 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 605 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=262, Invalid=2494, Unknown=0, NotChecked=0, Total=2756 [2022-03-03 20:26:00,359 INFO L933 BasicCegarLoop]: 107 mSDtfsCounter, 244 mSDsluCounter, 1330 mSDsCounter, 0 mSdLazyCounter, 1878 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 1078 SdHoareTripleChecker+Invalid, 1928 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 1878 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 20:26:00,359 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [244 Valid, 1078 Invalid, 1928 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 1878 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 20:26:00,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5658 states. [2022-03-03 20:26:00,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5658 to 5278. [2022-03-03 20:26:00,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5278 states, 5277 states have (on average 3.3848777714610576) internal successors, (17862), 5277 states have internal predecessors, (17862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:00,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5278 states to 5278 states and 17862 transitions. [2022-03-03 20:26:00,450 INFO L78 Accepts]: Start accepts. Automaton has 5278 states and 17862 transitions. Word has length 39 [2022-03-03 20:26:00,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:26:00,450 INFO L470 AbstractCegarLoop]: Abstraction has 5278 states and 17862 transitions. [2022-03-03 20:26:00,450 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:00,450 INFO L276 IsEmpty]: Start isEmpty. Operand 5278 states and 17862 transitions. [2022-03-03 20:26:00,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:26:00,457 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:26:00,457 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:26:00,457 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable318 [2022-03-03 20:26:00,457 INFO L402 AbstractCegarLoop]: === Iteration 320 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:26:00,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:26:00,458 INFO L85 PathProgramCache]: Analyzing trace with hash 636030108, now seen corresponding path program 320 times [2022-03-03 20:26:00,458 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:26:00,458 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434379942] [2022-03-03 20:26:00,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:26:00,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:26:00,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:26:00,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:26:00,614 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:26:00,615 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434379942] [2022-03-03 20:26:00,615 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434379942] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:26:00,615 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:26:00,615 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:26:00,615 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54664669] [2022-03-03 20:26:00,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:26:00,615 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:26:00,615 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:26:00,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:26:00,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:26:00,615 INFO L87 Difference]: Start difference. First operand 5278 states and 17862 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:01,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:26:01,433 INFO L93 Difference]: Finished difference Result 5681 states and 19009 transitions. [2022-03-03 20:26:01,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-03-03 20:26:01,434 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:26:01,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:26:01,444 INFO L225 Difference]: With dead ends: 5681 [2022-03-03 20:26:01,444 INFO L226 Difference]: Without dead ends: 5635 [2022-03-03 20:26:01,445 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 505 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=234, Invalid=2216, Unknown=0, NotChecked=0, Total=2450 [2022-03-03 20:26:01,445 INFO L933 BasicCegarLoop]: 107 mSDtfsCounter, 234 mSDsluCounter, 1324 mSDsCounter, 0 mSdLazyCounter, 1869 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 1076 SdHoareTripleChecker+Invalid, 1907 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1869 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 20:26:01,445 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [234 Valid, 1076 Invalid, 1907 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1869 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 20:26:01,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5635 states. [2022-03-03 20:26:01,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5635 to 5285. [2022-03-03 20:26:01,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5285 states, 5284 states have (on average 3.383232399697199) internal successors, (17877), 5284 states have internal predecessors, (17877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:01,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5285 states to 5285 states and 17877 transitions. [2022-03-03 20:26:01,516 INFO L78 Accepts]: Start accepts. Automaton has 5285 states and 17877 transitions. Word has length 39 [2022-03-03 20:26:01,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:26:01,516 INFO L470 AbstractCegarLoop]: Abstraction has 5285 states and 17877 transitions. [2022-03-03 20:26:01,516 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:01,516 INFO L276 IsEmpty]: Start isEmpty. Operand 5285 states and 17877 transitions. [2022-03-03 20:26:01,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:26:01,523 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:26:01,523 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:26:01,523 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable319 [2022-03-03 20:26:01,523 INFO L402 AbstractCegarLoop]: === Iteration 321 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:26:01,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:26:01,524 INFO L85 PathProgramCache]: Analyzing trace with hash -799037382, now seen corresponding path program 321 times [2022-03-03 20:26:01,524 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:26:01,524 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258395531] [2022-03-03 20:26:01,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:26:01,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:26:01,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:26:01,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:26:01,670 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:26:01,670 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258395531] [2022-03-03 20:26:01,670 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258395531] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:26:01,670 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:26:01,670 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:26:01,670 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632150323] [2022-03-03 20:26:01,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:26:01,670 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:26:01,671 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:26:01,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:26:01,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:26:01,671 INFO L87 Difference]: Start difference. First operand 5285 states and 17877 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:02,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:26:02,517 INFO L93 Difference]: Finished difference Result 5641 states and 18915 transitions. [2022-03-03 20:26:02,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-03 20:26:02,517 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:26:02,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:26:02,528 INFO L225 Difference]: With dead ends: 5641 [2022-03-03 20:26:02,528 INFO L226 Difference]: Without dead ends: 5580 [2022-03-03 20:26:02,529 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 569 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=253, Invalid=2399, Unknown=0, NotChecked=0, Total=2652 [2022-03-03 20:26:02,529 INFO L933 BasicCegarLoop]: 108 mSDtfsCounter, 240 mSDsluCounter, 1311 mSDsCounter, 0 mSdLazyCounter, 1861 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 1074 SdHoareTripleChecker+Invalid, 1906 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1861 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 20:26:02,529 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [240 Valid, 1074 Invalid, 1906 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 1861 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 20:26:02,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5580 states. [2022-03-03 20:26:02,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5580 to 5269. [2022-03-03 20:26:02,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5269 states, 5268 states have (on average 3.3874335611237663) internal successors, (17845), 5268 states have internal predecessors, (17845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:02,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5269 states to 5269 states and 17845 transitions. [2022-03-03 20:26:02,625 INFO L78 Accepts]: Start accepts. Automaton has 5269 states and 17845 transitions. Word has length 39 [2022-03-03 20:26:02,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:26:02,625 INFO L470 AbstractCegarLoop]: Abstraction has 5269 states and 17845 transitions. [2022-03-03 20:26:02,626 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:02,626 INFO L276 IsEmpty]: Start isEmpty. Operand 5269 states and 17845 transitions. [2022-03-03 20:26:02,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:26:02,633 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:26:02,633 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:26:02,633 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable320 [2022-03-03 20:26:02,633 INFO L402 AbstractCegarLoop]: === Iteration 322 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:26:02,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:26:02,634 INFO L85 PathProgramCache]: Analyzing trace with hash 1208759772, now seen corresponding path program 322 times [2022-03-03 20:26:02,634 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:26:02,634 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771466685] [2022-03-03 20:26:02,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:26:02,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:26:02,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:26:02,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:26:02,861 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:26:02,861 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771466685] [2022-03-03 20:26:02,861 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771466685] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:26:02,861 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:26:02,861 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:26:02,861 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051093662] [2022-03-03 20:26:02,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:26:02,862 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:26:02,862 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:26:02,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:26:02,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:26:02,862 INFO L87 Difference]: Start difference. First operand 5269 states and 17845 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:04,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:26:04,045 INFO L93 Difference]: Finished difference Result 5636 states and 18933 transitions. [2022-03-03 20:26:04,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-03 20:26:04,045 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:26:04,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:26:04,056 INFO L225 Difference]: With dead ends: 5636 [2022-03-03 20:26:04,056 INFO L226 Difference]: Without dead ends: 5573 [2022-03-03 20:26:04,057 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 573 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=259, Invalid=2393, Unknown=0, NotChecked=0, Total=2652 [2022-03-03 20:26:04,057 INFO L933 BasicCegarLoop]: 111 mSDtfsCounter, 224 mSDsluCounter, 1293 mSDsCounter, 0 mSdLazyCounter, 1797 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 1096 SdHoareTripleChecker+Invalid, 1843 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 1797 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:26:04,057 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [224 Valid, 1096 Invalid, 1843 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 1797 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:26:04,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5573 states. [2022-03-03 20:26:04,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5573 to 5273. [2022-03-03 20:26:04,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5273 states, 5272 states have (on average 3.3867602427921093) internal successors, (17855), 5272 states have internal predecessors, (17855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:04,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5273 states to 5273 states and 17855 transitions. [2022-03-03 20:26:04,124 INFO L78 Accepts]: Start accepts. Automaton has 5273 states and 17855 transitions. Word has length 39 [2022-03-03 20:26:04,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:26:04,124 INFO L470 AbstractCegarLoop]: Abstraction has 5273 states and 17855 transitions. [2022-03-03 20:26:04,124 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:04,124 INFO L276 IsEmpty]: Start isEmpty. Operand 5273 states and 17855 transitions. [2022-03-03 20:26:04,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:26:04,131 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:26:04,131 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:26:04,131 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable321 [2022-03-03 20:26:04,131 INFO L402 AbstractCegarLoop]: === Iteration 323 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:26:04,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:26:04,132 INFO L85 PathProgramCache]: Analyzing trace with hash 963267674, now seen corresponding path program 323 times [2022-03-03 20:26:04,132 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:26:04,132 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181273912] [2022-03-03 20:26:04,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:26:04,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:26:04,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:26:04,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:26:04,350 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:26:04,350 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181273912] [2022-03-03 20:26:04,350 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181273912] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:26:04,350 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:26:04,350 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:26:04,350 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047238769] [2022-03-03 20:26:04,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:26:04,350 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:26:04,350 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:26:04,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:26:04,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:26:04,351 INFO L87 Difference]: Start difference. First operand 5273 states and 17855 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:05,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:26:05,513 INFO L93 Difference]: Finished difference Result 5675 states and 19022 transitions. [2022-03-03 20:26:05,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-03 20:26:05,513 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:26:05,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:26:05,524 INFO L225 Difference]: With dead ends: 5675 [2022-03-03 20:26:05,524 INFO L226 Difference]: Without dead ends: 5632 [2022-03-03 20:26:05,524 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 541 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=246, Invalid=2304, Unknown=0, NotChecked=0, Total=2550 [2022-03-03 20:26:05,525 INFO L933 BasicCegarLoop]: 109 mSDtfsCounter, 236 mSDsluCounter, 1317 mSDsCounter, 0 mSdLazyCounter, 1836 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 1089 SdHoareTripleChecker+Invalid, 1873 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1836 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:26:05,525 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [236 Valid, 1089 Invalid, 1873 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1836 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:26:05,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5632 states. [2022-03-03 20:26:05,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5632 to 5291. [2022-03-03 20:26:05,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5291 states, 5290 states have (on average 3.382608695652174) internal successors, (17894), 5290 states have internal predecessors, (17894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:05,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5291 states to 5291 states and 17894 transitions. [2022-03-03 20:26:05,659 INFO L78 Accepts]: Start accepts. Automaton has 5291 states and 17894 transitions. Word has length 39 [2022-03-03 20:26:05,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:26:05,659 INFO L470 AbstractCegarLoop]: Abstraction has 5291 states and 17894 transitions. [2022-03-03 20:26:05,659 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:05,659 INFO L276 IsEmpty]: Start isEmpty. Operand 5291 states and 17894 transitions. [2022-03-03 20:26:05,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:26:05,665 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:26:05,665 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:26:05,665 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable322 [2022-03-03 20:26:05,665 INFO L402 AbstractCegarLoop]: === Iteration 324 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:26:05,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:26:05,666 INFO L85 PathProgramCache]: Analyzing trace with hash 1792798844, now seen corresponding path program 324 times [2022-03-03 20:26:05,666 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:26:05,666 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808424755] [2022-03-03 20:26:05,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:26:05,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:26:05,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:26:05,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:26:05,884 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:26:05,884 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808424755] [2022-03-03 20:26:05,884 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808424755] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:26:05,884 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:26:05,884 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:26:05,884 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421354816] [2022-03-03 20:26:05,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:26:05,884 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:26:05,884 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:26:05,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:26:05,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:26:05,885 INFO L87 Difference]: Start difference. First operand 5291 states and 17894 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:06,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:26:06,747 INFO L93 Difference]: Finished difference Result 5606 states and 18848 transitions. [2022-03-03 20:26:06,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-03-03 20:26:06,748 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:26:06,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:26:06,758 INFO L225 Difference]: With dead ends: 5606 [2022-03-03 20:26:06,758 INFO L226 Difference]: Without dead ends: 5543 [2022-03-03 20:26:06,758 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 507 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=232, Invalid=2218, Unknown=0, NotChecked=0, Total=2450 [2022-03-03 20:26:06,759 INFO L933 BasicCegarLoop]: 113 mSDtfsCounter, 214 mSDsluCounter, 1336 mSDsCounter, 0 mSdLazyCounter, 1903 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 1104 SdHoareTripleChecker+Invalid, 1943 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1903 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:26:06,759 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [214 Valid, 1104 Invalid, 1943 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1903 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:26:06,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5543 states. [2022-03-03 20:26:06,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5543 to 5273. [2022-03-03 20:26:06,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5273 states, 5272 states have (on average 3.386001517450683) internal successors, (17851), 5272 states have internal predecessors, (17851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:06,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5273 states to 5273 states and 17851 transitions. [2022-03-03 20:26:06,826 INFO L78 Accepts]: Start accepts. Automaton has 5273 states and 17851 transitions. Word has length 39 [2022-03-03 20:26:06,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:26:06,826 INFO L470 AbstractCegarLoop]: Abstraction has 5273 states and 17851 transitions. [2022-03-03 20:26:06,826 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:06,826 INFO L276 IsEmpty]: Start isEmpty. Operand 5273 states and 17851 transitions. [2022-03-03 20:26:06,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:26:06,834 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:26:06,834 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:26:06,834 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable323 [2022-03-03 20:26:06,834 INFO L402 AbstractCegarLoop]: === Iteration 325 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:26:06,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:26:06,834 INFO L85 PathProgramCache]: Analyzing trace with hash -220436964, now seen corresponding path program 325 times [2022-03-03 20:26:06,834 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:26:06,834 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415880818] [2022-03-03 20:26:06,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:26:06,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:26:06,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:26:06,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:26:06,980 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:26:06,980 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415880818] [2022-03-03 20:26:06,980 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415880818] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:26:06,980 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:26:06,980 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:26:06,980 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651195890] [2022-03-03 20:26:06,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:26:06,980 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:26:06,980 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:26:06,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:26:06,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:26:06,981 INFO L87 Difference]: Start difference. First operand 5273 states and 17851 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:07,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:26:07,871 INFO L93 Difference]: Finished difference Result 5675 states and 19024 transitions. [2022-03-03 20:26:07,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-03-03 20:26:07,871 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:26:07,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:26:07,882 INFO L225 Difference]: With dead ends: 5675 [2022-03-03 20:26:07,882 INFO L226 Difference]: Without dead ends: 5620 [2022-03-03 20:26:07,883 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 681 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=285, Invalid=2685, Unknown=0, NotChecked=0, Total=2970 [2022-03-03 20:26:07,883 INFO L933 BasicCegarLoop]: 111 mSDtfsCounter, 249 mSDsluCounter, 1339 mSDsCounter, 0 mSdLazyCounter, 1874 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 1113 SdHoareTripleChecker+Invalid, 1923 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1874 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 20:26:07,883 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [249 Valid, 1113 Invalid, 1923 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1874 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 20:26:07,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5620 states. [2022-03-03 20:26:07,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5620 to 5275. [2022-03-03 20:26:07,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5275 states, 5274 states have (on average 3.385665529010239) internal successors, (17856), 5274 states have internal predecessors, (17856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:07,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5275 states to 5275 states and 17856 transitions. [2022-03-03 20:26:07,978 INFO L78 Accepts]: Start accepts. Automaton has 5275 states and 17856 transitions. Word has length 39 [2022-03-03 20:26:07,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:26:07,978 INFO L470 AbstractCegarLoop]: Abstraction has 5275 states and 17856 transitions. [2022-03-03 20:26:07,978 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:07,978 INFO L276 IsEmpty]: Start isEmpty. Operand 5275 states and 17856 transitions. [2022-03-03 20:26:07,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:26:07,985 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:26:07,986 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:26:07,986 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable324 [2022-03-03 20:26:07,986 INFO L402 AbstractCegarLoop]: === Iteration 326 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:26:07,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:26:07,986 INFO L85 PathProgramCache]: Analyzing trace with hash 1116621050, now seen corresponding path program 326 times [2022-03-03 20:26:07,986 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:26:07,986 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198336572] [2022-03-03 20:26:07,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:26:07,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:26:07,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:26:08,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:26:08,206 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:26:08,206 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198336572] [2022-03-03 20:26:08,206 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198336572] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:26:08,206 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:26:08,206 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:26:08,206 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509901899] [2022-03-03 20:26:08,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:26:08,206 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:26:08,206 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:26:08,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:26:08,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:26:08,207 INFO L87 Difference]: Start difference. First operand 5275 states and 17856 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:09,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:26:09,416 INFO L93 Difference]: Finished difference Result 5651 states and 18954 transitions. [2022-03-03 20:26:09,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-03 20:26:09,417 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:26:09,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:26:09,427 INFO L225 Difference]: With dead ends: 5651 [2022-03-03 20:26:09,427 INFO L226 Difference]: Without dead ends: 5608 [2022-03-03 20:26:09,428 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 610 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=261, Invalid=2495, Unknown=0, NotChecked=0, Total=2756 [2022-03-03 20:26:09,428 INFO L933 BasicCegarLoop]: 109 mSDtfsCounter, 237 mSDsluCounter, 1319 mSDsCounter, 0 mSdLazyCounter, 1844 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 1095 SdHoareTripleChecker+Invalid, 1886 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 1844 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:26:09,428 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [237 Valid, 1095 Invalid, 1886 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 1844 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:26:09,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5608 states. [2022-03-03 20:26:09,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5608 to 5281. [2022-03-03 20:26:09,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5281 states, 5280 states have (on average 3.384280303030303) internal successors, (17869), 5280 states have internal predecessors, (17869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:09,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5281 states to 5281 states and 17869 transitions. [2022-03-03 20:26:09,494 INFO L78 Accepts]: Start accepts. Automaton has 5281 states and 17869 transitions. Word has length 39 [2022-03-03 20:26:09,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:26:09,494 INFO L470 AbstractCegarLoop]: Abstraction has 5281 states and 17869 transitions. [2022-03-03 20:26:09,494 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:09,494 INFO L276 IsEmpty]: Start isEmpty. Operand 5281 states and 17869 transitions. [2022-03-03 20:26:09,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:26:09,501 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:26:09,501 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:26:09,501 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable325 [2022-03-03 20:26:09,501 INFO L402 AbstractCegarLoop]: === Iteration 327 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:26:09,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:26:09,501 INFO L85 PathProgramCache]: Analyzing trace with hash 845201500, now seen corresponding path program 327 times [2022-03-03 20:26:09,501 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:26:09,501 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044347909] [2022-03-03 20:26:09,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:26:09,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:26:09,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:26:09,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:26:09,721 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:26:09,721 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044347909] [2022-03-03 20:26:09,721 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044347909] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:26:09,721 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:26:09,721 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:26:09,721 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939134304] [2022-03-03 20:26:09,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:26:09,721 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:26:09,722 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:26:09,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:26:09,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:26:09,722 INFO L87 Difference]: Start difference. First operand 5281 states and 17869 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:10,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:26:10,948 INFO L93 Difference]: Finished difference Result 5600 states and 18831 transitions. [2022-03-03 20:26:10,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-03 20:26:10,948 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:26:10,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:26:10,959 INFO L225 Difference]: With dead ends: 5600 [2022-03-03 20:26:10,959 INFO L226 Difference]: Without dead ends: 5539 [2022-03-03 20:26:10,959 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 575 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=247, Invalid=2405, Unknown=0, NotChecked=0, Total=2652 [2022-03-03 20:26:10,959 INFO L933 BasicCegarLoop]: 112 mSDtfsCounter, 217 mSDsluCounter, 1331 mSDsCounter, 0 mSdLazyCounter, 1903 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 1101 SdHoareTripleChecker+Invalid, 1948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1903 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:26:10,959 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [217 Valid, 1101 Invalid, 1948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 1903 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:26:10,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5539 states. [2022-03-03 20:26:11,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5539 to 5269. [2022-03-03 20:26:11,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5269 states, 5268 states have (on average 3.3870539104024298) internal successors, (17843), 5268 states have internal predecessors, (17843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:11,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5269 states to 5269 states and 17843 transitions. [2022-03-03 20:26:11,054 INFO L78 Accepts]: Start accepts. Automaton has 5269 states and 17843 transitions. Word has length 39 [2022-03-03 20:26:11,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:26:11,054 INFO L470 AbstractCegarLoop]: Abstraction has 5269 states and 17843 transitions. [2022-03-03 20:26:11,054 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:11,054 INFO L276 IsEmpty]: Start isEmpty. Operand 5269 states and 17843 transitions. [2022-03-03 20:26:11,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:26:11,061 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:26:11,061 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:26:11,061 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable326 [2022-03-03 20:26:11,061 INFO L402 AbstractCegarLoop]: === Iteration 328 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:26:11,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:26:11,061 INFO L85 PathProgramCache]: Analyzing trace with hash 747046286, now seen corresponding path program 328 times [2022-03-03 20:26:11,061 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:26:11,061 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996249660] [2022-03-03 20:26:11,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:26:11,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:26:11,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:26:11,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:26:11,278 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:26:11,278 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996249660] [2022-03-03 20:26:11,278 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996249660] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:26:11,278 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:26:11,278 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:26:11,278 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069388611] [2022-03-03 20:26:11,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:26:11,279 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:26:11,279 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:26:11,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:26:11,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:26:11,279 INFO L87 Difference]: Start difference. First operand 5269 states and 17843 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:12,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:26:12,409 INFO L93 Difference]: Finished difference Result 5834 states and 19388 transitions. [2022-03-03 20:26:12,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-03-03 20:26:12,409 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:26:12,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:26:12,420 INFO L225 Difference]: With dead ends: 5834 [2022-03-03 20:26:12,420 INFO L226 Difference]: Without dead ends: 5779 [2022-03-03 20:26:12,420 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 896 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=353, Invalid=3307, Unknown=0, NotChecked=0, Total=3660 [2022-03-03 20:26:12,420 INFO L933 BasicCegarLoop]: 111 mSDtfsCounter, 277 mSDsluCounter, 1390 mSDsCounter, 0 mSdLazyCounter, 1959 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 1133 SdHoareTripleChecker+Invalid, 2031 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 1959 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:26:12,420 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [277 Valid, 1133 Invalid, 2031 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 1959 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:26:12,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5779 states. [2022-03-03 20:26:12,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5779 to 5274. [2022-03-03 20:26:12,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5274 states, 5273 states have (on average 3.386117959415892) internal successors, (17855), 5273 states have internal predecessors, (17855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:12,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5274 states to 5274 states and 17855 transitions. [2022-03-03 20:26:12,488 INFO L78 Accepts]: Start accepts. Automaton has 5274 states and 17855 transitions. Word has length 39 [2022-03-03 20:26:12,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:26:12,488 INFO L470 AbstractCegarLoop]: Abstraction has 5274 states and 17855 transitions. [2022-03-03 20:26:12,488 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:12,488 INFO L276 IsEmpty]: Start isEmpty. Operand 5274 states and 17855 transitions. [2022-03-03 20:26:12,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:26:12,495 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:26:12,495 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:26:12,495 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable327 [2022-03-03 20:26:12,495 INFO L402 AbstractCegarLoop]: === Iteration 329 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:26:12,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:26:12,495 INFO L85 PathProgramCache]: Analyzing trace with hash 1919698508, now seen corresponding path program 329 times [2022-03-03 20:26:12,495 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:26:12,495 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596879172] [2022-03-03 20:26:12,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:26:12,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:26:12,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:26:12,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:26:12,638 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:26:12,638 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596879172] [2022-03-03 20:26:12,638 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596879172] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:26:12,638 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:26:12,638 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:26:12,638 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353863867] [2022-03-03 20:26:12,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:26:12,638 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:26:12,639 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:26:12,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:26:12,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:26:12,639 INFO L87 Difference]: Start difference. First operand 5274 states and 17855 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:13,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:26:13,623 INFO L93 Difference]: Finished difference Result 5825 states and 19355 transitions. [2022-03-03 20:26:13,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-03-03 20:26:13,624 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:26:13,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:26:13,634 INFO L225 Difference]: With dead ends: 5825 [2022-03-03 20:26:13,634 INFO L226 Difference]: Without dead ends: 5779 [2022-03-03 20:26:13,635 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 708 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=299, Invalid=2781, Unknown=0, NotChecked=0, Total=3080 [2022-03-03 20:26:13,635 INFO L933 BasicCegarLoop]: 109 mSDtfsCounter, 273 mSDsluCounter, 1396 mSDsCounter, 0 mSdLazyCounter, 1897 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 1134 SdHoareTripleChecker+Invalid, 1949 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 1897 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:26:13,635 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [273 Valid, 1134 Invalid, 1949 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 1897 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:26:13,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5779 states. [2022-03-03 20:26:13,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5779 to 5280. [2022-03-03 20:26:13,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5280 states, 5279 states have (on average 3.385110816442508) internal successors, (17870), 5279 states have internal predecessors, (17870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:13,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5280 states to 5280 states and 17870 transitions. [2022-03-03 20:26:13,725 INFO L78 Accepts]: Start accepts. Automaton has 5280 states and 17870 transitions. Word has length 39 [2022-03-03 20:26:13,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:26:13,725 INFO L470 AbstractCegarLoop]: Abstraction has 5280 states and 17870 transitions. [2022-03-03 20:26:13,725 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:13,725 INFO L276 IsEmpty]: Start isEmpty. Operand 5280 states and 17870 transitions. [2022-03-03 20:26:13,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:26:13,732 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:26:13,732 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:26:13,732 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable328 [2022-03-03 20:26:13,732 INFO L402 AbstractCegarLoop]: === Iteration 330 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:26:13,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:26:13,733 INFO L85 PathProgramCache]: Analyzing trace with hash 1672232346, now seen corresponding path program 330 times [2022-03-03 20:26:13,733 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:26:13,733 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273271922] [2022-03-03 20:26:13,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:26:13,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:26:13,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:26:13,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:26:13,894 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:26:13,894 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273271922] [2022-03-03 20:26:13,894 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273271922] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:26:13,894 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:26:13,894 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:26:13,894 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436773835] [2022-03-03 20:26:13,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:26:13,894 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:26:13,894 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:26:13,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:26:13,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:26:13,894 INFO L87 Difference]: Start difference. First operand 5280 states and 17870 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:14,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:26:14,877 INFO L93 Difference]: Finished difference Result 5789 states and 19272 transitions. [2022-03-03 20:26:14,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-03-03 20:26:14,878 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:26:14,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:26:14,888 INFO L225 Difference]: With dead ends: 5789 [2022-03-03 20:26:14,888 INFO L226 Difference]: Without dead ends: 5744 [2022-03-03 20:26:14,889 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 703 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=300, Invalid=2780, Unknown=0, NotChecked=0, Total=3080 [2022-03-03 20:26:14,889 INFO L933 BasicCegarLoop]: 109 mSDtfsCounter, 257 mSDsluCounter, 1383 mSDsCounter, 0 mSdLazyCounter, 1890 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 1129 SdHoareTripleChecker+Invalid, 1942 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 1890 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:26:14,889 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [257 Valid, 1129 Invalid, 1942 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 1890 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:26:14,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5744 states. [2022-03-03 20:26:14,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5744 to 5278. [2022-03-03 20:26:14,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5278 states, 5277 states have (on average 3.385635777904112) internal successors, (17866), 5277 states have internal predecessors, (17866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:14,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5278 states to 5278 states and 17866 transitions. [2022-03-03 20:26:14,957 INFO L78 Accepts]: Start accepts. Automaton has 5278 states and 17866 transitions. Word has length 39 [2022-03-03 20:26:14,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:26:14,957 INFO L470 AbstractCegarLoop]: Abstraction has 5278 states and 17866 transitions. [2022-03-03 20:26:14,957 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:14,957 INFO L276 IsEmpty]: Start isEmpty. Operand 5278 states and 17866 transitions. [2022-03-03 20:26:14,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:26:14,964 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:26:14,964 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:26:14,964 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable329 [2022-03-03 20:26:14,964 INFO L402 AbstractCegarLoop]: === Iteration 331 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:26:14,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:26:14,964 INFO L85 PathProgramCache]: Analyzing trace with hash 1851953628, now seen corresponding path program 331 times [2022-03-03 20:26:14,965 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:26:14,965 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144236230] [2022-03-03 20:26:14,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:26:14,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:26:14,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:26:15,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:26:15,201 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:26:15,201 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144236230] [2022-03-03 20:26:15,201 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144236230] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:26:15,201 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:26:15,201 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:26:15,201 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485771379] [2022-03-03 20:26:15,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:26:15,201 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:26:15,201 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:26:15,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:26:15,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:26:15,202 INFO L87 Difference]: Start difference. First operand 5278 states and 17866 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:16,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:26:16,368 INFO L93 Difference]: Finished difference Result 5840 states and 19400 transitions. [2022-03-03 20:26:16,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-03-03 20:26:16,368 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:26:16,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:26:16,378 INFO L225 Difference]: With dead ends: 5840 [2022-03-03 20:26:16,379 INFO L226 Difference]: Without dead ends: 5797 [2022-03-03 20:26:16,379 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 788 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=312, Invalid=2994, Unknown=0, NotChecked=0, Total=3306 [2022-03-03 20:26:16,379 INFO L933 BasicCegarLoop]: 111 mSDtfsCounter, 281 mSDsluCounter, 1388 mSDsCounter, 0 mSdLazyCounter, 1967 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 281 SdHoareTripleChecker+Valid, 1129 SdHoareTripleChecker+Invalid, 2026 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 1967 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:26:16,379 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [281 Valid, 1129 Invalid, 2026 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 1967 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:26:16,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5797 states. [2022-03-03 20:26:16,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5797 to 5287. [2022-03-03 20:26:16,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5287 states, 5286 states have (on average 3.383844116534241) internal successors, (17887), 5286 states have internal predecessors, (17887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:16,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5287 states to 5287 states and 17887 transitions. [2022-03-03 20:26:16,442 INFO L78 Accepts]: Start accepts. Automaton has 5287 states and 17887 transitions. Word has length 39 [2022-03-03 20:26:16,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:26:16,442 INFO L470 AbstractCegarLoop]: Abstraction has 5287 states and 17887 transitions. [2022-03-03 20:26:16,443 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:16,443 INFO L276 IsEmpty]: Start isEmpty. Operand 5287 states and 17887 transitions. [2022-03-03 20:26:16,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:26:16,449 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:26:16,449 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:26:16,449 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable330 [2022-03-03 20:26:16,449 INFO L402 AbstractCegarLoop]: === Iteration 332 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:26:16,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:26:16,449 INFO L85 PathProgramCache]: Analyzing trace with hash -692906532, now seen corresponding path program 332 times [2022-03-03 20:26:16,449 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:26:16,450 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409735538] [2022-03-03 20:26:16,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:26:16,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:26:16,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:26:16,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:26:16,665 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:26:16,665 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409735538] [2022-03-03 20:26:16,665 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409735538] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:26:16,665 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:26:16,665 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:26:16,665 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351153815] [2022-03-03 20:26:16,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:26:16,666 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:26:16,666 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:26:16,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:26:16,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:26:16,666 INFO L87 Difference]: Start difference. First operand 5287 states and 17887 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:17,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:26:17,838 INFO L93 Difference]: Finished difference Result 5805 states and 19315 transitions. [2022-03-03 20:26:17,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-03-03 20:26:17,838 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:26:17,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:26:17,849 INFO L225 Difference]: With dead ends: 5805 [2022-03-03 20:26:17,849 INFO L226 Difference]: Without dead ends: 5754 [2022-03-03 20:26:17,849 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 713 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=287, Invalid=2793, Unknown=0, NotChecked=0, Total=3080 [2022-03-03 20:26:17,849 INFO L933 BasicCegarLoop]: 111 mSDtfsCounter, 259 mSDsluCounter, 1375 mSDsCounter, 0 mSdLazyCounter, 1972 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 1117 SdHoareTripleChecker+Invalid, 2029 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 1972 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:26:17,849 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [259 Valid, 1117 Invalid, 2029 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 1972 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:26:17,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5754 states. [2022-03-03 20:26:17,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5754 to 5287. [2022-03-03 20:26:17,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5287 states, 5286 states have (on average 3.3832765796443436) internal successors, (17884), 5286 states have internal predecessors, (17884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:17,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5287 states to 5287 states and 17884 transitions. [2022-03-03 20:26:17,922 INFO L78 Accepts]: Start accepts. Automaton has 5287 states and 17884 transitions. Word has length 39 [2022-03-03 20:26:17,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:26:17,922 INFO L470 AbstractCegarLoop]: Abstraction has 5287 states and 17884 transitions. [2022-03-03 20:26:17,922 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:17,922 INFO L276 IsEmpty]: Start isEmpty. Operand 5287 states and 17884 transitions. [2022-03-03 20:26:17,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:26:17,929 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:26:17,929 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:26:17,929 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable331 [2022-03-03 20:26:17,929 INFO L402 AbstractCegarLoop]: === Iteration 333 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:26:17,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:26:17,929 INFO L85 PathProgramCache]: Analyzing trace with hash -75688130, now seen corresponding path program 333 times [2022-03-03 20:26:17,929 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:26:17,929 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387718803] [2022-03-03 20:26:17,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:26:17,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:26:17,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:26:18,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:26:18,072 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:26:18,072 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387718803] [2022-03-03 20:26:18,072 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387718803] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:26:18,072 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:26:18,072 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:26:18,073 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520745015] [2022-03-03 20:26:18,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:26:18,073 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:26:18,073 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:26:18,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:26:18,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:26:18,073 INFO L87 Difference]: Start difference. First operand 5287 states and 17884 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:18,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:26:18,982 INFO L93 Difference]: Finished difference Result 5828 states and 19359 transitions. [2022-03-03 20:26:18,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-03-03 20:26:18,982 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:26:18,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:26:18,992 INFO L225 Difference]: With dead ends: 5828 [2022-03-03 20:26:18,992 INFO L226 Difference]: Without dead ends: 5782 [2022-03-03 20:26:18,992 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 641 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=271, Invalid=2591, Unknown=0, NotChecked=0, Total=2862 [2022-03-03 20:26:18,992 INFO L933 BasicCegarLoop]: 112 mSDtfsCounter, 262 mSDsluCounter, 1396 mSDsCounter, 0 mSdLazyCounter, 1937 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 1140 SdHoareTripleChecker+Invalid, 1987 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 1937 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:26:18,992 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [262 Valid, 1140 Invalid, 1987 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 1937 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:26:18,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5782 states. [2022-03-03 20:26:19,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5782 to 5294. [2022-03-03 20:26:19,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5294 states, 5293 states have (on average 3.3816361231815604) internal successors, (17899), 5293 states have internal predecessors, (17899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:19,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5294 states to 5294 states and 17899 transitions. [2022-03-03 20:26:19,060 INFO L78 Accepts]: Start accepts. Automaton has 5294 states and 17899 transitions. Word has length 39 [2022-03-03 20:26:19,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:26:19,060 INFO L470 AbstractCegarLoop]: Abstraction has 5294 states and 17899 transitions. [2022-03-03 20:26:19,060 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:19,060 INFO L276 IsEmpty]: Start isEmpty. Operand 5294 states and 17899 transitions. [2022-03-03 20:26:19,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:26:19,067 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:26:19,067 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:26:19,067 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable332 [2022-03-03 20:26:19,067 INFO L402 AbstractCegarLoop]: === Iteration 334 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:26:19,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:26:19,068 INFO L85 PathProgramCache]: Analyzing trace with hash -1510755620, now seen corresponding path program 334 times [2022-03-03 20:26:19,068 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:26:19,068 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624318481] [2022-03-03 20:26:19,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:26:19,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:26:19,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:26:19,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:26:19,213 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:26:19,213 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624318481] [2022-03-03 20:26:19,213 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624318481] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:26:19,213 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:26:19,213 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:26:19,213 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356940866] [2022-03-03 20:26:19,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:26:19,213 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:26:19,214 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:26:19,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:26:19,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:26:19,214 INFO L87 Difference]: Start difference. First operand 5294 states and 17899 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:20,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:26:20,103 INFO L93 Difference]: Finished difference Result 5791 states and 19268 transitions. [2022-03-03 20:26:20,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-03-03 20:26:20,103 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:26:20,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:26:20,113 INFO L225 Difference]: With dead ends: 5791 [2022-03-03 20:26:20,113 INFO L226 Difference]: Without dead ends: 5736 [2022-03-03 20:26:20,114 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 677 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=277, Invalid=2693, Unknown=0, NotChecked=0, Total=2970 [2022-03-03 20:26:20,114 INFO L933 BasicCegarLoop]: 110 mSDtfsCounter, 268 mSDsluCounter, 1348 mSDsCounter, 0 mSdLazyCounter, 1949 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 1101 SdHoareTripleChecker+Invalid, 2000 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 1949 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 20:26:20,114 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [268 Valid, 1101 Invalid, 2000 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 1949 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 20:26:20,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5736 states. [2022-03-03 20:26:20,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5736 to 5291. [2022-03-03 20:26:20,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5291 states, 5290 states have (on average 3.3824196597353495) internal successors, (17893), 5290 states have internal predecessors, (17893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:20,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5291 states to 5291 states and 17893 transitions. [2022-03-03 20:26:20,183 INFO L78 Accepts]: Start accepts. Automaton has 5291 states and 17893 transitions. Word has length 39 [2022-03-03 20:26:20,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:26:20,183 INFO L470 AbstractCegarLoop]: Abstraction has 5291 states and 17893 transitions. [2022-03-03 20:26:20,183 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:20,183 INFO L276 IsEmpty]: Start isEmpty. Operand 5291 states and 17893 transitions. [2022-03-03 20:26:20,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:26:20,189 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:26:20,189 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:26:20,189 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable333 [2022-03-03 20:26:20,189 INFO L402 AbstractCegarLoop]: === Iteration 335 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:26:20,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:26:20,190 INFO L85 PathProgramCache]: Analyzing trace with hash 1501508558, now seen corresponding path program 335 times [2022-03-03 20:26:20,190 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:26:20,190 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093287852] [2022-03-03 20:26:20,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:26:20,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:26:20,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:26:20,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:26:20,333 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:26:20,333 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093287852] [2022-03-03 20:26:20,333 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093287852] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:26:20,333 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:26:20,333 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:26:20,333 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439624020] [2022-03-03 20:26:20,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:26:20,333 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:26:20,333 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:26:20,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:26:20,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:26:20,334 INFO L87 Difference]: Start difference. First operand 5291 states and 17893 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:21,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:26:21,314 INFO L93 Difference]: Finished difference Result 5775 states and 19228 transitions. [2022-03-03 20:26:21,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-03-03 20:26:21,315 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:26:21,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:26:21,325 INFO L225 Difference]: With dead ends: 5775 [2022-03-03 20:26:21,325 INFO L226 Difference]: Without dead ends: 5718 [2022-03-03 20:26:21,325 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 713 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=285, Invalid=2795, Unknown=0, NotChecked=0, Total=3080 [2022-03-03 20:26:21,325 INFO L933 BasicCegarLoop]: 112 mSDtfsCounter, 261 mSDsluCounter, 1372 mSDsCounter, 0 mSdLazyCounter, 1983 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 1122 SdHoareTripleChecker+Invalid, 2039 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1983 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:26:21,325 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [261 Valid, 1122 Invalid, 2039 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1983 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:26:21,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5718 states. [2022-03-03 20:26:21,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5718 to 5283. [2022-03-03 20:26:21,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5283 states, 5282 states have (on average 3.3839454751987885) internal successors, (17874), 5282 states have internal predecessors, (17874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:21,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5283 states to 5283 states and 17874 transitions. [2022-03-03 20:26:21,392 INFO L78 Accepts]: Start accepts. Automaton has 5283 states and 17874 transitions. Word has length 39 [2022-03-03 20:26:21,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:26:21,392 INFO L470 AbstractCegarLoop]: Abstraction has 5283 states and 17874 transitions. [2022-03-03 20:26:21,392 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:21,392 INFO L276 IsEmpty]: Start isEmpty. Operand 5283 states and 17874 transitions. [2022-03-03 20:26:21,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:26:21,399 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:26:21,399 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:26:21,399 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable334 [2022-03-03 20:26:21,399 INFO L402 AbstractCegarLoop]: === Iteration 336 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:26:21,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:26:21,400 INFO L85 PathProgramCache]: Analyzing trace with hash -2052727112, now seen corresponding path program 336 times [2022-03-03 20:26:21,400 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:26:21,400 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630650302] [2022-03-03 20:26:21,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:26:21,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:26:21,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:26:21,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:26:21,542 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:26:21,542 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630650302] [2022-03-03 20:26:21,542 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630650302] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:26:21,542 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:26:21,542 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:26:21,542 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637630114] [2022-03-03 20:26:21,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:26:21,542 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:26:21,542 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:26:21,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:26:21,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:26:21,543 INFO L87 Difference]: Start difference. First operand 5283 states and 17874 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:22,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:26:22,423 INFO L93 Difference]: Finished difference Result 5706 states and 19073 transitions. [2022-03-03 20:26:22,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-03-03 20:26:22,423 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:26:22,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:26:22,433 INFO L225 Difference]: With dead ends: 5706 [2022-03-03 20:26:22,433 INFO L226 Difference]: Without dead ends: 5663 [2022-03-03 20:26:22,434 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 637 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=272, Invalid=2590, Unknown=0, NotChecked=0, Total=2862 [2022-03-03 20:26:22,434 INFO L933 BasicCegarLoop]: 112 mSDtfsCounter, 252 mSDsluCounter, 1375 mSDsCounter, 0 mSdLazyCounter, 1886 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 1152 SdHoareTripleChecker+Invalid, 1938 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 1886 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 20:26:22,434 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [252 Valid, 1152 Invalid, 1938 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 1886 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 20:26:22,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5663 states. [2022-03-03 20:26:22,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5663 to 5279. [2022-03-03 20:26:22,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5279 states, 5278 states have (on average 3.3846153846153846) internal successors, (17864), 5278 states have internal predecessors, (17864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:22,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5279 states to 5279 states and 17864 transitions. [2022-03-03 20:26:22,501 INFO L78 Accepts]: Start accepts. Automaton has 5279 states and 17864 transitions. Word has length 39 [2022-03-03 20:26:22,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:26:22,501 INFO L470 AbstractCegarLoop]: Abstraction has 5279 states and 17864 transitions. [2022-03-03 20:26:22,501 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:22,501 INFO L276 IsEmpty]: Start isEmpty. Operand 5279 states and 17864 transitions. [2022-03-03 20:26:22,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:26:22,508 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:26:22,508 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:26:22,508 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable335 [2022-03-03 20:26:22,508 INFO L402 AbstractCegarLoop]: === Iteration 337 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:26:22,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:26:22,509 INFO L85 PathProgramCache]: Analyzing trace with hash -215969622, now seen corresponding path program 337 times [2022-03-03 20:26:22,509 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:26:22,509 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71688538] [2022-03-03 20:26:22,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:26:22,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:26:22,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:26:22,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:26:22,652 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:26:22,652 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71688538] [2022-03-03 20:26:22,652 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71688538] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:26:22,652 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:26:22,652 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:26:22,652 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199045229] [2022-03-03 20:26:22,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:26:22,652 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:26:22,652 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:26:22,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:26:22,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:26:22,653 INFO L87 Difference]: Start difference. First operand 5279 states and 17864 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:23,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:26:23,576 INFO L93 Difference]: Finished difference Result 5704 states and 19064 transitions. [2022-03-03 20:26:23,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-03-03 20:26:23,577 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:26:23,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:26:23,586 INFO L225 Difference]: With dead ends: 5704 [2022-03-03 20:26:23,587 INFO L226 Difference]: Without dead ends: 5643 [2022-03-03 20:26:23,587 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 639 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=269, Invalid=2593, Unknown=0, NotChecked=0, Total=2862 [2022-03-03 20:26:23,587 INFO L933 BasicCegarLoop]: 113 mSDtfsCounter, 247 mSDsluCounter, 1392 mSDsCounter, 0 mSdLazyCounter, 1971 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 1135 SdHoareTripleChecker+Invalid, 2019 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 1971 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 20:26:23,587 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [247 Valid, 1135 Invalid, 2019 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 1971 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 20:26:23,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5643 states. [2022-03-03 20:26:23,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5643 to 5267. [2022-03-03 20:26:23,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5267 states, 5266 states have (on average 3.387580706418534) internal successors, (17839), 5266 states have internal predecessors, (17839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:23,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5267 states to 5267 states and 17839 transitions. [2022-03-03 20:26:23,654 INFO L78 Accepts]: Start accepts. Automaton has 5267 states and 17839 transitions. Word has length 39 [2022-03-03 20:26:23,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:26:23,654 INFO L470 AbstractCegarLoop]: Abstraction has 5267 states and 17839 transitions. [2022-03-03 20:26:23,654 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:23,654 INFO L276 IsEmpty]: Start isEmpty. Operand 5267 states and 17839 transitions. [2022-03-03 20:26:23,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:26:23,661 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:26:23,661 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:26:23,661 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable336 [2022-03-03 20:26:23,661 INFO L402 AbstractCegarLoop]: === Iteration 338 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:26:23,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:26:23,661 INFO L85 PathProgramCache]: Analyzing trace with hash -908934758, now seen corresponding path program 338 times [2022-03-03 20:26:23,661 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:26:23,661 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380133875] [2022-03-03 20:26:23,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:26:23,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:26:23,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:26:23,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:26:23,806 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:26:23,806 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380133875] [2022-03-03 20:26:23,806 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380133875] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:26:23,806 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:26:23,806 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:26:23,806 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842850036] [2022-03-03 20:26:23,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:26:23,806 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:26:23,806 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:26:23,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:26:23,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:26:23,807 INFO L87 Difference]: Start difference. First operand 5267 states and 17839 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:24,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:26:24,537 INFO L93 Difference]: Finished difference Result 5556 states and 18699 transitions. [2022-03-03 20:26:24,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 20:26:24,537 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:26:24,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:26:24,547 INFO L225 Difference]: With dead ends: 5556 [2022-03-03 20:26:24,547 INFO L226 Difference]: Without dead ends: 5493 [2022-03-03 20:26:24,547 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 389 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=202, Invalid=1868, Unknown=0, NotChecked=0, Total=2070 [2022-03-03 20:26:24,548 INFO L933 BasicCegarLoop]: 114 mSDtfsCounter, 207 mSDsluCounter, 1263 mSDsCounter, 0 mSdLazyCounter, 1749 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 1094 SdHoareTripleChecker+Invalid, 1788 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1749 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 20:26:24,548 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [207 Valid, 1094 Invalid, 1788 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1749 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 20:26:24,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5493 states. [2022-03-03 20:26:24,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5493 to 5299. [2022-03-03 20:26:24,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5299 states, 5298 states have (on average 3.3829747074367686) internal successors, (17923), 5298 states have internal predecessors, (17923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:24,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5299 states to 5299 states and 17923 transitions. [2022-03-03 20:26:24,613 INFO L78 Accepts]: Start accepts. Automaton has 5299 states and 17923 transitions. Word has length 39 [2022-03-03 20:26:24,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:26:24,613 INFO L470 AbstractCegarLoop]: Abstraction has 5299 states and 17923 transitions. [2022-03-03 20:26:24,613 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:24,613 INFO L276 IsEmpty]: Start isEmpty. Operand 5299 states and 17923 transitions. [2022-03-03 20:26:24,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:26:24,620 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:26:24,620 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:26:24,620 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable337 [2022-03-03 20:26:24,620 INFO L402 AbstractCegarLoop]: === Iteration 339 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:26:24,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:26:24,620 INFO L85 PathProgramCache]: Analyzing trace with hash -1438835206, now seen corresponding path program 339 times [2022-03-03 20:26:24,620 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:26:24,620 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190440553] [2022-03-03 20:26:24,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:26:24,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:26:24,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:26:24,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:26:24,764 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:26:24,764 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190440553] [2022-03-03 20:26:24,764 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190440553] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:26:24,764 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:26:24,764 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:26:24,764 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558880876] [2022-03-03 20:26:24,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:26:24,765 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:26:24,765 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:26:24,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:26:24,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:26:24,765 INFO L87 Difference]: Start difference. First operand 5299 states and 17923 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:25,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:26:25,486 INFO L93 Difference]: Finished difference Result 5580 states and 18759 transitions. [2022-03-03 20:26:25,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 20:26:25,486 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:26:25,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:26:25,535 INFO L225 Difference]: With dead ends: 5580 [2022-03-03 20:26:25,535 INFO L226 Difference]: Without dead ends: 5457 [2022-03-03 20:26:25,535 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 415 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=210, Invalid=1952, Unknown=0, NotChecked=0, Total=2162 [2022-03-03 20:26:25,536 INFO L933 BasicCegarLoop]: 119 mSDtfsCounter, 205 mSDsluCounter, 1322 mSDsCounter, 0 mSdLazyCounter, 1758 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 1159 SdHoareTripleChecker+Invalid, 1794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1758 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 20:26:25,536 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [205 Valid, 1159 Invalid, 1794 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1758 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 20:26:25,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5457 states. [2022-03-03 20:26:25,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5457 to 5267. [2022-03-03 20:26:25,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5267 states, 5266 states have (on average 3.3845423471325486) internal successors, (17823), 5266 states have internal predecessors, (17823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:25,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5267 states to 5267 states and 17823 transitions. [2022-03-03 20:26:25,598 INFO L78 Accepts]: Start accepts. Automaton has 5267 states and 17823 transitions. Word has length 39 [2022-03-03 20:26:25,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:26:25,598 INFO L470 AbstractCegarLoop]: Abstraction has 5267 states and 17823 transitions. [2022-03-03 20:26:25,598 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:25,598 INFO L276 IsEmpty]: Start isEmpty. Operand 5267 states and 17823 transitions. [2022-03-03 20:26:25,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:26:25,604 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:26:25,605 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:26:25,605 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable338 [2022-03-03 20:26:25,605 INFO L402 AbstractCegarLoop]: === Iteration 340 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:26:25,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:26:25,605 INFO L85 PathProgramCache]: Analyzing trace with hash -1941297604, now seen corresponding path program 340 times [2022-03-03 20:26:25,605 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:26:25,605 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539439953] [2022-03-03 20:26:25,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:26:25,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:26:25,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:26:25,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:26:25,748 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:26:25,748 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539439953] [2022-03-03 20:26:25,748 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539439953] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:26:25,748 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:26:25,748 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:26:25,748 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121877022] [2022-03-03 20:26:25,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:26:25,748 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:26:25,748 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:26:25,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:26:25,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:26:25,748 INFO L87 Difference]: Start difference. First operand 5267 states and 17823 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:26,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:26:26,705 INFO L93 Difference]: Finished difference Result 5540 states and 18645 transitions. [2022-03-03 20:26:26,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 20:26:26,705 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:26:26,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:26:26,716 INFO L225 Difference]: With dead ends: 5540 [2022-03-03 20:26:26,716 INFO L226 Difference]: Without dead ends: 5477 [2022-03-03 20:26:26,717 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 419 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=210, Invalid=1952, Unknown=0, NotChecked=0, Total=2162 [2022-03-03 20:26:26,717 INFO L933 BasicCegarLoop]: 111 mSDtfsCounter, 212 mSDsluCounter, 1267 mSDsCounter, 0 mSdLazyCounter, 1756 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 1082 SdHoareTripleChecker+Invalid, 1795 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1756 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:26:26,717 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [212 Valid, 1082 Invalid, 1795 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1756 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:26:26,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5477 states. [2022-03-03 20:26:26,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5477 to 5267. [2022-03-03 20:26:26,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5267 states, 5266 states have (on average 3.383782757311052) internal successors, (17819), 5266 states have internal predecessors, (17819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:26,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5267 states to 5267 states and 17819 transitions. [2022-03-03 20:26:26,794 INFO L78 Accepts]: Start accepts. Automaton has 5267 states and 17819 transitions. Word has length 39 [2022-03-03 20:26:26,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:26:26,795 INFO L470 AbstractCegarLoop]: Abstraction has 5267 states and 17819 transitions. [2022-03-03 20:26:26,795 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:26,795 INFO L276 IsEmpty]: Start isEmpty. Operand 5267 states and 17819 transitions. [2022-03-03 20:26:26,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:26:26,802 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:26:26,802 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:26:26,802 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable339 [2022-03-03 20:26:26,802 INFO L402 AbstractCegarLoop]: === Iteration 341 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:26:26,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:26:26,803 INFO L85 PathProgramCache]: Analyzing trace with hash 2108177594, now seen corresponding path program 341 times [2022-03-03 20:26:26,803 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:26:26,803 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776562228] [2022-03-03 20:26:26,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:26:26,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:26:26,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:26:27,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:26:27,039 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:26:27,039 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776562228] [2022-03-03 20:26:27,039 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776562228] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:26:27,040 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:26:27,040 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:26:27,040 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445364423] [2022-03-03 20:26:27,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:26:27,040 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:26:27,040 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:26:27,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:26:27,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:26:27,040 INFO L87 Difference]: Start difference. First operand 5267 states and 17819 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:27,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:26:27,831 INFO L93 Difference]: Finished difference Result 5557 states and 18671 transitions. [2022-03-03 20:26:27,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 20:26:27,831 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:26:27,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:26:27,841 INFO L225 Difference]: With dead ends: 5557 [2022-03-03 20:26:27,841 INFO L226 Difference]: Without dead ends: 5514 [2022-03-03 20:26:27,841 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 392 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=197, Invalid=1873, Unknown=0, NotChecked=0, Total=2070 [2022-03-03 20:26:27,841 INFO L933 BasicCegarLoop]: 108 mSDtfsCounter, 220 mSDsluCounter, 1276 mSDsCounter, 0 mSdLazyCounter, 1778 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 1061 SdHoareTripleChecker+Invalid, 1809 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1778 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 20:26:27,842 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [220 Valid, 1061 Invalid, 1809 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1778 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 20:26:27,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5514 states. [2022-03-03 20:26:27,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5514 to 5273. [2022-03-03 20:26:27,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5273 states, 5272 states have (on average 3.3823975720789075) internal successors, (17832), 5272 states have internal predecessors, (17832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:27,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5273 states to 5273 states and 17832 transitions. [2022-03-03 20:26:27,932 INFO L78 Accepts]: Start accepts. Automaton has 5273 states and 17832 transitions. Word has length 39 [2022-03-03 20:26:27,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:26:27,932 INFO L470 AbstractCegarLoop]: Abstraction has 5273 states and 17832 transitions. [2022-03-03 20:26:27,932 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:27,932 INFO L276 IsEmpty]: Start isEmpty. Operand 5273 states and 17832 transitions. [2022-03-03 20:26:27,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:26:27,939 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:26:27,939 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:26:27,939 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable340 [2022-03-03 20:26:27,939 INFO L402 AbstractCegarLoop]: === Iteration 342 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:26:27,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:26:27,940 INFO L85 PathProgramCache]: Analyzing trace with hash -1357258532, now seen corresponding path program 342 times [2022-03-03 20:26:27,940 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:26:27,940 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175072943] [2022-03-03 20:26:27,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:26:27,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:26:27,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:26:28,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:26:28,087 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:26:28,087 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175072943] [2022-03-03 20:26:28,087 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175072943] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:26:28,087 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:26:28,087 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:26:28,087 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041894917] [2022-03-03 20:26:28,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:26:28,087 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:26:28,087 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:26:28,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:26:28,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:26:28,087 INFO L87 Difference]: Start difference. First operand 5273 states and 17832 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:28,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:26:28,779 INFO L93 Difference]: Finished difference Result 5512 states and 18567 transitions. [2022-03-03 20:26:28,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-03 20:26:28,779 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:26:28,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:26:28,789 INFO L225 Difference]: With dead ends: 5512 [2022-03-03 20:26:28,789 INFO L226 Difference]: Without dead ends: 5449 [2022-03-03 20:26:28,789 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 365 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=188, Invalid=1792, Unknown=0, NotChecked=0, Total=1980 [2022-03-03 20:26:28,789 INFO L933 BasicCegarLoop]: 109 mSDtfsCounter, 198 mSDsluCounter, 1272 mSDsCounter, 0 mSdLazyCounter, 1771 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 1061 SdHoareTripleChecker+Invalid, 1801 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1771 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 20:26:28,789 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [198 Valid, 1061 Invalid, 1801 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1771 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 20:26:28,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5449 states. [2022-03-03 20:26:28,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5449 to 5255. [2022-03-03 20:26:28,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5255 states, 5254 states have (on average 3.3858012942519986) internal successors, (17789), 5254 states have internal predecessors, (17789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:28,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5255 states to 5255 states and 17789 transitions. [2022-03-03 20:26:28,854 INFO L78 Accepts]: Start accepts. Automaton has 5255 states and 17789 transitions. Word has length 39 [2022-03-03 20:26:28,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:26:28,854 INFO L470 AbstractCegarLoop]: Abstraction has 5255 states and 17789 transitions. [2022-03-03 20:26:28,854 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:28,854 INFO L276 IsEmpty]: Start isEmpty. Operand 5255 states and 17789 transitions. [2022-03-03 20:26:28,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:26:28,861 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:26:28,861 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:26:28,861 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable341 [2022-03-03 20:26:28,861 INFO L402 AbstractCegarLoop]: === Iteration 343 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:26:28,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:26:28,861 INFO L85 PathProgramCache]: Analyzing trace with hash 924472956, now seen corresponding path program 343 times [2022-03-03 20:26:28,861 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:26:28,861 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025177616] [2022-03-03 20:26:28,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:26:28,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:26:28,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:26:29,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:26:29,006 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:26:29,006 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025177616] [2022-03-03 20:26:29,006 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025177616] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:26:29,006 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:26:29,006 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:26:29,006 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55286571] [2022-03-03 20:26:29,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:26:29,006 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:26:29,006 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:26:29,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:26:29,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:26:29,007 INFO L87 Difference]: Start difference. First operand 5255 states and 17789 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:29,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:26:29,780 INFO L93 Difference]: Finished difference Result 5575 states and 18724 transitions. [2022-03-03 20:26:29,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-03-03 20:26:29,780 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:26:29,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:26:29,791 INFO L225 Difference]: With dead ends: 5575 [2022-03-03 20:26:29,791 INFO L226 Difference]: Without dead ends: 5520 [2022-03-03 20:26:29,791 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 509 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=234, Invalid=2216, Unknown=0, NotChecked=0, Total=2450 [2022-03-03 20:26:29,791 INFO L933 BasicCegarLoop]: 109 mSDtfsCounter, 242 mSDsluCounter, 1271 mSDsCounter, 0 mSdLazyCounter, 1789 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 1069 SdHoareTripleChecker+Invalid, 1833 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 1789 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 20:26:29,791 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [242 Valid, 1069 Invalid, 1833 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 1789 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 20:26:29,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5520 states. [2022-03-03 20:26:29,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5520 to 5257. [2022-03-03 20:26:29,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5257 states, 5256 states have (on average 3.3854642313546424) internal successors, (17794), 5256 states have internal predecessors, (17794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:29,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5257 states to 5257 states and 17794 transitions. [2022-03-03 20:26:29,856 INFO L78 Accepts]: Start accepts. Automaton has 5257 states and 17794 transitions. Word has length 39 [2022-03-03 20:26:29,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:26:29,856 INFO L470 AbstractCegarLoop]: Abstraction has 5257 states and 17794 transitions. [2022-03-03 20:26:29,856 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:29,856 INFO L276 IsEmpty]: Start isEmpty. Operand 5257 states and 17794 transitions. [2022-03-03 20:26:29,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:26:29,880 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:26:29,880 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:26:29,880 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable342 [2022-03-03 20:26:29,880 INFO L402 AbstractCegarLoop]: === Iteration 344 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:26:29,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:26:29,881 INFO L85 PathProgramCache]: Analyzing trace with hash -2033436326, now seen corresponding path program 344 times [2022-03-03 20:26:29,881 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:26:29,881 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647902691] [2022-03-03 20:26:29,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:26:29,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:26:29,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:26:30,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:26:30,024 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:26:30,024 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647902691] [2022-03-03 20:26:30,024 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647902691] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:26:30,024 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:26:30,024 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:26:30,024 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033410139] [2022-03-03 20:26:30,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:26:30,024 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:26:30,024 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:26:30,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:26:30,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:26:30,024 INFO L87 Difference]: Start difference. First operand 5257 states and 17794 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:30,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:26:30,758 INFO L93 Difference]: Finished difference Result 5551 states and 18654 transitions. [2022-03-03 20:26:30,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-03-03 20:26:30,758 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:26:30,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:26:30,768 INFO L225 Difference]: With dead ends: 5551 [2022-03-03 20:26:30,768 INFO L226 Difference]: Without dead ends: 5508 [2022-03-03 20:26:30,769 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 450 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=213, Invalid=2043, Unknown=0, NotChecked=0, Total=2256 [2022-03-03 20:26:30,769 INFO L933 BasicCegarLoop]: 107 mSDtfsCounter, 230 mSDsluCounter, 1250 mSDsCounter, 0 mSdLazyCounter, 1757 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 1050 SdHoareTripleChecker+Invalid, 1794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1757 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 20:26:30,769 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [230 Valid, 1050 Invalid, 1794 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1757 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 20:26:30,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5508 states. [2022-03-03 20:26:30,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5508 to 5263. [2022-03-03 20:26:30,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5263 states, 5262 states have (on average 3.3840744963892058) internal successors, (17807), 5262 states have internal predecessors, (17807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:30,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5263 states to 5263 states and 17807 transitions. [2022-03-03 20:26:30,835 INFO L78 Accepts]: Start accepts. Automaton has 5263 states and 17807 transitions. Word has length 39 [2022-03-03 20:26:30,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:26:30,835 INFO L470 AbstractCegarLoop]: Abstraction has 5263 states and 17807 transitions. [2022-03-03 20:26:30,835 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:30,835 INFO L276 IsEmpty]: Start isEmpty. Operand 5263 states and 17807 transitions. [2022-03-03 20:26:30,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:26:30,842 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:26:30,842 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:26:30,842 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable343 [2022-03-03 20:26:30,842 INFO L402 AbstractCegarLoop]: === Iteration 345 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:26:30,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:26:30,843 INFO L85 PathProgramCache]: Analyzing trace with hash 1990111420, now seen corresponding path program 345 times [2022-03-03 20:26:30,843 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:26:30,843 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839883645] [2022-03-03 20:26:30,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:26:30,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:26:30,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:26:30,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:26:30,996 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:26:30,996 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839883645] [2022-03-03 20:26:30,996 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839883645] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:26:30,996 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:26:30,996 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:26:30,996 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887437109] [2022-03-03 20:26:30,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:26:30,996 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:26:30,996 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:26:30,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:26:30,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:26:30,997 INFO L87 Difference]: Start difference. First operand 5263 states and 17807 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:31,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:26:31,710 INFO L93 Difference]: Finished difference Result 5506 states and 18550 transitions. [2022-03-03 20:26:31,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 20:26:31,710 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:26:31,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:26:31,720 INFO L225 Difference]: With dead ends: 5506 [2022-03-03 20:26:31,720 INFO L226 Difference]: Without dead ends: 5445 [2022-03-03 20:26:31,721 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 392 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=197, Invalid=1873, Unknown=0, NotChecked=0, Total=2070 [2022-03-03 20:26:31,721 INFO L933 BasicCegarLoop]: 107 mSDtfsCounter, 205 mSDsluCounter, 1237 mSDsCounter, 0 mSdLazyCounter, 1739 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 1040 SdHoareTripleChecker+Invalid, 1776 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1739 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 20:26:31,721 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [205 Valid, 1040 Invalid, 1776 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1739 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 20:26:31,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5445 states. [2022-03-03 20:26:31,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5445 to 5251. [2022-03-03 20:26:31,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5251 states, 5250 states have (on average 3.3864761904761904) internal successors, (17779), 5250 states have internal predecessors, (17779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:31,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5251 states to 5251 states and 17779 transitions. [2022-03-03 20:26:31,788 INFO L78 Accepts]: Start accepts. Automaton has 5251 states and 17779 transitions. Word has length 39 [2022-03-03 20:26:31,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:26:31,788 INFO L470 AbstractCegarLoop]: Abstraction has 5251 states and 17779 transitions. [2022-03-03 20:26:31,788 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:31,788 INFO L276 IsEmpty]: Start isEmpty. Operand 5251 states and 17779 transitions. [2022-03-03 20:26:31,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:26:31,795 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:26:31,795 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:26:31,795 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable344 [2022-03-03 20:26:31,796 INFO L402 AbstractCegarLoop]: === Iteration 346 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:26:31,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:26:31,796 INFO L85 PathProgramCache]: Analyzing trace with hash 1500706234, now seen corresponding path program 346 times [2022-03-03 20:26:31,796 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:26:31,796 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389222930] [2022-03-03 20:26:31,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:26:31,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:26:31,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:26:31,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:26:31,941 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:26:31,941 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389222930] [2022-03-03 20:26:31,941 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389222930] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:26:31,941 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:26:31,941 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:26:31,941 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610753854] [2022-03-03 20:26:31,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:26:31,941 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:26:31,941 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:26:31,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:26:31,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:26:31,942 INFO L87 Difference]: Start difference. First operand 5251 states and 17779 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:32,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:26:32,694 INFO L93 Difference]: Finished difference Result 5548 states and 18675 transitions. [2022-03-03 20:26:32,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 20:26:32,694 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:26:32,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:26:32,705 INFO L225 Difference]: With dead ends: 5548 [2022-03-03 20:26:32,705 INFO L226 Difference]: Without dead ends: 5457 [2022-03-03 20:26:32,705 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 443 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=218, Invalid=2038, Unknown=0, NotChecked=0, Total=2256 [2022-03-03 20:26:32,705 INFO L933 BasicCegarLoop]: 120 mSDtfsCounter, 215 mSDsluCounter, 1335 mSDsCounter, 0 mSdLazyCounter, 1777 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 1173 SdHoareTripleChecker+Invalid, 1814 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1777 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 20:26:32,706 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [215 Valid, 1173 Invalid, 1814 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1777 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 20:26:32,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5457 states. [2022-03-03 20:26:32,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5457 to 5257. [2022-03-03 20:26:32,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5257 states, 5256 states have (on average 3.3854642313546424) internal successors, (17794), 5256 states have internal predecessors, (17794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:32,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5257 states to 5257 states and 17794 transitions. [2022-03-03 20:26:32,776 INFO L78 Accepts]: Start accepts. Automaton has 5257 states and 17794 transitions. Word has length 39 [2022-03-03 20:26:32,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:26:32,776 INFO L470 AbstractCegarLoop]: Abstraction has 5257 states and 17794 transitions. [2022-03-03 20:26:32,776 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:32,776 INFO L276 IsEmpty]: Start isEmpty. Operand 5257 states and 17794 transitions. [2022-03-03 20:26:32,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:26:32,783 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:26:32,783 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:26:32,783 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable345 [2022-03-03 20:26:32,783 INFO L402 AbstractCegarLoop]: === Iteration 347 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:26:32,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:26:32,784 INFO L85 PathProgramCache]: Analyzing trace with hash -1503716644, now seen corresponding path program 347 times [2022-03-03 20:26:32,784 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:26:32,784 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663872185] [2022-03-03 20:26:32,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:26:32,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:26:32,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:26:32,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:26:32,932 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:26:32,932 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663872185] [2022-03-03 20:26:32,933 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663872185] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:26:32,933 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:26:32,933 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:26:32,933 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44085348] [2022-03-03 20:26:32,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:26:32,933 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:26:32,933 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:26:32,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:26:32,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:26:32,933 INFO L87 Difference]: Start difference. First operand 5257 states and 17794 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:33,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:26:33,754 INFO L93 Difference]: Finished difference Result 5565 states and 18683 transitions. [2022-03-03 20:26:33,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-03 20:26:33,754 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:26:33,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:26:33,765 INFO L225 Difference]: With dead ends: 5565 [2022-03-03 20:26:33,765 INFO L226 Difference]: Without dead ends: 5510 [2022-03-03 20:26:33,765 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 475 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=226, Invalid=2126, Unknown=0, NotChecked=0, Total=2352 [2022-03-03 20:26:33,765 INFO L933 BasicCegarLoop]: 113 mSDtfsCounter, 229 mSDsluCounter, 1323 mSDsCounter, 0 mSdLazyCounter, 1796 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 1125 SdHoareTripleChecker+Invalid, 1835 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1796 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 20:26:33,765 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [229 Valid, 1125 Invalid, 1835 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1796 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 20:26:33,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5510 states. [2022-03-03 20:26:33,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5510 to 5259. [2022-03-03 20:26:33,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5259 states, 5258 states have (on average 3.3851274248763787) internal successors, (17799), 5258 states have internal predecessors, (17799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:33,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5259 states to 5259 states and 17799 transitions. [2022-03-03 20:26:33,831 INFO L78 Accepts]: Start accepts. Automaton has 5259 states and 17799 transitions. Word has length 39 [2022-03-03 20:26:33,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:26:33,831 INFO L470 AbstractCegarLoop]: Abstraction has 5259 states and 17799 transitions. [2022-03-03 20:26:33,831 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:33,831 INFO L276 IsEmpty]: Start isEmpty. Operand 5259 states and 17799 transitions. [2022-03-03 20:26:33,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:26:33,838 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:26:33,838 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:26:33,838 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable346 [2022-03-03 20:26:33,838 INFO L402 AbstractCegarLoop]: === Iteration 348 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:26:33,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:26:33,838 INFO L85 PathProgramCache]: Analyzing trace with hash -166658630, now seen corresponding path program 348 times [2022-03-03 20:26:33,838 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:26:33,838 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527715281] [2022-03-03 20:26:33,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:26:33,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:26:33,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:26:34,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:26:34,050 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:26:34,050 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527715281] [2022-03-03 20:26:34,050 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527715281] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:26:34,050 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:26:34,050 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:26:34,050 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942605332] [2022-03-03 20:26:34,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:26:34,050 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:26:34,050 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:26:34,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:26:34,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:26:34,051 INFO L87 Difference]: Start difference. First operand 5259 states and 17799 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:34,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:26:34,989 INFO L93 Difference]: Finished difference Result 5541 states and 18613 transitions. [2022-03-03 20:26:34,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 20:26:34,989 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:26:34,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:26:34,999 INFO L225 Difference]: With dead ends: 5541 [2022-03-03 20:26:34,999 INFO L226 Difference]: Without dead ends: 5498 [2022-03-03 20:26:35,000 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 418 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=204, Invalid=1958, Unknown=0, NotChecked=0, Total=2162 [2022-03-03 20:26:35,000 INFO L933 BasicCegarLoop]: 110 mSDtfsCounter, 217 mSDsluCounter, 1291 mSDsCounter, 0 mSdLazyCounter, 1751 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 1095 SdHoareTripleChecker+Invalid, 1784 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1751 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:26:35,000 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [217 Valid, 1095 Invalid, 1784 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1751 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:26:35,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5498 states. [2022-03-03 20:26:35,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5498 to 5265. [2022-03-03 20:26:35,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5265 states, 5264 states have (on average 3.3837386018237083) internal successors, (17812), 5264 states have internal predecessors, (17812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:35,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5265 states to 5265 states and 17812 transitions. [2022-03-03 20:26:35,067 INFO L78 Accepts]: Start accepts. Automaton has 5265 states and 17812 transitions. Word has length 39 [2022-03-03 20:26:35,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:26:35,068 INFO L470 AbstractCegarLoop]: Abstraction has 5265 states and 17812 transitions. [2022-03-03 20:26:35,068 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:35,068 INFO L276 IsEmpty]: Start isEmpty. Operand 5265 states and 17812 transitions. [2022-03-03 20:26:35,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:26:35,075 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:26:35,075 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:26:35,075 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable347 [2022-03-03 20:26:35,075 INFO L402 AbstractCegarLoop]: === Iteration 349 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:26:35,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:26:35,075 INFO L85 PathProgramCache]: Analyzing trace with hash -438078180, now seen corresponding path program 349 times [2022-03-03 20:26:35,075 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:26:35,075 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301574768] [2022-03-03 20:26:35,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:26:35,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:26:35,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:26:35,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:26:35,234 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:26:35,234 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301574768] [2022-03-03 20:26:35,234 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301574768] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:26:35,234 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:26:35,234 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:26:35,234 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382111787] [2022-03-03 20:26:35,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:26:35,234 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:26:35,234 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:26:35,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:26:35,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:26:35,234 INFO L87 Difference]: Start difference. First operand 5265 states and 17812 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:35,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:26:35,962 INFO L93 Difference]: Finished difference Result 5496 states and 18509 transitions. [2022-03-03 20:26:35,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 20:26:35,962 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:26:35,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:26:35,972 INFO L225 Difference]: With dead ends: 5496 [2022-03-03 20:26:35,972 INFO L226 Difference]: Without dead ends: 5405 [2022-03-03 20:26:35,973 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 418 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=204, Invalid=1958, Unknown=0, NotChecked=0, Total=2162 [2022-03-03 20:26:35,973 INFO L933 BasicCegarLoop]: 110 mSDtfsCounter, 203 mSDsluCounter, 1275 mSDsCounter, 0 mSdLazyCounter, 1731 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 1082 SdHoareTripleChecker+Invalid, 1765 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1731 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 20:26:35,973 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [203 Valid, 1082 Invalid, 1765 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1731 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 20:26:35,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5405 states. [2022-03-03 20:26:36,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5405 to 5235. [2022-03-03 20:26:36,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5235 states, 5234 states have (on average 3.388803974016049) internal successors, (17737), 5234 states have internal predecessors, (17737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:36,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5235 states to 5235 states and 17737 transitions. [2022-03-03 20:26:36,039 INFO L78 Accepts]: Start accepts. Automaton has 5235 states and 17737 transitions. Word has length 39 [2022-03-03 20:26:36,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:26:36,039 INFO L470 AbstractCegarLoop]: Abstraction has 5235 states and 17737 transitions. [2022-03-03 20:26:36,039 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:36,040 INFO L276 IsEmpty]: Start isEmpty. Operand 5235 states and 17737 transitions. [2022-03-03 20:26:36,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:26:36,046 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:26:36,046 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:26:36,046 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable348 [2022-03-03 20:26:36,046 INFO L402 AbstractCegarLoop]: === Iteration 350 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:26:36,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:26:36,046 INFO L85 PathProgramCache]: Analyzing trace with hash -1164129526, now seen corresponding path program 350 times [2022-03-03 20:26:36,046 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:26:36,047 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44293184] [2022-03-03 20:26:36,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:26:36,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:26:36,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:26:36,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:26:36,208 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:26:36,208 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44293184] [2022-03-03 20:26:36,208 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44293184] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:26:36,208 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:26:36,208 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:26:36,208 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185056503] [2022-03-03 20:26:36,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:26:36,208 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:26:36,208 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:26:36,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:26:36,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:26:36,209 INFO L87 Difference]: Start difference. First operand 5235 states and 17737 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:37,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:26:37,471 INFO L93 Difference]: Finished difference Result 7596 states and 25341 transitions. [2022-03-03 20:26:37,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-03-03 20:26:37,471 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:26:37,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:26:37,485 INFO L225 Difference]: With dead ends: 7596 [2022-03-03 20:26:37,485 INFO L226 Difference]: Without dead ends: 7541 [2022-03-03 20:26:37,486 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1395 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=433, Invalid=4537, Unknown=0, NotChecked=0, Total=4970 [2022-03-03 20:26:37,486 INFO L933 BasicCegarLoop]: 189 mSDtfsCounter, 480 mSDsluCounter, 2138 mSDsCounter, 0 mSdLazyCounter, 2502 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 480 SdHoareTripleChecker+Valid, 2000 SdHoareTripleChecker+Invalid, 2594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 2502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:26:37,486 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [480 Valid, 2000 Invalid, 2594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 2502 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:26:37,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7541 states. [2022-03-03 20:26:37,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7541 to 5254. [2022-03-03 20:26:37,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5254 states, 5253 states have (on average 3.3893013516086046) internal successors, (17804), 5253 states have internal predecessors, (17804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:37,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5254 states to 5254 states and 17804 transitions. [2022-03-03 20:26:37,568 INFO L78 Accepts]: Start accepts. Automaton has 5254 states and 17804 transitions. Word has length 39 [2022-03-03 20:26:37,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:26:37,569 INFO L470 AbstractCegarLoop]: Abstraction has 5254 states and 17804 transitions. [2022-03-03 20:26:37,569 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:37,569 INFO L276 IsEmpty]: Start isEmpty. Operand 5254 states and 17804 transitions. [2022-03-03 20:26:37,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:26:37,576 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:26:37,576 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:26:37,576 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable349 [2022-03-03 20:26:37,576 INFO L402 AbstractCegarLoop]: === Iteration 351 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:26:37,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:26:37,576 INFO L85 PathProgramCache]: Analyzing trace with hash 8522696, now seen corresponding path program 351 times [2022-03-03 20:26:37,576 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:26:37,576 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818863803] [2022-03-03 20:26:37,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:26:37,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:26:37,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:26:37,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:26:37,719 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:26:37,719 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818863803] [2022-03-03 20:26:37,719 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818863803] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:26:37,719 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:26:37,719 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:26:37,719 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903610559] [2022-03-03 20:26:37,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:26:37,719 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:26:37,719 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:26:37,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:26:37,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:26:37,720 INFO L87 Difference]: Start difference. First operand 5254 states and 17804 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:39,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:26:39,100 INFO L93 Difference]: Finished difference Result 8366 states and 27938 transitions. [2022-03-03 20:26:39,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2022-03-03 20:26:39,100 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:26:39,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:26:39,116 INFO L225 Difference]: With dead ends: 8366 [2022-03-03 20:26:39,116 INFO L226 Difference]: Without dead ends: 8243 [2022-03-03 20:26:39,117 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1721 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=480, Invalid=5372, Unknown=0, NotChecked=0, Total=5852 [2022-03-03 20:26:39,117 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 484 mSDsluCounter, 2534 mSDsCounter, 0 mSdLazyCounter, 2871 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 484 SdHoareTripleChecker+Valid, 2433 SdHoareTripleChecker+Invalid, 2964 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 2871 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:26:39,117 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [484 Valid, 2433 Invalid, 2964 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 2871 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:26:39,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8243 states. [2022-03-03 20:26:39,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8243 to 5258. [2022-03-03 20:26:39,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5258 states, 5257 states have (on average 3.3897660262507134) internal successors, (17820), 5257 states have internal predecessors, (17820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:39,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5258 states to 5258 states and 17820 transitions. [2022-03-03 20:26:39,228 INFO L78 Accepts]: Start accepts. Automaton has 5258 states and 17820 transitions. Word has length 39 [2022-03-03 20:26:39,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:26:39,228 INFO L470 AbstractCegarLoop]: Abstraction has 5258 states and 17820 transitions. [2022-03-03 20:26:39,228 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:39,228 INFO L276 IsEmpty]: Start isEmpty. Operand 5258 states and 17820 transitions. [2022-03-03 20:26:39,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:26:39,235 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:26:39,235 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:26:39,235 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable350 [2022-03-03 20:26:39,235 INFO L402 AbstractCegarLoop]: === Iteration 352 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:26:39,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:26:39,236 INFO L85 PathProgramCache]: Analyzing trace with hash -1868880906, now seen corresponding path program 352 times [2022-03-03 20:26:39,236 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:26:39,236 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742220548] [2022-03-03 20:26:39,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:26:39,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:26:39,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:26:39,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:26:39,378 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:26:39,378 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742220548] [2022-03-03 20:26:39,378 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742220548] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:26:39,378 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:26:39,378 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:26:39,378 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240598990] [2022-03-03 20:26:39,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:26:39,378 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:26:39,378 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:26:39,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:26:39,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:26:39,379 INFO L87 Difference]: Start difference. First operand 5258 states and 17820 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:40,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:26:40,984 INFO L93 Difference]: Finished difference Result 7513 states and 25139 transitions. [2022-03-03 20:26:40,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-03-03 20:26:40,985 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:26:40,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:26:40,999 INFO L225 Difference]: With dead ends: 7513 [2022-03-03 20:26:40,999 INFO L226 Difference]: Without dead ends: 7422 [2022-03-03 20:26:41,000 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1140 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=374, Invalid=3916, Unknown=0, NotChecked=0, Total=4290 [2022-03-03 20:26:41,000 INFO L933 BasicCegarLoop]: 190 mSDtfsCounter, 450 mSDsluCounter, 2072 mSDsCounter, 0 mSdLazyCounter, 2417 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 450 SdHoareTripleChecker+Valid, 1977 SdHoareTripleChecker+Invalid, 2505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 2417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 20:26:41,000 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [450 Valid, 1977 Invalid, 2505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 2417 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 20:26:41,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7422 states. [2022-03-03 20:26:41,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7422 to 5264. [2022-03-03 20:26:41,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5264 states, 5263 states have (on average 3.3876116283488504) internal successors, (17829), 5263 states have internal predecessors, (17829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:41,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5264 states to 5264 states and 17829 transitions. [2022-03-03 20:26:41,086 INFO L78 Accepts]: Start accepts. Automaton has 5264 states and 17829 transitions. Word has length 39 [2022-03-03 20:26:41,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:26:41,086 INFO L470 AbstractCegarLoop]: Abstraction has 5264 states and 17829 transitions. [2022-03-03 20:26:41,086 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:41,086 INFO L276 IsEmpty]: Start isEmpty. Operand 5264 states and 17829 transitions. [2022-03-03 20:26:41,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:26:41,093 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:26:41,093 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:26:41,094 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable351 [2022-03-03 20:26:41,094 INFO L402 AbstractCegarLoop]: === Iteration 353 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:26:41,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:26:41,094 INFO L85 PathProgramCache]: Analyzing trace with hash 923604184, now seen corresponding path program 353 times [2022-03-03 20:26:41,094 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:26:41,094 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374227836] [2022-03-03 20:26:41,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:26:41,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:26:41,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:26:41,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:26:41,318 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:26:41,318 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374227836] [2022-03-03 20:26:41,318 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374227836] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:26:41,318 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:26:41,318 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:26:41,318 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65076973] [2022-03-03 20:26:41,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:26:41,319 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:26:41,319 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:26:41,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:26:41,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:26:41,319 INFO L87 Difference]: Start difference. First operand 5264 states and 17829 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:42,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:26:42,907 INFO L93 Difference]: Finished difference Result 8372 states and 28036 transitions. [2022-03-03 20:26:42,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-03-03 20:26:42,907 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:26:42,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:26:42,922 INFO L225 Difference]: With dead ends: 8372 [2022-03-03 20:26:42,922 INFO L226 Difference]: Without dead ends: 8272 [2022-03-03 20:26:42,922 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1384 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=409, Invalid=4561, Unknown=0, NotChecked=0, Total=4970 [2022-03-03 20:26:42,923 INFO L933 BasicCegarLoop]: 238 mSDtfsCounter, 457 mSDsluCounter, 2555 mSDsCounter, 0 mSdLazyCounter, 2948 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 457 SdHoareTripleChecker+Valid, 2496 SdHoareTripleChecker+Invalid, 3040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 2948 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 20:26:42,923 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [457 Valid, 2496 Invalid, 3040 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 2948 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 20:26:42,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8272 states. [2022-03-03 20:26:42,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8272 to 5252. [2022-03-03 20:26:42,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5252 states, 5251 states have (on average 3.3877356693963057) internal successors, (17789), 5251 states have internal predecessors, (17789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:43,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5252 states to 5252 states and 17789 transitions. [2022-03-03 20:26:43,007 INFO L78 Accepts]: Start accepts. Automaton has 5252 states and 17789 transitions. Word has length 39 [2022-03-03 20:26:43,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:26:43,008 INFO L470 AbstractCegarLoop]: Abstraction has 5252 states and 17789 transitions. [2022-03-03 20:26:43,008 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:43,008 INFO L276 IsEmpty]: Start isEmpty. Operand 5252 states and 17789 transitions. [2022-03-03 20:26:43,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:26:43,015 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:26:43,015 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:26:43,015 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable352 [2022-03-03 20:26:43,015 INFO L402 AbstractCegarLoop]: === Iteration 354 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:26:43,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:26:43,015 INFO L85 PathProgramCache]: Analyzing trace with hash 2098474924, now seen corresponding path program 354 times [2022-03-03 20:26:43,015 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:26:43,015 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210337550] [2022-03-03 20:26:43,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:26:43,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:26:43,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:26:43,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:26:43,159 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:26:43,159 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210337550] [2022-03-03 20:26:43,159 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210337550] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:26:43,159 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:26:43,159 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:26:43,159 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614552285] [2022-03-03 20:26:43,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:26:43,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:26:43,159 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:26:43,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:26:43,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:26:43,160 INFO L87 Difference]: Start difference. First operand 5252 states and 17789 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:44,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:26:44,141 INFO L93 Difference]: Finished difference Result 5678 states and 18934 transitions. [2022-03-03 20:26:44,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-03-03 20:26:44,141 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:26:44,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:26:44,151 INFO L225 Difference]: With dead ends: 5678 [2022-03-03 20:26:44,152 INFO L226 Difference]: Without dead ends: 5623 [2022-03-03 20:26:44,152 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 836 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=318, Invalid=3104, Unknown=0, NotChecked=0, Total=3422 [2022-03-03 20:26:44,152 INFO L933 BasicCegarLoop]: 115 mSDtfsCounter, 317 mSDsluCounter, 1363 mSDsCounter, 0 mSdLazyCounter, 1942 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 317 SdHoareTripleChecker+Valid, 1140 SdHoareTripleChecker+Invalid, 2024 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 1942 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 20:26:44,152 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [317 Valid, 1140 Invalid, 2024 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 1942 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 20:26:44,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5623 states. [2022-03-03 20:26:44,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5623 to 5262. [2022-03-03 20:26:44,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5262 states, 5261 states have (on average 3.3856681239308117) internal successors, (17812), 5261 states have internal predecessors, (17812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:44,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5262 states to 5262 states and 17812 transitions. [2022-03-03 20:26:44,218 INFO L78 Accepts]: Start accepts. Automaton has 5262 states and 17812 transitions. Word has length 39 [2022-03-03 20:26:44,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:26:44,218 INFO L470 AbstractCegarLoop]: Abstraction has 5262 states and 17812 transitions. [2022-03-03 20:26:44,218 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:44,218 INFO L276 IsEmpty]: Start isEmpty. Operand 5262 states and 17812 transitions. [2022-03-03 20:26:44,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:26:44,224 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:26:44,224 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:26:44,225 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable353 [2022-03-03 20:26:44,225 INFO L402 AbstractCegarLoop]: === Iteration 355 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:26:44,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:26:44,225 INFO L85 PathProgramCache]: Analyzing trace with hash -1023840150, now seen corresponding path program 355 times [2022-03-03 20:26:44,225 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:26:44,225 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602267762] [2022-03-03 20:26:44,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:26:44,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:26:44,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:26:44,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:26:44,380 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:26:44,380 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602267762] [2022-03-03 20:26:44,380 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602267762] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:26:44,380 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:26:44,380 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:26:44,380 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393213839] [2022-03-03 20:26:44,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:26:44,380 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:26:44,380 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:26:44,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:26:44,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:26:44,380 INFO L87 Difference]: Start difference. First operand 5262 states and 17812 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:45,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:26:45,711 INFO L93 Difference]: Finished difference Result 5636 states and 18835 transitions. [2022-03-03 20:26:45,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-03-03 20:26:45,712 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:26:45,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:26:45,722 INFO L225 Difference]: With dead ends: 5636 [2022-03-03 20:26:45,723 INFO L226 Difference]: Without dead ends: 5576 [2022-03-03 20:26:45,723 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 717 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=298, Invalid=2782, Unknown=0, NotChecked=0, Total=3080 [2022-03-03 20:26:45,723 INFO L933 BasicCegarLoop]: 111 mSDtfsCounter, 293 mSDsluCounter, 1331 mSDsCounter, 0 mSdLazyCounter, 1830 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 1109 SdHoareTripleChecker+Invalid, 1895 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 1830 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:26:45,723 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [293 Valid, 1109 Invalid, 1895 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 1830 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:26:45,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5576 states. [2022-03-03 20:26:45,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5576 to 5268. [2022-03-03 20:26:45,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5268 states, 5267 states have (on average 3.384849060186064) internal successors, (17828), 5267 states have internal predecessors, (17828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:45,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5268 states to 5268 states and 17828 transitions. [2022-03-03 20:26:45,790 INFO L78 Accepts]: Start accepts. Automaton has 5268 states and 17828 transitions. Word has length 39 [2022-03-03 20:26:45,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:26:45,790 INFO L470 AbstractCegarLoop]: Abstraction has 5268 states and 17828 transitions. [2022-03-03 20:26:45,790 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:45,790 INFO L276 IsEmpty]: Start isEmpty. Operand 5268 states and 17828 transitions. [2022-03-03 20:26:45,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:26:45,797 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:26:45,797 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:26:45,797 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable354 [2022-03-03 20:26:45,797 INFO L402 AbstractCegarLoop]: === Iteration 356 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:26:45,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:26:45,797 INFO L85 PathProgramCache]: Analyzing trace with hash -1091585030, now seen corresponding path program 356 times [2022-03-03 20:26:45,797 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:26:45,797 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313102546] [2022-03-03 20:26:45,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:26:45,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:26:45,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:26:46,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:26:46,016 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:26:46,016 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313102546] [2022-03-03 20:26:46,017 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313102546] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:26:46,017 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:26:46,017 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:26:46,017 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499434340] [2022-03-03 20:26:46,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:26:46,017 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:26:46,017 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:26:46,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:26:46,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:26:46,017 INFO L87 Difference]: Start difference. First operand 5268 states and 17828 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:47,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:26:47,322 INFO L93 Difference]: Finished difference Result 5607 states and 18754 transitions. [2022-03-03 20:26:47,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-03 20:26:47,322 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:26:47,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:26:47,332 INFO L225 Difference]: With dead ends: 5607 [2022-03-03 20:26:47,332 INFO L226 Difference]: Without dead ends: 5564 [2022-03-03 20:26:47,333 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 640 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=267, Invalid=2595, Unknown=0, NotChecked=0, Total=2862 [2022-03-03 20:26:47,333 INFO L933 BasicCegarLoop]: 111 mSDtfsCounter, 291 mSDsluCounter, 1325 mSDsCounter, 0 mSdLazyCounter, 1874 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 1096 SdHoareTripleChecker+Invalid, 1931 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 1874 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:26:47,333 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [291 Valid, 1096 Invalid, 1931 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 1874 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:26:47,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5564 states. [2022-03-03 20:26:47,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5564 to 5274. [2022-03-03 20:26:47,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5274 states, 5273 states have (on average 3.3834629243315) internal successors, (17841), 5273 states have internal predecessors, (17841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:47,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5274 states to 5274 states and 17841 transitions. [2022-03-03 20:26:47,397 INFO L78 Accepts]: Start accepts. Automaton has 5274 states and 17841 transitions. Word has length 39 [2022-03-03 20:26:47,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:26:47,397 INFO L470 AbstractCegarLoop]: Abstraction has 5274 states and 17841 transitions. [2022-03-03 20:26:47,397 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:47,397 INFO L276 IsEmpty]: Start isEmpty. Operand 5274 states and 17841 transitions. [2022-03-03 20:26:47,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:26:47,404 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:26:47,404 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:26:47,404 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable355 [2022-03-03 20:26:47,404 INFO L402 AbstractCegarLoop]: === Iteration 357 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:26:47,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:26:47,404 INFO L85 PathProgramCache]: Analyzing trace with hash 658522106, now seen corresponding path program 357 times [2022-03-03 20:26:47,404 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:26:47,404 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137304856] [2022-03-03 20:26:47,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:26:47,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:26:47,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:26:47,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:26:47,626 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:26:47,626 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137304856] [2022-03-03 20:26:47,626 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137304856] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:26:47,626 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:26:47,626 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:26:47,626 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510241458] [2022-03-03 20:26:47,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:26:47,626 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:26:47,627 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:26:47,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:26:47,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:26:47,627 INFO L87 Difference]: Start difference. First operand 5274 states and 17841 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:48,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:26:48,775 INFO L93 Difference]: Finished difference Result 5613 states and 18771 transitions. [2022-03-03 20:26:48,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-03 20:26:48,776 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:26:48,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:26:48,786 INFO L225 Difference]: With dead ends: 5613 [2022-03-03 20:26:48,786 INFO L226 Difference]: Without dead ends: 5562 [2022-03-03 20:26:48,786 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 574 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=251, Invalid=2401, Unknown=0, NotChecked=0, Total=2652 [2022-03-03 20:26:48,786 INFO L933 BasicCegarLoop]: 103 mSDtfsCounter, 267 mSDsluCounter, 1241 mSDsCounter, 0 mSdLazyCounter, 1808 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 1006 SdHoareTripleChecker+Invalid, 1862 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 1808 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:26:48,787 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [267 Valid, 1006 Invalid, 1862 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 1808 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:26:48,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5562 states. [2022-03-03 20:26:48,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5562 to 5274. [2022-03-03 20:26:48,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5274 states, 5273 states have (on average 3.3828939882419875) internal successors, (17838), 5273 states have internal predecessors, (17838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:48,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5274 states to 5274 states and 17838 transitions. [2022-03-03 20:26:48,851 INFO L78 Accepts]: Start accepts. Automaton has 5274 states and 17838 transitions. Word has length 39 [2022-03-03 20:26:48,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:26:48,851 INFO L470 AbstractCegarLoop]: Abstraction has 5274 states and 17838 transitions. [2022-03-03 20:26:48,851 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:48,851 INFO L276 IsEmpty]: Start isEmpty. Operand 5274 states and 17838 transitions. [2022-03-03 20:26:48,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:26:48,858 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:26:48,858 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:26:48,858 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable356 [2022-03-03 20:26:48,858 INFO L402 AbstractCegarLoop]: === Iteration 358 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:26:48,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:26:48,858 INFO L85 PathProgramCache]: Analyzing trace with hash 1275740508, now seen corresponding path program 358 times [2022-03-03 20:26:48,858 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:26:48,858 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531444764] [2022-03-03 20:26:48,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:26:48,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:26:48,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:26:49,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:26:49,077 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:26:49,077 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531444764] [2022-03-03 20:26:49,077 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531444764] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:26:49,078 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:26:49,078 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:26:49,078 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285519955] [2022-03-03 20:26:49,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:26:49,078 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:26:49,078 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:26:49,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:26:49,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:26:49,078 INFO L87 Difference]: Start difference. First operand 5274 states and 17838 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:50,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:26:50,154 INFO L93 Difference]: Finished difference Result 5609 states and 18750 transitions. [2022-03-03 20:26:50,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-03 20:26:50,154 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:26:50,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:26:50,165 INFO L225 Difference]: With dead ends: 5609 [2022-03-03 20:26:50,165 INFO L226 Difference]: Without dead ends: 5563 [2022-03-03 20:26:50,165 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 604 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=262, Invalid=2494, Unknown=0, NotChecked=0, Total=2756 [2022-03-03 20:26:50,165 INFO L933 BasicCegarLoop]: 109 mSDtfsCounter, 279 mSDsluCounter, 1301 mSDsCounter, 0 mSdLazyCounter, 1807 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 1074 SdHoareTripleChecker+Invalid, 1861 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 1807 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:26:50,165 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [279 Valid, 1074 Invalid, 1861 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 1807 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:26:50,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5563 states. [2022-03-03 20:26:50,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5563 to 5281. [2022-03-03 20:26:50,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5281 states, 5280 states have (on average 3.38125) internal successors, (17853), 5280 states have internal predecessors, (17853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:50,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5281 states to 5281 states and 17853 transitions. [2022-03-03 20:26:50,238 INFO L78 Accepts]: Start accepts. Automaton has 5281 states and 17853 transitions. Word has length 39 [2022-03-03 20:26:50,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:26:50,238 INFO L470 AbstractCegarLoop]: Abstraction has 5281 states and 17853 transitions. [2022-03-03 20:26:50,238 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:50,238 INFO L276 IsEmpty]: Start isEmpty. Operand 5281 states and 17853 transitions. [2022-03-03 20:26:50,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:26:50,245 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:26:50,245 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:26:50,245 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable357 [2022-03-03 20:26:50,245 INFO L402 AbstractCegarLoop]: === Iteration 359 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:26:50,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:26:50,245 INFO L85 PathProgramCache]: Analyzing trace with hash -159326982, now seen corresponding path program 359 times [2022-03-03 20:26:50,245 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:26:50,246 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671892654] [2022-03-03 20:26:50,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:26:50,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:26:50,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:26:50,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:26:50,395 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:26:50,395 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671892654] [2022-03-03 20:26:50,395 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671892654] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:26:50,395 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:26:50,395 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:26:50,395 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651222120] [2022-03-03 20:26:50,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:26:50,395 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:26:50,395 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:26:50,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:26:50,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:26:50,396 INFO L87 Difference]: Start difference. First operand 5281 states and 17853 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:51,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:26:51,248 INFO L93 Difference]: Finished difference Result 5599 states and 18724 transitions. [2022-03-03 20:26:51,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-03 20:26:51,249 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:26:51,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:26:51,258 INFO L225 Difference]: With dead ends: 5599 [2022-03-03 20:26:51,259 INFO L226 Difference]: Without dead ends: 5544 [2022-03-03 20:26:51,259 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 574 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=251, Invalid=2401, Unknown=0, NotChecked=0, Total=2652 [2022-03-03 20:26:51,259 INFO L933 BasicCegarLoop]: 102 mSDtfsCounter, 280 mSDsluCounter, 1213 mSDsCounter, 0 mSdLazyCounter, 1772 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 990 SdHoareTripleChecker+Invalid, 1824 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 1772 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 20:26:51,259 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [280 Valid, 990 Invalid, 1824 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 1772 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 20:26:51,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5544 states. [2022-03-03 20:26:51,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5544 to 5278. [2022-03-03 20:26:51,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5278 states, 5277 states have (on average 3.3820352472996023) internal successors, (17847), 5277 states have internal predecessors, (17847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:51,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5278 states to 5278 states and 17847 transitions. [2022-03-03 20:26:51,323 INFO L78 Accepts]: Start accepts. Automaton has 5278 states and 17847 transitions. Word has length 39 [2022-03-03 20:26:51,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:26:51,323 INFO L470 AbstractCegarLoop]: Abstraction has 5278 states and 17847 transitions. [2022-03-03 20:26:51,323 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:51,323 INFO L276 IsEmpty]: Start isEmpty. Operand 5278 states and 17847 transitions. [2022-03-03 20:26:51,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:26:51,330 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:26:51,330 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:26:51,330 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable358 [2022-03-03 20:26:51,330 INFO L402 AbstractCegarLoop]: === Iteration 360 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:26:51,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:26:51,330 INFO L85 PathProgramCache]: Analyzing trace with hash -1442030100, now seen corresponding path program 360 times [2022-03-03 20:26:51,330 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:26:51,330 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3228363] [2022-03-03 20:26:51,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:26:51,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:26:51,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:26:51,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:26:51,472 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:26:51,472 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3228363] [2022-03-03 20:26:51,472 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3228363] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:26:51,472 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:26:51,472 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:26:51,473 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664979825] [2022-03-03 20:26:51,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:26:51,473 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:26:51,473 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:26:51,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:26:51,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:26:51,473 INFO L87 Difference]: Start difference. First operand 5278 states and 17847 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:52,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:26:52,323 INFO L93 Difference]: Finished difference Result 5652 states and 18840 transitions. [2022-03-03 20:26:52,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-03-03 20:26:52,323 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:26:52,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:26:52,333 INFO L225 Difference]: With dead ends: 5652 [2022-03-03 20:26:52,334 INFO L226 Difference]: Without dead ends: 5595 [2022-03-03 20:26:52,334 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 647 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=270, Invalid=2592, Unknown=0, NotChecked=0, Total=2862 [2022-03-03 20:26:52,334 INFO L933 BasicCegarLoop]: 104 mSDtfsCounter, 282 mSDsluCounter, 1232 mSDsCounter, 0 mSdLazyCounter, 1803 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 1011 SdHoareTripleChecker+Invalid, 1861 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 1803 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 20:26:52,334 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [282 Valid, 1011 Invalid, 1861 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 1803 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 20:26:52,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5595 states. [2022-03-03 20:26:52,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5595 to 5278. [2022-03-03 20:26:52,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5278 states, 5277 states have (on average 3.3818457456888384) internal successors, (17846), 5277 states have internal predecessors, (17846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:52,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5278 states to 5278 states and 17846 transitions. [2022-03-03 20:26:52,402 INFO L78 Accepts]: Start accepts. Automaton has 5278 states and 17846 transitions. Word has length 39 [2022-03-03 20:26:52,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:26:52,402 INFO L470 AbstractCegarLoop]: Abstraction has 5278 states and 17846 transitions. [2022-03-03 20:26:52,402 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:52,402 INFO L276 IsEmpty]: Start isEmpty. Operand 5278 states and 17846 transitions. [2022-03-03 20:26:52,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:26:52,409 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:26:52,409 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:26:52,409 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable359 [2022-03-03 20:26:52,409 INFO L402 AbstractCegarLoop]: === Iteration 361 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:26:52,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:26:52,409 INFO L85 PathProgramCache]: Analyzing trace with hash 1135459016, now seen corresponding path program 361 times [2022-03-03 20:26:52,409 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:26:52,410 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77785777] [2022-03-03 20:26:52,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:26:52,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:26:52,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:26:52,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:26:52,553 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:26:52,553 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77785777] [2022-03-03 20:26:52,553 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77785777] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:26:52,553 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:26:52,553 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:26:52,553 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694856807] [2022-03-03 20:26:52,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:26:52,553 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:26:52,553 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:26:52,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:26:52,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:26:52,553 INFO L87 Difference]: Start difference. First operand 5278 states and 17846 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:53,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:26:53,426 INFO L93 Difference]: Finished difference Result 5653 states and 18841 transitions. [2022-03-03 20:26:53,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-03-03 20:26:53,426 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:26:53,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:26:53,436 INFO L225 Difference]: With dead ends: 5653 [2022-03-03 20:26:53,437 INFO L226 Difference]: Without dead ends: 5594 [2022-03-03 20:26:53,437 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 646 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=272, Invalid=2590, Unknown=0, NotChecked=0, Total=2862 [2022-03-03 20:26:53,437 INFO L933 BasicCegarLoop]: 104 mSDtfsCounter, 283 mSDsluCounter, 1233 mSDsCounter, 0 mSdLazyCounter, 1774 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 1014 SdHoareTripleChecker+Invalid, 1832 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 1774 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 20:26:53,437 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [283 Valid, 1014 Invalid, 1832 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 1774 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 20:26:53,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5594 states. [2022-03-03 20:26:53,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5594 to 5277. [2022-03-03 20:26:53,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5277 states, 5276 states have (on average 3.3821076573161486) internal successors, (17844), 5276 states have internal predecessors, (17844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:53,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5277 states to 5277 states and 17844 transitions. [2022-03-03 20:26:53,502 INFO L78 Accepts]: Start accepts. Automaton has 5277 states and 17844 transitions. Word has length 39 [2022-03-03 20:26:53,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:26:53,502 INFO L470 AbstractCegarLoop]: Abstraction has 5277 states and 17844 transitions. [2022-03-03 20:26:53,502 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:53,502 INFO L276 IsEmpty]: Start isEmpty. Operand 5277 states and 17844 transitions. [2022-03-03 20:26:53,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:26:53,509 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:26:53,509 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:26:53,509 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable360 [2022-03-03 20:26:53,509 INFO L402 AbstractCegarLoop]: === Iteration 362 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:26:53,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:26:53,509 INFO L85 PathProgramCache]: Analyzing trace with hash -103273512, now seen corresponding path program 362 times [2022-03-03 20:26:53,509 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:26:53,510 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479737346] [2022-03-03 20:26:53,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:26:53,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:26:53,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:26:53,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:26:53,652 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:26:53,652 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479737346] [2022-03-03 20:26:53,652 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479737346] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:26:53,652 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:26:53,652 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:26:53,652 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790208590] [2022-03-03 20:26:53,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:26:53,652 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:26:53,652 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:26:53,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:26:53,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:26:53,653 INFO L87 Difference]: Start difference. First operand 5277 states and 17844 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:54,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:26:54,439 INFO L93 Difference]: Finished difference Result 5561 states and 18637 transitions. [2022-03-03 20:26:54,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-03-03 20:26:54,439 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:26:54,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:26:54,450 INFO L225 Difference]: With dead ends: 5561 [2022-03-03 20:26:54,450 INFO L226 Difference]: Without dead ends: 5486 [2022-03-03 20:26:54,451 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 543 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=237, Invalid=2313, Unknown=0, NotChecked=0, Total=2550 [2022-03-03 20:26:54,451 INFO L933 BasicCegarLoop]: 111 mSDtfsCounter, 263 mSDsluCounter, 1273 mSDsCounter, 0 mSdLazyCounter, 1778 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 1076 SdHoareTripleChecker+Invalid, 1826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 1778 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 20:26:54,451 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [263 Valid, 1076 Invalid, 1826 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 1778 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 20:26:54,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5486 states. [2022-03-03 20:26:54,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5486 to 5263. [2022-03-03 20:26:54,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5263 states, 5262 states have (on average 3.3842645381984036) internal successors, (17808), 5262 states have internal predecessors, (17808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:54,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5263 states to 5263 states and 17808 transitions. [2022-03-03 20:26:54,520 INFO L78 Accepts]: Start accepts. Automaton has 5263 states and 17808 transitions. Word has length 39 [2022-03-03 20:26:54,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:26:54,521 INFO L470 AbstractCegarLoop]: Abstraction has 5263 states and 17808 transitions. [2022-03-03 20:26:54,521 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:54,521 INFO L276 IsEmpty]: Start isEmpty. Operand 5263 states and 17808 transitions. [2022-03-03 20:26:54,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:26:54,528 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:26:54,528 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:26:54,528 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable361 [2022-03-03 20:26:54,528 INFO L402 AbstractCegarLoop]: === Iteration 363 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:26:54,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:26:54,528 INFO L85 PathProgramCache]: Analyzing trace with hash 60473304, now seen corresponding path program 363 times [2022-03-03 20:26:54,528 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:26:54,528 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948397791] [2022-03-03 20:26:54,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:26:54,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:26:54,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:26:54,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:26:54,675 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:26:54,676 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948397791] [2022-03-03 20:26:54,676 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948397791] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:26:54,676 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:26:54,676 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:26:54,676 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809117101] [2022-03-03 20:26:54,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:26:54,676 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:26:54,676 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:26:54,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:26:54,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:26:54,676 INFO L87 Difference]: Start difference. First operand 5263 states and 17808 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:55,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:26:55,632 INFO L93 Difference]: Finished difference Result 5480 states and 18458 transitions. [2022-03-03 20:26:55,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-03-03 20:26:55,632 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:26:55,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:26:55,642 INFO L225 Difference]: With dead ends: 5480 [2022-03-03 20:26:55,642 INFO L226 Difference]: Without dead ends: 5393 [2022-03-03 20:26:55,642 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 446 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=221, Invalid=2035, Unknown=0, NotChecked=0, Total=2256 [2022-03-03 20:26:55,643 INFO L933 BasicCegarLoop]: 107 mSDtfsCounter, 227 mSDsluCounter, 1232 mSDsCounter, 0 mSdLazyCounter, 1724 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 1023 SdHoareTripleChecker+Invalid, 1769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1724 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 20:26:55,643 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [227 Valid, 1023 Invalid, 1769 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 1724 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 20:26:55,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5393 states. [2022-03-03 20:26:55,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5393 to 5237. [2022-03-03 20:26:55,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5237 states, 5236 states have (on average 3.3894194041252863) internal successors, (17747), 5236 states have internal predecessors, (17747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:55,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5237 states to 5237 states and 17747 transitions. [2022-03-03 20:26:55,704 INFO L78 Accepts]: Start accepts. Automaton has 5237 states and 17747 transitions. Word has length 39 [2022-03-03 20:26:55,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:26:55,704 INFO L470 AbstractCegarLoop]: Abstraction has 5237 states and 17747 transitions. [2022-03-03 20:26:55,704 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:55,704 INFO L276 IsEmpty]: Start isEmpty. Operand 5237 states and 17747 transitions. [2022-03-03 20:26:55,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:26:55,710 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:26:55,711 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:26:55,711 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable362 [2022-03-03 20:26:55,711 INFO L402 AbstractCegarLoop]: === Iteration 364 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:26:55,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:26:55,711 INFO L85 PathProgramCache]: Analyzing trace with hash 692633254, now seen corresponding path program 364 times [2022-03-03 20:26:55,711 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:26:55,711 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390813894] [2022-03-03 20:26:55,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:26:55,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:26:55,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:26:55,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:26:55,860 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:26:55,860 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390813894] [2022-03-03 20:26:55,860 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390813894] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:26:55,860 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:26:55,860 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:26:55,860 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320726753] [2022-03-03 20:26:55,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:26:55,860 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:26:55,860 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:26:55,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:26:55,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:26:55,860 INFO L87 Difference]: Start difference. First operand 5237 states and 17747 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:56,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:26:56,968 INFO L93 Difference]: Finished difference Result 5863 states and 19501 transitions. [2022-03-03 20:26:56,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-03-03 20:26:56,968 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:26:56,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:26:56,978 INFO L225 Difference]: With dead ends: 5863 [2022-03-03 20:26:56,978 INFO L226 Difference]: Without dead ends: 5799 [2022-03-03 20:26:56,979 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1092 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=349, Invalid=3811, Unknown=0, NotChecked=0, Total=4160 [2022-03-03 20:26:56,979 INFO L933 BasicCegarLoop]: 132 mSDtfsCounter, 344 mSDsluCounter, 1594 mSDsCounter, 0 mSdLazyCounter, 2248 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 1360 SdHoareTripleChecker+Invalid, 2317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 2248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:26:56,979 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [344 Valid, 1360 Invalid, 2317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 2248 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:26:56,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5799 states. [2022-03-03 20:26:57,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5799 to 5241. [2022-03-03 20:26:57,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5241 states, 5240 states have (on average 3.3887404580152674) internal successors, (17757), 5240 states have internal predecessors, (17757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:57,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5241 states to 5241 states and 17757 transitions. [2022-03-03 20:26:57,047 INFO L78 Accepts]: Start accepts. Automaton has 5241 states and 17757 transitions. Word has length 39 [2022-03-03 20:26:57,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:26:57,047 INFO L470 AbstractCegarLoop]: Abstraction has 5241 states and 17757 transitions. [2022-03-03 20:26:57,048 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:57,048 INFO L276 IsEmpty]: Start isEmpty. Operand 5241 states and 17757 transitions. [2022-03-03 20:26:57,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:26:57,054 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:26:57,054 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:26:57,054 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable363 [2022-03-03 20:26:57,054 INFO L402 AbstractCegarLoop]: === Iteration 365 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:26:57,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:26:57,054 INFO L85 PathProgramCache]: Analyzing trace with hash 1611116824, now seen corresponding path program 365 times [2022-03-03 20:26:57,054 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:26:57,055 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784699768] [2022-03-03 20:26:57,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:26:57,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:26:57,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:26:57,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:26:57,204 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:26:57,204 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784699768] [2022-03-03 20:26:57,204 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784699768] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:26:57,204 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:26:57,204 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:26:57,204 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006175227] [2022-03-03 20:26:57,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:26:57,204 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:26:57,204 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:26:57,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:26:57,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:26:57,204 INFO L87 Difference]: Start difference. First operand 5241 states and 17757 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:58,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:26:58,064 INFO L93 Difference]: Finished difference Result 5680 states and 18997 transitions. [2022-03-03 20:26:58,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-03 20:26:58,064 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:26:58,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:26:58,074 INFO L225 Difference]: With dead ends: 5680 [2022-03-03 20:26:58,074 INFO L226 Difference]: Without dead ends: 5637 [2022-03-03 20:26:58,075 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 479 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=223, Invalid=2129, Unknown=0, NotChecked=0, Total=2352 [2022-03-03 20:26:58,075 INFO L933 BasicCegarLoop]: 108 mSDtfsCounter, 271 mSDsluCounter, 1365 mSDsCounter, 0 mSdLazyCounter, 1852 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 1071 SdHoareTripleChecker+Invalid, 1895 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 1852 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 20:26:58,075 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [271 Valid, 1071 Invalid, 1895 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 1852 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 20:26:58,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5637 states. [2022-03-03 20:26:58,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5637 to 5247. [2022-03-03 20:26:58,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5247 states, 5246 states have (on average 3.3873427373236753) internal successors, (17770), 5246 states have internal predecessors, (17770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:58,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5247 states to 5247 states and 17770 transitions. [2022-03-03 20:26:58,139 INFO L78 Accepts]: Start accepts. Automaton has 5247 states and 17770 transitions. Word has length 39 [2022-03-03 20:26:58,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:26:58,139 INFO L470 AbstractCegarLoop]: Abstraction has 5247 states and 17770 transitions. [2022-03-03 20:26:58,139 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:58,139 INFO L276 IsEmpty]: Start isEmpty. Operand 5247 states and 17770 transitions. [2022-03-03 20:26:58,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:26:58,145 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:26:58,145 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:26:58,146 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable364 [2022-03-03 20:26:58,146 INFO L402 AbstractCegarLoop]: === Iteration 366 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:26:58,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:26:58,146 INFO L85 PathProgramCache]: Analyzing trace with hash 1631265558, now seen corresponding path program 366 times [2022-03-03 20:26:58,146 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:26:58,146 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352638874] [2022-03-03 20:26:58,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:26:58,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:26:58,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:26:58,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:26:58,333 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:26:58,333 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352638874] [2022-03-03 20:26:58,333 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352638874] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:26:58,333 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:26:58,333 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:26:58,333 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957881192] [2022-03-03 20:26:58,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:26:58,333 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:26:58,333 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:26:58,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:26:58,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:26:58,334 INFO L87 Difference]: Start difference. First operand 5247 states and 17770 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:59,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:26:59,307 INFO L93 Difference]: Finished difference Result 5643 states and 18915 transitions. [2022-03-03 20:26:59,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-03 20:26:59,307 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:26:59,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:26:59,318 INFO L225 Difference]: With dead ends: 5643 [2022-03-03 20:26:59,319 INFO L226 Difference]: Without dead ends: 5600 [2022-03-03 20:26:59,319 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 479 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=226, Invalid=2126, Unknown=0, NotChecked=0, Total=2352 [2022-03-03 20:26:59,319 INFO L933 BasicCegarLoop]: 107 mSDtfsCounter, 263 mSDsluCounter, 1347 mSDsCounter, 0 mSdLazyCounter, 1819 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 1064 SdHoareTripleChecker+Invalid, 1863 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 1819 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:26:59,319 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [263 Valid, 1064 Invalid, 1863 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 1819 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:26:59,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5600 states. [2022-03-03 20:26:59,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5600 to 5243. [2022-03-03 20:26:59,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5243 states, 5242 states have (on average 3.3880198397558186) internal successors, (17760), 5242 states have internal predecessors, (17760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:59,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5243 states to 5243 states and 17760 transitions. [2022-03-03 20:26:59,397 INFO L78 Accepts]: Start accepts. Automaton has 5243 states and 17760 transitions. Word has length 39 [2022-03-03 20:26:59,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:26:59,397 INFO L470 AbstractCegarLoop]: Abstraction has 5243 states and 17760 transitions. [2022-03-03 20:26:59,397 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:26:59,397 INFO L276 IsEmpty]: Start isEmpty. Operand 5243 states and 17760 transitions. [2022-03-03 20:26:59,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:26:59,405 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:26:59,405 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:26:59,405 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable365 [2022-03-03 20:26:59,405 INFO L402 AbstractCegarLoop]: === Iteration 367 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:26:59,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:26:59,405 INFO L85 PathProgramCache]: Analyzing trace with hash -1511198250, now seen corresponding path program 367 times [2022-03-03 20:26:59,405 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:26:59,405 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454461751] [2022-03-03 20:26:59,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:26:59,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:26:59,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:26:59,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:26:59,566 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:26:59,566 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454461751] [2022-03-03 20:26:59,566 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454461751] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:26:59,566 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:26:59,566 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:26:59,566 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565088994] [2022-03-03 20:26:59,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:26:59,566 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:26:59,566 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:26:59,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:26:59,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:26:59,567 INFO L87 Difference]: Start difference. First operand 5243 states and 17760 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:00,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:27:00,572 INFO L93 Difference]: Finished difference Result 5714 states and 19112 transitions. [2022-03-03 20:27:00,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-03 20:27:00,572 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:27:00,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:27:00,583 INFO L225 Difference]: With dead ends: 5714 [2022-03-03 20:27:00,584 INFO L226 Difference]: Without dead ends: 5654 [2022-03-03 20:27:00,584 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 613 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=257, Invalid=2499, Unknown=0, NotChecked=0, Total=2756 [2022-03-03 20:27:00,584 INFO L933 BasicCegarLoop]: 116 mSDtfsCounter, 302 mSDsluCounter, 1405 mSDsCounter, 0 mSdLazyCounter, 1867 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 1166 SdHoareTripleChecker+Invalid, 1927 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 1867 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:27:00,584 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [302 Valid, 1166 Invalid, 1927 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 1867 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:27:00,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5654 states. [2022-03-03 20:27:00,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5654 to 5237. [2022-03-03 20:27:00,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5237 states, 5236 states have (on average 3.3894194041252863) internal successors, (17747), 5236 states have internal predecessors, (17747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:00,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5237 states to 5237 states and 17747 transitions. [2022-03-03 20:27:00,658 INFO L78 Accepts]: Start accepts. Automaton has 5237 states and 17747 transitions. Word has length 39 [2022-03-03 20:27:00,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:27:00,658 INFO L470 AbstractCegarLoop]: Abstraction has 5237 states and 17747 transitions. [2022-03-03 20:27:00,658 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:00,658 INFO L276 IsEmpty]: Start isEmpty. Operand 5237 states and 17747 transitions. [2022-03-03 20:27:00,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:27:00,666 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:27:00,666 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:27:00,666 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable366 [2022-03-03 20:27:00,666 INFO L402 AbstractCegarLoop]: === Iteration 368 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:27:00,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:27:00,666 INFO L85 PathProgramCache]: Analyzing trace with hash 704202504, now seen corresponding path program 368 times [2022-03-03 20:27:00,666 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:27:00,666 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881398967] [2022-03-03 20:27:00,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:27:00,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:27:00,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:27:00,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:27:00,847 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:27:00,847 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881398967] [2022-03-03 20:27:00,847 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881398967] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:27:00,847 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:27:00,847 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:27:00,847 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817647665] [2022-03-03 20:27:00,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:27:00,847 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:27:00,848 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:27:00,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:27:00,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:27:00,848 INFO L87 Difference]: Start difference. First operand 5237 states and 17747 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:01,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:27:01,781 INFO L93 Difference]: Finished difference Result 5682 states and 19052 transitions. [2022-03-03 20:27:01,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-03 20:27:01,781 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:27:01,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:27:01,793 INFO L225 Difference]: With dead ends: 5682 [2022-03-03 20:27:01,793 INFO L226 Difference]: Without dead ends: 5606 [2022-03-03 20:27:01,793 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 484 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=214, Invalid=2042, Unknown=0, NotChecked=0, Total=2256 [2022-03-03 20:27:01,793 INFO L933 BasicCegarLoop]: 115 mSDtfsCounter, 268 mSDsluCounter, 1245 mSDsCounter, 0 mSdLazyCounter, 1707 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 1040 SdHoareTripleChecker+Invalid, 1752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1707 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:27:01,793 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [268 Valid, 1040 Invalid, 1752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 1707 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:27:01,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5606 states. [2022-03-03 20:27:01,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5606 to 5249. [2022-03-03 20:27:01,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5249 states, 5248 states have (on average 3.3862423780487805) internal successors, (17771), 5248 states have internal predecessors, (17771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:01,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5249 states to 5249 states and 17771 transitions. [2022-03-03 20:27:01,872 INFO L78 Accepts]: Start accepts. Automaton has 5249 states and 17771 transitions. Word has length 39 [2022-03-03 20:27:01,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:27:01,873 INFO L470 AbstractCegarLoop]: Abstraction has 5249 states and 17771 transitions. [2022-03-03 20:27:01,873 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:01,873 INFO L276 IsEmpty]: Start isEmpty. Operand 5249 states and 17771 transitions. [2022-03-03 20:27:01,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:27:01,880 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:27:01,880 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:27:01,880 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable367 [2022-03-03 20:27:01,881 INFO L402 AbstractCegarLoop]: === Iteration 369 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:27:01,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:27:01,881 INFO L85 PathProgramCache]: Analyzing trace with hash -313851108, now seen corresponding path program 369 times [2022-03-03 20:27:01,881 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:27:01,881 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000931159] [2022-03-03 20:27:01,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:27:01,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:27:01,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:27:02,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:27:02,095 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:27:02,095 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000931159] [2022-03-03 20:27:02,095 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000931159] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:27:02,095 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:27:02,095 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:27:02,095 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413967878] [2022-03-03 20:27:02,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:27:02,095 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:27:02,096 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:27:02,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:27:02,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:27:02,096 INFO L87 Difference]: Start difference. First operand 5249 states and 17771 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:03,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:27:03,288 INFO L93 Difference]: Finished difference Result 5664 states and 18998 transitions. [2022-03-03 20:27:03,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-03-03 20:27:03,288 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:27:03,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:27:03,299 INFO L225 Difference]: With dead ends: 5664 [2022-03-03 20:27:03,299 INFO L226 Difference]: Without dead ends: 5594 [2022-03-03 20:27:03,299 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 547 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=233, Invalid=2317, Unknown=0, NotChecked=0, Total=2550 [2022-03-03 20:27:03,299 INFO L933 BasicCegarLoop]: 118 mSDtfsCounter, 285 mSDsluCounter, 1406 mSDsCounter, 0 mSdLazyCounter, 1842 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 1178 SdHoareTripleChecker+Invalid, 1897 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 1842 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:27:03,299 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [285 Valid, 1178 Invalid, 1897 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 1842 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:27:03,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5594 states. [2022-03-03 20:27:03,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5594 to 5237. [2022-03-03 20:27:03,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5237 states, 5236 states have (on average 3.388655462184874) internal successors, (17743), 5236 states have internal predecessors, (17743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:03,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5237 states to 5237 states and 17743 transitions. [2022-03-03 20:27:03,365 INFO L78 Accepts]: Start accepts. Automaton has 5237 states and 17743 transitions. Word has length 39 [2022-03-03 20:27:03,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:27:03,365 INFO L470 AbstractCegarLoop]: Abstraction has 5237 states and 17743 transitions. [2022-03-03 20:27:03,365 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:03,365 INFO L276 IsEmpty]: Start isEmpty. Operand 5237 states and 17743 transitions. [2022-03-03 20:27:03,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:27:03,372 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:27:03,372 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:27:03,373 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable368 [2022-03-03 20:27:03,373 INFO L402 AbstractCegarLoop]: === Iteration 370 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:27:03,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:27:03,373 INFO L85 PathProgramCache]: Analyzing trace with hash 532332572, now seen corresponding path program 370 times [2022-03-03 20:27:03,373 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:27:03,373 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355478605] [2022-03-03 20:27:03,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:27:03,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:27:03,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:27:03,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:27:03,591 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:27:03,591 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355478605] [2022-03-03 20:27:03,591 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355478605] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:27:03,591 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:27:03,591 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:27:03,591 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286497561] [2022-03-03 20:27:03,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:27:03,591 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:27:03,591 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:27:03,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:27:03,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:27:03,592 INFO L87 Difference]: Start difference. First operand 5237 states and 17743 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:05,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:27:05,331 INFO L93 Difference]: Finished difference Result 8130 states and 27321 transitions. [2022-03-03 20:27:05,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2022-03-03 20:27:05,332 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:27:05,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:27:05,347 INFO L225 Difference]: With dead ends: 8130 [2022-03-03 20:27:05,347 INFO L226 Difference]: Without dead ends: 8024 [2022-03-03 20:27:05,348 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1649 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=457, Invalid=5243, Unknown=0, NotChecked=0, Total=5700 [2022-03-03 20:27:05,348 INFO L933 BasicCegarLoop]: 206 mSDtfsCounter, 512 mSDsluCounter, 2343 mSDsCounter, 0 mSdLazyCounter, 2857 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 512 SdHoareTripleChecker+Valid, 2226 SdHoareTripleChecker+Invalid, 2964 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 2857 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 20:27:05,348 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [512 Valid, 2226 Invalid, 2964 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 2857 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 20:27:05,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8024 states. [2022-03-03 20:27:05,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8024 to 5290. [2022-03-03 20:27:05,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5290 states, 5289 states have (on average 3.3891094724900737) internal successors, (17925), 5289 states have internal predecessors, (17925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:05,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5290 states to 5290 states and 17925 transitions. [2022-03-03 20:27:05,433 INFO L78 Accepts]: Start accepts. Automaton has 5290 states and 17925 transitions. Word has length 39 [2022-03-03 20:27:05,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:27:05,433 INFO L470 AbstractCegarLoop]: Abstraction has 5290 states and 17925 transitions. [2022-03-03 20:27:05,433 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:05,433 INFO L276 IsEmpty]: Start isEmpty. Operand 5290 states and 17925 transitions. [2022-03-03 20:27:05,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:27:05,440 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:27:05,440 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:27:05,440 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable369 [2022-03-03 20:27:05,440 INFO L402 AbstractCegarLoop]: === Iteration 371 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:27:05,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:27:05,440 INFO L85 PathProgramCache]: Analyzing trace with hash -1248265730, now seen corresponding path program 371 times [2022-03-03 20:27:05,440 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:27:05,440 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965495005] [2022-03-03 20:27:05,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:27:05,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:27:05,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:27:05,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:27:05,585 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:27:05,585 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965495005] [2022-03-03 20:27:05,585 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965495005] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:27:05,585 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:27:05,585 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:27:05,585 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777406357] [2022-03-03 20:27:05,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:27:05,586 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:27:05,586 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:27:05,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:27:05,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:27:05,586 INFO L87 Difference]: Start difference. First operand 5290 states and 17925 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:07,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:27:07,671 INFO L93 Difference]: Finished difference Result 8948 states and 30175 transitions. [2022-03-03 20:27:07,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2022-03-03 20:27:07,671 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:27:07,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:27:07,690 INFO L225 Difference]: With dead ends: 8948 [2022-03-03 20:27:07,690 INFO L226 Difference]: Without dead ends: 8896 [2022-03-03 20:27:07,691 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2071 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=513, Invalid=6293, Unknown=0, NotChecked=0, Total=6806 [2022-03-03 20:27:07,691 INFO L933 BasicCegarLoop]: 237 mSDtfsCounter, 550 mSDsluCounter, 2654 mSDsCounter, 0 mSdLazyCounter, 3226 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 550 SdHoareTripleChecker+Valid, 2573 SdHoareTripleChecker+Invalid, 3340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 3226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-03 20:27:07,691 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [550 Valid, 2573 Invalid, 3340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 3226 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-03 20:27:07,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8896 states. [2022-03-03 20:27:07,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8896 to 5264. [2022-03-03 20:27:07,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5264 states, 5263 states have (on average 3.3900817024510737) internal successors, (17842), 5263 states have internal predecessors, (17842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:07,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5264 states to 5264 states and 17842 transitions. [2022-03-03 20:27:07,799 INFO L78 Accepts]: Start accepts. Automaton has 5264 states and 17842 transitions. Word has length 39 [2022-03-03 20:27:07,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:27:07,799 INFO L470 AbstractCegarLoop]: Abstraction has 5264 states and 17842 transitions. [2022-03-03 20:27:07,799 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:07,799 INFO L276 IsEmpty]: Start isEmpty. Operand 5264 states and 17842 transitions. [2022-03-03 20:27:07,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:27:07,807 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:27:07,807 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:27:07,807 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable370 [2022-03-03 20:27:07,807 INFO L402 AbstractCegarLoop]: === Iteration 372 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:27:07,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:27:07,808 INFO L85 PathProgramCache]: Analyzing trace with hash 1450816142, now seen corresponding path program 372 times [2022-03-03 20:27:07,808 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:27:07,808 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746581289] [2022-03-03 20:27:07,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:27:07,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:27:07,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:27:08,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:27:08,041 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:27:08,041 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746581289] [2022-03-03 20:27:08,041 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746581289] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:27:08,041 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:27:08,041 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:27:08,041 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181395999] [2022-03-03 20:27:08,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:27:08,041 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:27:08,041 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:27:08,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:27:08,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:27:08,041 INFO L87 Difference]: Start difference. First operand 5264 states and 17842 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:09,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:27:09,335 INFO L93 Difference]: Finished difference Result 7462 states and 24986 transitions. [2022-03-03 20:27:09,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-03-03 20:27:09,335 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:27:09,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:27:09,349 INFO L225 Difference]: With dead ends: 7462 [2022-03-03 20:27:09,349 INFO L226 Difference]: Without dead ends: 7407 [2022-03-03 20:27:09,349 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 646 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=266, Invalid=2596, Unknown=0, NotChecked=0, Total=2862 [2022-03-03 20:27:09,349 INFO L933 BasicCegarLoop]: 171 mSDtfsCounter, 397 mSDsluCounter, 1947 mSDsCounter, 0 mSdLazyCounter, 2317 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 397 SdHoareTripleChecker+Valid, 1802 SdHoareTripleChecker+Invalid, 2373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 2317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-03 20:27:09,349 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [397 Valid, 1802 Invalid, 2373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 2317 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-03 20:27:09,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7407 states. [2022-03-03 20:27:09,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7407 to 5290. [2022-03-03 20:27:09,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5290 states, 5289 states have (on average 3.390432974097183) internal successors, (17932), 5289 states have internal predecessors, (17932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:09,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5290 states to 5290 states and 17932 transitions. [2022-03-03 20:27:09,425 INFO L78 Accepts]: Start accepts. Automaton has 5290 states and 17932 transitions. Word has length 39 [2022-03-03 20:27:09,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:27:09,426 INFO L470 AbstractCegarLoop]: Abstraction has 5290 states and 17932 transitions. [2022-03-03 20:27:09,426 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:09,426 INFO L276 IsEmpty]: Start isEmpty. Operand 5290 states and 17932 transitions. [2022-03-03 20:27:09,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:27:09,433 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:27:09,433 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:27:09,433 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable371 [2022-03-03 20:27:09,433 INFO L402 AbstractCegarLoop]: === Iteration 373 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:27:09,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:27:09,433 INFO L85 PathProgramCache]: Analyzing trace with hash -1671498932, now seen corresponding path program 373 times [2022-03-03 20:27:09,433 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:27:09,433 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732753716] [2022-03-03 20:27:09,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:27:09,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:27:09,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:27:09,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:27:09,662 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:27:09,662 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732753716] [2022-03-03 20:27:09,662 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732753716] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:27:09,662 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:27:09,662 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:27:09,662 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206815211] [2022-03-03 20:27:09,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:27:09,662 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:27:09,662 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:27:09,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:27:09,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:27:09,663 INFO L87 Difference]: Start difference. First operand 5290 states and 17932 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:10,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:27:10,969 INFO L93 Difference]: Finished difference Result 8195 states and 27530 transitions. [2022-03-03 20:27:10,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-03-03 20:27:10,969 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:27:10,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:27:10,987 INFO L225 Difference]: With dead ends: 8195 [2022-03-03 20:27:10,987 INFO L226 Difference]: Without dead ends: 8135 [2022-03-03 20:27:10,987 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1085 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=357, Invalid=3803, Unknown=0, NotChecked=0, Total=4160 [2022-03-03 20:27:10,987 INFO L933 BasicCegarLoop]: 217 mSDtfsCounter, 441 mSDsluCounter, 2390 mSDsCounter, 0 mSdLazyCounter, 2812 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 441 SdHoareTripleChecker+Valid, 2295 SdHoareTripleChecker+Invalid, 2885 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 2812 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-03 20:27:10,988 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [441 Valid, 2295 Invalid, 2885 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 2812 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-03 20:27:10,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8135 states. [2022-03-03 20:27:11,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8135 to 5288. [2022-03-03 20:27:11,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5288 states, 5287 states have (on average 3.3907698127482506) internal successors, (17927), 5287 states have internal predecessors, (17927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:11,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5288 states to 5288 states and 17927 transitions. [2022-03-03 20:27:11,081 INFO L78 Accepts]: Start accepts. Automaton has 5288 states and 17927 transitions. Word has length 39 [2022-03-03 20:27:11,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:27:11,082 INFO L470 AbstractCegarLoop]: Abstraction has 5288 states and 17927 transitions. [2022-03-03 20:27:11,082 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:11,082 INFO L276 IsEmpty]: Start isEmpty. Operand 5288 states and 17927 transitions. [2022-03-03 20:27:11,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:27:11,089 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:27:11,089 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:27:11,089 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable372 [2022-03-03 20:27:11,089 INFO L402 AbstractCegarLoop]: === Iteration 374 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:27:11,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:27:11,089 INFO L85 PathProgramCache]: Analyzing trace with hash 746064762, now seen corresponding path program 374 times [2022-03-03 20:27:11,089 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:27:11,090 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420046860] [2022-03-03 20:27:11,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:27:11,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:27:11,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:27:11,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:27:11,247 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:27:11,247 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420046860] [2022-03-03 20:27:11,247 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420046860] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:27:11,248 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:27:11,248 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:27:11,248 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350214724] [2022-03-03 20:27:11,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:27:11,248 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:27:11,248 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:27:11,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:27:11,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:27:11,248 INFO L87 Difference]: Start difference. First operand 5288 states and 17927 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:12,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:27:12,461 INFO L93 Difference]: Finished difference Result 7383 states and 24812 transitions. [2022-03-03 20:27:12,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-03-03 20:27:12,462 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:27:12,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:27:12,488 INFO L225 Difference]: With dead ends: 7383 [2022-03-03 20:27:12,488 INFO L226 Difference]: Without dead ends: 7292 [2022-03-03 20:27:12,488 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 574 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=238, Invalid=2414, Unknown=0, NotChecked=0, Total=2652 [2022-03-03 20:27:12,488 INFO L933 BasicCegarLoop]: 178 mSDtfsCounter, 375 mSDsluCounter, 1982 mSDsCounter, 0 mSdLazyCounter, 2288 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 1875 SdHoareTripleChecker+Invalid, 2338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 2288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-03 20:27:12,489 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [375 Valid, 1875 Invalid, 2338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 2288 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-03 20:27:12,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7292 states. [2022-03-03 20:27:12,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7292 to 5288. [2022-03-03 20:27:12,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5288 states, 5287 states have (on average 3.3896349536599204) internal successors, (17921), 5287 states have internal predecessors, (17921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:12,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5288 states to 5288 states and 17921 transitions. [2022-03-03 20:27:12,591 INFO L78 Accepts]: Start accepts. Automaton has 5288 states and 17921 transitions. Word has length 39 [2022-03-03 20:27:12,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:27:12,591 INFO L470 AbstractCegarLoop]: Abstraction has 5288 states and 17921 transitions. [2022-03-03 20:27:12,591 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:12,591 INFO L276 IsEmpty]: Start isEmpty. Operand 5288 states and 17921 transitions. [2022-03-03 20:27:12,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:27:12,601 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:27:12,601 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:27:12,601 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable373 [2022-03-03 20:27:12,601 INFO L402 AbstractCegarLoop]: === Iteration 375 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:27:12,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:27:12,601 INFO L85 PathProgramCache]: Analyzing trace with hash -756417444, now seen corresponding path program 375 times [2022-03-03 20:27:12,601 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:27:12,601 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986120931] [2022-03-03 20:27:12,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:27:12,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:27:12,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:27:12,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:27:12,793 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:27:12,793 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986120931] [2022-03-03 20:27:12,793 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986120931] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:27:12,793 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:27:12,793 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:27:12,793 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245966032] [2022-03-03 20:27:12,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:27:12,793 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:27:12,793 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:27:12,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:27:12,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:27:12,793 INFO L87 Difference]: Start difference. First operand 5288 states and 17921 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:14,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:27:14,526 INFO L93 Difference]: Finished difference Result 8285 states and 27895 transitions. [2022-03-03 20:27:14,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-03-03 20:27:14,527 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:27:14,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:27:14,545 INFO L225 Difference]: With dead ends: 8285 [2022-03-03 20:27:14,545 INFO L226 Difference]: Without dead ends: 8185 [2022-03-03 20:27:14,546 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1127 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=367, Invalid=3923, Unknown=0, NotChecked=0, Total=4290 [2022-03-03 20:27:14,546 INFO L933 BasicCegarLoop]: 240 mSDtfsCounter, 427 mSDsluCounter, 2566 mSDsCounter, 0 mSdLazyCounter, 3025 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 427 SdHoareTripleChecker+Valid, 2501 SdHoareTripleChecker+Invalid, 3101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 3025 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-03 20:27:14,546 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [427 Valid, 2501 Invalid, 3101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 3025 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-03 20:27:14,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8185 states. [2022-03-03 20:27:14,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8185 to 5282. [2022-03-03 20:27:14,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5282 states, 5281 states have (on average 3.389888278735088) internal successors, (17902), 5281 states have internal predecessors, (17902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:14,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5282 states to 5282 states and 17902 transitions. [2022-03-03 20:27:14,672 INFO L78 Accepts]: Start accepts. Automaton has 5282 states and 17902 transitions. Word has length 39 [2022-03-03 20:27:14,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:27:14,672 INFO L470 AbstractCegarLoop]: Abstraction has 5282 states and 17902 transitions. [2022-03-03 20:27:14,672 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:14,672 INFO L276 IsEmpty]: Start isEmpty. Operand 5282 states and 17902 transitions. [2022-03-03 20:27:14,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:27:14,680 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:27:14,680 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:27:14,680 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable374 [2022-03-03 20:27:14,680 INFO L402 AbstractCegarLoop]: === Iteration 376 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:27:14,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:27:14,680 INFO L85 PathProgramCache]: Analyzing trace with hash -993042440, now seen corresponding path program 376 times [2022-03-03 20:27:14,680 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:27:14,680 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241279382] [2022-03-03 20:27:14,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:27:14,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:27:14,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:27:14,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:27:14,868 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:27:14,868 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241279382] [2022-03-03 20:27:14,868 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241279382] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:27:14,868 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:27:14,868 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:27:14,868 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918218514] [2022-03-03 20:27:14,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:27:14,869 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:27:14,869 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:27:14,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:27:14,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:27:14,869 INFO L87 Difference]: Start difference. First operand 5282 states and 17902 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:15,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:27:15,816 INFO L93 Difference]: Finished difference Result 5634 states and 18942 transitions. [2022-03-03 20:27:15,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-03 20:27:15,816 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:27:15,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:27:15,826 INFO L225 Difference]: With dead ends: 5634 [2022-03-03 20:27:15,826 INFO L226 Difference]: Without dead ends: 5558 [2022-03-03 20:27:15,827 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 395 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=189, Invalid=1791, Unknown=0, NotChecked=0, Total=1980 [2022-03-03 20:27:15,827 INFO L933 BasicCegarLoop]: 115 mSDtfsCounter, 242 mSDsluCounter, 1227 mSDsCounter, 0 mSdLazyCounter, 1671 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 1033 SdHoareTripleChecker+Invalid, 1711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1671 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:27:15,827 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [242 Valid, 1033 Invalid, 1711 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1671 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:27:15,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5558 states. [2022-03-03 20:27:15,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5558 to 5326. [2022-03-03 20:27:15,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5326 states, 5325 states have (on average 3.3862910798122066) internal successors, (18032), 5325 states have internal predecessors, (18032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:15,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5326 states to 5326 states and 18032 transitions. [2022-03-03 20:27:15,891 INFO L78 Accepts]: Start accepts. Automaton has 5326 states and 18032 transitions. Word has length 39 [2022-03-03 20:27:15,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:27:15,891 INFO L470 AbstractCegarLoop]: Abstraction has 5326 states and 18032 transitions. [2022-03-03 20:27:15,891 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:15,892 INFO L276 IsEmpty]: Start isEmpty. Operand 5326 states and 18032 transitions. [2022-03-03 20:27:15,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:27:15,898 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:27:15,898 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:27:15,898 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable375 [2022-03-03 20:27:15,898 INFO L402 AbstractCegarLoop]: === Iteration 377 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:27:15,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:27:15,898 INFO L85 PathProgramCache]: Analyzing trace with hash -2011096052, now seen corresponding path program 377 times [2022-03-03 20:27:15,898 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:27:15,898 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242948007] [2022-03-03 20:27:15,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:27:15,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:27:15,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:27:16,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:27:16,102 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:27:16,102 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242948007] [2022-03-03 20:27:16,102 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242948007] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:27:16,102 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:27:16,102 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:27:16,102 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940021369] [2022-03-03 20:27:16,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:27:16,102 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:27:16,102 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:27:16,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:27:16,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:27:16,103 INFO L87 Difference]: Start difference. First operand 5326 states and 18032 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:17,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:27:17,159 INFO L93 Difference]: Finished difference Result 5616 states and 18888 transitions. [2022-03-03 20:27:17,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 20:27:17,159 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:27:17,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:27:17,169 INFO L225 Difference]: With dead ends: 5616 [2022-03-03 20:27:17,169 INFO L226 Difference]: Without dead ends: 5550 [2022-03-03 20:27:17,170 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 453 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=207, Invalid=2049, Unknown=0, NotChecked=0, Total=2256 [2022-03-03 20:27:17,170 INFO L933 BasicCegarLoop]: 116 mSDtfsCounter, 273 mSDsluCounter, 1316 mSDsCounter, 0 mSdLazyCounter, 1771 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 1124 SdHoareTripleChecker+Invalid, 1822 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 1771 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:27:17,170 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [273 Valid, 1124 Invalid, 1822 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 1771 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:27:17,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5550 states. [2022-03-03 20:27:17,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5550 to 5318. [2022-03-03 20:27:17,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5318 states, 5317 states have (on average 3.386872296407749) internal successors, (18008), 5317 states have internal predecessors, (18008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:17,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5318 states to 5318 states and 18008 transitions. [2022-03-03 20:27:17,236 INFO L78 Accepts]: Start accepts. Automaton has 5318 states and 18008 transitions. Word has length 39 [2022-03-03 20:27:17,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:27:17,236 INFO L470 AbstractCegarLoop]: Abstraction has 5318 states and 18008 transitions. [2022-03-03 20:27:17,236 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:17,236 INFO L276 IsEmpty]: Start isEmpty. Operand 5318 states and 18008 transitions. [2022-03-03 20:27:17,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:27:17,263 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:27:17,263 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:27:17,263 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable376 [2022-03-03 20:27:17,263 INFO L402 AbstractCegarLoop]: === Iteration 378 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:27:17,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:27:17,263 INFO L85 PathProgramCache]: Analyzing trace with hash 2001605590, now seen corresponding path program 378 times [2022-03-03 20:27:17,263 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:27:17,263 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690855573] [2022-03-03 20:27:17,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:27:17,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:27:17,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:27:17,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:27:17,481 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:27:17,481 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690855573] [2022-03-03 20:27:17,481 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690855573] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:27:17,481 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:27:17,481 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:27:17,481 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573054485] [2022-03-03 20:27:17,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:27:17,482 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:27:17,482 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:27:17,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:27:17,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:27:17,482 INFO L87 Difference]: Start difference. First operand 5318 states and 18008 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:18,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:27:18,386 INFO L93 Difference]: Finished difference Result 5629 states and 18921 transitions. [2022-03-03 20:27:18,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 20:27:18,386 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:27:18,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:27:18,396 INFO L225 Difference]: With dead ends: 5629 [2022-03-03 20:27:18,396 INFO L226 Difference]: Without dead ends: 5499 [2022-03-03 20:27:18,396 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 422 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=201, Invalid=1961, Unknown=0, NotChecked=0, Total=2162 [2022-03-03 20:27:18,397 INFO L933 BasicCegarLoop]: 121 mSDtfsCounter, 263 mSDsluCounter, 1371 mSDsCounter, 0 mSdLazyCounter, 1771 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 1187 SdHoareTripleChecker+Invalid, 1822 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 1771 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:27:18,397 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [263 Valid, 1187 Invalid, 1822 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 1771 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:27:18,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5499 states. [2022-03-03 20:27:18,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5499 to 5282. [2022-03-03 20:27:18,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5282 states, 5281 states have (on average 3.3883734141261126) internal successors, (17894), 5281 states have internal predecessors, (17894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:18,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5282 states to 5282 states and 17894 transitions. [2022-03-03 20:27:18,460 INFO L78 Accepts]: Start accepts. Automaton has 5282 states and 17894 transitions. Word has length 39 [2022-03-03 20:27:18,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:27:18,460 INFO L470 AbstractCegarLoop]: Abstraction has 5282 states and 17894 transitions. [2022-03-03 20:27:18,460 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:18,460 INFO L276 IsEmpty]: Start isEmpty. Operand 5282 states and 17894 transitions. [2022-03-03 20:27:18,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:27:18,467 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:27:18,467 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:27:18,467 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable377 [2022-03-03 20:27:18,467 INFO L402 AbstractCegarLoop]: === Iteration 379 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:27:18,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:27:18,467 INFO L85 PathProgramCache]: Analyzing trace with hash -1245843900, now seen corresponding path program 379 times [2022-03-03 20:27:18,467 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:27:18,467 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574957737] [2022-03-03 20:27:18,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:27:18,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:27:18,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:27:18,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:27:18,658 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:27:18,658 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574957737] [2022-03-03 20:27:18,659 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574957737] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:27:18,659 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:27:18,659 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:27:18,659 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25390359] [2022-03-03 20:27:18,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:27:18,659 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:27:18,659 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:27:18,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:27:18,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:27:18,659 INFO L87 Difference]: Start difference. First operand 5282 states and 17894 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:20,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:27:20,229 INFO L93 Difference]: Finished difference Result 5884 states and 19567 transitions. [2022-03-03 20:27:20,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2022-03-03 20:27:20,229 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:27:20,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:27:20,241 INFO L225 Difference]: With dead ends: 5884 [2022-03-03 20:27:20,241 INFO L226 Difference]: Without dead ends: 5820 [2022-03-03 20:27:20,242 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1391 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=416, Invalid=4554, Unknown=0, NotChecked=0, Total=4970 [2022-03-03 20:27:20,242 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 344 mSDsluCounter, 1640 mSDsCounter, 0 mSdLazyCounter, 2363 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 1382 SdHoareTripleChecker+Invalid, 2445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 2363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-03 20:27:20,242 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [344 Valid, 1382 Invalid, 2445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 2363 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-03 20:27:20,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5820 states. [2022-03-03 20:27:20,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5820 to 5292. [2022-03-03 20:27:20,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5292 states, 5291 states have (on average 3.3883953883953883) internal successors, (17928), 5291 states have internal predecessors, (17928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:20,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5292 states to 5292 states and 17928 transitions. [2022-03-03 20:27:20,346 INFO L78 Accepts]: Start accepts. Automaton has 5292 states and 17928 transitions. Word has length 39 [2022-03-03 20:27:20,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:27:20,347 INFO L470 AbstractCegarLoop]: Abstraction has 5292 states and 17928 transitions. [2022-03-03 20:27:20,347 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:20,347 INFO L276 IsEmpty]: Start isEmpty. Operand 5292 states and 17928 transitions. [2022-03-03 20:27:20,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:27:20,354 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:27:20,354 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:27:20,354 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable378 [2022-03-03 20:27:20,355 INFO L402 AbstractCegarLoop]: === Iteration 380 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:27:20,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:27:20,355 INFO L85 PathProgramCache]: Analyzing trace with hash -327360330, now seen corresponding path program 380 times [2022-03-03 20:27:20,355 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:27:20,355 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702615764] [2022-03-03 20:27:20,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:27:20,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:27:20,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:27:20,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:27:20,553 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:27:20,553 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702615764] [2022-03-03 20:27:20,553 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702615764] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:27:20,554 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:27:20,554 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:27:20,554 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822702400] [2022-03-03 20:27:20,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:27:20,554 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:27:20,554 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:27:20,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:27:20,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:27:20,554 INFO L87 Difference]: Start difference. First operand 5292 states and 17928 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:21,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:27:21,789 INFO L93 Difference]: Finished difference Result 5732 states and 19160 transitions. [2022-03-03 20:27:21,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-03 20:27:21,789 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:27:21,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:27:21,800 INFO L225 Difference]: With dead ends: 5732 [2022-03-03 20:27:21,800 INFO L226 Difference]: Without dead ends: 5689 [2022-03-03 20:27:21,801 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 614 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=261, Invalid=2495, Unknown=0, NotChecked=0, Total=2756 [2022-03-03 20:27:21,801 INFO L933 BasicCegarLoop]: 111 mSDtfsCounter, 275 mSDsluCounter, 1401 mSDsCounter, 0 mSdLazyCounter, 1964 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 1090 SdHoareTripleChecker+Invalid, 2014 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 1964 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:27:21,801 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [275 Valid, 1090 Invalid, 2014 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 1964 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:27:21,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5689 states. [2022-03-03 20:27:21,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5689 to 5298. [2022-03-03 20:27:21,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5298 states, 5297 states have (on average 3.387011515952426) internal successors, (17941), 5297 states have internal predecessors, (17941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:21,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5298 states to 5298 states and 17941 transitions. [2022-03-03 20:27:21,869 INFO L78 Accepts]: Start accepts. Automaton has 5298 states and 17941 transitions. Word has length 39 [2022-03-03 20:27:21,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:27:21,869 INFO L470 AbstractCegarLoop]: Abstraction has 5298 states and 17941 transitions. [2022-03-03 20:27:21,869 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:21,869 INFO L276 IsEmpty]: Start isEmpty. Operand 5298 states and 17941 transitions. [2022-03-03 20:27:21,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:27:21,876 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:27:21,876 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:27:21,876 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable379 [2022-03-03 20:27:21,876 INFO L402 AbstractCegarLoop]: === Iteration 381 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:27:21,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:27:21,876 INFO L85 PathProgramCache]: Analyzing trace with hash -307211596, now seen corresponding path program 381 times [2022-03-03 20:27:21,876 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:27:21,877 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296523399] [2022-03-03 20:27:21,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:27:21,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:27:21,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:27:22,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:27:22,029 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:27:22,029 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296523399] [2022-03-03 20:27:22,029 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296523399] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:27:22,029 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:27:22,029 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:27:22,030 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159197793] [2022-03-03 20:27:22,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:27:22,030 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:27:22,030 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:27:22,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:27:22,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:27:22,030 INFO L87 Difference]: Start difference. First operand 5298 states and 17941 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:23,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:27:23,083 INFO L93 Difference]: Finished difference Result 5695 states and 19078 transitions. [2022-03-03 20:27:23,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-03 20:27:23,083 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:27:23,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:27:23,094 INFO L225 Difference]: With dead ends: 5695 [2022-03-03 20:27:23,094 INFO L226 Difference]: Without dead ends: 5652 [2022-03-03 20:27:23,094 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 614 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=264, Invalid=2492, Unknown=0, NotChecked=0, Total=2756 [2022-03-03 20:27:23,094 INFO L933 BasicCegarLoop]: 110 mSDtfsCounter, 267 mSDsluCounter, 1384 mSDsCounter, 0 mSdLazyCounter, 1928 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 1084 SdHoareTripleChecker+Invalid, 1980 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 1928 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:27:23,094 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [267 Valid, 1084 Invalid, 1980 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 1928 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:27:23,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5652 states. [2022-03-03 20:27:23,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5652 to 5294. [2022-03-03 20:27:23,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5294 states, 5293 states have (on average 3.387681843944833) internal successors, (17931), 5293 states have internal predecessors, (17931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:23,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5294 states to 5294 states and 17931 transitions. [2022-03-03 20:27:23,185 INFO L78 Accepts]: Start accepts. Automaton has 5294 states and 17931 transitions. Word has length 39 [2022-03-03 20:27:23,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:27:23,185 INFO L470 AbstractCegarLoop]: Abstraction has 5294 states and 17931 transitions. [2022-03-03 20:27:23,185 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:23,185 INFO L276 IsEmpty]: Start isEmpty. Operand 5294 states and 17931 transitions. [2022-03-03 20:27:23,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:27:23,191 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:27:23,191 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:27:23,191 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable380 [2022-03-03 20:27:23,191 INFO L402 AbstractCegarLoop]: === Iteration 382 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:27:23,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:27:23,192 INFO L85 PathProgramCache]: Analyzing trace with hash 845291892, now seen corresponding path program 382 times [2022-03-03 20:27:23,192 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:27:23,192 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951854921] [2022-03-03 20:27:23,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:27:23,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:27:23,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:27:23,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:27:23,406 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:27:23,406 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951854921] [2022-03-03 20:27:23,406 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951854921] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:27:23,406 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:27:23,406 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:27:23,406 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329711372] [2022-03-03 20:27:23,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:27:23,406 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:27:23,406 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:27:23,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:27:23,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:27:23,406 INFO L87 Difference]: Start difference. First operand 5294 states and 17931 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:24,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:27:24,662 INFO L93 Difference]: Finished difference Result 5736 states and 19182 transitions. [2022-03-03 20:27:24,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-03-03 20:27:24,662 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:27:24,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:27:24,673 INFO L225 Difference]: With dead ends: 5736 [2022-03-03 20:27:24,673 INFO L226 Difference]: Without dead ends: 5676 [2022-03-03 20:27:24,674 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 805 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=308, Invalid=2998, Unknown=0, NotChecked=0, Total=3306 [2022-03-03 20:27:24,674 INFO L933 BasicCegarLoop]: 117 mSDtfsCounter, 308 mSDsluCounter, 1431 mSDsCounter, 0 mSdLazyCounter, 1988 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 1170 SdHoareTripleChecker+Invalid, 2057 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 1988 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:27:24,674 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [308 Valid, 1170 Invalid, 2057 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 1988 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:27:24,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5676 states. [2022-03-03 20:27:24,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5676 to 5300. [2022-03-03 20:27:24,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5300 states, 5299 states have (on average 3.387809020569919) internal successors, (17952), 5299 states have internal predecessors, (17952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:24,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5300 states to 5300 states and 17952 transitions. [2022-03-03 20:27:24,753 INFO L78 Accepts]: Start accepts. Automaton has 5300 states and 17952 transitions. Word has length 39 [2022-03-03 20:27:24,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:27:24,754 INFO L470 AbstractCegarLoop]: Abstraction has 5300 states and 17952 transitions. [2022-03-03 20:27:24,754 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:24,754 INFO L276 IsEmpty]: Start isEmpty. Operand 5300 states and 17952 transitions. [2022-03-03 20:27:24,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:27:24,761 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:27:24,762 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:27:24,762 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable381 [2022-03-03 20:27:24,762 INFO L402 AbstractCegarLoop]: === Iteration 383 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:27:24,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:27:24,762 INFO L85 PathProgramCache]: Analyzing trace with hash -1234274650, now seen corresponding path program 383 times [2022-03-03 20:27:24,762 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:27:24,762 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603429634] [2022-03-03 20:27:24,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:27:24,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:27:24,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:27:24,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:27:24,904 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:27:24,904 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603429634] [2022-03-03 20:27:24,905 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603429634] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:27:24,905 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:27:24,905 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:27:24,905 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744756623] [2022-03-03 20:27:24,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:27:24,905 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:27:24,905 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:27:24,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:27:24,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:27:24,908 INFO L87 Difference]: Start difference. First operand 5300 states and 17952 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:25,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:27:25,760 INFO L93 Difference]: Finished difference Result 5707 states and 19123 transitions. [2022-03-03 20:27:25,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-03 20:27:25,761 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:27:25,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:27:25,772 INFO L225 Difference]: With dead ends: 5707 [2022-03-03 20:27:25,772 INFO L226 Difference]: Without dead ends: 5631 [2022-03-03 20:27:25,773 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 651 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=260, Invalid=2496, Unknown=0, NotChecked=0, Total=2756 [2022-03-03 20:27:25,773 INFO L933 BasicCegarLoop]: 118 mSDtfsCounter, 267 mSDsluCounter, 1292 mSDsCounter, 0 mSdLazyCounter, 1810 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 1066 SdHoareTripleChecker+Invalid, 1863 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 1810 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 20:27:25,773 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [267 Valid, 1066 Invalid, 1863 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 1810 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 20:27:25,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5631 states. [2022-03-03 20:27:25,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5631 to 5312. [2022-03-03 20:27:25,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5312 states, 5311 states have (on average 3.384673319525513) internal successors, (17976), 5311 states have internal predecessors, (17976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:25,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5312 states to 5312 states and 17976 transitions. [2022-03-03 20:27:25,892 INFO L78 Accepts]: Start accepts. Automaton has 5312 states and 17976 transitions. Word has length 39 [2022-03-03 20:27:25,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:27:25,892 INFO L470 AbstractCegarLoop]: Abstraction has 5312 states and 17976 transitions. [2022-03-03 20:27:25,892 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:25,893 INFO L276 IsEmpty]: Start isEmpty. Operand 5312 states and 17976 transitions. [2022-03-03 20:27:25,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:27:25,902 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:27:25,902 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:27:25,902 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable382 [2022-03-03 20:27:25,902 INFO L402 AbstractCegarLoop]: === Iteration 384 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:27:25,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:27:25,910 INFO L85 PathProgramCache]: Analyzing trace with hash 2042639034, now seen corresponding path program 384 times [2022-03-03 20:27:25,913 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:27:25,915 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064443669] [2022-03-03 20:27:25,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:27:25,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:27:25,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:27:26,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:27:26,138 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:27:26,138 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064443669] [2022-03-03 20:27:26,138 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064443669] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:27:26,138 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:27:26,138 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:27:26,138 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521394438] [2022-03-03 20:27:26,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:27:26,138 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:27:26,138 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:27:26,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:27:26,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:27:26,138 INFO L87 Difference]: Start difference. First operand 5312 states and 17976 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:27,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:27:27,464 INFO L93 Difference]: Finished difference Result 5689 states and 19069 transitions. [2022-03-03 20:27:27,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-03-03 20:27:27,465 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:27:27,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:27:27,475 INFO L225 Difference]: With dead ends: 5689 [2022-03-03 20:27:27,476 INFO L226 Difference]: Without dead ends: 5619 [2022-03-03 20:27:27,476 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 724 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=280, Invalid=2800, Unknown=0, NotChecked=0, Total=3080 [2022-03-03 20:27:27,476 INFO L933 BasicCegarLoop]: 119 mSDtfsCounter, 283 mSDsluCounter, 1442 mSDsCounter, 0 mSdLazyCounter, 1947 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 1183 SdHoareTripleChecker+Invalid, 2013 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 1947 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:27:27,476 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [283 Valid, 1183 Invalid, 2013 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 1947 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:27:27,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5619 states. [2022-03-03 20:27:27,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5619 to 5300. [2022-03-03 20:27:27,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5300 states, 5299 states have (on average 3.386676731458766) internal successors, (17946), 5299 states have internal predecessors, (17946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:27,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5300 states to 5300 states and 17946 transitions. [2022-03-03 20:27:27,544 INFO L78 Accepts]: Start accepts. Automaton has 5300 states and 17946 transitions. Word has length 39 [2022-03-03 20:27:27,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:27:27,544 INFO L470 AbstractCegarLoop]: Abstraction has 5300 states and 17946 transitions. [2022-03-03 20:27:27,544 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:27,544 INFO L276 IsEmpty]: Start isEmpty. Operand 5300 states and 17946 transitions. [2022-03-03 20:27:27,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:27:27,551 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:27:27,551 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:27:27,551 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable383 [2022-03-03 20:27:27,551 INFO L402 AbstractCegarLoop]: === Iteration 385 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:27:27,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:27:27,551 INFO L85 PathProgramCache]: Analyzing trace with hash -1775940392, now seen corresponding path program 385 times [2022-03-03 20:27:27,552 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:27:27,552 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534472610] [2022-03-03 20:27:27,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:27:27,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:27:27,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:27:27,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:27:27,772 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:27:27,772 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534472610] [2022-03-03 20:27:27,772 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534472610] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:27:27,772 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:27:27,772 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:27:27,772 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415295611] [2022-03-03 20:27:27,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:27:27,773 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:27:27,773 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:27:27,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:27:27,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:27:27,773 INFO L87 Difference]: Start difference. First operand 5300 states and 17946 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:29,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:27:29,550 INFO L93 Difference]: Finished difference Result 5861 states and 19500 transitions. [2022-03-03 20:27:29,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-03-03 20:27:29,550 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:27:29,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:27:29,560 INFO L225 Difference]: With dead ends: 5861 [2022-03-03 20:27:29,561 INFO L226 Difference]: Without dead ends: 5797 [2022-03-03 20:27:29,561 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1183 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=366, Invalid=4056, Unknown=0, NotChecked=0, Total=4422 [2022-03-03 20:27:29,561 INFO L933 BasicCegarLoop]: 136 mSDtfsCounter, 320 mSDsluCounter, 1666 mSDsCounter, 0 mSdLazyCounter, 2420 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 320 SdHoareTripleChecker+Valid, 1405 SdHoareTripleChecker+Invalid, 2488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 2420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 20:27:29,561 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [320 Valid, 1405 Invalid, 2488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 2420 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 20:27:29,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5797 states. [2022-03-03 20:27:29,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5797 to 5309. [2022-03-03 20:27:29,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5309 states, 5308 states have (on average 3.3854559155990955) internal successors, (17970), 5308 states have internal predecessors, (17970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:29,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5309 states to 5309 states and 17970 transitions. [2022-03-03 20:27:29,626 INFO L78 Accepts]: Start accepts. Automaton has 5309 states and 17970 transitions. Word has length 39 [2022-03-03 20:27:29,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:27:29,626 INFO L470 AbstractCegarLoop]: Abstraction has 5309 states and 17970 transitions. [2022-03-03 20:27:29,626 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:29,626 INFO L276 IsEmpty]: Start isEmpty. Operand 5309 states and 17970 transitions. [2022-03-03 20:27:29,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:27:29,633 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:27:29,633 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:27:29,633 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable384 [2022-03-03 20:27:29,633 INFO L402 AbstractCegarLoop]: === Iteration 386 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:27:29,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:27:29,633 INFO L85 PathProgramCache]: Analyzing trace with hash 981607674, now seen corresponding path program 386 times [2022-03-03 20:27:29,633 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:27:29,633 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339516762] [2022-03-03 20:27:29,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:27:29,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:27:29,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:27:29,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:27:29,849 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:27:29,850 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339516762] [2022-03-03 20:27:29,850 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339516762] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:27:29,850 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:27:29,850 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:27:29,850 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313237385] [2022-03-03 20:27:29,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:27:29,850 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:27:29,850 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:27:29,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:27:29,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:27:29,850 INFO L87 Difference]: Start difference. First operand 5309 states and 17970 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:30,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:27:30,837 INFO L93 Difference]: Finished difference Result 5712 states and 19100 transitions. [2022-03-03 20:27:30,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-03 20:27:30,837 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:27:30,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:27:30,849 INFO L225 Difference]: With dead ends: 5712 [2022-03-03 20:27:30,849 INFO L226 Difference]: Without dead ends: 5669 [2022-03-03 20:27:30,849 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 511 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=224, Invalid=2226, Unknown=0, NotChecked=0, Total=2450 [2022-03-03 20:27:30,849 INFO L933 BasicCegarLoop]: 112 mSDtfsCounter, 254 mSDsluCounter, 1394 mSDsCounter, 0 mSdLazyCounter, 1985 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 1089 SdHoareTripleChecker+Invalid, 2028 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 1985 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:27:30,849 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [254 Valid, 1089 Invalid, 2028 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 1985 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:27:30,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5669 states. [2022-03-03 20:27:30,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5669 to 5318. [2022-03-03 20:27:30,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5318 states, 5317 states have (on average 3.3836750047018995) internal successors, (17991), 5317 states have internal predecessors, (17991), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:30,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5318 states to 5318 states and 17991 transitions. [2022-03-03 20:27:30,929 INFO L78 Accepts]: Start accepts. Automaton has 5318 states and 17991 transitions. Word has length 39 [2022-03-03 20:27:30,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:27:30,929 INFO L470 AbstractCegarLoop]: Abstraction has 5318 states and 17991 transitions. [2022-03-03 20:27:30,929 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:30,929 INFO L276 IsEmpty]: Start isEmpty. Operand 5318 states and 17991 transitions. [2022-03-03 20:27:30,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:27:30,937 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:27:30,937 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:27:30,937 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable385 [2022-03-03 20:27:30,937 INFO L402 AbstractCegarLoop]: === Iteration 387 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:27:30,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:27:30,938 INFO L85 PathProgramCache]: Analyzing trace with hash -1563252486, now seen corresponding path program 387 times [2022-03-03 20:27:30,938 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:27:30,938 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625058774] [2022-03-03 20:27:30,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:27:30,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:27:30,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:27:31,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:27:31,134 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:27:31,134 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625058774] [2022-03-03 20:27:31,134 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625058774] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:27:31,134 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:27:31,134 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:27:31,134 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126129010] [2022-03-03 20:27:31,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:27:31,134 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:27:31,134 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:27:31,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:27:31,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:27:31,135 INFO L87 Difference]: Start difference. First operand 5318 states and 17991 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:32,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:27:32,337 INFO L93 Difference]: Finished difference Result 5681 states and 19033 transitions. [2022-03-03 20:27:32,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-03-03 20:27:32,337 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:27:32,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:27:32,347 INFO L225 Difference]: With dead ends: 5681 [2022-03-03 20:27:32,347 INFO L226 Difference]: Without dead ends: 5630 [2022-03-03 20:27:32,347 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 577 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=241, Invalid=2411, Unknown=0, NotChecked=0, Total=2652 [2022-03-03 20:27:32,348 INFO L933 BasicCegarLoop]: 112 mSDtfsCounter, 256 mSDsluCounter, 1391 mSDsCounter, 0 mSdLazyCounter, 1981 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 1088 SdHoareTripleChecker+Invalid, 2030 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1981 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:27:32,348 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [256 Valid, 1088 Invalid, 2030 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1981 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:27:32,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5630 states. [2022-03-03 20:27:32,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5630 to 5312. [2022-03-03 20:27:32,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5312 states, 5311 states have (on average 3.3844850310675954) internal successors, (17975), 5311 states have internal predecessors, (17975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:32,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5312 states to 5312 states and 17975 transitions. [2022-03-03 20:27:32,409 INFO L78 Accepts]: Start accepts. Automaton has 5312 states and 17975 transitions. Word has length 39 [2022-03-03 20:27:32,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:27:32,409 INFO L470 AbstractCegarLoop]: Abstraction has 5312 states and 17975 transitions. [2022-03-03 20:27:32,410 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:32,410 INFO L276 IsEmpty]: Start isEmpty. Operand 5312 states and 17975 transitions. [2022-03-03 20:27:32,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:27:32,416 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:27:32,416 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:27:32,416 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable386 [2022-03-03 20:27:32,416 INFO L402 AbstractCegarLoop]: === Iteration 388 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:27:32,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:27:32,416 INFO L85 PathProgramCache]: Analyzing trace with hash -946034084, now seen corresponding path program 388 times [2022-03-03 20:27:32,417 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:27:32,417 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205707704] [2022-03-03 20:27:32,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:27:32,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:27:32,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:27:32,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:27:32,636 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:27:32,636 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205707704] [2022-03-03 20:27:32,637 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205707704] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:27:32,637 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:27:32,637 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:27:32,637 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574096520] [2022-03-03 20:27:32,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:27:32,637 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:27:32,637 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:27:32,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:27:32,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:27:32,637 INFO L87 Difference]: Start difference. First operand 5312 states and 17975 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:33,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:27:33,788 INFO L93 Difference]: Finished difference Result 5754 states and 19200 transitions. [2022-03-03 20:27:33,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-03-03 20:27:33,788 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:27:33,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:27:33,799 INFO L225 Difference]: With dead ends: 5754 [2022-03-03 20:27:33,799 INFO L226 Difference]: Without dead ends: 5708 [2022-03-03 20:27:33,799 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 719 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=275, Invalid=2805, Unknown=0, NotChecked=0, Total=3080 [2022-03-03 20:27:33,799 INFO L933 BasicCegarLoop]: 118 mSDtfsCounter, 302 mSDsluCounter, 1426 mSDsCounter, 0 mSdLazyCounter, 2013 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 1162 SdHoareTripleChecker+Invalid, 2067 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 2013 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:27:33,799 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [302 Valid, 1162 Invalid, 2067 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 2013 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:27:33,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5708 states. [2022-03-03 20:27:33,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5708 to 5319. [2022-03-03 20:27:33,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5319 states, 5318 states have (on average 3.382850695750282) internal successors, (17990), 5318 states have internal predecessors, (17990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:33,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5319 states to 5319 states and 17990 transitions. [2022-03-03 20:27:33,865 INFO L78 Accepts]: Start accepts. Automaton has 5319 states and 17990 transitions. Word has length 39 [2022-03-03 20:27:33,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:27:33,865 INFO L470 AbstractCegarLoop]: Abstraction has 5319 states and 17990 transitions. [2022-03-03 20:27:33,865 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:33,865 INFO L276 IsEmpty]: Start isEmpty. Operand 5319 states and 17990 transitions. [2022-03-03 20:27:33,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:27:33,872 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:27:33,872 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:27:33,872 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable387 [2022-03-03 20:27:33,872 INFO L402 AbstractCegarLoop]: === Iteration 389 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:27:33,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:27:33,872 INFO L85 PathProgramCache]: Analyzing trace with hash 1913865722, now seen corresponding path program 389 times [2022-03-03 20:27:33,872 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:27:33,872 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039831690] [2022-03-03 20:27:33,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:27:33,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:27:33,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:27:34,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:27:34,032 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:27:34,032 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039831690] [2022-03-03 20:27:34,032 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039831690] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:27:34,032 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:27:34,032 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:27:34,032 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166338584] [2022-03-03 20:27:34,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:27:34,032 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:27:34,032 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:27:34,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:27:34,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:27:34,032 INFO L87 Difference]: Start difference. First operand 5319 states and 17990 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:35,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:27:35,064 INFO L93 Difference]: Finished difference Result 5689 states and 19047 transitions. [2022-03-03 20:27:35,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-03 20:27:35,064 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:27:35,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:27:35,074 INFO L225 Difference]: With dead ends: 5689 [2022-03-03 20:27:35,074 INFO L226 Difference]: Without dead ends: 5634 [2022-03-03 20:27:35,074 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 578 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=243, Invalid=2409, Unknown=0, NotChecked=0, Total=2652 [2022-03-03 20:27:35,074 INFO L933 BasicCegarLoop]: 112 mSDtfsCounter, 257 mSDsluCounter, 1366 mSDsCounter, 0 mSdLazyCounter, 1975 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 1069 SdHoareTripleChecker+Invalid, 2025 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 1975 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:27:35,074 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [257 Valid, 1069 Invalid, 2025 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 1975 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:27:35,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5634 states. [2022-03-03 20:27:35,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5634 to 5316. [2022-03-03 20:27:35,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5316 states, 5315 states have (on average 3.3832549388523048) internal successors, (17982), 5315 states have internal predecessors, (17982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:35,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5316 states to 5316 states and 17982 transitions. [2022-03-03 20:27:35,136 INFO L78 Accepts]: Start accepts. Automaton has 5316 states and 17982 transitions. Word has length 39 [2022-03-03 20:27:35,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:27:35,136 INFO L470 AbstractCegarLoop]: Abstraction has 5316 states and 17982 transitions. [2022-03-03 20:27:35,136 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:35,136 INFO L276 IsEmpty]: Start isEmpty. Operand 5316 states and 17982 transitions. [2022-03-03 20:27:35,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:27:35,143 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:27:35,143 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:27:35,143 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable388 [2022-03-03 20:27:35,143 INFO L402 AbstractCegarLoop]: === Iteration 390 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:27:35,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:27:35,144 INFO L85 PathProgramCache]: Analyzing trace with hash 1333249012, now seen corresponding path program 390 times [2022-03-03 20:27:35,144 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:27:35,144 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678368684] [2022-03-03 20:27:35,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:27:35,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:27:35,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:27:35,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:27:35,325 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:27:35,326 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678368684] [2022-03-03 20:27:35,326 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678368684] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:27:35,326 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:27:35,326 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:27:35,326 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132172451] [2022-03-03 20:27:35,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:27:35,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:27:35,326 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:27:35,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:27:35,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:27:35,326 INFO L87 Difference]: Start difference. First operand 5316 states and 17982 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:36,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:27:36,365 INFO L93 Difference]: Finished difference Result 5650 states and 18957 transitions. [2022-03-03 20:27:36,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-03 20:27:36,365 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:27:36,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:27:36,377 INFO L225 Difference]: With dead ends: 5650 [2022-03-03 20:27:36,377 INFO L226 Difference]: Without dead ends: 5574 [2022-03-03 20:27:36,377 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 610 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=249, Invalid=2403, Unknown=0, NotChecked=0, Total=2652 [2022-03-03 20:27:36,377 INFO L933 BasicCegarLoop]: 119 mSDtfsCounter, 252 mSDsluCounter, 1297 mSDsCounter, 0 mSdLazyCounter, 1844 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 1068 SdHoareTripleChecker+Invalid, 1892 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 1844 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:27:36,377 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [252 Valid, 1068 Invalid, 1892 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 1844 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:27:36,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5574 states. [2022-03-03 20:27:36,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5574 to 5330. [2022-03-03 20:27:36,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5330 states, 5329 states have (on average 3.3799962469506473) internal successors, (18012), 5329 states have internal predecessors, (18012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:36,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5330 states to 5330 states and 18012 transitions. [2022-03-03 20:27:36,455 INFO L78 Accepts]: Start accepts. Automaton has 5330 states and 18012 transitions. Word has length 39 [2022-03-03 20:27:36,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:27:36,455 INFO L470 AbstractCegarLoop]: Abstraction has 5330 states and 18012 transitions. [2022-03-03 20:27:36,455 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:36,455 INFO L276 IsEmpty]: Start isEmpty. Operand 5330 states and 18012 transitions. [2022-03-03 20:27:36,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:27:36,463 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:27:36,463 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:27:36,463 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable389 [2022-03-03 20:27:36,463 INFO L402 AbstractCegarLoop]: === Iteration 391 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:27:36,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:27:36,463 INFO L85 PathProgramCache]: Analyzing trace with hash -214673322, now seen corresponding path program 391 times [2022-03-03 20:27:36,463 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:27:36,463 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710296687] [2022-03-03 20:27:36,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:27:36,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:27:36,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:27:36,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:27:36,609 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:27:36,609 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710296687] [2022-03-03 20:27:36,609 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710296687] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:27:36,609 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:27:36,609 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:27:36,609 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722050290] [2022-03-03 20:27:36,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:27:36,609 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:27:36,609 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:27:36,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:27:36,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:27:36,610 INFO L87 Difference]: Start difference. First operand 5330 states and 18012 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:37,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:27:37,543 INFO L93 Difference]: Finished difference Result 5674 states and 18990 transitions. [2022-03-03 20:27:37,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-03-03 20:27:37,544 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:27:37,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:27:37,554 INFO L225 Difference]: With dead ends: 5674 [2022-03-03 20:27:37,554 INFO L226 Difference]: Without dead ends: 5628 [2022-03-03 20:27:37,555 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 681 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=267, Invalid=2703, Unknown=0, NotChecked=0, Total=2970 [2022-03-03 20:27:37,555 INFO L933 BasicCegarLoop]: 119 mSDtfsCounter, 284 mSDsluCounter, 1442 mSDsCounter, 0 mSdLazyCounter, 2001 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 1176 SdHoareTripleChecker+Invalid, 2054 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 2001 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:27:37,555 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [284 Valid, 1176 Invalid, 2054 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 2001 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:27:37,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5628 states. [2022-03-03 20:27:37,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5628 to 5330. [2022-03-03 20:27:37,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5330 states, 5329 states have (on average 3.3799962469506473) internal successors, (18012), 5329 states have internal predecessors, (18012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:37,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5330 states to 5330 states and 18012 transitions. [2022-03-03 20:27:37,627 INFO L78 Accepts]: Start accepts. Automaton has 5330 states and 18012 transitions. Word has length 39 [2022-03-03 20:27:37,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:27:37,627 INFO L470 AbstractCegarLoop]: Abstraction has 5330 states and 18012 transitions. [2022-03-03 20:27:37,627 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:37,627 INFO L276 IsEmpty]: Start isEmpty. Operand 5330 states and 18012 transitions. [2022-03-03 20:27:37,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:27:37,635 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:27:37,635 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:27:37,635 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable390 [2022-03-03 20:27:37,635 INFO L402 AbstractCegarLoop]: === Iteration 392 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:27:37,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:27:37,635 INFO L85 PathProgramCache]: Analyzing trace with hash -1649740812, now seen corresponding path program 392 times [2022-03-03 20:27:37,635 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:27:37,635 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499635886] [2022-03-03 20:27:37,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:27:37,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:27:37,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:27:37,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:27:37,807 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:27:37,807 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499635886] [2022-03-03 20:27:37,815 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499635886] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:27:37,815 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:27:37,815 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:27:37,815 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669433632] [2022-03-03 20:27:37,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:27:37,815 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:27:37,816 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:27:37,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:27:37,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:27:37,816 INFO L87 Difference]: Start difference. First operand 5330 states and 18012 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:38,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:27:38,998 INFO L93 Difference]: Finished difference Result 5602 states and 18822 transitions. [2022-03-03 20:27:38,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-03-03 20:27:38,998 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:27:38,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:27:39,009 INFO L225 Difference]: With dead ends: 5602 [2022-03-03 20:27:39,009 INFO L226 Difference]: Without dead ends: 5530 [2022-03-03 20:27:39,010 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 548 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=234, Invalid=2316, Unknown=0, NotChecked=0, Total=2550 [2022-03-03 20:27:39,010 INFO L933 BasicCegarLoop]: 112 mSDtfsCounter, 242 mSDsluCounter, 1359 mSDsCounter, 0 mSdLazyCounter, 1948 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 1059 SdHoareTripleChecker+Invalid, 1997 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1948 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:27:39,010 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [242 Valid, 1059 Invalid, 1997 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1948 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:27:39,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5530 states. [2022-03-03 20:27:39,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5530 to 5310. [2022-03-03 20:27:39,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5310 states, 5309 states have (on average 3.3834997174609156) internal successors, (17963), 5309 states have internal predecessors, (17963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:39,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5310 states to 5310 states and 17963 transitions. [2022-03-03 20:27:39,078 INFO L78 Accepts]: Start accepts. Automaton has 5310 states and 17963 transitions. Word has length 39 [2022-03-03 20:27:39,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:27:39,078 INFO L470 AbstractCegarLoop]: Abstraction has 5310 states and 17963 transitions. [2022-03-03 20:27:39,078 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:39,078 INFO L276 IsEmpty]: Start isEmpty. Operand 5310 states and 17963 transitions. [2022-03-03 20:27:39,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:27:39,085 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:27:39,085 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:27:39,085 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable391 [2022-03-03 20:27:39,085 INFO L402 AbstractCegarLoop]: === Iteration 393 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:27:39,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:27:39,085 INFO L85 PathProgramCache]: Analyzing trace with hash 2100589592, now seen corresponding path program 393 times [2022-03-03 20:27:39,085 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:27:39,085 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680797232] [2022-03-03 20:27:39,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:27:39,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:27:39,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:27:39,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:27:39,306 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:27:39,306 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680797232] [2022-03-03 20:27:39,306 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680797232] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:27:39,306 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:27:39,306 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:27:39,306 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316256713] [2022-03-03 20:27:39,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:27:39,306 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:27:39,306 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:27:39,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:27:39,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:27:39,307 INFO L87 Difference]: Start difference. First operand 5310 states and 17963 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:40,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:27:40,751 INFO L93 Difference]: Finished difference Result 5762 states and 19200 transitions. [2022-03-03 20:27:40,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-03-03 20:27:40,751 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:27:40,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:27:40,761 INFO L225 Difference]: With dead ends: 5762 [2022-03-03 20:27:40,762 INFO L226 Difference]: Without dead ends: 5711 [2022-03-03 20:27:40,762 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 838 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=315, Invalid=3107, Unknown=0, NotChecked=0, Total=3422 [2022-03-03 20:27:40,762 INFO L933 BasicCegarLoop]: 111 mSDtfsCounter, 312 mSDsluCounter, 1409 mSDsCounter, 0 mSdLazyCounter, 1978 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 1121 SdHoareTripleChecker+Invalid, 2050 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 1978 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-03 20:27:40,762 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [312 Valid, 1121 Invalid, 2050 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 1978 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-03 20:27:40,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5711 states. [2022-03-03 20:27:40,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5711 to 5323. [2022-03-03 20:27:40,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5323 states, 5322 states have (on average 3.381999248402856) internal successors, (17999), 5322 states have internal predecessors, (17999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:40,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5323 states to 5323 states and 17999 transitions. [2022-03-03 20:27:40,828 INFO L78 Accepts]: Start accepts. Automaton has 5323 states and 17999 transitions. Word has length 39 [2022-03-03 20:27:40,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:27:40,828 INFO L470 AbstractCegarLoop]: Abstraction has 5323 states and 17999 transitions. [2022-03-03 20:27:40,828 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:40,828 INFO L276 IsEmpty]: Start isEmpty. Operand 5323 states and 17999 transitions. [2022-03-03 20:27:40,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:27:40,835 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:27:40,835 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:27:40,835 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable392 [2022-03-03 20:27:40,835 INFO L402 AbstractCegarLoop]: === Iteration 394 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:27:40,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:27:40,835 INFO L85 PathProgramCache]: Analyzing trace with hash 2120738326, now seen corresponding path program 394 times [2022-03-03 20:27:40,836 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:27:40,836 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918984454] [2022-03-03 20:27:40,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:27:40,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:27:40,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:27:41,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:27:41,048 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:27:41,048 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918984454] [2022-03-03 20:27:41,048 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918984454] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:27:41,048 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:27:41,049 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:27:41,049 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142033802] [2022-03-03 20:27:41,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:27:41,049 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:27:41,049 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:27:41,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:27:41,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:27:41,049 INFO L87 Difference]: Start difference. First operand 5323 states and 17999 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:42,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:27:42,274 INFO L93 Difference]: Finished difference Result 5729 states and 19122 transitions. [2022-03-03 20:27:42,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-03-03 20:27:42,274 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:27:42,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:27:42,288 INFO L225 Difference]: With dead ends: 5729 [2022-03-03 20:27:42,288 INFO L226 Difference]: Without dead ends: 5686 [2022-03-03 20:27:42,289 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 722 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=292, Invalid=2788, Unknown=0, NotChecked=0, Total=3080 [2022-03-03 20:27:42,289 INFO L933 BasicCegarLoop]: 106 mSDtfsCounter, 286 mSDsluCounter, 1347 mSDsCounter, 0 mSdLazyCounter, 1874 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 1064 SdHoareTripleChecker+Invalid, 1938 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 1874 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:27:42,289 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [286 Valid, 1064 Invalid, 1938 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 1874 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:27:42,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5686 states. [2022-03-03 20:27:42,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5686 to 5323. [2022-03-03 20:27:42,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5323 states, 5322 states have (on average 3.3816234498308906) internal successors, (17997), 5322 states have internal predecessors, (17997), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:42,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5323 states to 5323 states and 17997 transitions. [2022-03-03 20:27:42,372 INFO L78 Accepts]: Start accepts. Automaton has 5323 states and 17997 transitions. Word has length 39 [2022-03-03 20:27:42,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:27:42,372 INFO L470 AbstractCegarLoop]: Abstraction has 5323 states and 17997 transitions. [2022-03-03 20:27:42,372 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:42,372 INFO L276 IsEmpty]: Start isEmpty. Operand 5323 states and 17997 transitions. [2022-03-03 20:27:42,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:27:42,380 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:27:42,380 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:27:42,380 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable393 [2022-03-03 20:27:42,380 INFO L402 AbstractCegarLoop]: === Iteration 395 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:27:42,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:27:42,380 INFO L85 PathProgramCache]: Analyzing trace with hash -1021725482, now seen corresponding path program 395 times [2022-03-03 20:27:42,380 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:27:42,380 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756018049] [2022-03-03 20:27:42,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:27:42,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:27:42,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:27:42,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:27:42,596 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:27:42,596 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756018049] [2022-03-03 20:27:42,596 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756018049] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:27:42,596 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:27:42,596 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:27:42,596 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227728440] [2022-03-03 20:27:42,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:27:42,596 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:27:42,596 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:27:42,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:27:42,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:27:42,596 INFO L87 Difference]: Start difference. First operand 5323 states and 17997 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:43,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:27:43,983 INFO L93 Difference]: Finished difference Result 5794 states and 19270 transitions. [2022-03-03 20:27:43,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-03-03 20:27:43,983 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:27:43,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:27:43,993 INFO L225 Difference]: With dead ends: 5794 [2022-03-03 20:27:43,993 INFO L226 Difference]: Without dead ends: 5734 [2022-03-03 20:27:43,994 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 922 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=338, Invalid=3322, Unknown=0, NotChecked=0, Total=3660 [2022-03-03 20:27:43,994 INFO L933 BasicCegarLoop]: 114 mSDtfsCounter, 334 mSDsluCounter, 1427 mSDsCounter, 0 mSdLazyCounter, 1894 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 1177 SdHoareTripleChecker+Invalid, 1973 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 1894 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:27:43,994 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [334 Valid, 1177 Invalid, 1973 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 1894 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:27:44,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5734 states. [2022-03-03 20:27:44,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5734 to 5319. [2022-03-03 20:27:44,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5319 states, 5318 states have (on average 3.382098533283189) internal successors, (17986), 5318 states have internal predecessors, (17986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:44,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5319 states to 5319 states and 17986 transitions. [2022-03-03 20:27:44,057 INFO L78 Accepts]: Start accepts. Automaton has 5319 states and 17986 transitions. Word has length 39 [2022-03-03 20:27:44,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:27:44,057 INFO L470 AbstractCegarLoop]: Abstraction has 5319 states and 17986 transitions. [2022-03-03 20:27:44,057 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:44,057 INFO L276 IsEmpty]: Start isEmpty. Operand 5319 states and 17986 transitions. [2022-03-03 20:27:44,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:27:44,064 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:27:44,064 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:27:44,064 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable394 [2022-03-03 20:27:44,064 INFO L402 AbstractCegarLoop]: === Iteration 396 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:27:44,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:27:44,064 INFO L85 PathProgramCache]: Analyzing trace with hash -1089470362, now seen corresponding path program 396 times [2022-03-03 20:27:44,064 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:27:44,064 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276154124] [2022-03-03 20:27:44,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:27:44,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:27:44,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:27:44,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:27:44,223 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:27:44,223 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276154124] [2022-03-03 20:27:44,223 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276154124] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:27:44,223 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:27:44,223 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:27:44,223 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67948338] [2022-03-03 20:27:44,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:27:44,223 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:27:44,223 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:27:44,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:27:44,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:27:44,223 INFO L87 Difference]: Start difference. First operand 5319 states and 17986 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:45,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:27:45,327 INFO L93 Difference]: Finished difference Result 5736 states and 19120 transitions. [2022-03-03 20:27:45,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-03-03 20:27:45,327 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:27:45,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:27:45,338 INFO L225 Difference]: With dead ends: 5736 [2022-03-03 20:27:45,338 INFO L226 Difference]: Without dead ends: 5693 [2022-03-03 20:27:45,338 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 686 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=272, Invalid=2698, Unknown=0, NotChecked=0, Total=2970 [2022-03-03 20:27:45,339 INFO L933 BasicCegarLoop]: 110 mSDtfsCounter, 296 mSDsluCounter, 1386 mSDsCounter, 0 mSdLazyCounter, 1973 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 1101 SdHoareTripleChecker+Invalid, 2030 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 1973 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:27:45,339 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [296 Valid, 1101 Invalid, 2030 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 1973 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:27:45,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5693 states. [2022-03-03 20:27:45,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5693 to 5328. [2022-03-03 20:27:45,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5328 states, 5327 states have (on average 3.3803266378824857) internal successors, (18007), 5327 states have internal predecessors, (18007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:45,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5328 states to 5328 states and 18007 transitions. [2022-03-03 20:27:45,414 INFO L78 Accepts]: Start accepts. Automaton has 5328 states and 18007 transitions. Word has length 39 [2022-03-03 20:27:45,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:27:45,414 INFO L470 AbstractCegarLoop]: Abstraction has 5328 states and 18007 transitions. [2022-03-03 20:27:45,414 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:45,414 INFO L276 IsEmpty]: Start isEmpty. Operand 5328 states and 18007 transitions. [2022-03-03 20:27:45,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:27:45,422 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:27:45,422 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:27:45,422 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable395 [2022-03-03 20:27:45,422 INFO L402 AbstractCegarLoop]: === Iteration 397 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:27:45,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:27:45,422 INFO L85 PathProgramCache]: Analyzing trace with hash 660636774, now seen corresponding path program 397 times [2022-03-03 20:27:45,422 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:27:45,422 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406725593] [2022-03-03 20:27:45,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:27:45,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:27:45,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:27:45,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:27:45,567 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:27:45,567 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406725593] [2022-03-03 20:27:45,567 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406725593] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:27:45,567 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:27:45,568 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:27:45,568 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85261831] [2022-03-03 20:27:45,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:27:45,568 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:27:45,568 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:27:45,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:27:45,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:27:45,568 INFO L87 Difference]: Start difference. First operand 5328 states and 18007 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:46,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:27:46,638 INFO L93 Difference]: Finished difference Result 5770 states and 19204 transitions. [2022-03-03 20:27:46,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-03-03 20:27:46,638 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:27:46,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:27:46,650 INFO L225 Difference]: With dead ends: 5770 [2022-03-03 20:27:46,650 INFO L226 Difference]: Without dead ends: 5670 [2022-03-03 20:27:46,650 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 762 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=288, Invalid=2904, Unknown=0, NotChecked=0, Total=3192 [2022-03-03 20:27:46,650 INFO L933 BasicCegarLoop]: 109 mSDtfsCounter, 304 mSDsluCounter, 1376 mSDsCounter, 0 mSdLazyCounter, 1945 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 1087 SdHoareTripleChecker+Invalid, 2007 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1945 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:27:46,650 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [304 Valid, 1087 Invalid, 2007 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 1945 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:27:46,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5670 states. [2022-03-03 20:27:46,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5670 to 5330. [2022-03-03 20:27:46,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5330 states, 5329 states have (on average 3.3786826796772376) internal successors, (18005), 5329 states have internal predecessors, (18005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:46,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5330 states to 5330 states and 18005 transitions. [2022-03-03 20:27:46,731 INFO L78 Accepts]: Start accepts. Automaton has 5330 states and 18005 transitions. Word has length 39 [2022-03-03 20:27:46,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:27:46,731 INFO L470 AbstractCegarLoop]: Abstraction has 5330 states and 18005 transitions. [2022-03-03 20:27:46,731 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:46,731 INFO L276 IsEmpty]: Start isEmpty. Operand 5330 states and 18005 transitions. [2022-03-03 20:27:46,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:27:46,739 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:27:46,739 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:27:46,739 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable396 [2022-03-03 20:27:46,739 INFO L402 AbstractCegarLoop]: === Iteration 398 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:27:46,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:27:46,739 INFO L85 PathProgramCache]: Analyzing trace with hash 1277855176, now seen corresponding path program 398 times [2022-03-03 20:27:46,739 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:27:46,740 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581939668] [2022-03-03 20:27:46,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:27:46,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:27:46,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:27:46,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:27:46,882 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:27:46,882 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581939668] [2022-03-03 20:27:46,882 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581939668] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:27:46,882 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:27:46,882 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:27:46,882 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951083315] [2022-03-03 20:27:46,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:27:46,882 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:27:46,882 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:27:46,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:27:46,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:27:46,883 INFO L87 Difference]: Start difference. First operand 5330 states and 18005 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:47,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:27:47,915 INFO L93 Difference]: Finished difference Result 5722 states and 19087 transitions. [2022-03-03 20:27:47,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-03-03 20:27:47,915 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:27:47,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:27:47,927 INFO L225 Difference]: With dead ends: 5722 [2022-03-03 20:27:47,927 INFO L226 Difference]: Without dead ends: 5676 [2022-03-03 20:27:47,928 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 802 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=301, Invalid=3005, Unknown=0, NotChecked=0, Total=3306 [2022-03-03 20:27:47,928 INFO L933 BasicCegarLoop]: 115 mSDtfsCounter, 314 mSDsluCounter, 1411 mSDsCounter, 0 mSdLazyCounter, 1924 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 314 SdHoareTripleChecker+Valid, 1161 SdHoareTripleChecker+Invalid, 1985 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 1924 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:27:47,928 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [314 Valid, 1161 Invalid, 1985 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 1924 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:27:47,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5676 states. [2022-03-03 20:27:47,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5676 to 5328. [2022-03-03 20:27:47,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5328 states, 5327 states have (on average 3.379388023277642) internal successors, (18002), 5327 states have internal predecessors, (18002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:48,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5328 states to 5328 states and 18002 transitions. [2022-03-03 20:27:48,007 INFO L78 Accepts]: Start accepts. Automaton has 5328 states and 18002 transitions. Word has length 39 [2022-03-03 20:27:48,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:27:48,007 INFO L470 AbstractCegarLoop]: Abstraction has 5328 states and 18002 transitions. [2022-03-03 20:27:48,007 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:48,007 INFO L276 IsEmpty]: Start isEmpty. Operand 5328 states and 18002 transitions. [2022-03-03 20:27:48,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:27:48,015 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:27:48,015 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:27:48,015 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable397 [2022-03-03 20:27:48,015 INFO L402 AbstractCegarLoop]: === Iteration 399 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:27:48,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:27:48,016 INFO L85 PathProgramCache]: Analyzing trace with hash -157212314, now seen corresponding path program 399 times [2022-03-03 20:27:48,016 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:27:48,016 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060162198] [2022-03-03 20:27:48,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:27:48,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:27:48,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:27:48,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:27:48,208 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:27:48,208 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060162198] [2022-03-03 20:27:48,208 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060162198] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:27:48,208 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:27:48,208 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:27:48,208 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923515654] [2022-03-03 20:27:48,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:27:48,208 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:27:48,208 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:27:48,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:27:48,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:27:48,209 INFO L87 Difference]: Start difference. First operand 5328 states and 18002 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:49,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:27:49,432 INFO L93 Difference]: Finished difference Result 5691 states and 19011 transitions. [2022-03-03 20:27:49,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-03-03 20:27:49,432 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:27:49,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:27:49,442 INFO L225 Difference]: With dead ends: 5691 [2022-03-03 20:27:49,443 INFO L226 Difference]: Without dead ends: 5630 [2022-03-03 20:27:49,443 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 650 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=265, Invalid=2597, Unknown=0, NotChecked=0, Total=2862 [2022-03-03 20:27:49,443 INFO L933 BasicCegarLoop]: 109 mSDtfsCounter, 275 mSDsluCounter, 1346 mSDsCounter, 0 mSdLazyCounter, 1943 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 1058 SdHoareTripleChecker+Invalid, 2001 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 1943 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:27:49,443 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [275 Valid, 1058 Invalid, 2001 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 1943 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:27:49,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5630 states. [2022-03-03 20:27:49,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5630 to 5319. [2022-03-03 20:27:49,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5319 states, 5318 states have (on average 3.38097028958255) internal successors, (17980), 5318 states have internal predecessors, (17980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:49,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5319 states to 5319 states and 17980 transitions. [2022-03-03 20:27:49,509 INFO L78 Accepts]: Start accepts. Automaton has 5319 states and 17980 transitions. Word has length 39 [2022-03-03 20:27:49,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:27:49,509 INFO L470 AbstractCegarLoop]: Abstraction has 5319 states and 17980 transitions. [2022-03-03 20:27:49,509 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:49,509 INFO L276 IsEmpty]: Start isEmpty. Operand 5319 states and 17980 transitions. [2022-03-03 20:27:49,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:27:49,516 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:27:49,516 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:27:49,516 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable398 [2022-03-03 20:27:49,516 INFO L402 AbstractCegarLoop]: === Iteration 400 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:27:49,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:27:49,516 INFO L85 PathProgramCache]: Analyzing trace with hash -1899265356, now seen corresponding path program 400 times [2022-03-03 20:27:49,516 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:27:49,516 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111752750] [2022-03-03 20:27:49,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:27:49,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:27:49,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:27:49,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:27:49,732 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:27:49,732 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111752750] [2022-03-03 20:27:49,732 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111752750] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:27:49,732 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:27:49,732 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:27:49,733 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47293994] [2022-03-03 20:27:49,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:27:49,733 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:27:49,733 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:27:49,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:27:49,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:27:49,733 INFO L87 Difference]: Start difference. First operand 5319 states and 17980 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:50,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:27:50,876 INFO L93 Difference]: Finished difference Result 5622 states and 18854 transitions. [2022-03-03 20:27:50,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-03-03 20:27:50,876 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:27:50,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:27:50,889 INFO L225 Difference]: With dead ends: 5622 [2022-03-03 20:27:50,889 INFO L226 Difference]: Without dead ends: 5579 [2022-03-03 20:27:50,890 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 511 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=235, Invalid=2215, Unknown=0, NotChecked=0, Total=2450 [2022-03-03 20:27:50,890 INFO L933 BasicCegarLoop]: 104 mSDtfsCounter, 239 mSDsluCounter, 1293 mSDsCounter, 0 mSdLazyCounter, 1867 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 1009 SdHoareTripleChecker+Invalid, 1911 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 1867 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:27:50,890 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [239 Valid, 1009 Invalid, 1911 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 1867 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:27:50,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5579 states. [2022-03-03 20:27:50,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5579 to 5315. [2022-03-03 20:27:50,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5315 states, 5314 states have (on average 3.3816334211516748) internal successors, (17970), 5314 states have internal predecessors, (17970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:50,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5315 states to 5315 states and 17970 transitions. [2022-03-03 20:27:50,976 INFO L78 Accepts]: Start accepts. Automaton has 5315 states and 17970 transitions. Word has length 39 [2022-03-03 20:27:50,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:27:50,977 INFO L470 AbstractCegarLoop]: Abstraction has 5315 states and 17970 transitions. [2022-03-03 20:27:50,977 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:50,977 INFO L276 IsEmpty]: Start isEmpty. Operand 5315 states and 17970 transitions. [2022-03-03 20:27:50,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:27:50,985 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:27:50,985 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:27:50,985 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable399 [2022-03-03 20:27:50,985 INFO L402 AbstractCegarLoop]: === Iteration 401 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:27:50,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:27:50,985 INFO L85 PathProgramCache]: Analyzing trace with hash -1439915432, now seen corresponding path program 401 times [2022-03-03 20:27:50,985 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:27:50,985 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793674054] [2022-03-03 20:27:50,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:27:50,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:27:50,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:27:51,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:27:51,193 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:27:51,193 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793674054] [2022-03-03 20:27:51,193 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793674054] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:27:51,193 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:27:51,193 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:27:51,193 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672425480] [2022-03-03 20:27:51,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:27:51,193 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:27:51,193 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:27:51,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:27:51,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:27:51,194 INFO L87 Difference]: Start difference. First operand 5315 states and 17970 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:52,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:27:52,353 INFO L93 Difference]: Finished difference Result 5624 states and 18861 transitions. [2022-03-03 20:27:52,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-03-03 20:27:52,353 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:27:52,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:27:52,364 INFO L225 Difference]: With dead ends: 5624 [2022-03-03 20:27:52,364 INFO L226 Difference]: Without dead ends: 5573 [2022-03-03 20:27:52,365 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 543 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=239, Invalid=2311, Unknown=0, NotChecked=0, Total=2550 [2022-03-03 20:27:52,365 INFO L933 BasicCegarLoop]: 106 mSDtfsCounter, 244 mSDsluCounter, 1307 mSDsCounter, 0 mSdLazyCounter, 1919 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 1020 SdHoareTripleChecker+Invalid, 1965 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 1919 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:27:52,365 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [244 Valid, 1020 Invalid, 1965 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 1919 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:27:52,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5573 states. [2022-03-03 20:27:52,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5573 to 5309. [2022-03-03 20:27:52,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5309 states, 5308 states have (on average 3.382629992464205) internal successors, (17955), 5308 states have internal predecessors, (17955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:52,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5309 states to 5309 states and 17955 transitions. [2022-03-03 20:27:52,440 INFO L78 Accepts]: Start accepts. Automaton has 5309 states and 17955 transitions. Word has length 39 [2022-03-03 20:27:52,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:27:52,440 INFO L470 AbstractCegarLoop]: Abstraction has 5309 states and 17955 transitions. [2022-03-03 20:27:52,440 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:52,440 INFO L276 IsEmpty]: Start isEmpty. Operand 5309 states and 17955 transitions. [2022-03-03 20:27:52,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:27:52,448 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:27:52,448 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:27:52,448 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable400 [2022-03-03 20:27:52,448 INFO L402 AbstractCegarLoop]: === Iteration 402 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:27:52,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:27:52,449 INFO L85 PathProgramCache]: Analyzing trace with hash -1065582924, now seen corresponding path program 402 times [2022-03-03 20:27:52,449 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:27:52,449 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561084070] [2022-03-03 20:27:52,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:27:52,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:27:52,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:27:52,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:27:52,617 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:27:52,617 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561084070] [2022-03-03 20:27:52,617 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561084070] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:27:52,618 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:27:52,618 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:27:52,618 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571733138] [2022-03-03 20:27:52,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:27:52,618 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:27:52,618 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:27:52,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:27:52,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:27:52,618 INFO L87 Difference]: Start difference. First operand 5309 states and 17955 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:55,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:27:55,281 INFO L93 Difference]: Finished difference Result 9865 states and 32666 transitions. [2022-03-03 20:27:55,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2022-03-03 20:27:55,281 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:27:55,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:27:55,300 INFO L225 Difference]: With dead ends: 9865 [2022-03-03 20:27:55,300 INFO L226 Difference]: Without dead ends: 9742 [2022-03-03 20:27:55,301 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3079 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=742, Invalid=8764, Unknown=0, NotChecked=0, Total=9506 [2022-03-03 20:27:55,301 INFO L933 BasicCegarLoop]: 281 mSDtfsCounter, 546 mSDsluCounter, 3446 mSDsCounter, 0 mSdLazyCounter, 4080 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 546 SdHoareTripleChecker+Valid, 3155 SdHoareTripleChecker+Invalid, 4206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 4080 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-03-03 20:27:55,301 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [546 Valid, 3155 Invalid, 4206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 4080 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-03-03 20:27:55,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9742 states. [2022-03-03 20:27:55,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9742 to 5434. [2022-03-03 20:27:55,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5434 states, 5433 states have (on average 3.3817412111172462) internal successors, (18373), 5433 states have internal predecessors, (18373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:55,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5434 states to 5434 states and 18373 transitions. [2022-03-03 20:27:55,415 INFO L78 Accepts]: Start accepts. Automaton has 5434 states and 18373 transitions. Word has length 39 [2022-03-03 20:27:55,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:27:55,415 INFO L470 AbstractCegarLoop]: Abstraction has 5434 states and 18373 transitions. [2022-03-03 20:27:55,416 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:55,416 INFO L276 IsEmpty]: Start isEmpty. Operand 5434 states and 18373 transitions. [2022-03-03 20:27:55,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:27:55,422 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:27:55,422 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:27:55,422 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable401 [2022-03-03 20:27:55,422 INFO L402 AbstractCegarLoop]: === Iteration 403 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:27:55,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:27:55,423 INFO L85 PathProgramCache]: Analyzing trace with hash 1471399958, now seen corresponding path program 403 times [2022-03-03 20:27:55,423 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:27:55,423 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127599143] [2022-03-03 20:27:55,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:27:55,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:27:55,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:27:55,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:27:55,565 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:27:55,565 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127599143] [2022-03-03 20:27:55,565 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127599143] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:27:55,565 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:27:55,565 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:27:55,565 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978556704] [2022-03-03 20:27:55,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:27:55,565 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:27:55,565 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:27:55,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:27:55,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:27:55,565 INFO L87 Difference]: Start difference. First operand 5434 states and 18373 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:58,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:27:58,358 INFO L93 Difference]: Finished difference Result 9720 states and 32238 transitions. [2022-03-03 20:27:58,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2022-03-03 20:27:58,358 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:27:58,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:27:58,376 INFO L225 Difference]: With dead ends: 9720 [2022-03-03 20:27:58,376 INFO L226 Difference]: Without dead ends: 9525 [2022-03-03 20:27:58,377 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2920 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=705, Invalid=8415, Unknown=0, NotChecked=0, Total=9120 [2022-03-03 20:27:58,377 INFO L933 BasicCegarLoop]: 292 mSDtfsCounter, 515 mSDsluCounter, 3537 mSDsCounter, 0 mSdLazyCounter, 4207 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 515 SdHoareTripleChecker+Valid, 3263 SdHoareTripleChecker+Invalid, 4330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 4207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-03-03 20:27:58,378 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [515 Valid, 3263 Invalid, 4330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 4207 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-03-03 20:27:58,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9525 states. [2022-03-03 20:27:58,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9525 to 5493. [2022-03-03 20:27:58,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5493 states, 5492 states have (on average 3.3818281136198105) internal successors, (18573), 5492 states have internal predecessors, (18573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:58,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5493 states to 5493 states and 18573 transitions. [2022-03-03 20:27:58,492 INFO L78 Accepts]: Start accepts. Automaton has 5493 states and 18573 transitions. Word has length 39 [2022-03-03 20:27:58,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:27:58,492 INFO L470 AbstractCegarLoop]: Abstraction has 5493 states and 18573 transitions. [2022-03-03 20:27:58,492 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:27:58,492 INFO L276 IsEmpty]: Start isEmpty. Operand 5493 states and 18573 transitions. [2022-03-03 20:27:58,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:27:58,499 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:27:58,499 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:27:58,499 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable402 [2022-03-03 20:27:58,499 INFO L402 AbstractCegarLoop]: === Iteration 404 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:27:58,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:27:58,500 INFO L85 PathProgramCache]: Analyzing trace with hash -592147604, now seen corresponding path program 404 times [2022-03-03 20:27:58,500 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:27:58,500 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853834560] [2022-03-03 20:27:58,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:27:58,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:27:58,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:27:58,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:27:58,719 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:27:58,719 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853834560] [2022-03-03 20:27:58,719 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853834560] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:27:58,719 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:27:58,720 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:27:58,720 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808155565] [2022-03-03 20:27:58,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:27:58,720 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:27:58,720 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:27:58,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:27:58,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:27:58,720 INFO L87 Difference]: Start difference. First operand 5493 states and 18573 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:00,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:28:00,433 INFO L93 Difference]: Finished difference Result 7872 states and 26181 transitions. [2022-03-03 20:28:00,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-03-03 20:28:00,434 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:28:00,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:28:00,448 INFO L225 Difference]: With dead ends: 7872 [2022-03-03 20:28:00,448 INFO L226 Difference]: Without dead ends: 7754 [2022-03-03 20:28:00,449 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1284 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=407, Invalid=4285, Unknown=0, NotChecked=0, Total=4692 [2022-03-03 20:28:00,449 INFO L933 BasicCegarLoop]: 193 mSDtfsCounter, 456 mSDsluCounter, 2215 mSDsCounter, 0 mSdLazyCounter, 2564 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 456 SdHoareTripleChecker+Valid, 2075 SdHoareTripleChecker+Invalid, 2647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 2564 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 20:28:00,449 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [456 Valid, 2075 Invalid, 2647 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 2564 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 20:28:00,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7754 states. [2022-03-03 20:28:00,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7754 to 5504. [2022-03-03 20:28:00,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5504 states, 5503 states have (on average 3.3816100308922405) internal successors, (18609), 5503 states have internal predecessors, (18609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:00,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5504 states to 5504 states and 18609 transitions. [2022-03-03 20:28:00,531 INFO L78 Accepts]: Start accepts. Automaton has 5504 states and 18609 transitions. Word has length 39 [2022-03-03 20:28:00,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:28:00,531 INFO L470 AbstractCegarLoop]: Abstraction has 5504 states and 18609 transitions. [2022-03-03 20:28:00,532 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:00,532 INFO L276 IsEmpty]: Start isEmpty. Operand 5504 states and 18609 transitions. [2022-03-03 20:28:00,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:28:00,538 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:28:00,538 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:28:00,538 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable403 [2022-03-03 20:28:00,538 INFO L402 AbstractCegarLoop]: === Iteration 405 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:28:00,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:28:00,539 INFO L85 PathProgramCache]: Analyzing trace with hash 580504618, now seen corresponding path program 405 times [2022-03-03 20:28:00,539 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:28:00,539 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297002652] [2022-03-03 20:28:00,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:28:00,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:28:00,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:28:00,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:28:00,757 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:28:00,757 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297002652] [2022-03-03 20:28:00,757 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297002652] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:28:00,757 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:28:00,757 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:28:00,757 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891996833] [2022-03-03 20:28:00,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:28:00,757 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:28:00,757 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:28:00,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:28:00,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:28:00,758 INFO L87 Difference]: Start difference. First operand 5504 states and 18609 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:02,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:28:02,821 INFO L93 Difference]: Finished difference Result 8538 states and 28553 transitions. [2022-03-03 20:28:02,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2022-03-03 20:28:02,822 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:28:02,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:28:02,837 INFO L225 Difference]: With dead ends: 8538 [2022-03-03 20:28:02,838 INFO L226 Difference]: Without dead ends: 8478 [2022-03-03 20:28:02,838 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1653 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=469, Invalid=5231, Unknown=0, NotChecked=0, Total=5700 [2022-03-03 20:28:02,838 INFO L933 BasicCegarLoop]: 230 mSDtfsCounter, 476 mSDsluCounter, 2564 mSDsCounter, 0 mSdLazyCounter, 2946 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 476 SdHoareTripleChecker+Valid, 2472 SdHoareTripleChecker+Invalid, 3036 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 2946 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-03 20:28:02,838 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [476 Valid, 2472 Invalid, 3036 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 2946 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-03 20:28:02,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8478 states. [2022-03-03 20:28:02,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8478 to 5502. [2022-03-03 20:28:02,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5502 states, 5501 states have (on average 3.381930558080349) internal successors, (18604), 5501 states have internal predecessors, (18604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:02,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5502 states to 5502 states and 18604 transitions. [2022-03-03 20:28:02,923 INFO L78 Accepts]: Start accepts. Automaton has 5502 states and 18604 transitions. Word has length 39 [2022-03-03 20:28:02,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:28:02,923 INFO L470 AbstractCegarLoop]: Abstraction has 5502 states and 18604 transitions. [2022-03-03 20:28:02,923 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:02,923 INFO L276 IsEmpty]: Start isEmpty. Operand 5502 states and 18604 transitions. [2022-03-03 20:28:02,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:28:02,929 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:28:02,930 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:28:02,930 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable404 [2022-03-03 20:28:02,930 INFO L402 AbstractCegarLoop]: === Iteration 406 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:28:02,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:28:02,930 INFO L85 PathProgramCache]: Analyzing trace with hash -1296898984, now seen corresponding path program 406 times [2022-03-03 20:28:02,930 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:28:02,930 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519235601] [2022-03-03 20:28:02,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:28:02,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:28:02,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:28:03,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:28:03,149 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:28:03,149 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519235601] [2022-03-03 20:28:03,149 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519235601] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:28:03,150 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:28:03,150 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:28:03,150 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548614731] [2022-03-03 20:28:03,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:28:03,150 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:28:03,150 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:28:03,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:28:03,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:28:03,150 INFO L87 Difference]: Start difference. First operand 5502 states and 18604 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:04,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:28:04,676 INFO L93 Difference]: Finished difference Result 7666 states and 25683 transitions. [2022-03-03 20:28:04,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-03-03 20:28:04,676 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:28:04,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:28:04,690 INFO L225 Difference]: With dead ends: 7666 [2022-03-03 20:28:04,690 INFO L226 Difference]: Without dead ends: 7575 [2022-03-03 20:28:04,691 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 870 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=309, Invalid=3231, Unknown=0, NotChecked=0, Total=3540 [2022-03-03 20:28:04,691 INFO L933 BasicCegarLoop]: 192 mSDtfsCounter, 417 mSDsluCounter, 2120 mSDsCounter, 0 mSdLazyCounter, 2471 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 417 SdHoareTripleChecker+Valid, 2027 SdHoareTripleChecker+Invalid, 2546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 2471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 20:28:04,691 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [417 Valid, 2027 Invalid, 2546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 2471 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 20:28:04,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7575 states. [2022-03-03 20:28:04,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7575 to 5502. [2022-03-03 20:28:04,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5502 states, 5501 states have (on average 3.380839847300491) internal successors, (18598), 5501 states have internal predecessors, (18598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:04,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5502 states to 5502 states and 18598 transitions. [2022-03-03 20:28:04,795 INFO L78 Accepts]: Start accepts. Automaton has 5502 states and 18598 transitions. Word has length 39 [2022-03-03 20:28:04,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:28:04,795 INFO L470 AbstractCegarLoop]: Abstraction has 5502 states and 18598 transitions. [2022-03-03 20:28:04,795 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:04,795 INFO L276 IsEmpty]: Start isEmpty. Operand 5502 states and 18598 transitions. [2022-03-03 20:28:04,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:28:04,802 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:28:04,802 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:28:04,802 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable405 [2022-03-03 20:28:04,802 INFO L402 AbstractCegarLoop]: === Iteration 407 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:28:04,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:28:04,803 INFO L85 PathProgramCache]: Analyzing trace with hash 1495586106, now seen corresponding path program 407 times [2022-03-03 20:28:04,803 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:28:04,803 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508817850] [2022-03-03 20:28:04,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:28:04,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:28:04,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:28:05,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:28:05,018 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:28:05,018 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508817850] [2022-03-03 20:28:05,018 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508817850] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:28:05,018 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:28:05,018 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:28:05,018 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54492246] [2022-03-03 20:28:05,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:28:05,018 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:28:05,018 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:28:05,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:28:05,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:28:05,018 INFO L87 Difference]: Start difference. First operand 5502 states and 18598 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:07,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:28:07,017 INFO L93 Difference]: Finished difference Result 8536 states and 28660 transitions. [2022-03-03 20:28:07,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-03-03 20:28:07,017 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:28:07,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:28:07,034 INFO L225 Difference]: With dead ends: 8536 [2022-03-03 20:28:07,034 INFO L226 Difference]: Without dead ends: 8436 [2022-03-03 20:28:07,035 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1426 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=423, Invalid=4689, Unknown=0, NotChecked=0, Total=5112 [2022-03-03 20:28:07,035 INFO L933 BasicCegarLoop]: 247 mSDtfsCounter, 440 mSDsluCounter, 2659 mSDsCounter, 0 mSdLazyCounter, 3105 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 440 SdHoareTripleChecker+Valid, 2601 SdHoareTripleChecker+Invalid, 3195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 3105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-03 20:28:07,035 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [440 Valid, 2601 Invalid, 3195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 3105 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-03 20:28:07,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8436 states. [2022-03-03 20:28:07,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8436 to 5493. [2022-03-03 20:28:07,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5493 states, 5492 states have (on average 3.3812818645302256) internal successors, (18570), 5492 states have internal predecessors, (18570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:07,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5493 states to 5493 states and 18570 transitions. [2022-03-03 20:28:07,126 INFO L78 Accepts]: Start accepts. Automaton has 5493 states and 18570 transitions. Word has length 39 [2022-03-03 20:28:07,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:28:07,126 INFO L470 AbstractCegarLoop]: Abstraction has 5493 states and 18570 transitions. [2022-03-03 20:28:07,126 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:07,126 INFO L276 IsEmpty]: Start isEmpty. Operand 5493 states and 18570 transitions. [2022-03-03 20:28:07,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:28:07,133 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:28:07,133 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:28:07,133 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable406 [2022-03-03 20:28:07,133 INFO L402 AbstractCegarLoop]: === Iteration 408 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:28:07,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:28:07,133 INFO L85 PathProgramCache]: Analyzing trace with hash -1624510450, now seen corresponding path program 408 times [2022-03-03 20:28:07,133 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:28:07,133 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503601185] [2022-03-03 20:28:07,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:28:07,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:28:07,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:28:07,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:28:07,354 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:28:07,354 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503601185] [2022-03-03 20:28:07,354 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503601185] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:28:07,354 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:28:07,354 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:28:07,354 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982940255] [2022-03-03 20:28:07,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:28:07,355 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:28:07,355 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:28:07,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:28:07,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:28:07,355 INFO L87 Difference]: Start difference. First operand 5493 states and 18570 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:08,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:28:08,450 INFO L93 Difference]: Finished difference Result 5889 states and 19625 transitions. [2022-03-03 20:28:08,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-03-03 20:28:08,450 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:28:08,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:28:08,461 INFO L225 Difference]: With dead ends: 5889 [2022-03-03 20:28:08,462 INFO L226 Difference]: Without dead ends: 5834 [2022-03-03 20:28:08,462 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 682 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=279, Invalid=2691, Unknown=0, NotChecked=0, Total=2970 [2022-03-03 20:28:08,462 INFO L933 BasicCegarLoop]: 112 mSDtfsCounter, 295 mSDsluCounter, 1366 mSDsCounter, 0 mSdLazyCounter, 1881 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 1140 SdHoareTripleChecker+Invalid, 1952 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 1881 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:28:08,462 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [295 Valid, 1140 Invalid, 1952 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 1881 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:28:08,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5834 states. [2022-03-03 20:28:08,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5834 to 5511. [2022-03-03 20:28:08,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5511 states, 5510 states have (on average 3.3784029038112524) internal successors, (18615), 5510 states have internal predecessors, (18615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:08,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5511 states to 5511 states and 18615 transitions. [2022-03-03 20:28:08,545 INFO L78 Accepts]: Start accepts. Automaton has 5511 states and 18615 transitions. Word has length 39 [2022-03-03 20:28:08,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:28:08,545 INFO L470 AbstractCegarLoop]: Abstraction has 5511 states and 18615 transitions. [2022-03-03 20:28:08,545 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:08,545 INFO L276 IsEmpty]: Start isEmpty. Operand 5511 states and 18615 transitions. [2022-03-03 20:28:08,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:28:08,553 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:28:08,553 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:28:08,553 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable407 [2022-03-03 20:28:08,553 INFO L402 AbstractCegarLoop]: === Iteration 409 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:28:08,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:28:08,553 INFO L85 PathProgramCache]: Analyzing trace with hash -451858228, now seen corresponding path program 409 times [2022-03-03 20:28:08,554 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:28:08,554 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452489325] [2022-03-03 20:28:08,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:28:08,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:28:08,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:28:08,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:28:08,719 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:28:08,719 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452489325] [2022-03-03 20:28:08,719 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452489325] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:28:08,719 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:28:08,719 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:28:08,719 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118522368] [2022-03-03 20:28:08,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:28:08,719 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:28:08,719 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:28:08,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:28:08,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:28:08,720 INFO L87 Difference]: Start difference. First operand 5511 states and 18615 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:09,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:28:09,905 INFO L93 Difference]: Finished difference Result 5859 states and 19550 transitions. [2022-03-03 20:28:09,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-03 20:28:09,906 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:28:09,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:28:09,916 INFO L225 Difference]: With dead ends: 5859 [2022-03-03 20:28:09,916 INFO L226 Difference]: Without dead ends: 5799 [2022-03-03 20:28:09,917 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 607 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=270, Invalid=2486, Unknown=0, NotChecked=0, Total=2756 [2022-03-03 20:28:09,917 INFO L933 BasicCegarLoop]: 108 mSDtfsCounter, 298 mSDsluCounter, 1331 mSDsCounter, 0 mSdLazyCounter, 1752 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 1106 SdHoareTripleChecker+Invalid, 1817 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 1752 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:28:09,917 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [298 Valid, 1106 Invalid, 1817 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 1752 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:28:09,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5799 states. [2022-03-03 20:28:09,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5799 to 5509. [2022-03-03 20:28:09,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5509 states, 5508 states have (on average 3.378540305010893) internal successors, (18609), 5508 states have internal predecessors, (18609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:09,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5509 states to 5509 states and 18609 transitions. [2022-03-03 20:28:09,984 INFO L78 Accepts]: Start accepts. Automaton has 5509 states and 18609 transitions. Word has length 39 [2022-03-03 20:28:09,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:28:09,985 INFO L470 AbstractCegarLoop]: Abstraction has 5509 states and 18609 transitions. [2022-03-03 20:28:09,985 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:09,985 INFO L276 IsEmpty]: Start isEmpty. Operand 5509 states and 18609 transitions. [2022-03-03 20:28:09,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:28:09,991 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:28:09,991 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:28:09,992 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable408 [2022-03-03 20:28:09,992 INFO L402 AbstractCegarLoop]: === Iteration 410 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:28:09,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:28:09,992 INFO L85 PathProgramCache]: Analyzing trace with hash -519603108, now seen corresponding path program 410 times [2022-03-03 20:28:09,992 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:28:09,992 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716323667] [2022-03-03 20:28:09,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:28:09,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:28:09,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:28:10,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:28:10,191 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:28:10,191 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716323667] [2022-03-03 20:28:10,191 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716323667] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:28:10,191 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:28:10,191 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:28:10,191 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984430771] [2022-03-03 20:28:10,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:28:10,191 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:28:10,191 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:28:10,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:28:10,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:28:10,192 INFO L87 Difference]: Start difference. First operand 5509 states and 18609 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:11,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:28:11,316 INFO L93 Difference]: Finished difference Result 5814 states and 19441 transitions. [2022-03-03 20:28:11,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-03-03 20:28:11,316 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:28:11,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:28:11,328 INFO L225 Difference]: With dead ends: 5814 [2022-03-03 20:28:11,328 INFO L226 Difference]: Without dead ends: 5771 [2022-03-03 20:28:11,328 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 536 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=241, Invalid=2309, Unknown=0, NotChecked=0, Total=2550 [2022-03-03 20:28:11,329 INFO L933 BasicCegarLoop]: 108 mSDtfsCounter, 269 mSDsluCounter, 1326 mSDsCounter, 0 mSdLazyCounter, 1803 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 1094 SdHoareTripleChecker+Invalid, 1851 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 1803 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:28:11,329 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [269 Valid, 1094 Invalid, 1851 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 1803 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:28:11,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5771 states. [2022-03-03 20:28:11,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5771 to 5515. [2022-03-03 20:28:11,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5515 states, 5514 states have (on average 3.377221617700399) internal successors, (18622), 5514 states have internal predecessors, (18622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:11,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5515 states to 5515 states and 18622 transitions. [2022-03-03 20:28:11,409 INFO L78 Accepts]: Start accepts. Automaton has 5515 states and 18622 transitions. Word has length 39 [2022-03-03 20:28:11,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:28:11,409 INFO L470 AbstractCegarLoop]: Abstraction has 5515 states and 18622 transitions. [2022-03-03 20:28:11,409 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:11,409 INFO L276 IsEmpty]: Start isEmpty. Operand 5515 states and 18622 transitions. [2022-03-03 20:28:11,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:28:11,417 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:28:11,417 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:28:11,418 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable409 [2022-03-03 20:28:11,418 INFO L402 AbstractCegarLoop]: === Iteration 411 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:28:11,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:28:11,418 INFO L85 PathProgramCache]: Analyzing trace with hash 1230504028, now seen corresponding path program 411 times [2022-03-03 20:28:11,418 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:28:11,418 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748742678] [2022-03-03 20:28:11,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:28:11,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:28:11,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:28:11,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:28:11,647 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:28:11,647 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748742678] [2022-03-03 20:28:11,647 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748742678] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:28:11,647 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:28:11,647 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:28:11,647 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058423402] [2022-03-03 20:28:11,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:28:11,647 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:28:11,647 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:28:11,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:28:11,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:28:11,647 INFO L87 Difference]: Start difference. First operand 5515 states and 18622 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:12,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:28:12,549 INFO L93 Difference]: Finished difference Result 5897 states and 19623 transitions. [2022-03-03 20:28:12,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-03 20:28:12,549 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:28:12,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:28:12,560 INFO L225 Difference]: With dead ends: 5897 [2022-03-03 20:28:12,561 INFO L226 Difference]: Without dead ends: 5785 [2022-03-03 20:28:12,561 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 572 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=254, Invalid=2398, Unknown=0, NotChecked=0, Total=2652 [2022-03-03 20:28:12,561 INFO L933 BasicCegarLoop]: 104 mSDtfsCounter, 268 mSDsluCounter, 1302 mSDsCounter, 0 mSdLazyCounter, 1745 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 1063 SdHoareTripleChecker+Invalid, 1794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1745 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 20:28:12,561 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [268 Valid, 1063 Invalid, 1794 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1745 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 20:28:12,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5785 states. [2022-03-03 20:28:12,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5785 to 5515. [2022-03-03 20:28:12,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5515 states, 5514 states have (on average 3.3737758433079432) internal successors, (18603), 5514 states have internal predecessors, (18603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:12,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5515 states to 5515 states and 18603 transitions. [2022-03-03 20:28:12,639 INFO L78 Accepts]: Start accepts. Automaton has 5515 states and 18603 transitions. Word has length 39 [2022-03-03 20:28:12,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:28:12,640 INFO L470 AbstractCegarLoop]: Abstraction has 5515 states and 18603 transitions. [2022-03-03 20:28:12,640 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:12,640 INFO L276 IsEmpty]: Start isEmpty. Operand 5515 states and 18603 transitions. [2022-03-03 20:28:12,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:28:12,648 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:28:12,648 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:28:12,648 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable410 [2022-03-03 20:28:12,648 INFO L402 AbstractCegarLoop]: === Iteration 412 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:28:12,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:28:12,648 INFO L85 PathProgramCache]: Analyzing trace with hash 1847722430, now seen corresponding path program 412 times [2022-03-03 20:28:12,648 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:28:12,648 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470850836] [2022-03-03 20:28:12,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:28:12,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:28:12,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:28:12,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:28:12,835 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:28:12,835 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470850836] [2022-03-03 20:28:12,835 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470850836] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:28:12,835 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:28:12,835 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:28:12,835 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675192167] [2022-03-03 20:28:12,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:28:12,835 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:28:12,835 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:28:12,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:28:12,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:28:12,836 INFO L87 Difference]: Start difference. First operand 5515 states and 18603 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:13,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:28:13,914 INFO L93 Difference]: Finished difference Result 5816 states and 19421 transitions. [2022-03-03 20:28:13,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-03-03 20:28:13,914 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:28:13,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:28:13,925 INFO L225 Difference]: With dead ends: 5816 [2022-03-03 20:28:13,925 INFO L226 Difference]: Without dead ends: 5770 [2022-03-03 20:28:13,926 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 444 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=222, Invalid=2034, Unknown=0, NotChecked=0, Total=2256 [2022-03-03 20:28:13,926 INFO L933 BasicCegarLoop]: 101 mSDtfsCounter, 255 mSDsluCounter, 1242 mSDsCounter, 0 mSdLazyCounter, 1705 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 1007 SdHoareTripleChecker+Invalid, 1747 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 1705 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:28:13,926 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [255 Valid, 1007 Invalid, 1747 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 1705 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:28:13,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5770 states. [2022-03-03 20:28:13,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5770 to 5507. [2022-03-03 20:28:13,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5507 states, 5506 states have (on average 3.3764983654195424) internal successors, (18591), 5506 states have internal predecessors, (18591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:13,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5507 states to 5507 states and 18591 transitions. [2022-03-03 20:28:13,995 INFO L78 Accepts]: Start accepts. Automaton has 5507 states and 18591 transitions. Word has length 39 [2022-03-03 20:28:13,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:28:13,995 INFO L470 AbstractCegarLoop]: Abstraction has 5507 states and 18591 transitions. [2022-03-03 20:28:13,995 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:13,995 INFO L276 IsEmpty]: Start isEmpty. Operand 5507 states and 18591 transitions. [2022-03-03 20:28:14,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:28:14,002 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:28:14,002 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:28:14,002 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable411 [2022-03-03 20:28:14,002 INFO L402 AbstractCegarLoop]: === Iteration 413 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:28:14,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:28:14,002 INFO L85 PathProgramCache]: Analyzing trace with hash 412654940, now seen corresponding path program 413 times [2022-03-03 20:28:14,002 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:28:14,002 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781194555] [2022-03-03 20:28:14,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:28:14,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:28:14,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:28:14,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:28:14,197 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:28:14,197 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781194555] [2022-03-03 20:28:14,197 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781194555] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:28:14,198 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:28:14,198 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:28:14,198 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019352536] [2022-03-03 20:28:14,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:28:14,198 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:28:14,198 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:28:14,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:28:14,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:28:14,198 INFO L87 Difference]: Start difference. First operand 5507 states and 18591 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:15,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:28:15,222 INFO L93 Difference]: Finished difference Result 5800 states and 19385 transitions. [2022-03-03 20:28:15,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-03 20:28:15,222 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:28:15,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:28:15,234 INFO L225 Difference]: With dead ends: 5800 [2022-03-03 20:28:15,235 INFO L226 Difference]: Without dead ends: 5725 [2022-03-03 20:28:15,235 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 476 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=228, Invalid=2124, Unknown=0, NotChecked=0, Total=2352 [2022-03-03 20:28:15,235 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 261 mSDsluCounter, 1218 mSDsCounter, 0 mSdLazyCounter, 1686 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 993 SdHoareTripleChecker+Invalid, 1729 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 1686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:28:15,235 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [261 Valid, 993 Invalid, 1729 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 1686 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:28:15,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5725 states. [2022-03-03 20:28:15,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5725 to 5477. [2022-03-03 20:28:15,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5477 states, 5476 states have (on average 3.3823959094229363) internal successors, (18522), 5476 states have internal predecessors, (18522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:15,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5477 states to 5477 states and 18522 transitions. [2022-03-03 20:28:15,318 INFO L78 Accepts]: Start accepts. Automaton has 5477 states and 18522 transitions. Word has length 39 [2022-03-03 20:28:15,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:28:15,318 INFO L470 AbstractCegarLoop]: Abstraction has 5477 states and 18522 transitions. [2022-03-03 20:28:15,318 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:15,318 INFO L276 IsEmpty]: Start isEmpty. Operand 5477 states and 18522 transitions. [2022-03-03 20:28:15,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:28:15,326 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:28:15,332 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:28:15,332 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable412 [2022-03-03 20:28:15,332 INFO L402 AbstractCegarLoop]: === Iteration 414 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:28:15,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:28:15,332 INFO L85 PathProgramCache]: Analyzing trace with hash -870048178, now seen corresponding path program 414 times [2022-03-03 20:28:15,333 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:28:15,333 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021898404] [2022-03-03 20:28:15,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:28:15,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:28:15,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:28:15,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:28:15,475 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:28:15,475 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021898404] [2022-03-03 20:28:15,475 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021898404] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:28:15,475 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:28:15,475 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:28:15,475 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002030072] [2022-03-03 20:28:15,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:28:15,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:28:15,475 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:28:15,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:28:15,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:28:15,476 INFO L87 Difference]: Start difference. First operand 5477 states and 18522 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:16,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:28:16,227 INFO L93 Difference]: Finished difference Result 5735 states and 19239 transitions. [2022-03-03 20:28:16,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-03-03 20:28:16,228 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:28:16,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:28:16,238 INFO L225 Difference]: With dead ends: 5735 [2022-03-03 20:28:16,239 INFO L226 Difference]: Without dead ends: 5677 [2022-03-03 20:28:16,239 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 420 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=212, Invalid=1950, Unknown=0, NotChecked=0, Total=2162 [2022-03-03 20:28:16,239 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 232 mSDsluCounter, 1155 mSDsCounter, 0 mSdLazyCounter, 1656 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 948 SdHoareTripleChecker+Invalid, 1696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1656 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 20:28:16,239 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [232 Valid, 948 Invalid, 1696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1656 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 20:28:16,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5677 states. [2022-03-03 20:28:16,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5677 to 5476. [2022-03-03 20:28:16,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5476 states, 5475 states have (on average 3.382648401826484) internal successors, (18520), 5475 states have internal predecessors, (18520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:16,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5476 states to 5476 states and 18520 transitions. [2022-03-03 20:28:16,315 INFO L78 Accepts]: Start accepts. Automaton has 5476 states and 18520 transitions. Word has length 39 [2022-03-03 20:28:16,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:28:16,316 INFO L470 AbstractCegarLoop]: Abstraction has 5476 states and 18520 transitions. [2022-03-03 20:28:16,316 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:16,316 INFO L276 IsEmpty]: Start isEmpty. Operand 5476 states and 18520 transitions. [2022-03-03 20:28:16,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:28:16,324 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:28:16,324 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:28:16,324 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable413 [2022-03-03 20:28:16,324 INFO L402 AbstractCegarLoop]: === Iteration 415 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:28:16,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:28:16,324 INFO L85 PathProgramCache]: Analyzing trace with hash 468708410, now seen corresponding path program 415 times [2022-03-03 20:28:16,324 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:28:16,324 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735190361] [2022-03-03 20:28:16,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:28:16,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:28:16,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:28:16,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:28:16,465 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:28:16,465 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735190361] [2022-03-03 20:28:16,465 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735190361] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:28:16,465 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:28:16,465 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:28:16,465 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932362821] [2022-03-03 20:28:16,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:28:16,465 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:28:16,465 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:28:16,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:28:16,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:28:16,466 INFO L87 Difference]: Start difference. First operand 5476 states and 18520 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:17,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:28:17,348 INFO L93 Difference]: Finished difference Result 5675 states and 19108 transitions. [2022-03-03 20:28:17,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 20:28:17,349 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:28:17,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:28:17,359 INFO L225 Difference]: With dead ends: 5675 [2022-03-03 20:28:17,359 INFO L226 Difference]: Without dead ends: 5575 [2022-03-03 20:28:17,359 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 418 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=205, Invalid=1957, Unknown=0, NotChecked=0, Total=2162 [2022-03-03 20:28:17,359 INFO L933 BasicCegarLoop]: 104 mSDtfsCounter, 208 mSDsluCounter, 1208 mSDsCounter, 0 mSdLazyCounter, 1655 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 1009 SdHoareTripleChecker+Invalid, 1692 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1655 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:28:17,360 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [208 Valid, 1009 Invalid, 1692 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1655 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:28:17,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5575 states. [2022-03-03 20:28:17,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5575 to 5437. [2022-03-03 20:28:17,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5437 states, 5436 states have (on average 3.391096394407653) internal successors, (18434), 5436 states have internal predecessors, (18434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:17,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5437 states to 5437 states and 18434 transitions. [2022-03-03 20:28:17,424 INFO L78 Accepts]: Start accepts. Automaton has 5437 states and 18434 transitions. Word has length 39 [2022-03-03 20:28:17,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:28:17,425 INFO L470 AbstractCegarLoop]: Abstraction has 5437 states and 18434 transitions. [2022-03-03 20:28:17,425 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:17,425 INFO L276 IsEmpty]: Start isEmpty. Operand 5437 states and 18434 transitions. [2022-03-03 20:28:17,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:28:17,432 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:28:17,432 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:28:17,432 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable414 [2022-03-03 20:28:17,432 INFO L402 AbstractCegarLoop]: === Iteration 416 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:28:17,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:28:17,432 INFO L85 PathProgramCache]: Analyzing trace with hash 688501160, now seen corresponding path program 416 times [2022-03-03 20:28:17,432 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:28:17,432 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288806356] [2022-03-03 20:28:17,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:28:17,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:28:17,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:28:17,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:28:17,651 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:28:17,651 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288806356] [2022-03-03 20:28:17,651 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288806356] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:28:17,651 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:28:17,651 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:28:17,651 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228155324] [2022-03-03 20:28:17,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:28:17,651 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:28:17,651 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:28:17,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:28:17,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:28:17,651 INFO L87 Difference]: Start difference. First operand 5437 states and 18434 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:19,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:28:19,306 INFO L93 Difference]: Finished difference Result 7983 states and 26964 transitions. [2022-03-03 20:28:19,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-03-03 20:28:19,306 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:28:19,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:28:19,323 INFO L225 Difference]: With dead ends: 7983 [2022-03-03 20:28:19,323 INFO L226 Difference]: Without dead ends: 7940 [2022-03-03 20:28:19,323 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1128 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=362, Invalid=3928, Unknown=0, NotChecked=0, Total=4290 [2022-03-03 20:28:19,324 INFO L933 BasicCegarLoop]: 183 mSDtfsCounter, 450 mSDsluCounter, 2153 mSDsCounter, 0 mSdLazyCounter, 2747 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 450 SdHoareTripleChecker+Valid, 1991 SdHoareTripleChecker+Invalid, 2836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 2747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 20:28:19,324 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [450 Valid, 1991 Invalid, 2836 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 2747 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 20:28:19,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7940 states. [2022-03-03 20:28:19,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7940 to 5471. [2022-03-03 20:28:19,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5471 states, 5470 states have (on average 3.389579524680073) internal successors, (18541), 5470 states have internal predecessors, (18541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:19,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5471 states to 5471 states and 18541 transitions. [2022-03-03 20:28:19,417 INFO L78 Accepts]: Start accepts. Automaton has 5471 states and 18541 transitions. Word has length 39 [2022-03-03 20:28:19,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:28:19,417 INFO L470 AbstractCegarLoop]: Abstraction has 5471 states and 18541 transitions. [2022-03-03 20:28:19,417 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:19,417 INFO L276 IsEmpty]: Start isEmpty. Operand 5471 states and 18541 transitions. [2022-03-03 20:28:19,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:28:19,425 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:28:19,425 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:28:19,425 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable415 [2022-03-03 20:28:19,425 INFO L402 AbstractCegarLoop]: === Iteration 417 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:28:19,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:28:19,425 INFO L85 PathProgramCache]: Analyzing trace with hash -1092097142, now seen corresponding path program 417 times [2022-03-03 20:28:19,425 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:28:19,425 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761015414] [2022-03-03 20:28:19,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:28:19,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:28:19,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:28:19,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:28:19,648 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:28:19,648 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761015414] [2022-03-03 20:28:19,648 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761015414] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:28:19,648 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:28:19,648 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:28:19,648 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722958099] [2022-03-03 20:28:19,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:28:19,648 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:28:19,648 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:28:19,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:28:19,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:28:19,648 INFO L87 Difference]: Start difference. First operand 5471 states and 18541 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:21,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:28:21,291 INFO L93 Difference]: Finished difference Result 8808 states and 29786 transitions. [2022-03-03 20:28:21,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-03-03 20:28:21,291 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:28:21,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:28:21,307 INFO L225 Difference]: With dead ends: 8808 [2022-03-03 20:28:21,308 INFO L226 Difference]: Without dead ends: 8756 [2022-03-03 20:28:21,308 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1429 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=405, Invalid=4707, Unknown=0, NotChecked=0, Total=5112 [2022-03-03 20:28:21,308 INFO L933 BasicCegarLoop]: 218 mSDtfsCounter, 489 mSDsluCounter, 2491 mSDsCounter, 0 mSdLazyCounter, 3081 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 489 SdHoareTripleChecker+Valid, 2366 SdHoareTripleChecker+Invalid, 3178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 3081 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 20:28:21,309 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [489 Valid, 2366 Invalid, 3178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 3081 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 20:28:21,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8756 states. [2022-03-03 20:28:21,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8756 to 5437. [2022-03-03 20:28:21,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5437 states, 5436 states have (on average 3.391096394407653) internal successors, (18434), 5436 states have internal predecessors, (18434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:21,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5437 states to 5437 states and 18434 transitions. [2022-03-03 20:28:21,396 INFO L78 Accepts]: Start accepts. Automaton has 5437 states and 18434 transitions. Word has length 39 [2022-03-03 20:28:21,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:28:21,396 INFO L470 AbstractCegarLoop]: Abstraction has 5437 states and 18434 transitions. [2022-03-03 20:28:21,396 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:21,396 INFO L276 IsEmpty]: Start isEmpty. Operand 5437 states and 18434 transitions. [2022-03-03 20:28:21,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:28:21,454 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:28:21,454 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:28:21,454 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable416 [2022-03-03 20:28:21,455 INFO L402 AbstractCegarLoop]: === Iteration 418 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:28:21,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:28:21,455 INFO L85 PathProgramCache]: Analyzing trace with hash 1606984730, now seen corresponding path program 418 times [2022-03-03 20:28:21,455 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:28:21,455 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305681317] [2022-03-03 20:28:21,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:28:21,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:28:21,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:28:21,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:28:21,614 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:28:21,614 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305681317] [2022-03-03 20:28:21,614 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305681317] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:28:21,614 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:28:21,614 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:28:21,614 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362303166] [2022-03-03 20:28:21,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:28:21,614 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:28:21,614 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:28:21,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:28:21,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:28:21,614 INFO L87 Difference]: Start difference. First operand 5437 states and 18434 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:22,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:28:22,640 INFO L93 Difference]: Finished difference Result 7494 states and 25129 transitions. [2022-03-03 20:28:22,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-03-03 20:28:22,640 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:28:22,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:28:22,654 INFO L225 Difference]: With dead ends: 7494 [2022-03-03 20:28:22,655 INFO L226 Difference]: Without dead ends: 7439 [2022-03-03 20:28:22,655 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 713 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=286, Invalid=2794, Unknown=0, NotChecked=0, Total=3080 [2022-03-03 20:28:22,655 INFO L933 BasicCegarLoop]: 165 mSDtfsCounter, 390 mSDsluCounter, 1948 mSDsCounter, 0 mSdLazyCounter, 2379 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 390 SdHoareTripleChecker+Valid, 1770 SdHoareTripleChecker+Invalid, 2444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 2379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:28:22,655 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [390 Valid, 1770 Invalid, 2444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 2379 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:28:22,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7439 states. [2022-03-03 20:28:22,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7439 to 5465. [2022-03-03 20:28:22,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5465 states, 5464 states have (on average 3.390190336749634) internal successors, (18524), 5464 states have internal predecessors, (18524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:22,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5465 states to 5465 states and 18524 transitions. [2022-03-03 20:28:22,732 INFO L78 Accepts]: Start accepts. Automaton has 5465 states and 18524 transitions. Word has length 39 [2022-03-03 20:28:22,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:28:22,732 INFO L470 AbstractCegarLoop]: Abstraction has 5465 states and 18524 transitions. [2022-03-03 20:28:22,732 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:22,732 INFO L276 IsEmpty]: Start isEmpty. Operand 5465 states and 18524 transitions. [2022-03-03 20:28:22,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:28:22,739 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:28:22,739 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:28:22,739 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable417 [2022-03-03 20:28:22,739 INFO L402 AbstractCegarLoop]: === Iteration 419 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:28:22,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:28:22,739 INFO L85 PathProgramCache]: Analyzing trace with hash -1515330344, now seen corresponding path program 419 times [2022-03-03 20:28:22,739 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:28:22,739 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864086104] [2022-03-03 20:28:22,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:28:22,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:28:22,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:28:22,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:28:22,938 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:28:22,938 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864086104] [2022-03-03 20:28:22,939 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864086104] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:28:22,939 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:28:22,939 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:28:22,939 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580282496] [2022-03-03 20:28:22,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:28:22,939 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:28:22,939 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:28:22,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:28:22,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:28:22,939 INFO L87 Difference]: Start difference. First operand 5465 states and 18524 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:24,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:28:24,519 INFO L93 Difference]: Finished difference Result 8175 states and 27493 transitions. [2022-03-03 20:28:24,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-03-03 20:28:24,520 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:28:24,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:28:24,561 INFO L225 Difference]: With dead ends: 8175 [2022-03-03 20:28:24,561 INFO L226 Difference]: Without dead ends: 8115 [2022-03-03 20:28:24,562 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 915 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=317, Invalid=3343, Unknown=0, NotChecked=0, Total=3660 [2022-03-03 20:28:24,562 INFO L933 BasicCegarLoop]: 199 mSDtfsCounter, 416 mSDsluCounter, 2290 mSDsCounter, 0 mSdLazyCounter, 2709 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 416 SdHoareTripleChecker+Valid, 2150 SdHoareTripleChecker+Invalid, 2777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 2709 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-03 20:28:24,562 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [416 Valid, 2150 Invalid, 2777 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 2709 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-03 20:28:24,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8115 states. [2022-03-03 20:28:24,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8115 to 5463. [2022-03-03 20:28:24,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5463 states, 5462 states have (on average 3.3905162943976563) internal successors, (18519), 5462 states have internal predecessors, (18519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:24,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5463 states to 5463 states and 18519 transitions. [2022-03-03 20:28:24,634 INFO L78 Accepts]: Start accepts. Automaton has 5463 states and 18519 transitions. Word has length 39 [2022-03-03 20:28:24,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:28:24,634 INFO L470 AbstractCegarLoop]: Abstraction has 5463 states and 18519 transitions. [2022-03-03 20:28:24,634 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:24,634 INFO L276 IsEmpty]: Start isEmpty. Operand 5463 states and 18519 transitions. [2022-03-03 20:28:24,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:28:24,641 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:28:24,641 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:28:24,641 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable418 [2022-03-03 20:28:24,641 INFO L402 AbstractCegarLoop]: === Iteration 420 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:28:24,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:28:24,641 INFO L85 PathProgramCache]: Analyzing trace with hash 902233350, now seen corresponding path program 420 times [2022-03-03 20:28:24,641 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:28:24,641 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918552978] [2022-03-03 20:28:24,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:28:24,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:28:24,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:28:24,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:28:24,861 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:28:24,861 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918552978] [2022-03-03 20:28:24,861 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918552978] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:28:24,861 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:28:24,861 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:28:24,861 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529980228] [2022-03-03 20:28:24,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:28:24,862 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:28:24,862 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:28:24,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:28:24,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:28:24,862 INFO L87 Difference]: Start difference. First operand 5463 states and 18519 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:26,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:28:26,225 INFO L93 Difference]: Finished difference Result 7463 states and 25083 transitions. [2022-03-03 20:28:26,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-03-03 20:28:26,225 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:28:26,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:28:26,239 INFO L225 Difference]: With dead ends: 7463 [2022-03-03 20:28:26,239 INFO L226 Difference]: Without dead ends: 7372 [2022-03-03 20:28:26,239 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 678 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=271, Invalid=2699, Unknown=0, NotChecked=0, Total=2970 [2022-03-03 20:28:26,240 INFO L933 BasicCegarLoop]: 172 mSDtfsCounter, 378 mSDsluCounter, 1984 mSDsCounter, 0 mSdLazyCounter, 2353 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 378 SdHoareTripleChecker+Valid, 1844 SdHoareTripleChecker+Invalid, 2414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 2353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 20:28:26,240 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [378 Valid, 1844 Invalid, 2414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 2353 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 20:28:26,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7372 states. [2022-03-03 20:28:26,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7372 to 5463. [2022-03-03 20:28:26,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5463 states, 5462 states have (on average 3.3894177956792384) internal successors, (18513), 5462 states have internal predecessors, (18513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:26,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5463 states to 5463 states and 18513 transitions. [2022-03-03 20:28:26,315 INFO L78 Accepts]: Start accepts. Automaton has 5463 states and 18513 transitions. Word has length 39 [2022-03-03 20:28:26,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:28:26,316 INFO L470 AbstractCegarLoop]: Abstraction has 5463 states and 18513 transitions. [2022-03-03 20:28:26,316 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:26,316 INFO L276 IsEmpty]: Start isEmpty. Operand 5463 states and 18513 transitions. [2022-03-03 20:28:26,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:28:26,323 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:28:26,323 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:28:26,323 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable419 [2022-03-03 20:28:26,323 INFO L402 AbstractCegarLoop]: === Iteration 421 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:28:26,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:28:26,324 INFO L85 PathProgramCache]: Analyzing trace with hash -600248856, now seen corresponding path program 421 times [2022-03-03 20:28:26,324 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:28:26,324 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802910880] [2022-03-03 20:28:26,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:28:26,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:28:26,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:28:26,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:28:26,541 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:28:26,541 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802910880] [2022-03-03 20:28:26,541 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802910880] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:28:26,541 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:28:26,541 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:28:26,541 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509582101] [2022-03-03 20:28:26,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:28:26,541 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:28:26,541 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:28:26,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:28:26,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:28:26,541 INFO L87 Difference]: Start difference. First operand 5463 states and 18513 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:28,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:28:28,135 INFO L93 Difference]: Finished difference Result 8096 states and 27315 transitions. [2022-03-03 20:28:28,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-03-03 20:28:28,136 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:28:28,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:28:28,150 INFO L225 Difference]: With dead ends: 8096 [2022-03-03 20:28:28,151 INFO L226 Difference]: Without dead ends: 7980 [2022-03-03 20:28:28,151 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 827 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=296, Invalid=3126, Unknown=0, NotChecked=0, Total=3422 [2022-03-03 20:28:28,151 INFO L933 BasicCegarLoop]: 206 mSDtfsCounter, 386 mSDsluCounter, 2362 mSDsCounter, 0 mSdLazyCounter, 2719 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 386 SdHoareTripleChecker+Valid, 2232 SdHoareTripleChecker+Invalid, 2782 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 2719 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-03 20:28:28,151 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [386 Valid, 2232 Invalid, 2782 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 2719 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-03 20:28:28,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7980 states. [2022-03-03 20:28:28,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7980 to 5417. [2022-03-03 20:28:28,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5417 states, 5416 states have (on average 3.395125553914328) internal successors, (18388), 5416 states have internal predecessors, (18388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:28,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5417 states to 5417 states and 18388 transitions. [2022-03-03 20:28:28,231 INFO L78 Accepts]: Start accepts. Automaton has 5417 states and 18388 transitions. Word has length 39 [2022-03-03 20:28:28,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:28:28,231 INFO L470 AbstractCegarLoop]: Abstraction has 5417 states and 18388 transitions. [2022-03-03 20:28:28,231 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:28,231 INFO L276 IsEmpty]: Start isEmpty. Operand 5417 states and 18388 transitions. [2022-03-03 20:28:28,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:28:28,238 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:28:28,238 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:28:28,238 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable420 [2022-03-03 20:28:28,238 INFO L402 AbstractCegarLoop]: === Iteration 422 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:28:28,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:28:28,238 INFO L85 PathProgramCache]: Analyzing trace with hash 28984408, now seen corresponding path program 422 times [2022-03-03 20:28:28,238 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:28:28,238 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147662759] [2022-03-03 20:28:28,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:28:28,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:28:28,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:28:28,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:28:28,458 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:28:28,458 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147662759] [2022-03-03 20:28:28,458 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147662759] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:28:28,458 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:28:28,459 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:28:28,459 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124755113] [2022-03-03 20:28:28,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:28:28,459 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:28:28,459 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:28:28,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:28:28,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:28:28,459 INFO L87 Difference]: Start difference. First operand 5417 states and 18388 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:29,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:28:29,506 INFO L93 Difference]: Finished difference Result 5910 states and 19840 transitions. [2022-03-03 20:28:29,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-03 20:28:29,506 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:28:29,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:28:29,517 INFO L225 Difference]: With dead ends: 5910 [2022-03-03 20:28:29,517 INFO L226 Difference]: Without dead ends: 5843 [2022-03-03 20:28:29,517 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 480 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=225, Invalid=2127, Unknown=0, NotChecked=0, Total=2352 [2022-03-03 20:28:29,518 INFO L933 BasicCegarLoop]: 110 mSDtfsCounter, 260 mSDsluCounter, 1295 mSDsCounter, 0 mSdLazyCounter, 1700 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 1096 SdHoareTripleChecker+Invalid, 1745 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1700 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:28:29,518 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [260 Valid, 1096 Invalid, 1745 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 1700 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:28:29,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5843 states. [2022-03-03 20:28:29,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5843 to 5435. [2022-03-03 20:28:29,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5435 states, 5434 states have (on average 3.3925285241074716) internal successors, (18435), 5434 states have internal predecessors, (18435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:29,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5435 states to 5435 states and 18435 transitions. [2022-03-03 20:28:29,584 INFO L78 Accepts]: Start accepts. Automaton has 5435 states and 18435 transitions. Word has length 39 [2022-03-03 20:28:29,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:28:29,584 INFO L470 AbstractCegarLoop]: Abstraction has 5435 states and 18435 transitions. [2022-03-03 20:28:29,584 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:29,584 INFO L276 IsEmpty]: Start isEmpty. Operand 5435 states and 18435 transitions. [2022-03-03 20:28:29,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:28:29,591 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:28:29,591 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:28:29,591 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable421 [2022-03-03 20:28:29,591 INFO L402 AbstractCegarLoop]: === Iteration 423 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:28:29,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:28:29,591 INFO L85 PathProgramCache]: Analyzing trace with hash -143158810, now seen corresponding path program 423 times [2022-03-03 20:28:29,591 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:28:29,592 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834477386] [2022-03-03 20:28:29,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:28:29,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:28:29,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:28:29,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:28:29,809 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:28:29,809 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834477386] [2022-03-03 20:28:29,809 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834477386] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:28:29,809 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:28:29,809 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:28:29,809 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393168198] [2022-03-03 20:28:29,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:28:29,810 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:28:29,810 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:28:29,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:28:29,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:28:29,810 INFO L87 Difference]: Start difference. First operand 5435 states and 18435 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:30,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:28:30,652 INFO L93 Difference]: Finished difference Result 5870 states and 19710 transitions. [2022-03-03 20:28:30,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-03-03 20:28:30,652 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:28:30,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:28:30,662 INFO L225 Difference]: With dead ends: 5870 [2022-03-03 20:28:30,662 INFO L226 Difference]: Without dead ends: 5807 [2022-03-03 20:28:30,663 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 422 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=211, Invalid=1951, Unknown=0, NotChecked=0, Total=2162 [2022-03-03 20:28:30,663 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 233 mSDsluCounter, 1185 mSDsCounter, 0 mSdLazyCounter, 1566 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 974 SdHoareTripleChecker+Invalid, 1610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 1566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 20:28:30,663 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [233 Valid, 974 Invalid, 1610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 1566 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 20:28:30,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5807 states. [2022-03-03 20:28:30,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5807 to 5467. [2022-03-03 20:28:30,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5467 states, 5466 states have (on average 3.388035126234907) internal successors, (18519), 5466 states have internal predecessors, (18519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:30,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5467 states to 5467 states and 18519 transitions. [2022-03-03 20:28:30,727 INFO L78 Accepts]: Start accepts. Automaton has 5467 states and 18519 transitions. Word has length 39 [2022-03-03 20:28:30,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:28:30,728 INFO L470 AbstractCegarLoop]: Abstraction has 5467 states and 18519 transitions. [2022-03-03 20:28:30,728 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:30,728 INFO L276 IsEmpty]: Start isEmpty. Operand 5467 states and 18519 transitions. [2022-03-03 20:28:30,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:28:30,734 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:28:30,734 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:28:30,735 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable422 [2022-03-03 20:28:30,735 INFO L402 AbstractCegarLoop]: === Iteration 424 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:28:30,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:28:30,735 INFO L85 PathProgramCache]: Analyzing trace with hash -1945992966, now seen corresponding path program 424 times [2022-03-03 20:28:30,735 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:28:30,735 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700884976] [2022-03-03 20:28:30,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:28:30,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:28:30,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:28:30,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:28:30,925 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:28:30,925 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700884976] [2022-03-03 20:28:30,925 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700884976] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:28:30,925 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:28:30,925 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:28:30,925 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302044849] [2022-03-03 20:28:30,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:28:30,925 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:28:30,925 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:28:30,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:28:30,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:28:30,925 INFO L87 Difference]: Start difference. First operand 5467 states and 18519 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:31,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:28:31,863 INFO L93 Difference]: Finished difference Result 5870 states and 19702 transitions. [2022-03-03 20:28:31,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 20:28:31,863 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:28:31,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:28:31,874 INFO L225 Difference]: With dead ends: 5870 [2022-03-03 20:28:31,874 INFO L226 Difference]: Without dead ends: 5735 [2022-03-03 20:28:31,874 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 422 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=205, Invalid=1957, Unknown=0, NotChecked=0, Total=2162 [2022-03-03 20:28:31,874 INFO L933 BasicCegarLoop]: 103 mSDtfsCounter, 227 mSDsluCounter, 1252 mSDsCounter, 0 mSdLazyCounter, 1579 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 1048 SdHoareTripleChecker+Invalid, 1619 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:28:31,874 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [227 Valid, 1048 Invalid, 1619 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1579 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:28:31,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5735 states. [2022-03-03 20:28:31,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5735 to 5423. [2022-03-03 20:28:31,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5423 states, 5422 states have (on average 3.3937661379564736) internal successors, (18401), 5422 states have internal predecessors, (18401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:31,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5423 states to 5423 states and 18401 transitions. [2022-03-03 20:28:31,940 INFO L78 Accepts]: Start accepts. Automaton has 5423 states and 18401 transitions. Word has length 39 [2022-03-03 20:28:31,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:28:31,940 INFO L470 AbstractCegarLoop]: Abstraction has 5423 states and 18401 transitions. [2022-03-03 20:28:31,940 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:31,940 INFO L276 IsEmpty]: Start isEmpty. Operand 5423 states and 18401 transitions. [2022-03-03 20:28:31,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:28:31,947 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:28:31,947 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:28:31,947 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable423 [2022-03-03 20:28:31,947 INFO L402 AbstractCegarLoop]: === Iteration 425 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:28:31,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:28:31,947 INFO L85 PathProgramCache]: Analyzing trace with hash -276502838, now seen corresponding path program 425 times [2022-03-03 20:28:31,947 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:28:31,947 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730946132] [2022-03-03 20:28:31,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:28:31,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:28:31,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:28:32,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:28:32,169 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:28:32,169 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730946132] [2022-03-03 20:28:32,169 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730946132] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:28:32,169 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:28:32,169 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:28:32,169 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704114379] [2022-03-03 20:28:32,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:28:32,169 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:28:32,169 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:28:32,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:28:32,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:28:32,169 INFO L87 Difference]: Start difference. First operand 5423 states and 18401 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:33,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:28:33,638 INFO L93 Difference]: Finished difference Result 5985 states and 20073 transitions. [2022-03-03 20:28:33,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-03-03 20:28:33,638 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:28:33,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:28:33,648 INFO L225 Difference]: With dead ends: 5985 [2022-03-03 20:28:33,649 INFO L226 Difference]: Without dead ends: 5918 [2022-03-03 20:28:33,649 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1056 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=393, Invalid=3639, Unknown=0, NotChecked=0, Total=4032 [2022-03-03 20:28:33,649 INFO L933 BasicCegarLoop]: 104 mSDtfsCounter, 336 mSDsluCounter, 1243 mSDsCounter, 0 mSdLazyCounter, 1763 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 336 SdHoareTripleChecker+Valid, 1040 SdHoareTripleChecker+Invalid, 1862 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 1763 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:28:33,649 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [336 Valid, 1040 Invalid, 1862 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 1763 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:28:33,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5918 states. [2022-03-03 20:28:33,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5918 to 5449. [2022-03-03 20:28:33,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5449 states, 5448 states have (on average 3.3906020558002936) internal successors, (18472), 5448 states have internal predecessors, (18472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:33,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5449 states to 5449 states and 18472 transitions. [2022-03-03 20:28:33,716 INFO L78 Accepts]: Start accepts. Automaton has 5449 states and 18472 transitions. Word has length 39 [2022-03-03 20:28:33,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:28:33,716 INFO L470 AbstractCegarLoop]: Abstraction has 5449 states and 18472 transitions. [2022-03-03 20:28:33,716 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:33,716 INFO L276 IsEmpty]: Start isEmpty. Operand 5449 states and 18472 transitions. [2022-03-03 20:28:33,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:28:33,723 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:28:33,723 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:28:33,723 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable424 [2022-03-03 20:28:33,723 INFO L402 AbstractCegarLoop]: === Iteration 426 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:28:33,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:28:33,724 INFO L85 PathProgramCache]: Analyzing trace with hash -1996118808, now seen corresponding path program 426 times [2022-03-03 20:28:33,724 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:28:33,724 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627544827] [2022-03-03 20:28:33,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:28:33,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:28:33,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:28:33,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:28:33,941 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:28:33,941 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627544827] [2022-03-03 20:28:33,941 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627544827] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:28:33,941 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:28:33,941 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:28:33,941 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984150035] [2022-03-03 20:28:33,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:28:33,941 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:28:33,941 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:28:33,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:28:33,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:28:33,941 INFO L87 Difference]: Start difference. First operand 5449 states and 18472 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:35,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:28:35,677 INFO L93 Difference]: Finished difference Result 6109 states and 20370 transitions. [2022-03-03 20:28:35,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-03-03 20:28:35,677 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:28:35,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:28:35,688 INFO L225 Difference]: With dead ends: 6109 [2022-03-03 20:28:35,688 INFO L226 Difference]: Without dead ends: 6066 [2022-03-03 20:28:35,689 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1445 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=454, Invalid=4658, Unknown=0, NotChecked=0, Total=5112 [2022-03-03 20:28:35,689 INFO L933 BasicCegarLoop]: 109 mSDtfsCounter, 382 mSDsluCounter, 1391 mSDsCounter, 0 mSdLazyCounter, 2076 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 382 SdHoareTripleChecker+Valid, 1155 SdHoareTripleChecker+Invalid, 2182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 2076 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-03 20:28:35,689 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [382 Valid, 1155 Invalid, 2182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 2076 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-03 20:28:35,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6066 states. [2022-03-03 20:28:35,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6066 to 5455. [2022-03-03 20:28:35,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5455 states, 5454 states have (on average 3.389255592225889) internal successors, (18485), 5454 states have internal predecessors, (18485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:35,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5455 states to 5455 states and 18485 transitions. [2022-03-03 20:28:35,761 INFO L78 Accepts]: Start accepts. Automaton has 5455 states and 18485 transitions. Word has length 39 [2022-03-03 20:28:35,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:28:35,761 INFO L470 AbstractCegarLoop]: Abstraction has 5455 states and 18485 transitions. [2022-03-03 20:28:35,762 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:35,762 INFO L276 IsEmpty]: Start isEmpty. Operand 5455 states and 18485 transitions. [2022-03-03 20:28:35,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:28:35,768 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:28:35,768 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:28:35,768 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable425 [2022-03-03 20:28:35,768 INFO L402 AbstractCegarLoop]: === Iteration 427 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:28:35,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:28:35,769 INFO L85 PathProgramCache]: Analyzing trace with hash 518250186, now seen corresponding path program 427 times [2022-03-03 20:28:35,769 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:28:35,769 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797867349] [2022-03-03 20:28:35,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:28:35,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:28:35,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:28:35,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:28:35,990 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:28:35,990 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797867349] [2022-03-03 20:28:35,990 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797867349] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:28:35,990 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:28:35,990 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:28:35,990 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453975314] [2022-03-03 20:28:35,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:28:35,990 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:28:35,990 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:28:35,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:28:35,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:28:35,991 INFO L87 Difference]: Start difference. First operand 5455 states and 18485 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:37,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:28:37,655 INFO L93 Difference]: Finished difference Result 6058 states and 20247 transitions. [2022-03-03 20:28:37,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-03-03 20:28:37,655 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:28:37,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:28:37,666 INFO L225 Difference]: With dead ends: 6058 [2022-03-03 20:28:37,666 INFO L226 Difference]: Without dead ends: 5994 [2022-03-03 20:28:37,666 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1289 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=423, Invalid=4269, Unknown=0, NotChecked=0, Total=4692 [2022-03-03 20:28:37,667 INFO L933 BasicCegarLoop]: 105 mSDtfsCounter, 368 mSDsluCounter, 1342 mSDsCounter, 0 mSdLazyCounter, 1961 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 368 SdHoareTripleChecker+Valid, 1116 SdHoareTripleChecker+Invalid, 2062 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 1961 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-03 20:28:37,667 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [368 Valid, 1116 Invalid, 2062 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 1961 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-03 20:28:37,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5994 states. [2022-03-03 20:28:37,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5994 to 5433. [2022-03-03 20:28:37,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5433 states, 5432 states have (on average 3.393225331369661) internal successors, (18432), 5432 states have internal predecessors, (18432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:37,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5433 states to 5433 states and 18432 transitions. [2022-03-03 20:28:37,738 INFO L78 Accepts]: Start accepts. Automaton has 5433 states and 18432 transitions. Word has length 39 [2022-03-03 20:28:37,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:28:37,738 INFO L470 AbstractCegarLoop]: Abstraction has 5433 states and 18432 transitions. [2022-03-03 20:28:37,738 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:37,738 INFO L276 IsEmpty]: Start isEmpty. Operand 5433 states and 18432 transitions. [2022-03-03 20:28:37,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:28:37,745 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:28:37,745 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:28:37,745 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable426 [2022-03-03 20:28:37,745 INFO L402 AbstractCegarLoop]: === Iteration 428 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:28:37,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:28:37,745 INFO L85 PathProgramCache]: Analyzing trace with hash 1138684586, now seen corresponding path program 428 times [2022-03-03 20:28:37,745 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:28:37,745 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128516291] [2022-03-03 20:28:37,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:28:37,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:28:37,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:28:37,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:28:37,964 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:28:37,964 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128516291] [2022-03-03 20:28:37,964 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128516291] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:28:37,964 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:28:37,964 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:28:37,964 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703159274] [2022-03-03 20:28:37,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:28:37,964 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:28:37,964 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:28:37,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:28:37,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:28:37,965 INFO L87 Difference]: Start difference. First operand 5433 states and 18432 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:39,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:28:39,333 INFO L93 Difference]: Finished difference Result 5985 states and 20067 transitions. [2022-03-03 20:28:39,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-03-03 20:28:39,333 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:28:39,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:28:39,345 INFO L225 Difference]: With dead ends: 5985 [2022-03-03 20:28:39,345 INFO L226 Difference]: Without dead ends: 5918 [2022-03-03 20:28:39,346 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1101 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=392, Invalid=3768, Unknown=0, NotChecked=0, Total=4160 [2022-03-03 20:28:39,346 INFO L933 BasicCegarLoop]: 107 mSDtfsCounter, 313 mSDsluCounter, 1289 mSDsCounter, 0 mSdLazyCounter, 1799 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 1078 SdHoareTripleChecker+Invalid, 1895 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 1799 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:28:39,346 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [313 Valid, 1078 Invalid, 1895 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 1799 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:28:39,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5918 states. [2022-03-03 20:28:39,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5918 to 5457. [2022-03-03 20:28:39,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5457 states, 5456 states have (on average 3.3925953079178885) internal successors, (18510), 5456 states have internal predecessors, (18510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:39,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5457 states to 5457 states and 18510 transitions. [2022-03-03 20:28:39,464 INFO L78 Accepts]: Start accepts. Automaton has 5457 states and 18510 transitions. Word has length 39 [2022-03-03 20:28:39,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:28:39,464 INFO L470 AbstractCegarLoop]: Abstraction has 5457 states and 18510 transitions. [2022-03-03 20:28:39,464 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:39,464 INFO L276 IsEmpty]: Start isEmpty. Operand 5457 states and 18510 transitions. [2022-03-03 20:28:39,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:28:39,470 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:28:39,470 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:28:39,470 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable427 [2022-03-03 20:28:39,471 INFO L402 AbstractCegarLoop]: === Iteration 429 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:28:39,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:28:39,471 INFO L85 PathProgramCache]: Analyzing trace with hash 1008089738, now seen corresponding path program 429 times [2022-03-03 20:28:39,471 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:28:39,471 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654999915] [2022-03-03 20:28:39,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:28:39,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:28:39,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:28:39,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:28:39,687 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:28:39,687 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654999915] [2022-03-03 20:28:39,687 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654999915] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:28:39,687 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:28:39,687 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:28:39,687 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750538260] [2022-03-03 20:28:39,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:28:39,688 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:28:39,688 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:28:39,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:28:39,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:28:39,688 INFO L87 Difference]: Start difference. First operand 5457 states and 18510 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:40,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:28:40,976 INFO L93 Difference]: Finished difference Result 5988 states and 20026 transitions. [2022-03-03 20:28:40,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-03-03 20:28:40,977 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:28:40,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:28:40,988 INFO L225 Difference]: With dead ends: 5988 [2022-03-03 20:28:40,988 INFO L226 Difference]: Without dead ends: 5925 [2022-03-03 20:28:40,988 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 878 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=350, Invalid=3190, Unknown=0, NotChecked=0, Total=3540 [2022-03-03 20:28:40,988 INFO L933 BasicCegarLoop]: 96 mSDtfsCounter, 285 mSDsluCounter, 1209 mSDsCounter, 0 mSdLazyCounter, 1650 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 983 SdHoareTripleChecker+Invalid, 1731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 1650 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:28:40,988 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [285 Valid, 983 Invalid, 1731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 1650 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:28:40,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5925 states. [2022-03-03 20:28:41,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5925 to 5457. [2022-03-03 20:28:41,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5457 states, 5456 states have (on average 3.3918621700879767) internal successors, (18506), 5456 states have internal predecessors, (18506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:41,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5457 states to 5457 states and 18506 transitions. [2022-03-03 20:28:41,056 INFO L78 Accepts]: Start accepts. Automaton has 5457 states and 18506 transitions. Word has length 39 [2022-03-03 20:28:41,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:28:41,056 INFO L470 AbstractCegarLoop]: Abstraction has 5457 states and 18506 transitions. [2022-03-03 20:28:41,056 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:41,056 INFO L276 IsEmpty]: Start isEmpty. Operand 5457 states and 18506 transitions. [2022-03-03 20:28:41,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:28:41,064 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:28:41,064 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:28:41,064 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable428 [2022-03-03 20:28:41,064 INFO L402 AbstractCegarLoop]: === Iteration 430 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:28:41,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:28:41,064 INFO L85 PathProgramCache]: Analyzing trace with hash 872411146, now seen corresponding path program 430 times [2022-03-03 20:28:41,064 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:28:41,064 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683645239] [2022-03-03 20:28:41,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:28:41,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:28:41,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:28:41,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:28:41,285 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:28:41,285 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683645239] [2022-03-03 20:28:41,285 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683645239] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:28:41,286 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:28:41,286 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:28:41,286 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890728619] [2022-03-03 20:28:41,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:28:41,286 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:28:41,286 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:28:41,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:28:41,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:28:41,286 INFO L87 Difference]: Start difference. First operand 5457 states and 18506 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:43,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:28:43,027 INFO L93 Difference]: Finished difference Result 6136 states and 20400 transitions. [2022-03-03 20:28:43,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-03-03 20:28:43,027 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:28:43,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:28:43,038 INFO L225 Difference]: With dead ends: 6136 [2022-03-03 20:28:43,038 INFO L226 Difference]: Without dead ends: 6093 [2022-03-03 20:28:43,038 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1387 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=429, Invalid=4541, Unknown=0, NotChecked=0, Total=4970 [2022-03-03 20:28:43,038 INFO L933 BasicCegarLoop]: 109 mSDtfsCounter, 346 mSDsluCounter, 1407 mSDsCounter, 0 mSdLazyCounter, 2097 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 1172 SdHoareTripleChecker+Invalid, 2187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 2097 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-03 20:28:43,038 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [346 Valid, 1172 Invalid, 2187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 2097 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-03 20:28:43,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6093 states. [2022-03-03 20:28:43,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6093 to 5469. [2022-03-03 20:28:43,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5469 states, 5468 states have (on average 3.391002194586686) internal successors, (18542), 5468 states have internal predecessors, (18542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:43,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5469 states to 5469 states and 18542 transitions. [2022-03-03 20:28:43,110 INFO L78 Accepts]: Start accepts. Automaton has 5469 states and 18542 transitions. Word has length 39 [2022-03-03 20:28:43,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:28:43,110 INFO L470 AbstractCegarLoop]: Abstraction has 5469 states and 18542 transitions. [2022-03-03 20:28:43,110 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:43,110 INFO L276 IsEmpty]: Start isEmpty. Operand 5469 states and 18542 transitions. [2022-03-03 20:28:43,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:28:43,117 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:28:43,117 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:28:43,117 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable429 [2022-03-03 20:28:43,117 INFO L402 AbstractCegarLoop]: === Iteration 431 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:28:43,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:28:43,117 INFO L85 PathProgramCache]: Analyzing trace with hash -908187156, now seen corresponding path program 431 times [2022-03-03 20:28:43,117 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:28:43,117 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877383042] [2022-03-03 20:28:43,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:28:43,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:28:43,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:28:43,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:28:43,336 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:28:43,336 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877383042] [2022-03-03 20:28:43,336 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877383042] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:28:43,336 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:28:43,336 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:28:43,336 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262435984] [2022-03-03 20:28:43,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:28:43,337 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:28:43,337 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:28:43,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:28:43,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:28:43,337 INFO L87 Difference]: Start difference. First operand 5469 states and 18542 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:44,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:28:44,762 INFO L93 Difference]: Finished difference Result 6124 states and 20362 transitions. [2022-03-03 20:28:44,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2022-03-03 20:28:44,762 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:28:44,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:28:44,773 INFO L225 Difference]: With dead ends: 6124 [2022-03-03 20:28:44,773 INFO L226 Difference]: Without dead ends: 6072 [2022-03-03 20:28:44,774 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1333 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=418, Invalid=4412, Unknown=0, NotChecked=0, Total=4830 [2022-03-03 20:28:44,774 INFO L933 BasicCegarLoop]: 107 mSDtfsCounter, 338 mSDsluCounter, 1386 mSDsCounter, 0 mSdLazyCounter, 1982 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 338 SdHoareTripleChecker+Valid, 1161 SdHoareTripleChecker+Invalid, 2067 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 1982 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:28:44,774 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [338 Valid, 1161 Invalid, 2067 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 1982 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:28:44,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6072 states. [2022-03-03 20:28:44,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6072 to 5461. [2022-03-03 20:28:44,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5461 states, 5460 states have (on average 3.3923076923076922) internal successors, (18522), 5460 states have internal predecessors, (18522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:44,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5461 states to 5461 states and 18522 transitions. [2022-03-03 20:28:44,845 INFO L78 Accepts]: Start accepts. Automaton has 5461 states and 18522 transitions. Word has length 39 [2022-03-03 20:28:44,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:28:44,845 INFO L470 AbstractCegarLoop]: Abstraction has 5461 states and 18522 transitions. [2022-03-03 20:28:44,845 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:44,845 INFO L276 IsEmpty]: Start isEmpty. Operand 5461 states and 18522 transitions. [2022-03-03 20:28:44,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:28:44,852 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:28:44,852 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:28:44,852 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable430 [2022-03-03 20:28:44,852 INFO L402 AbstractCegarLoop]: === Iteration 432 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:28:44,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:28:44,852 INFO L85 PathProgramCache]: Analyzing trace with hash 1790894716, now seen corresponding path program 432 times [2022-03-03 20:28:44,852 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:28:44,852 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748491618] [2022-03-03 20:28:44,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:28:44,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:28:44,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:28:45,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:28:45,051 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:28:45,051 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748491618] [2022-03-03 20:28:45,051 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748491618] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:28:45,052 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:28:45,052 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:28:45,052 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181399550] [2022-03-03 20:28:45,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:28:45,052 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:28:45,052 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:28:45,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:28:45,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:28:45,052 INFO L87 Difference]: Start difference. First operand 5461 states and 18522 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:46,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:28:46,030 INFO L93 Difference]: Finished difference Result 6057 states and 20163 transitions. [2022-03-03 20:28:46,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-03-03 20:28:46,031 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:28:46,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:28:46,042 INFO L225 Difference]: With dead ends: 6057 [2022-03-03 20:28:46,042 INFO L226 Difference]: Without dead ends: 6002 [2022-03-03 20:28:46,042 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 875 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=349, Invalid=3191, Unknown=0, NotChecked=0, Total=3540 [2022-03-03 20:28:46,043 INFO L933 BasicCegarLoop]: 91 mSDtfsCounter, 289 mSDsluCounter, 1202 mSDsCounter, 0 mSdLazyCounter, 1639 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 953 SdHoareTripleChecker+Invalid, 1713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 1639 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 20:28:46,043 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [289 Valid, 953 Invalid, 1713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 1639 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 20:28:46,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6002 states. [2022-03-03 20:28:46,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6002 to 5463. [2022-03-03 20:28:46,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5463 states, 5462 states have (on average 3.3916147931160747) internal successors, (18525), 5462 states have internal predecessors, (18525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:46,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5463 states to 5463 states and 18525 transitions. [2022-03-03 20:28:46,120 INFO L78 Accepts]: Start accepts. Automaton has 5463 states and 18525 transitions. Word has length 39 [2022-03-03 20:28:46,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:28:46,121 INFO L470 AbstractCegarLoop]: Abstraction has 5463 states and 18525 transitions. [2022-03-03 20:28:46,121 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:46,121 INFO L276 IsEmpty]: Start isEmpty. Operand 5463 states and 18525 transitions. [2022-03-03 20:28:46,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:28:46,129 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:28:46,129 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:28:46,129 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable431 [2022-03-03 20:28:46,129 INFO L402 AbstractCegarLoop]: === Iteration 433 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:28:46,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:28:46,129 INFO L85 PathProgramCache]: Analyzing trace with hash -1331420358, now seen corresponding path program 433 times [2022-03-03 20:28:46,129 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:28:46,129 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559389957] [2022-03-03 20:28:46,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:28:46,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:28:46,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:28:46,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:28:46,361 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:28:46,361 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559389957] [2022-03-03 20:28:46,361 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559389957] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:28:46,361 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:28:46,361 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:28:46,361 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198982146] [2022-03-03 20:28:46,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:28:46,361 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:28:46,361 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:28:46,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:28:46,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:28:46,361 INFO L87 Difference]: Start difference. First operand 5463 states and 18525 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:47,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:28:47,302 INFO L93 Difference]: Finished difference Result 5995 states and 20018 transitions. [2022-03-03 20:28:47,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-03-03 20:28:47,302 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:28:47,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:28:47,314 INFO L225 Difference]: With dead ends: 5995 [2022-03-03 20:28:47,314 INFO L226 Difference]: Without dead ends: 5949 [2022-03-03 20:28:47,315 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 716 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=308, Invalid=2772, Unknown=0, NotChecked=0, Total=3080 [2022-03-03 20:28:47,315 INFO L933 BasicCegarLoop]: 88 mSDtfsCounter, 274 mSDsluCounter, 1182 mSDsCounter, 0 mSdLazyCounter, 1605 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 939 SdHoareTripleChecker+Invalid, 1666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 1605 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 20:28:47,315 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [274 Valid, 939 Invalid, 1666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 1605 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 20:28:47,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5949 states. [2022-03-03 20:28:47,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5949 to 5467. [2022-03-03 20:28:47,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5467 states, 5466 states have (on average 3.390596414196853) internal successors, (18533), 5466 states have internal predecessors, (18533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:47,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5467 states to 5467 states and 18533 transitions. [2022-03-03 20:28:47,397 INFO L78 Accepts]: Start accepts. Automaton has 5467 states and 18533 transitions. Word has length 39 [2022-03-03 20:28:47,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:28:47,397 INFO L470 AbstractCegarLoop]: Abstraction has 5467 states and 18533 transitions. [2022-03-03 20:28:47,397 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:47,397 INFO L276 IsEmpty]: Start isEmpty. Operand 5467 states and 18533 transitions. [2022-03-03 20:28:47,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:28:47,405 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:28:47,405 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:28:47,405 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable432 [2022-03-03 20:28:47,405 INFO L402 AbstractCegarLoop]: === Iteration 434 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:28:47,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:28:47,406 INFO L85 PathProgramCache]: Analyzing trace with hash -1578886520, now seen corresponding path program 434 times [2022-03-03 20:28:47,406 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:28:47,406 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230656325] [2022-03-03 20:28:47,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:28:47,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:28:47,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:28:47,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:28:47,595 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:28:47,595 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230656325] [2022-03-03 20:28:47,595 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230656325] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:28:47,595 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:28:47,595 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:28:47,595 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962859471] [2022-03-03 20:28:47,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:28:47,595 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:28:47,595 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:28:47,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:28:47,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:28:47,596 INFO L87 Difference]: Start difference. First operand 5467 states and 18533 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:48,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:28:48,844 INFO L93 Difference]: Finished difference Result 5988 states and 19995 transitions. [2022-03-03 20:28:48,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-03-03 20:28:48,844 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:28:48,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:28:48,855 INFO L225 Difference]: With dead ends: 5988 [2022-03-03 20:28:48,855 INFO L226 Difference]: Without dead ends: 5939 [2022-03-03 20:28:48,855 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 754 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=321, Invalid=2871, Unknown=0, NotChecked=0, Total=3192 [2022-03-03 20:28:48,855 INFO L933 BasicCegarLoop]: 89 mSDtfsCounter, 280 mSDsluCounter, 1203 mSDsCounter, 0 mSdLazyCounter, 1605 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 957 SdHoareTripleChecker+Invalid, 1676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 1605 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:28:48,855 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [280 Valid, 957 Invalid, 1676 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 1605 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:28:48,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5939 states. [2022-03-03 20:28:48,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5939 to 5457. [2022-03-03 20:28:48,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5457 states, 5456 states have (on average 3.393328445747801) internal successors, (18514), 5456 states have internal predecessors, (18514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:48,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5457 states to 5457 states and 18514 transitions. [2022-03-03 20:28:48,922 INFO L78 Accepts]: Start accepts. Automaton has 5457 states and 18514 transitions. Word has length 39 [2022-03-03 20:28:48,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:28:48,922 INFO L470 AbstractCegarLoop]: Abstraction has 5457 states and 18514 transitions. [2022-03-03 20:28:48,922 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:48,922 INFO L276 IsEmpty]: Start isEmpty. Operand 5457 states and 18514 transitions. [2022-03-03 20:28:48,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:28:48,929 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:28:48,929 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:28:48,929 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable433 [2022-03-03 20:28:48,929 INFO L402 AbstractCegarLoop]: === Iteration 435 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:28:48,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:28:48,929 INFO L85 PathProgramCache]: Analyzing trace with hash 2075011752, now seen corresponding path program 435 times [2022-03-03 20:28:48,929 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:28:48,929 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364622365] [2022-03-03 20:28:48,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:28:48,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:28:48,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:28:49,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:28:49,146 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:28:49,146 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364622365] [2022-03-03 20:28:49,147 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364622365] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:28:49,147 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:28:49,147 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:28:49,147 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905736478] [2022-03-03 20:28:49,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:28:49,147 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:28:49,147 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:28:49,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:28:49,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:28:49,147 INFO L87 Difference]: Start difference. First operand 5457 states and 18514 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:50,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:28:50,380 INFO L93 Difference]: Finished difference Result 5919 states and 19880 transitions. [2022-03-03 20:28:50,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-03-03 20:28:50,380 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:28:50,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:28:50,391 INFO L225 Difference]: With dead ends: 5919 [2022-03-03 20:28:50,391 INFO L226 Difference]: Without dead ends: 5852 [2022-03-03 20:28:50,392 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 839 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=329, Invalid=3093, Unknown=0, NotChecked=0, Total=3422 [2022-03-03 20:28:50,392 INFO L933 BasicCegarLoop]: 106 mSDtfsCounter, 310 mSDsluCounter, 1238 mSDsCounter, 0 mSdLazyCounter, 1814 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 1039 SdHoareTripleChecker+Invalid, 1890 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 1814 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:28:50,392 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [310 Valid, 1039 Invalid, 1890 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 1814 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:28:50,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5852 states. [2022-03-03 20:28:50,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5852 to 5475. [2022-03-03 20:28:50,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5475 states, 5474 states have (on average 3.390938984289368) internal successors, (18562), 5474 states have internal predecessors, (18562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:50,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5475 states to 5475 states and 18562 transitions. [2022-03-03 20:28:50,462 INFO L78 Accepts]: Start accepts. Automaton has 5475 states and 18562 transitions. Word has length 39 [2022-03-03 20:28:50,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:28:50,462 INFO L470 AbstractCegarLoop]: Abstraction has 5475 states and 18562 transitions. [2022-03-03 20:28:50,462 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:50,462 INFO L276 IsEmpty]: Start isEmpty. Operand 5475 states and 18562 transitions. [2022-03-03 20:28:50,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:28:50,469 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:28:50,469 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:28:50,469 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable434 [2022-03-03 20:28:50,469 INFO L402 AbstractCegarLoop]: === Iteration 436 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:28:50,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:28:50,469 INFO L85 PathProgramCache]: Analyzing trace with hash 355395782, now seen corresponding path program 436 times [2022-03-03 20:28:50,469 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:28:50,469 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082538842] [2022-03-03 20:28:50,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:28:50,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:28:50,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:28:50,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:28:50,685 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:28:50,685 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082538842] [2022-03-03 20:28:50,685 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082538842] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:28:50,685 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:28:50,685 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:28:50,685 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248149187] [2022-03-03 20:28:50,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:28:50,685 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:28:50,685 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:28:50,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:28:50,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:28:50,685 INFO L87 Difference]: Start difference. First operand 5475 states and 18562 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:51,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:28:51,849 INFO L93 Difference]: Finished difference Result 6037 states and 20158 transitions. [2022-03-03 20:28:51,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-03-03 20:28:51,849 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:28:51,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:28:51,861 INFO L225 Difference]: With dead ends: 6037 [2022-03-03 20:28:51,861 INFO L226 Difference]: Without dead ends: 5994 [2022-03-03 20:28:51,862 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1138 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=381, Invalid=3909, Unknown=0, NotChecked=0, Total=4290 [2022-03-03 20:28:51,862 INFO L933 BasicCegarLoop]: 111 mSDtfsCounter, 353 mSDsluCounter, 1386 mSDsCounter, 0 mSdLazyCounter, 2127 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 353 SdHoareTripleChecker+Valid, 1154 SdHoareTripleChecker+Invalid, 2208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 2127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:28:51,862 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [353 Valid, 1154 Invalid, 2208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 2127 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:28:51,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5994 states. [2022-03-03 20:28:51,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5994 to 5481. [2022-03-03 20:28:51,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5481 states, 5480 states have (on average 3.3895985401459856) internal successors, (18575), 5480 states have internal predecessors, (18575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:51,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5481 states to 5481 states and 18575 transitions. [2022-03-03 20:28:51,946 INFO L78 Accepts]: Start accepts. Automaton has 5481 states and 18575 transitions. Word has length 39 [2022-03-03 20:28:51,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:28:51,946 INFO L470 AbstractCegarLoop]: Abstraction has 5481 states and 18575 transitions. [2022-03-03 20:28:51,947 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:51,947 INFO L276 IsEmpty]: Start isEmpty. Operand 5481 states and 18575 transitions. [2022-03-03 20:28:51,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:28:51,955 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:28:51,955 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:28:51,955 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable435 [2022-03-03 20:28:51,955 INFO L402 AbstractCegarLoop]: === Iteration 437 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:28:51,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:28:51,955 INFO L85 PathProgramCache]: Analyzing trace with hash -1425202520, now seen corresponding path program 437 times [2022-03-03 20:28:51,955 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:28:51,955 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559016312] [2022-03-03 20:28:51,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:28:51,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:28:51,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:28:52,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:28:52,185 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:28:52,185 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559016312] [2022-03-03 20:28:52,185 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559016312] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:28:52,185 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:28:52,185 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:28:52,185 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343822952] [2022-03-03 20:28:52,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:28:52,185 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:28:52,185 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:28:52,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:28:52,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:28:52,185 INFO L87 Difference]: Start difference. First operand 5481 states and 18575 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:53,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:28:53,513 INFO L93 Difference]: Finished difference Result 5986 states and 20035 transitions. [2022-03-03 20:28:53,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-03-03 20:28:53,513 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:28:53,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:28:53,524 INFO L225 Difference]: With dead ends: 5986 [2022-03-03 20:28:53,524 INFO L226 Difference]: Without dead ends: 5922 [2022-03-03 20:28:53,525 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1001 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=350, Invalid=3556, Unknown=0, NotChecked=0, Total=3906 [2022-03-03 20:28:53,525 INFO L933 BasicCegarLoop]: 107 mSDtfsCounter, 341 mSDsluCounter, 1337 mSDsCounter, 0 mSdLazyCounter, 2012 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 341 SdHoareTripleChecker+Valid, 1115 SdHoareTripleChecker+Invalid, 2089 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 2012 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:28:53,525 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [341 Valid, 1115 Invalid, 2089 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 2012 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:28:53,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5922 states. [2022-03-03 20:28:53,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5922 to 5457. [2022-03-03 20:28:53,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5457 states, 5456 states have (on average 3.393328445747801) internal successors, (18514), 5456 states have internal predecessors, (18514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:53,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5457 states to 5457 states and 18514 transitions. [2022-03-03 20:28:53,606 INFO L78 Accepts]: Start accepts. Automaton has 5457 states and 18514 transitions. Word has length 39 [2022-03-03 20:28:53,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:28:53,606 INFO L470 AbstractCegarLoop]: Abstraction has 5457 states and 18514 transitions. [2022-03-03 20:28:53,606 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:53,606 INFO L276 IsEmpty]: Start isEmpty. Operand 5457 states and 18514 transitions. [2022-03-03 20:28:53,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:28:53,631 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:28:53,631 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:28:53,631 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable436 [2022-03-03 20:28:53,631 INFO L402 AbstractCegarLoop]: === Iteration 438 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:28:53,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:28:53,632 INFO L85 PathProgramCache]: Analyzing trace with hash -120347224, now seen corresponding path program 438 times [2022-03-03 20:28:53,632 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:28:53,632 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124743082] [2022-03-03 20:28:53,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:28:53,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:28:53,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:28:53,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:28:53,781 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:28:53,781 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124743082] [2022-03-03 20:28:53,781 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124743082] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:28:53,781 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:28:53,781 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:28:53,781 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768830450] [2022-03-03 20:28:53,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:28:53,781 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:28:53,781 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:28:53,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:28:53,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:28:53,782 INFO L87 Difference]: Start difference. First operand 5457 states and 18514 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:54,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:28:54,641 INFO L93 Difference]: Finished difference Result 5895 states and 19810 transitions. [2022-03-03 20:28:54,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-03-03 20:28:54,641 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:28:54,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:28:54,653 INFO L225 Difference]: With dead ends: 5895 [2022-03-03 20:28:54,653 INFO L226 Difference]: Without dead ends: 5828 [2022-03-03 20:28:54,653 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 760 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=296, Invalid=2896, Unknown=0, NotChecked=0, Total=3192 [2022-03-03 20:28:54,653 INFO L933 BasicCegarLoop]: 105 mSDtfsCounter, 279 mSDsluCounter, 1232 mSDsCounter, 0 mSdLazyCounter, 1807 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 1032 SdHoareTripleChecker+Invalid, 1880 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 1807 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 20:28:54,653 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [279 Valid, 1032 Invalid, 1880 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 1807 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 20:28:54,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5828 states. [2022-03-03 20:28:54,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5828 to 5475. [2022-03-03 20:28:54,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5475 states, 5474 states have (on average 3.389842893679211) internal successors, (18556), 5474 states have internal predecessors, (18556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:54,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5475 states to 5475 states and 18556 transitions. [2022-03-03 20:28:54,733 INFO L78 Accepts]: Start accepts. Automaton has 5475 states and 18556 transitions. Word has length 39 [2022-03-03 20:28:54,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:28:54,733 INFO L470 AbstractCegarLoop]: Abstraction has 5475 states and 18556 transitions. [2022-03-03 20:28:54,733 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:54,733 INFO L276 IsEmpty]: Start isEmpty. Operand 5475 states and 18556 transitions. [2022-03-03 20:28:54,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:28:54,741 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:28:54,741 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:28:54,741 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable437 [2022-03-03 20:28:54,741 INFO L402 AbstractCegarLoop]: === Iteration 439 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:28:54,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:28:54,741 INFO L85 PathProgramCache]: Analyzing trace with hash 237722984, now seen corresponding path program 439 times [2022-03-03 20:28:54,741 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:28:54,741 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441388401] [2022-03-03 20:28:54,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:28:54,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:28:54,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:28:54,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:28:54,884 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:28:54,884 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441388401] [2022-03-03 20:28:54,884 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441388401] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:28:54,884 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:28:54,884 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:28:54,884 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395379391] [2022-03-03 20:28:54,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:28:54,884 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:28:54,884 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:28:54,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:28:54,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:28:54,884 INFO L87 Difference]: Start difference. First operand 5475 states and 18556 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:55,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:28:55,649 INFO L93 Difference]: Finished difference Result 5898 states and 19767 transitions. [2022-03-03 20:28:55,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-03 20:28:55,649 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:28:55,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:28:55,661 INFO L225 Difference]: With dead ends: 5898 [2022-03-03 20:28:55,661 INFO L226 Difference]: Without dead ends: 5855 [2022-03-03 20:28:55,661 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 544 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=245, Invalid=2305, Unknown=0, NotChecked=0, Total=2550 [2022-03-03 20:28:55,661 INFO L933 BasicCegarLoop]: 90 mSDtfsCounter, 254 mSDsluCounter, 1135 mSDsCounter, 0 mSdLazyCounter, 1654 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 904 SdHoareTripleChecker+Invalid, 1707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 1654 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 20:28:55,661 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [254 Valid, 904 Invalid, 1707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 1654 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 20:28:55,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5855 states. [2022-03-03 20:28:55,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5855 to 5493. [2022-03-03 20:28:55,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5493 states, 5492 states have (on average 3.385833940276766) internal successors, (18595), 5492 states have internal predecessors, (18595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:55,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5493 states to 5493 states and 18595 transitions. [2022-03-03 20:28:55,741 INFO L78 Accepts]: Start accepts. Automaton has 5493 states and 18595 transitions. Word has length 39 [2022-03-03 20:28:55,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:28:55,741 INFO L470 AbstractCegarLoop]: Abstraction has 5493 states and 18595 transitions. [2022-03-03 20:28:55,741 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:55,741 INFO L276 IsEmpty]: Start isEmpty. Operand 5493 states and 18595 transitions. [2022-03-03 20:28:55,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:28:55,749 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:28:55,749 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:28:55,749 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable438 [2022-03-03 20:28:55,749 INFO L402 AbstractCegarLoop]: === Iteration 440 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:28:55,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:28:55,749 INFO L85 PathProgramCache]: Analyzing trace with hash 1067254154, now seen corresponding path program 440 times [2022-03-03 20:28:55,749 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:28:55,749 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474755851] [2022-03-03 20:28:55,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:28:55,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:28:55,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:28:56,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:28:56,007 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:28:56,007 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474755851] [2022-03-03 20:28:56,007 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474755851] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:28:56,007 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:28:56,007 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:28:56,007 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254499899] [2022-03-03 20:28:56,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:28:56,007 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:28:56,007 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:28:56,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:28:56,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:28:56,007 INFO L87 Difference]: Start difference. First operand 5493 states and 18595 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:57,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:28:57,154 INFO L93 Difference]: Finished difference Result 5853 states and 19663 transitions. [2022-03-03 20:28:57,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-03 20:28:57,154 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:28:57,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:28:57,165 INFO L225 Difference]: With dead ends: 5853 [2022-03-03 20:28:57,165 INFO L226 Difference]: Without dead ends: 5790 [2022-03-03 20:28:57,165 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 581 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=250, Invalid=2402, Unknown=0, NotChecked=0, Total=2652 [2022-03-03 20:28:57,165 INFO L933 BasicCegarLoop]: 94 mSDtfsCounter, 255 mSDsluCounter, 1165 mSDsCounter, 0 mSdLazyCounter, 1697 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 929 SdHoareTripleChecker+Invalid, 1754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 1697 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:28:57,165 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [255 Valid, 929 Invalid, 1754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 1697 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:28:57,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5790 states. [2022-03-03 20:28:57,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5790 to 5475. [2022-03-03 20:28:57,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5475 states, 5474 states have (on average 3.3887468030690537) internal successors, (18550), 5474 states have internal predecessors, (18550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:57,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5475 states to 5475 states and 18550 transitions. [2022-03-03 20:28:57,232 INFO L78 Accepts]: Start accepts. Automaton has 5475 states and 18550 transitions. Word has length 39 [2022-03-03 20:28:57,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:28:57,232 INFO L470 AbstractCegarLoop]: Abstraction has 5475 states and 18550 transitions. [2022-03-03 20:28:57,232 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:57,232 INFO L276 IsEmpty]: Start isEmpty. Operand 5475 states and 18550 transitions. [2022-03-03 20:28:57,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:28:57,239 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:28:57,239 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:28:57,239 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable439 [2022-03-03 20:28:57,239 INFO L402 AbstractCegarLoop]: === Iteration 441 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:28:57,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:28:57,239 INFO L85 PathProgramCache]: Analyzing trace with hash 1866028038, now seen corresponding path program 441 times [2022-03-03 20:28:57,239 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:28:57,239 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710006610] [2022-03-03 20:28:57,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:28:57,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:28:57,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:28:57,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:28:57,456 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:28:57,456 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710006610] [2022-03-03 20:28:57,457 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710006610] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:28:57,457 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:28:57,457 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:28:57,457 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231103369] [2022-03-03 20:28:57,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:28:57,457 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:28:57,457 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:28:57,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:28:57,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:28:57,457 INFO L87 Difference]: Start difference. First operand 5475 states and 18550 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:58,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:28:58,980 INFO L93 Difference]: Finished difference Result 6043 states and 20131 transitions. [2022-03-03 20:28:58,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-03-03 20:28:58,980 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:28:58,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:28:58,991 INFO L225 Difference]: With dead ends: 6043 [2022-03-03 20:28:58,991 INFO L226 Difference]: Without dead ends: 6000 [2022-03-03 20:28:58,992 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 956 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=328, Invalid=3454, Unknown=0, NotChecked=0, Total=3782 [2022-03-03 20:28:58,992 INFO L933 BasicCegarLoop]: 109 mSDtfsCounter, 305 mSDsluCounter, 1382 mSDsCounter, 0 mSdLazyCounter, 2140 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 305 SdHoareTripleChecker+Valid, 1143 SdHoareTripleChecker+Invalid, 2199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 2140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-03 20:28:58,992 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [305 Valid, 1143 Invalid, 2199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 2140 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-03 20:28:58,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6000 states. [2022-03-03 20:28:59,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6000 to 5484. [2022-03-03 20:28:59,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5484 states, 5483 states have (on average 3.3875615538938537) internal successors, (18574), 5483 states have internal predecessors, (18574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:59,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5484 states to 5484 states and 18574 transitions. [2022-03-03 20:28:59,098 INFO L78 Accepts]: Start accepts. Automaton has 5484 states and 18574 transitions. Word has length 39 [2022-03-03 20:28:59,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:28:59,098 INFO L470 AbstractCegarLoop]: Abstraction has 5484 states and 18574 transitions. [2022-03-03 20:28:59,098 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:28:59,098 INFO L276 IsEmpty]: Start isEmpty. Operand 5484 states and 18574 transitions. [2022-03-03 20:28:59,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:28:59,105 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:28:59,105 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:28:59,105 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable440 [2022-03-03 20:28:59,105 INFO L402 AbstractCegarLoop]: === Iteration 442 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:28:59,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:28:59,106 INFO L85 PathProgramCache]: Analyzing trace with hash 85429736, now seen corresponding path program 442 times [2022-03-03 20:28:59,106 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:28:59,106 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653847335] [2022-03-03 20:28:59,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:28:59,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:28:59,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:28:59,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:28:59,326 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:28:59,326 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653847335] [2022-03-03 20:28:59,326 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653847335] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:28:59,327 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:28:59,327 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:28:59,327 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519492337] [2022-03-03 20:28:59,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:28:59,327 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:28:59,327 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:28:59,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:28:59,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:28:59,327 INFO L87 Difference]: Start difference. First operand 5484 states and 18574 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:00,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:29:00,795 INFO L93 Difference]: Finished difference Result 6046 states and 20132 transitions. [2022-03-03 20:29:00,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-03-03 20:29:00,795 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:29:00,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:29:00,806 INFO L225 Difference]: With dead ends: 6046 [2022-03-03 20:29:00,806 INFO L226 Difference]: Without dead ends: 5994 [2022-03-03 20:29:00,807 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 912 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=314, Invalid=3346, Unknown=0, NotChecked=0, Total=3660 [2022-03-03 20:29:00,807 INFO L933 BasicCegarLoop]: 109 mSDtfsCounter, 297 mSDsluCounter, 1391 mSDsCounter, 0 mSdLazyCounter, 2045 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 1154 SdHoareTripleChecker+Invalid, 2103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 2045 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-03 20:29:00,807 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [297 Valid, 1154 Invalid, 2103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 2045 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-03 20:29:00,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5994 states. [2022-03-03 20:29:00,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5994 to 5478. [2022-03-03 20:29:00,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5478 states, 5477 states have (on average 3.3883512872010226) internal successors, (18558), 5477 states have internal predecessors, (18558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:00,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5478 states to 5478 states and 18558 transitions. [2022-03-03 20:29:00,877 INFO L78 Accepts]: Start accepts. Automaton has 5478 states and 18558 transitions. Word has length 39 [2022-03-03 20:29:00,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:29:00,877 INFO L470 AbstractCegarLoop]: Abstraction has 5478 states and 18558 transitions. [2022-03-03 20:29:00,877 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:00,877 INFO L276 IsEmpty]: Start isEmpty. Operand 5478 states and 18558 transitions. [2022-03-03 20:29:00,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:29:00,884 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:29:00,884 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:29:00,884 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable441 [2022-03-03 20:29:00,884 INFO L402 AbstractCegarLoop]: === Iteration 443 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:29:00,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:29:00,884 INFO L85 PathProgramCache]: Analyzing trace with hash 328608808, now seen corresponding path program 443 times [2022-03-03 20:29:00,884 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:29:00,884 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34087962] [2022-03-03 20:29:00,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:29:00,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:29:00,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:29:01,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:29:01,100 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:29:01,100 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34087962] [2022-03-03 20:29:01,100 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34087962] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:29:01,100 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:29:01,100 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:29:01,100 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906279507] [2022-03-03 20:29:01,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:29:01,100 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:29:01,100 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:29:01,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:29:01,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:29:01,101 INFO L87 Difference]: Start difference. First operand 5478 states and 18558 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:02,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:29:02,215 INFO L93 Difference]: Finished difference Result 5985 states and 19951 transitions. [2022-03-03 20:29:02,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-03 20:29:02,216 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:29:02,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:29:02,227 INFO L225 Difference]: With dead ends: 5985 [2022-03-03 20:29:02,227 INFO L226 Difference]: Without dead ends: 5942 [2022-03-03 20:29:02,227 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 544 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=246, Invalid=2304, Unknown=0, NotChecked=0, Total=2550 [2022-03-03 20:29:02,227 INFO L933 BasicCegarLoop]: 89 mSDtfsCounter, 274 mSDsluCounter, 1167 mSDsCounter, 0 mSdLazyCounter, 1677 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 907 SdHoareTripleChecker+Invalid, 1725 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 1677 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:29:02,227 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [274 Valid, 907 Invalid, 1725 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 1677 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:29:02,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5942 states. [2022-03-03 20:29:02,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5942 to 5487. [2022-03-03 20:29:02,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5487 states, 5486 states have (on average 3.386620488516223) internal successors, (18579), 5486 states have internal predecessors, (18579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:02,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5487 states to 5487 states and 18579 transitions. [2022-03-03 20:29:02,335 INFO L78 Accepts]: Start accepts. Automaton has 5487 states and 18579 transitions. Word has length 39 [2022-03-03 20:29:02,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:29:02,335 INFO L470 AbstractCegarLoop]: Abstraction has 5487 states and 18579 transitions. [2022-03-03 20:29:02,335 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:02,335 INFO L276 IsEmpty]: Start isEmpty. Operand 5487 states and 18579 transitions. [2022-03-03 20:29:02,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:29:02,342 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:29:02,342 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:29:02,342 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable442 [2022-03-03 20:29:02,342 INFO L402 AbstractCegarLoop]: === Iteration 444 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:29:02,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:29:02,342 INFO L85 PathProgramCache]: Analyzing trace with hash 2078715944, now seen corresponding path program 444 times [2022-03-03 20:29:02,342 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:29:02,342 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097891422] [2022-03-03 20:29:02,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:29:02,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:29:02,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:29:02,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:29:02,558 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:29:02,558 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097891422] [2022-03-03 20:29:02,558 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097891422] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:29:02,558 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:29:02,558 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:29:02,558 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673835482] [2022-03-03 20:29:02,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:29:02,558 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:29:02,558 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:29:02,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:29:02,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:29:02,558 INFO L87 Difference]: Start difference. First operand 5487 states and 18579 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:03,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:29:03,531 INFO L93 Difference]: Finished difference Result 5954 states and 19884 transitions. [2022-03-03 20:29:03,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-03 20:29:03,531 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:29:03,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:29:03,542 INFO L225 Difference]: With dead ends: 5954 [2022-03-03 20:29:03,542 INFO L226 Difference]: Without dead ends: 5903 [2022-03-03 20:29:03,542 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 581 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=251, Invalid=2401, Unknown=0, NotChecked=0, Total=2652 [2022-03-03 20:29:03,542 INFO L933 BasicCegarLoop]: 90 mSDtfsCounter, 264 mSDsluCounter, 1178 mSDsCounter, 0 mSdLazyCounter, 1686 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 920 SdHoareTripleChecker+Invalid, 1743 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 1686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:29:03,542 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [264 Valid, 920 Invalid, 1743 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 1686 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:29:03,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5903 states. [2022-03-03 20:29:03,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5903 to 5481. [2022-03-03 20:29:03,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5481 states, 5480 states have (on average 3.387408759124088) internal successors, (18563), 5480 states have internal predecessors, (18563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:03,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5481 states to 5481 states and 18563 transitions. [2022-03-03 20:29:03,609 INFO L78 Accepts]: Start accepts. Automaton has 5481 states and 18563 transitions. Word has length 39 [2022-03-03 20:29:03,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:29:03,609 INFO L470 AbstractCegarLoop]: Abstraction has 5481 states and 18563 transitions. [2022-03-03 20:29:03,609 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:03,609 INFO L276 IsEmpty]: Start isEmpty. Operand 5481 states and 18563 transitions. [2022-03-03 20:29:03,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:29:03,616 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:29:03,616 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:29:03,616 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable443 [2022-03-03 20:29:03,616 INFO L402 AbstractCegarLoop]: === Iteration 445 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:29:03,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:29:03,616 INFO L85 PathProgramCache]: Analyzing trace with hash -1599032950, now seen corresponding path program 445 times [2022-03-03 20:29:03,616 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:29:03,616 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689824426] [2022-03-03 20:29:03,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:29:03,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:29:03,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:29:03,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:29:03,763 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:29:03,763 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689824426] [2022-03-03 20:29:03,763 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689824426] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:29:03,763 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:29:03,763 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:29:03,763 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496882317] [2022-03-03 20:29:03,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:29:03,764 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:29:03,764 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:29:03,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:29:03,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:29:03,764 INFO L87 Difference]: Start difference. First operand 5481 states and 18563 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:04,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:29:04,499 INFO L93 Difference]: Finished difference Result 5920 states and 19794 transitions. [2022-03-03 20:29:04,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-03 20:29:04,499 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:29:04,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:29:04,510 INFO L225 Difference]: With dead ends: 5920 [2022-03-03 20:29:04,510 INFO L226 Difference]: Without dead ends: 5874 [2022-03-03 20:29:04,510 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 480 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=225, Invalid=2127, Unknown=0, NotChecked=0, Total=2352 [2022-03-03 20:29:04,510 INFO L933 BasicCegarLoop]: 90 mSDtfsCounter, 251 mSDsluCounter, 1170 mSDsCounter, 0 mSdLazyCounter, 1675 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 917 SdHoareTripleChecker+Invalid, 1721 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 1675 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 20:29:04,511 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [251 Valid, 917 Invalid, 1721 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 1675 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 20:29:04,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5874 states. [2022-03-03 20:29:04,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5874 to 5488. [2022-03-03 20:29:04,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5488 states, 5487 states have (on average 3.3858210315290687) internal successors, (18578), 5487 states have internal predecessors, (18578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:04,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5488 states to 5488 states and 18578 transitions. [2022-03-03 20:29:04,606 INFO L78 Accepts]: Start accepts. Automaton has 5488 states and 18578 transitions. Word has length 39 [2022-03-03 20:29:04,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:29:04,606 INFO L470 AbstractCegarLoop]: Abstraction has 5488 states and 18578 transitions. [2022-03-03 20:29:04,606 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:04,606 INFO L276 IsEmpty]: Start isEmpty. Operand 5488 states and 18578 transitions. [2022-03-03 20:29:04,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:29:04,612 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:29:04,612 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:29:04,612 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable444 [2022-03-03 20:29:04,613 INFO L402 AbstractCegarLoop]: === Iteration 446 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:29:04,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:29:04,613 INFO L85 PathProgramCache]: Analyzing trace with hash 1260866856, now seen corresponding path program 446 times [2022-03-03 20:29:04,613 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:29:04,613 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318816434] [2022-03-03 20:29:04,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:29:04,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:29:04,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:29:04,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:29:04,777 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:29:04,777 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318816434] [2022-03-03 20:29:04,778 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318816434] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:29:04,778 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:29:04,778 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:29:04,778 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306146525] [2022-03-03 20:29:04,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:29:04,778 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:29:04,778 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:29:04,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:29:04,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:29:04,778 INFO L87 Difference]: Start difference. First operand 5488 states and 18578 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:05,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:29:05,839 INFO L93 Difference]: Finished difference Result 5886 states and 19719 transitions. [2022-03-03 20:29:05,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-03-03 20:29:05,839 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:29:05,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:29:05,850 INFO L225 Difference]: With dead ends: 5886 [2022-03-03 20:29:05,850 INFO L226 Difference]: Without dead ends: 5825 [2022-03-03 20:29:05,850 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 545 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=242, Invalid=2308, Unknown=0, NotChecked=0, Total=2550 [2022-03-03 20:29:05,850 INFO L933 BasicCegarLoop]: 91 mSDtfsCounter, 256 mSDsluCounter, 1159 mSDsCounter, 0 mSdLazyCounter, 1669 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 916 SdHoareTripleChecker+Invalid, 1721 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 1669 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:29:05,850 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [256 Valid, 916 Invalid, 1721 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 1669 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:29:05,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5825 states. [2022-03-03 20:29:05,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5825 to 5472. [2022-03-03 20:29:05,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5472 states, 5471 states have (on average 3.3898738804606103) internal successors, (18546), 5471 states have internal predecessors, (18546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:05,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5472 states to 5472 states and 18546 transitions. [2022-03-03 20:29:05,919 INFO L78 Accepts]: Start accepts. Automaton has 5472 states and 18546 transitions. Word has length 39 [2022-03-03 20:29:05,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:29:05,920 INFO L470 AbstractCegarLoop]: Abstraction has 5472 states and 18546 transitions. [2022-03-03 20:29:05,920 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:05,920 INFO L276 IsEmpty]: Start isEmpty. Operand 5472 states and 18546 transitions. [2022-03-03 20:29:05,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:29:05,927 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:29:05,927 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:29:05,927 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable445 [2022-03-03 20:29:05,927 INFO L402 AbstractCegarLoop]: === Iteration 447 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:29:05,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:29:05,927 INFO L85 PathProgramCache]: Analyzing trace with hash -1026303286, now seen corresponding path program 447 times [2022-03-03 20:29:05,927 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:29:05,927 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134247901] [2022-03-03 20:29:05,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:29:05,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:29:05,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:29:06,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:29:06,073 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:29:06,073 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134247901] [2022-03-03 20:29:06,073 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134247901] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:29:06,073 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:29:06,073 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:29:06,073 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064548080] [2022-03-03 20:29:06,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:29:06,074 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:29:06,074 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:29:06,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:29:06,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:29:06,074 INFO L87 Difference]: Start difference. First operand 5472 states and 18546 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:07,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:29:07,168 INFO L93 Difference]: Finished difference Result 5863 states and 19686 transitions. [2022-03-03 20:29:07,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-03-03 20:29:07,168 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:29:07,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:29:07,179 INFO L225 Difference]: With dead ends: 5863 [2022-03-03 20:29:07,179 INFO L226 Difference]: Without dead ends: 5800 [2022-03-03 20:29:07,180 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 653 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=283, Invalid=2579, Unknown=0, NotChecked=0, Total=2862 [2022-03-03 20:29:07,180 INFO L933 BasicCegarLoop]: 93 mSDtfsCounter, 242 mSDsluCounter, 1132 mSDsCounter, 0 mSdLazyCounter, 1618 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 929 SdHoareTripleChecker+Invalid, 1677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 1618 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:29:07,180 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [242 Valid, 929 Invalid, 1677 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 1618 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:29:07,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5800 states. [2022-03-03 20:29:07,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5800 to 5476. [2022-03-03 20:29:07,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5476 states, 5475 states have (on average 3.3892237442922375) internal successors, (18556), 5475 states have internal predecessors, (18556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:07,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5476 states to 5476 states and 18556 transitions. [2022-03-03 20:29:07,282 INFO L78 Accepts]: Start accepts. Automaton has 5476 states and 18556 transitions. Word has length 39 [2022-03-03 20:29:07,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:29:07,282 INFO L470 AbstractCegarLoop]: Abstraction has 5476 states and 18556 transitions. [2022-03-03 20:29:07,282 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:07,282 INFO L276 IsEmpty]: Start isEmpty. Operand 5476 states and 18556 transitions. [2022-03-03 20:29:07,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:29:07,289 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:29:07,289 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:29:07,289 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable446 [2022-03-03 20:29:07,289 INFO L402 AbstractCegarLoop]: === Iteration 448 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:29:07,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:29:07,289 INFO L85 PathProgramCache]: Analyzing trace with hash -1271795384, now seen corresponding path program 448 times [2022-03-03 20:29:07,289 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:29:07,289 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940610120] [2022-03-03 20:29:07,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:29:07,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:29:07,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:29:07,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:29:07,505 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:29:07,505 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940610120] [2022-03-03 20:29:07,505 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940610120] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:29:07,505 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:29:07,505 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:29:07,505 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561547111] [2022-03-03 20:29:07,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:29:07,505 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:29:07,505 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:29:07,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:29:07,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:29:07,506 INFO L87 Difference]: Start difference. First operand 5476 states and 18556 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:08,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:29:08,612 INFO L93 Difference]: Finished difference Result 5914 states and 19807 transitions. [2022-03-03 20:29:08,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-03 20:29:08,612 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:29:08,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:29:08,623 INFO L225 Difference]: With dead ends: 5914 [2022-03-03 20:29:08,623 INFO L226 Difference]: Without dead ends: 5871 [2022-03-03 20:29:08,623 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 581 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=256, Invalid=2396, Unknown=0, NotChecked=0, Total=2652 [2022-03-03 20:29:08,623 INFO L933 BasicCegarLoop]: 91 mSDtfsCounter, 260 mSDsluCounter, 1151 mSDsCounter, 0 mSdLazyCounter, 1656 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 918 SdHoareTripleChecker+Invalid, 1707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 1656 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:29:08,623 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [260 Valid, 918 Invalid, 1707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 1656 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:29:08,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5871 states. [2022-03-03 20:29:08,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5871 to 5494. [2022-03-03 20:29:08,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5494 states, 5493 states have (on average 3.385217549608593) internal successors, (18595), 5493 states have internal predecessors, (18595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:08,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5494 states to 5494 states and 18595 transitions. [2022-03-03 20:29:08,689 INFO L78 Accepts]: Start accepts. Automaton has 5494 states and 18595 transitions. Word has length 39 [2022-03-03 20:29:08,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:29:08,690 INFO L470 AbstractCegarLoop]: Abstraction has 5494 states and 18595 transitions. [2022-03-03 20:29:08,690 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:08,690 INFO L276 IsEmpty]: Start isEmpty. Operand 5494 states and 18595 transitions. [2022-03-03 20:29:08,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:29:08,696 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:29:08,697 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:29:08,697 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable447 [2022-03-03 20:29:08,697 INFO L402 AbstractCegarLoop]: === Iteration 449 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:29:08,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:29:08,697 INFO L85 PathProgramCache]: Analyzing trace with hash -442264214, now seen corresponding path program 449 times [2022-03-03 20:29:08,697 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:29:08,697 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701986461] [2022-03-03 20:29:08,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:29:08,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:29:08,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:29:08,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:29:08,919 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:29:08,920 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701986461] [2022-03-03 20:29:08,920 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701986461] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:29:08,920 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:29:08,920 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:29:08,920 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110467155] [2022-03-03 20:29:08,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:29:08,920 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:29:08,920 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:29:08,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:29:08,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:29:08,920 INFO L87 Difference]: Start difference. First operand 5494 states and 18595 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:10,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:29:10,015 INFO L93 Difference]: Finished difference Result 5851 states and 19652 transitions. [2022-03-03 20:29:10,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-03 20:29:10,015 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:29:10,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:29:10,026 INFO L225 Difference]: With dead ends: 5851 [2022-03-03 20:29:10,026 INFO L226 Difference]: Without dead ends: 5788 [2022-03-03 20:29:10,026 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 547 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=240, Invalid=2310, Unknown=0, NotChecked=0, Total=2550 [2022-03-03 20:29:10,026 INFO L933 BasicCegarLoop]: 94 mSDtfsCounter, 235 mSDsluCounter, 1170 mSDsCounter, 0 mSdLazyCounter, 1685 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 932 SdHoareTripleChecker+Invalid, 1738 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 1685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:29:10,026 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [235 Valid, 932 Invalid, 1738 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 1685 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:29:10,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5788 states. [2022-03-03 20:29:10,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5788 to 5476. [2022-03-03 20:29:10,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5476 states, 5475 states have (on average 3.3884931506849316) internal successors, (18552), 5475 states have internal predecessors, (18552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:10,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5476 states to 5476 states and 18552 transitions. [2022-03-03 20:29:10,160 INFO L78 Accepts]: Start accepts. Automaton has 5476 states and 18552 transitions. Word has length 39 [2022-03-03 20:29:10,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:29:10,160 INFO L470 AbstractCegarLoop]: Abstraction has 5476 states and 18552 transitions. [2022-03-03 20:29:10,160 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:10,160 INFO L276 IsEmpty]: Start isEmpty. Operand 5476 states and 18552 transitions. [2022-03-03 20:29:10,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:29:10,167 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:29:10,168 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:29:10,168 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable448 [2022-03-03 20:29:10,168 INFO L402 AbstractCegarLoop]: === Iteration 450 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:29:10,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:29:10,168 INFO L85 PathProgramCache]: Analyzing trace with hash 1839467274, now seen corresponding path program 450 times [2022-03-03 20:29:10,168 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:29:10,168 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770829091] [2022-03-03 20:29:10,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:29:10,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:29:10,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:29:10,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:29:10,388 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:29:10,388 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770829091] [2022-03-03 20:29:10,388 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770829091] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:29:10,388 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:29:10,388 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:29:10,388 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520643027] [2022-03-03 20:29:10,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:29:10,388 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:29:10,388 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:29:10,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:29:10,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:29:10,389 INFO L87 Difference]: Start difference. First operand 5476 states and 18552 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:11,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:29:11,559 INFO L93 Difference]: Finished difference Result 5955 states and 19895 transitions. [2022-03-03 20:29:11,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-03-03 20:29:11,560 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:29:11,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:29:11,571 INFO L225 Difference]: With dead ends: 5955 [2022-03-03 20:29:11,571 INFO L226 Difference]: Without dead ends: 5900 [2022-03-03 20:29:11,571 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 687 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=287, Invalid=2683, Unknown=0, NotChecked=0, Total=2970 [2022-03-03 20:29:11,571 INFO L933 BasicCegarLoop]: 93 mSDtfsCounter, 269 mSDsluCounter, 1183 mSDsCounter, 0 mSdLazyCounter, 1686 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 949 SdHoareTripleChecker+Invalid, 1742 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:29:11,571 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [269 Valid, 949 Invalid, 1742 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1686 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:29:11,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5900 states. [2022-03-03 20:29:11,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5900 to 5478. [2022-03-03 20:29:11,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5478 states, 5477 states have (on average 3.3881687054957093) internal successors, (18557), 5477 states have internal predecessors, (18557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:11,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5478 states to 5478 states and 18557 transitions. [2022-03-03 20:29:11,638 INFO L78 Accepts]: Start accepts. Automaton has 5478 states and 18557 transitions. Word has length 39 [2022-03-03 20:29:11,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:29:11,638 INFO L470 AbstractCegarLoop]: Abstraction has 5478 states and 18557 transitions. [2022-03-03 20:29:11,638 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:11,639 INFO L276 IsEmpty]: Start isEmpty. Operand 5478 states and 18557 transitions. [2022-03-03 20:29:11,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:29:11,645 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:29:11,645 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:29:11,645 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable449 [2022-03-03 20:29:11,645 INFO L402 AbstractCegarLoop]: === Iteration 451 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:29:11,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:29:11,646 INFO L85 PathProgramCache]: Analyzing trace with hash -1118442008, now seen corresponding path program 451 times [2022-03-03 20:29:11,646 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:29:11,646 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138796133] [2022-03-03 20:29:11,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:29:11,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:29:11,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:29:11,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:29:11,863 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:29:11,863 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138796133] [2022-03-03 20:29:11,863 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138796133] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:29:11,863 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:29:11,863 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:29:11,863 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605537511] [2022-03-03 20:29:11,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:29:11,864 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:29:11,864 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:29:11,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:29:11,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:29:11,864 INFO L87 Difference]: Start difference. First operand 5478 states and 18557 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:12,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:29:12,971 INFO L93 Difference]: Finished difference Result 5931 states and 19829 transitions. [2022-03-03 20:29:12,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-03 20:29:12,971 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:29:12,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:29:12,982 INFO L225 Difference]: With dead ends: 5931 [2022-03-03 20:29:12,982 INFO L226 Difference]: Without dead ends: 5888 [2022-03-03 20:29:12,983 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 580 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=258, Invalid=2394, Unknown=0, NotChecked=0, Total=2652 [2022-03-03 20:29:12,983 INFO L933 BasicCegarLoop]: 90 mSDtfsCounter, 257 mSDsluCounter, 1150 mSDsCounter, 0 mSdLazyCounter, 1656 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 919 SdHoareTripleChecker+Invalid, 1706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 1656 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:29:12,983 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [257 Valid, 919 Invalid, 1706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 1656 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:29:12,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5888 states. [2022-03-03 20:29:13,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5888 to 5484. [2022-03-03 20:29:13,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5484 states, 5483 states have (on average 3.3868320262629945) internal successors, (18570), 5483 states have internal predecessors, (18570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:13,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5484 states to 5484 states and 18570 transitions. [2022-03-03 20:29:13,121 INFO L78 Accepts]: Start accepts. Automaton has 5484 states and 18570 transitions. Word has length 39 [2022-03-03 20:29:13,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:29:13,121 INFO L470 AbstractCegarLoop]: Abstraction has 5484 states and 18570 transitions. [2022-03-03 20:29:13,121 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:13,121 INFO L276 IsEmpty]: Start isEmpty. Operand 5484 states and 18570 transitions. [2022-03-03 20:29:13,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:29:13,128 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:29:13,128 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:29:13,128 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable450 [2022-03-03 20:29:13,128 INFO L402 AbstractCegarLoop]: === Iteration 452 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:29:13,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:29:13,129 INFO L85 PathProgramCache]: Analyzing trace with hash -1389861558, now seen corresponding path program 452 times [2022-03-03 20:29:13,129 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:29:13,129 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933983537] [2022-03-03 20:29:13,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:29:13,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:29:13,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:29:13,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:29:13,345 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:29:13,345 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933983537] [2022-03-03 20:29:13,345 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933983537] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:29:13,345 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:29:13,345 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:29:13,345 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019504372] [2022-03-03 20:29:13,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:29:13,345 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:29:13,345 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:29:13,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:29:13,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:29:13,345 INFO L87 Difference]: Start difference. First operand 5484 states and 18570 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:14,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:29:14,461 INFO L93 Difference]: Finished difference Result 5900 states and 19762 transitions. [2022-03-03 20:29:14,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-03 20:29:14,461 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:29:14,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:29:14,471 INFO L225 Difference]: With dead ends: 5900 [2022-03-03 20:29:14,471 INFO L226 Difference]: Without dead ends: 5849 [2022-03-03 20:29:14,472 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 581 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=251, Invalid=2401, Unknown=0, NotChecked=0, Total=2652 [2022-03-03 20:29:14,472 INFO L933 BasicCegarLoop]: 92 mSDtfsCounter, 245 mSDsluCounter, 1176 mSDsCounter, 0 mSdLazyCounter, 1693 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 936 SdHoareTripleChecker+Invalid, 1744 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 1693 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:29:14,472 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [245 Valid, 936 Invalid, 1744 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 1693 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:29:14,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5849 states. [2022-03-03 20:29:14,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5849 to 5478. [2022-03-03 20:29:14,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5478 states, 5477 states have (on average 3.387803542085083) internal successors, (18555), 5477 states have internal predecessors, (18555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:14,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5478 states to 5478 states and 18555 transitions. [2022-03-03 20:29:14,538 INFO L78 Accepts]: Start accepts. Automaton has 5478 states and 18555 transitions. Word has length 39 [2022-03-03 20:29:14,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:29:14,538 INFO L470 AbstractCegarLoop]: Abstraction has 5478 states and 18555 transitions. [2022-03-03 20:29:14,538 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:14,539 INFO L276 IsEmpty]: Start isEmpty. Operand 5478 states and 18555 transitions. [2022-03-03 20:29:14,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:29:14,545 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:29:14,545 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:29:14,545 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable451 [2022-03-03 20:29:14,546 INFO L402 AbstractCegarLoop]: === Iteration 453 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:29:14,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:29:14,546 INFO L85 PathProgramCache]: Analyzing trace with hash 673140854, now seen corresponding path program 453 times [2022-03-03 20:29:14,546 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:29:14,546 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812306451] [2022-03-03 20:29:14,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:29:14,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:29:14,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:29:14,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:29:14,767 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:29:14,767 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812306451] [2022-03-03 20:29:14,767 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812306451] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:29:14,767 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:29:14,767 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:29:14,767 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410239270] [2022-03-03 20:29:14,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:29:14,767 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:29:14,768 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:29:14,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:29:14,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:29:14,768 INFO L87 Difference]: Start difference. First operand 5478 states and 18555 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:16,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:29:16,636 INFO L93 Difference]: Finished difference Result 7629 states and 25607 transitions. [2022-03-03 20:29:16,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-03-03 20:29:16,636 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:29:16,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:29:16,654 INFO L225 Difference]: With dead ends: 7629 [2022-03-03 20:29:16,654 INFO L226 Difference]: Without dead ends: 7590 [2022-03-03 20:29:16,654 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1475 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=466, Invalid=4790, Unknown=0, NotChecked=0, Total=5256 [2022-03-03 20:29:16,654 INFO L933 BasicCegarLoop]: 190 mSDtfsCounter, 389 mSDsluCounter, 2173 mSDsCounter, 0 mSdLazyCounter, 2841 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 389 SdHoareTripleChecker+Valid, 1948 SdHoareTripleChecker+Invalid, 2931 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 2841 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-03 20:29:16,655 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [389 Valid, 1948 Invalid, 2931 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 2841 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-03 20:29:16,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7590 states. [2022-03-03 20:29:16,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7590 to 5496. [2022-03-03 20:29:16,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5496 states, 5495 states have (on average 3.388898999090082) internal successors, (18622), 5495 states have internal predecessors, (18622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:16,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5496 states to 5496 states and 18622 transitions. [2022-03-03 20:29:16,744 INFO L78 Accepts]: Start accepts. Automaton has 5496 states and 18622 transitions. Word has length 39 [2022-03-03 20:29:16,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:29:16,745 INFO L470 AbstractCegarLoop]: Abstraction has 5496 states and 18622 transitions. [2022-03-03 20:29:16,745 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:16,745 INFO L276 IsEmpty]: Start isEmpty. Operand 5496 states and 18622 transitions. [2022-03-03 20:29:16,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:29:16,753 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:29:16,753 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:29:16,753 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable452 [2022-03-03 20:29:16,753 INFO L402 AbstractCegarLoop]: === Iteration 454 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:29:16,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:29:16,753 INFO L85 PathProgramCache]: Analyzing trace with hash -1084843560, now seen corresponding path program 454 times [2022-03-03 20:29:16,753 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:29:16,753 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227421439] [2022-03-03 20:29:16,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:29:16,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:29:16,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:29:16,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:29:16,897 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:29:16,897 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227421439] [2022-03-03 20:29:16,897 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [227421439] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:29:16,897 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:29:16,897 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:29:16,897 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082634792] [2022-03-03 20:29:16,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:29:16,897 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:29:16,897 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:29:16,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:29:16,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:29:16,897 INFO L87 Difference]: Start difference. First operand 5496 states and 18622 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:18,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:29:18,624 INFO L93 Difference]: Finished difference Result 7617 states and 25563 transitions. [2022-03-03 20:29:18,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-03-03 20:29:18,624 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:29:18,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:29:18,638 INFO L225 Difference]: With dead ends: 7617 [2022-03-03 20:29:18,638 INFO L226 Difference]: Without dead ends: 7562 [2022-03-03 20:29:18,639 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1422 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=447, Invalid=4665, Unknown=0, NotChecked=0, Total=5112 [2022-03-03 20:29:18,639 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 381 mSDsluCounter, 2209 mSDsCounter, 0 mSdLazyCounter, 2915 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 381 SdHoareTripleChecker+Valid, 1990 SdHoareTripleChecker+Invalid, 3001 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 2915 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 20:29:18,639 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [381 Valid, 1990 Invalid, 3001 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 2915 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 20:29:18,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7562 states. [2022-03-03 20:29:18,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7562 to 5488. [2022-03-03 20:29:18,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5488 states, 5487 states have (on average 3.3905595042828502) internal successors, (18604), 5487 states have internal predecessors, (18604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:18,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5488 states to 5488 states and 18604 transitions. [2022-03-03 20:29:18,717 INFO L78 Accepts]: Start accepts. Automaton has 5488 states and 18604 transitions. Word has length 39 [2022-03-03 20:29:18,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:29:18,717 INFO L470 AbstractCegarLoop]: Abstraction has 5488 states and 18604 transitions. [2022-03-03 20:29:18,717 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:18,717 INFO L276 IsEmpty]: Start isEmpty. Operand 5488 states and 18604 transitions. [2022-03-03 20:29:18,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:29:18,724 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:29:18,724 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:29:18,724 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable453 [2022-03-03 20:29:18,724 INFO L402 AbstractCegarLoop]: === Iteration 455 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:29:18,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:29:18,724 INFO L85 PathProgramCache]: Analyzing trace with hash -1488016772, now seen corresponding path program 455 times [2022-03-03 20:29:18,724 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:29:18,724 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349079300] [2022-03-03 20:29:18,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:29:18,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:29:18,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:29:18,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:29:18,941 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:29:18,941 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349079300] [2022-03-03 20:29:18,941 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349079300] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:29:18,941 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:29:18,941 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:29:18,942 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086497557] [2022-03-03 20:29:18,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:29:18,942 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:29:18,942 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:29:18,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:29:18,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:29:18,942 INFO L87 Difference]: Start difference. First operand 5488 states and 18604 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:20,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:29:20,288 INFO L93 Difference]: Finished difference Result 6089 states and 20233 transitions. [2022-03-03 20:29:20,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-03-03 20:29:20,288 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:29:20,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:29:20,299 INFO L225 Difference]: With dead ends: 6089 [2022-03-03 20:29:20,300 INFO L226 Difference]: Without dead ends: 6034 [2022-03-03 20:29:20,300 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 868 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=334, Invalid=3206, Unknown=0, NotChecked=0, Total=3540 [2022-03-03 20:29:20,300 INFO L933 BasicCegarLoop]: 93 mSDtfsCounter, 293 mSDsluCounter, 1225 mSDsCounter, 0 mSdLazyCounter, 1781 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 964 SdHoareTripleChecker+Invalid, 1862 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 1781 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:29:20,300 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [293 Valid, 964 Invalid, 1862 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 1781 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:29:20,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6034 states. [2022-03-03 20:29:20,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6034 to 5493. [2022-03-03 20:29:20,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5493 states, 5492 states have (on average 3.3896576839038604) internal successors, (18616), 5492 states have internal predecessors, (18616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:20,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5493 states to 5493 states and 18616 transitions. [2022-03-03 20:29:20,369 INFO L78 Accepts]: Start accepts. Automaton has 5493 states and 18616 transitions. Word has length 39 [2022-03-03 20:29:20,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:29:20,370 INFO L470 AbstractCegarLoop]: Abstraction has 5493 states and 18616 transitions. [2022-03-03 20:29:20,370 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:20,370 INFO L276 IsEmpty]: Start isEmpty. Operand 5493 states and 18616 transitions. [2022-03-03 20:29:20,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:29:20,377 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:29:20,377 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:29:20,377 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable454 [2022-03-03 20:29:20,377 INFO L402 AbstractCegarLoop]: === Iteration 456 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:29:20,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:29:20,377 INFO L85 PathProgramCache]: Analyzing trace with hash -315364550, now seen corresponding path program 456 times [2022-03-03 20:29:20,377 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:29:20,377 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407023767] [2022-03-03 20:29:20,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:29:20,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:29:20,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:29:20,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:29:20,593 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:29:20,593 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407023767] [2022-03-03 20:29:20,594 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407023767] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:29:20,594 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:29:20,594 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:29:20,594 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708670824] [2022-03-03 20:29:20,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:29:20,594 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:29:20,594 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:29:20,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:29:20,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:29:20,594 INFO L87 Difference]: Start difference. First operand 5493 states and 18616 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:21,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:29:21,762 INFO L93 Difference]: Finished difference Result 6076 states and 20192 transitions. [2022-03-03 20:29:21,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-03-03 20:29:21,762 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:29:21,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:29:21,773 INFO L225 Difference]: With dead ends: 6076 [2022-03-03 20:29:21,773 INFO L226 Difference]: Without dead ends: 6030 [2022-03-03 20:29:21,773 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 681 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=283, Invalid=2687, Unknown=0, NotChecked=0, Total=2970 [2022-03-03 20:29:21,774 INFO L933 BasicCegarLoop]: 91 mSDtfsCounter, 290 mSDsluCounter, 1227 mSDsCounter, 0 mSdLazyCounter, 1713 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 961 SdHoareTripleChecker+Invalid, 1774 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 1713 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:29:21,774 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [290 Valid, 961 Invalid, 1774 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 1713 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:29:21,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6030 states. [2022-03-03 20:29:21,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6030 to 5499. [2022-03-03 20:29:21,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5499 states, 5498 states have (on average 3.3886867951982538) internal successors, (18631), 5498 states have internal predecessors, (18631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:21,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5499 states to 5499 states and 18631 transitions. [2022-03-03 20:29:21,843 INFO L78 Accepts]: Start accepts. Automaton has 5499 states and 18631 transitions. Word has length 39 [2022-03-03 20:29:21,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:29:21,843 INFO L470 AbstractCegarLoop]: Abstraction has 5499 states and 18631 transitions. [2022-03-03 20:29:21,843 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:21,843 INFO L276 IsEmpty]: Start isEmpty. Operand 5499 states and 18631 transitions. [2022-03-03 20:29:21,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:29:21,850 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:29:21,850 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:29:21,850 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable455 [2022-03-03 20:29:21,850 INFO L402 AbstractCegarLoop]: === Iteration 457 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:29:21,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:29:21,850 INFO L85 PathProgramCache]: Analyzing trace with hash -562830712, now seen corresponding path program 457 times [2022-03-03 20:29:21,850 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:29:21,850 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524331095] [2022-03-03 20:29:21,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:29:21,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:29:21,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:29:22,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:29:22,006 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:29:22,006 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524331095] [2022-03-03 20:29:22,006 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524331095] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:29:22,006 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:29:22,006 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:29:22,006 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861574800] [2022-03-03 20:29:22,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:29:22,006 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:29:22,006 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:29:22,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:29:22,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:29:22,006 INFO L87 Difference]: Start difference. First operand 5499 states and 18631 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:23,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:29:23,206 INFO L93 Difference]: Finished difference Result 6036 states and 20099 transitions. [2022-03-03 20:29:23,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-03-03 20:29:23,206 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:29:23,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:29:23,217 INFO L225 Difference]: With dead ends: 6036 [2022-03-03 20:29:23,217 INFO L226 Difference]: Without dead ends: 5991 [2022-03-03 20:29:23,217 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 642 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=278, Invalid=2584, Unknown=0, NotChecked=0, Total=2862 [2022-03-03 20:29:23,217 INFO L933 BasicCegarLoop]: 88 mSDtfsCounter, 272 mSDsluCounter, 1193 mSDsCounter, 0 mSdLazyCounter, 1664 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 931 SdHoareTripleChecker+Invalid, 1724 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 1664 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:29:23,218 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [272 Valid, 931 Invalid, 1724 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 1664 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:29:23,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5991 states. [2022-03-03 20:29:23,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5991 to 5497. [2022-03-03 20:29:23,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5497 states, 5496 states have (on average 3.3891921397379914) internal successors, (18627), 5496 states have internal predecessors, (18627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:23,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5497 states to 5497 states and 18627 transitions. [2022-03-03 20:29:23,286 INFO L78 Accepts]: Start accepts. Automaton has 5497 states and 18627 transitions. Word has length 39 [2022-03-03 20:29:23,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:29:23,286 INFO L470 AbstractCegarLoop]: Abstraction has 5497 states and 18627 transitions. [2022-03-03 20:29:23,286 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:23,286 INFO L276 IsEmpty]: Start isEmpty. Operand 5497 states and 18627 transitions. [2022-03-03 20:29:23,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:29:23,293 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:29:23,293 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:29:23,293 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable456 [2022-03-03 20:29:23,293 INFO L402 AbstractCegarLoop]: === Iteration 458 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:29:23,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:29:23,293 INFO L85 PathProgramCache]: Analyzing trace with hash -383109430, now seen corresponding path program 458 times [2022-03-03 20:29:23,293 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:29:23,293 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944880082] [2022-03-03 20:29:23,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:29:23,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:29:23,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:29:23,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:29:23,509 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:29:23,509 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944880082] [2022-03-03 20:29:23,509 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944880082] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:29:23,509 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:29:23,509 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:29:23,509 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670038399] [2022-03-03 20:29:23,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:29:23,509 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:29:23,510 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:29:23,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:29:23,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:29:23,510 INFO L87 Difference]: Start difference. First operand 5497 states and 18627 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:24,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:29:24,770 INFO L93 Difference]: Finished difference Result 6095 states and 20249 transitions. [2022-03-03 20:29:24,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-03-03 20:29:24,770 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:29:24,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:29:24,781 INFO L225 Difference]: With dead ends: 6095 [2022-03-03 20:29:24,781 INFO L226 Difference]: Without dead ends: 6052 [2022-03-03 20:29:24,782 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 758 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=297, Invalid=2895, Unknown=0, NotChecked=0, Total=3192 [2022-03-03 20:29:24,782 INFO L933 BasicCegarLoop]: 93 mSDtfsCounter, 297 mSDsluCounter, 1221 mSDsCounter, 0 mSdLazyCounter, 1786 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 958 SdHoareTripleChecker+Invalid, 1854 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 1786 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:29:24,782 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [297 Valid, 958 Invalid, 1854 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 1786 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:29:24,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6052 states. [2022-03-03 20:29:24,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6052 to 5506. [2022-03-03 20:29:24,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5506 states, 5505 states have (on average 3.3874659400544957) internal successors, (18648), 5505 states have internal predecessors, (18648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:24,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5506 states to 5506 states and 18648 transitions. [2022-03-03 20:29:24,850 INFO L78 Accepts]: Start accepts. Automaton has 5506 states and 18648 transitions. Word has length 39 [2022-03-03 20:29:24,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:29:24,850 INFO L470 AbstractCegarLoop]: Abstraction has 5506 states and 18648 transitions. [2022-03-03 20:29:24,850 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:24,850 INFO L276 IsEmpty]: Start isEmpty. Operand 5506 states and 18648 transitions. [2022-03-03 20:29:24,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:29:24,857 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:29:24,857 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:29:24,857 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable457 [2022-03-03 20:29:24,857 INFO L402 AbstractCegarLoop]: === Iteration 459 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:29:24,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:29:24,857 INFO L85 PathProgramCache]: Analyzing trace with hash 1366997706, now seen corresponding path program 459 times [2022-03-03 20:29:24,857 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:29:24,857 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650002105] [2022-03-03 20:29:24,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:29:24,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:29:24,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:29:25,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:29:25,077 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:29:25,077 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650002105] [2022-03-03 20:29:25,077 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650002105] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:29:25,077 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:29:25,077 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:29:25,077 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475642950] [2022-03-03 20:29:25,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:29:25,078 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:29:25,078 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:29:25,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:29:25,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:29:25,078 INFO L87 Difference]: Start difference. First operand 5506 states and 18648 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:26,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:29:26,288 INFO L93 Difference]: Finished difference Result 6062 states and 20171 transitions. [2022-03-03 20:29:26,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-03-03 20:29:26,288 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:29:26,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:29:26,299 INFO L225 Difference]: With dead ends: 6062 [2022-03-03 20:29:26,299 INFO L226 Difference]: Without dead ends: 6011 [2022-03-03 20:29:26,299 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 684 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=274, Invalid=2696, Unknown=0, NotChecked=0, Total=2970 [2022-03-03 20:29:26,299 INFO L933 BasicCegarLoop]: 92 mSDtfsCounter, 280 mSDsluCounter, 1209 mSDsCounter, 0 mSdLazyCounter, 1751 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 945 SdHoareTripleChecker+Invalid, 1815 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 1751 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:29:26,299 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [280 Valid, 945 Invalid, 1815 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 1751 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:29:26,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6011 states. [2022-03-03 20:29:26,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6011 to 5506. [2022-03-03 20:29:26,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5506 states, 5505 states have (on average 3.3869209809264307) internal successors, (18645), 5505 states have internal predecessors, (18645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:26,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5506 states to 5506 states and 18645 transitions. [2022-03-03 20:29:26,367 INFO L78 Accepts]: Start accepts. Automaton has 5506 states and 18645 transitions. Word has length 39 [2022-03-03 20:29:26,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:29:26,367 INFO L470 AbstractCegarLoop]: Abstraction has 5506 states and 18645 transitions. [2022-03-03 20:29:26,368 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:26,368 INFO L276 IsEmpty]: Start isEmpty. Operand 5506 states and 18645 transitions. [2022-03-03 20:29:26,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:29:26,374 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:29:26,374 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:29:26,374 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable458 [2022-03-03 20:29:26,375 INFO L402 AbstractCegarLoop]: === Iteration 460 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:29:26,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:29:26,375 INFO L85 PathProgramCache]: Analyzing trace with hash 1984216108, now seen corresponding path program 460 times [2022-03-03 20:29:26,375 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:29:26,375 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311008169] [2022-03-03 20:29:26,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:29:26,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:29:26,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:29:26,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:29:26,591 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:29:26,592 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311008169] [2022-03-03 20:29:26,592 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311008169] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:29:26,592 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:29:26,592 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:29:26,592 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690010727] [2022-03-03 20:29:26,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:29:26,592 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:29:26,592 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:29:26,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:29:26,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:29:26,592 INFO L87 Difference]: Start difference. First operand 5506 states and 18645 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:27,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:29:27,769 INFO L93 Difference]: Finished difference Result 6079 states and 20196 transitions. [2022-03-03 20:29:27,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-03-03 20:29:27,769 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:29:27,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:29:27,780 INFO L225 Difference]: With dead ends: 6079 [2022-03-03 20:29:27,780 INFO L226 Difference]: Without dead ends: 6033 [2022-03-03 20:29:27,780 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 613 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=257, Invalid=2499, Unknown=0, NotChecked=0, Total=2756 [2022-03-03 20:29:27,781 INFO L933 BasicCegarLoop]: 94 mSDtfsCounter, 277 mSDsluCounter, 1228 mSDsCounter, 0 mSdLazyCounter, 1755 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 968 SdHoareTripleChecker+Invalid, 1812 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 1755 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:29:27,781 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [277 Valid, 968 Invalid, 1812 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 1755 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:29:27,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6033 states. [2022-03-03 20:29:27,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6033 to 5513. [2022-03-03 20:29:27,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5513 states, 5512 states have (on average 3.385341074020319) internal successors, (18660), 5512 states have internal predecessors, (18660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:27,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5513 states to 5513 states and 18660 transitions. [2022-03-03 20:29:27,849 INFO L78 Accepts]: Start accepts. Automaton has 5513 states and 18660 transitions. Word has length 39 [2022-03-03 20:29:27,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:29:27,849 INFO L470 AbstractCegarLoop]: Abstraction has 5513 states and 18660 transitions. [2022-03-03 20:29:27,849 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:27,849 INFO L276 IsEmpty]: Start isEmpty. Operand 5513 states and 18660 transitions. [2022-03-03 20:29:27,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:29:27,856 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:29:27,856 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:29:27,856 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable459 [2022-03-03 20:29:27,856 INFO L402 AbstractCegarLoop]: === Iteration 461 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:29:27,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:29:27,856 INFO L85 PathProgramCache]: Analyzing trace with hash 549148618, now seen corresponding path program 461 times [2022-03-03 20:29:27,856 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:29:27,856 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420357384] [2022-03-03 20:29:27,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:29:27,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:29:27,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:29:28,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:29:28,076 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:29:28,076 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420357384] [2022-03-03 20:29:28,077 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420357384] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:29:28,077 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:29:28,077 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:29:28,077 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38193467] [2022-03-03 20:29:28,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:29:28,077 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:29:28,077 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:29:28,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:29:28,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:29:28,077 INFO L87 Difference]: Start difference. First operand 5513 states and 18660 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:29,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:29:29,259 INFO L93 Difference]: Finished difference Result 6048 states and 20124 transitions. [2022-03-03 20:29:29,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-03-03 20:29:29,259 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:29:29,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:29:29,270 INFO L225 Difference]: With dead ends: 6048 [2022-03-03 20:29:29,270 INFO L226 Difference]: Without dead ends: 5993 [2022-03-03 20:29:29,270 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 649 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=264, Invalid=2598, Unknown=0, NotChecked=0, Total=2862 [2022-03-03 20:29:29,270 INFO L933 BasicCegarLoop]: 91 mSDtfsCounter, 286 mSDsluCounter, 1182 mSDsCounter, 0 mSdLazyCounter, 1728 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 929 SdHoareTripleChecker+Invalid, 1786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 1728 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:29:29,270 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [286 Valid, 929 Invalid, 1786 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 1728 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:29:29,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5993 states. [2022-03-03 20:29:29,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5993 to 5510. [2022-03-03 20:29:29,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5510 states, 5509 states have (on average 3.3860954801234344) internal successors, (18654), 5509 states have internal predecessors, (18654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:29,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5510 states to 5510 states and 18654 transitions. [2022-03-03 20:29:29,338 INFO L78 Accepts]: Start accepts. Automaton has 5510 states and 18654 transitions. Word has length 39 [2022-03-03 20:29:29,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:29:29,338 INFO L470 AbstractCegarLoop]: Abstraction has 5510 states and 18654 transitions. [2022-03-03 20:29:29,338 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:29,338 INFO L276 IsEmpty]: Start isEmpty. Operand 5510 states and 18654 transitions. [2022-03-03 20:29:29,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:29:29,345 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:29:29,345 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:29:29,345 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable460 [2022-03-03 20:29:29,345 INFO L402 AbstractCegarLoop]: === Iteration 462 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:29:29,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:29:29,345 INFO L85 PathProgramCache]: Analyzing trace with hash -733554500, now seen corresponding path program 462 times [2022-03-03 20:29:29,345 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:29:29,345 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55181616] [2022-03-03 20:29:29,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:29:29,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:29:29,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:29:29,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:29:29,561 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:29:29,561 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55181616] [2022-03-03 20:29:29,561 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55181616] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:29:29,561 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:29:29,561 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:29:29,561 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007669244] [2022-03-03 20:29:29,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:29:29,561 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:29:29,561 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:29:29,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:29:29,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:29:29,562 INFO L87 Difference]: Start difference. First operand 5510 states and 18654 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:30,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:29:30,733 INFO L93 Difference]: Finished difference Result 6032 states and 20084 transitions. [2022-03-03 20:29:30,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-03-03 20:29:30,733 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:29:30,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:29:30,744 INFO L225 Difference]: With dead ends: 6032 [2022-03-03 20:29:30,744 INFO L226 Difference]: Without dead ends: 5981 [2022-03-03 20:29:30,745 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 648 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=266, Invalid=2596, Unknown=0, NotChecked=0, Total=2862 [2022-03-03 20:29:30,745 INFO L933 BasicCegarLoop]: 92 mSDtfsCounter, 276 mSDsluCounter, 1194 mSDsCounter, 0 mSdLazyCounter, 1751 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 938 SdHoareTripleChecker+Invalid, 1810 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 1751 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:29:30,745 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [276 Valid, 938 Invalid, 1810 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 1751 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:29:30,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5981 states. [2022-03-03 20:29:30,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5981 to 5504. [2022-03-03 20:29:30,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5504 states, 5503 states have (on average 3.3870616027621296) internal successors, (18639), 5503 states have internal predecessors, (18639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:30,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5504 states to 5504 states and 18639 transitions. [2022-03-03 20:29:30,814 INFO L78 Accepts]: Start accepts. Automaton has 5504 states and 18639 transitions. Word has length 39 [2022-03-03 20:29:30,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:29:30,814 INFO L470 AbstractCegarLoop]: Abstraction has 5504 states and 18639 transitions. [2022-03-03 20:29:30,814 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:30,814 INFO L276 IsEmpty]: Start isEmpty. Operand 5504 states and 18639 transitions. [2022-03-03 20:29:30,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:29:30,821 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:29:30,821 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:29:30,821 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable461 [2022-03-03 20:29:30,821 INFO L402 AbstractCegarLoop]: === Iteration 463 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:29:30,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:29:30,821 INFO L85 PathProgramCache]: Analyzing trace with hash -359221992, now seen corresponding path program 463 times [2022-03-03 20:29:30,821 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:29:30,821 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326526422] [2022-03-03 20:29:30,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:29:30,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:29:30,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:29:31,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:29:31,040 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:29:31,040 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326526422] [2022-03-03 20:29:31,040 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326526422] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:29:31,040 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:29:31,040 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:29:31,040 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465276433] [2022-03-03 20:29:31,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:29:31,040 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:29:31,040 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:29:31,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:29:31,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:29:31,040 INFO L87 Difference]: Start difference. First operand 5504 states and 18639 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:33,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:29:33,670 INFO L93 Difference]: Finished difference Result 9334 states and 31252 transitions. [2022-03-03 20:29:33,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2022-03-03 20:29:33,670 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:29:33,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:29:33,688 INFO L225 Difference]: With dead ends: 9334 [2022-03-03 20:29:33,688 INFO L226 Difference]: Without dead ends: 9295 [2022-03-03 20:29:33,689 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2864 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=728, Invalid=8202, Unknown=0, NotChecked=0, Total=8930 [2022-03-03 20:29:33,690 INFO L933 BasicCegarLoop]: 225 mSDtfsCounter, 501 mSDsluCounter, 2818 mSDsCounter, 0 mSdLazyCounter, 3496 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 501 SdHoareTripleChecker+Valid, 2591 SdHoareTripleChecker+Invalid, 3629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 3496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-03-03 20:29:33,690 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [501 Valid, 2591 Invalid, 3629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 3496 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-03-03 20:29:33,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9295 states. [2022-03-03 20:29:33,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9295 to 5527. [2022-03-03 20:29:33,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5527 states, 5526 states have (on average 3.388888888888889) internal successors, (18727), 5526 states have internal predecessors, (18727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:33,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5527 states to 5527 states and 18727 transitions. [2022-03-03 20:29:33,779 INFO L78 Accepts]: Start accepts. Automaton has 5527 states and 18727 transitions. Word has length 39 [2022-03-03 20:29:33,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:29:33,779 INFO L470 AbstractCegarLoop]: Abstraction has 5527 states and 18727 transitions. [2022-03-03 20:29:33,779 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:33,779 INFO L276 IsEmpty]: Start isEmpty. Operand 5527 states and 18727 transitions. [2022-03-03 20:29:33,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:29:33,786 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:29:33,786 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:29:33,786 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable462 [2022-03-03 20:29:33,786 INFO L402 AbstractCegarLoop]: === Iteration 464 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:29:33,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:29:33,786 INFO L85 PathProgramCache]: Analyzing trace with hash -2117206406, now seen corresponding path program 464 times [2022-03-03 20:29:33,786 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:29:33,786 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687282812] [2022-03-03 20:29:33,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:29:33,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:29:33,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:29:33,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:29:33,971 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:29:33,971 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687282812] [2022-03-03 20:29:33,971 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687282812] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:29:33,971 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:29:33,972 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:29:33,972 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425263213] [2022-03-03 20:29:33,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:29:33,972 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:29:33,972 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:29:33,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:29:33,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:29:33,972 INFO L87 Difference]: Start difference. First operand 5527 states and 18727 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:36,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:29:36,541 INFO L93 Difference]: Finished difference Result 9304 states and 31151 transitions. [2022-03-03 20:29:36,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2022-03-03 20:29:36,542 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:29:36,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:29:36,559 INFO L225 Difference]: With dead ends: 9304 [2022-03-03 20:29:36,559 INFO L226 Difference]: Without dead ends: 9253 [2022-03-03 20:29:36,560 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2786 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=706, Invalid=8036, Unknown=0, NotChecked=0, Total=8742 [2022-03-03 20:29:36,560 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 479 mSDsluCounter, 2869 mSDsCounter, 0 mSdLazyCounter, 3609 mSolverCounterSat, 129 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 479 SdHoareTripleChecker+Valid, 2646 SdHoareTripleChecker+Invalid, 3738 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 129 IncrementalHoareTripleChecker+Valid, 3609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-03-03 20:29:36,560 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [479 Valid, 2646 Invalid, 3738 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [129 Valid, 3609 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-03-03 20:29:36,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9253 states. [2022-03-03 20:29:36,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9253 to 5523. [2022-03-03 20:29:36,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5523 states, 5522 states have (on average 3.3893516841724014) internal successors, (18716), 5522 states have internal predecessors, (18716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:36,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5523 states to 5523 states and 18716 transitions. [2022-03-03 20:29:36,649 INFO L78 Accepts]: Start accepts. Automaton has 5523 states and 18716 transitions. Word has length 39 [2022-03-03 20:29:36,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:29:36,649 INFO L470 AbstractCegarLoop]: Abstraction has 5523 states and 18716 transitions. [2022-03-03 20:29:36,649 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:36,649 INFO L276 IsEmpty]: Start isEmpty. Operand 5523 states and 18716 transitions. [2022-03-03 20:29:36,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:29:36,656 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:29:36,656 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:29:36,656 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable463 [2022-03-03 20:29:36,656 INFO L402 AbstractCegarLoop]: === Iteration 465 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:29:36,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:29:36,656 INFO L85 PathProgramCache]: Analyzing trace with hash 7177126, now seen corresponding path program 465 times [2022-03-03 20:29:36,656 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:29:36,656 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157676997] [2022-03-03 20:29:36,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:29:36,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:29:36,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:29:36,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:29:36,873 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:29:36,873 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157676997] [2022-03-03 20:29:36,873 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157676997] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:29:36,873 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:29:36,873 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:29:36,873 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272093388] [2022-03-03 20:29:36,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:29:36,873 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:29:36,873 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:29:36,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:29:36,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:29:36,873 INFO L87 Difference]: Start difference. First operand 5523 states and 18716 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:37,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:29:37,877 INFO L93 Difference]: Finished difference Result 5978 states and 19989 transitions. [2022-03-03 20:29:37,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-03 20:29:37,878 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:29:37,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:29:37,888 INFO L225 Difference]: With dead ends: 5978 [2022-03-03 20:29:37,889 INFO L226 Difference]: Without dead ends: 5935 [2022-03-03 20:29:37,889 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 576 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=253, Invalid=2399, Unknown=0, NotChecked=0, Total=2652 [2022-03-03 20:29:37,889 INFO L933 BasicCegarLoop]: 91 mSDtfsCounter, 262 mSDsluCounter, 1190 mSDsCounter, 0 mSdLazyCounter, 1661 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 958 SdHoareTripleChecker+Invalid, 1719 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 1661 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:29:37,889 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [262 Valid, 958 Invalid, 1719 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 1661 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:29:37,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5935 states. [2022-03-03 20:29:37,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5935 to 5519. [2022-03-03 20:29:37,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5519 states, 5518 states have (on average 3.389996375498369) internal successors, (18706), 5518 states have internal predecessors, (18706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:38,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5519 states to 5519 states and 18706 transitions. [2022-03-03 20:29:38,001 INFO L78 Accepts]: Start accepts. Automaton has 5519 states and 18706 transitions. Word has length 39 [2022-03-03 20:29:38,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:29:38,001 INFO L470 AbstractCegarLoop]: Abstraction has 5519 states and 18706 transitions. [2022-03-03 20:29:38,001 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:38,001 INFO L276 IsEmpty]: Start isEmpty. Operand 5519 states and 18706 transitions. [2022-03-03 20:29:38,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:29:38,008 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:29:38,008 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:29:38,008 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable464 [2022-03-03 20:29:38,008 INFO L402 AbstractCegarLoop]: === Iteration 466 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:29:38,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:29:38,008 INFO L85 PathProgramCache]: Analyzing trace with hash 1843934616, now seen corresponding path program 466 times [2022-03-03 20:29:38,008 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:29:38,008 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163407416] [2022-03-03 20:29:38,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:29:38,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:29:38,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:29:38,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:29:38,231 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:29:38,231 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163407416] [2022-03-03 20:29:38,231 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163407416] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:29:38,231 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:29:38,231 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:29:38,231 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796042231] [2022-03-03 20:29:38,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:29:38,232 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:29:38,232 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:29:38,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:29:38,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:29:38,232 INFO L87 Difference]: Start difference. First operand 5519 states and 18706 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:39,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:29:39,253 INFO L93 Difference]: Finished difference Result 5986 states and 20009 transitions. [2022-03-03 20:29:39,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-03 20:29:39,254 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:29:39,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:29:39,264 INFO L225 Difference]: With dead ends: 5986 [2022-03-03 20:29:39,264 INFO L226 Difference]: Without dead ends: 5925 [2022-03-03 20:29:39,265 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 612 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=256, Invalid=2500, Unknown=0, NotChecked=0, Total=2756 [2022-03-03 20:29:39,265 INFO L933 BasicCegarLoop]: 94 mSDtfsCounter, 260 mSDsluCounter, 1227 mSDsCounter, 0 mSdLazyCounter, 1749 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 964 SdHoareTripleChecker+Invalid, 1803 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 1749 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:29:39,265 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [260 Valid, 964 Invalid, 1803 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 1749 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:29:39,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5925 states. [2022-03-03 20:29:39,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5925 to 5507. [2022-03-03 20:29:39,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5507 states, 5506 states have (on average 3.3928441699963674) internal successors, (18681), 5506 states have internal predecessors, (18681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:39,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5507 states to 5507 states and 18681 transitions. [2022-03-03 20:29:39,332 INFO L78 Accepts]: Start accepts. Automaton has 5507 states and 18681 transitions. Word has length 39 [2022-03-03 20:29:39,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:29:39,332 INFO L470 AbstractCegarLoop]: Abstraction has 5507 states and 18681 transitions. [2022-03-03 20:29:39,332 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:39,332 INFO L276 IsEmpty]: Start isEmpty. Operand 5507 states and 18681 transitions. [2022-03-03 20:29:39,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:29:39,339 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:29:39,339 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:29:39,339 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable465 [2022-03-03 20:29:39,339 INFO L402 AbstractCegarLoop]: === Iteration 467 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:29:39,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:29:39,339 INFO L85 PathProgramCache]: Analyzing trace with hash 1150969480, now seen corresponding path program 467 times [2022-03-03 20:29:39,339 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:29:39,339 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036232000] [2022-03-03 20:29:39,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:29:39,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:29:39,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:29:39,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:29:39,504 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:29:39,504 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036232000] [2022-03-03 20:29:39,504 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036232000] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:29:39,504 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:29:39,505 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:29:39,505 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810626180] [2022-03-03 20:29:39,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:29:39,505 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:29:39,505 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:29:39,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:29:39,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:29:39,505 INFO L87 Difference]: Start difference. First operand 5507 states and 18681 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:40,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:29:40,506 INFO L93 Difference]: Finished difference Result 5933 states and 19890 transitions. [2022-03-03 20:29:40,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-03-03 20:29:40,507 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:29:40,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:29:40,517 INFO L225 Difference]: With dead ends: 5933 [2022-03-03 20:29:40,517 INFO L226 Difference]: Without dead ends: 5870 [2022-03-03 20:29:40,518 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 479 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=225, Invalid=2127, Unknown=0, NotChecked=0, Total=2352 [2022-03-03 20:29:40,518 INFO L933 BasicCegarLoop]: 102 mSDtfsCounter, 236 mSDsluCounter, 1233 mSDsCounter, 0 mSdLazyCounter, 1666 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 1020 SdHoareTripleChecker+Invalid, 1713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 1666 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:29:40,518 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [236 Valid, 1020 Invalid, 1713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 1666 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:29:40,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5870 states. [2022-03-03 20:29:40,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5870 to 5595. [2022-03-03 20:29:40,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5595 states, 5594 states have (on average 3.3841616017161242) internal successors, (18931), 5594 states have internal predecessors, (18931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:40,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5595 states to 5595 states and 18931 transitions. [2022-03-03 20:29:40,632 INFO L78 Accepts]: Start accepts. Automaton has 5595 states and 18931 transitions. Word has length 39 [2022-03-03 20:29:40,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:29:40,632 INFO L470 AbstractCegarLoop]: Abstraction has 5595 states and 18931 transitions. [2022-03-03 20:29:40,632 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:40,632 INFO L276 IsEmpty]: Start isEmpty. Operand 5595 states and 18931 transitions. [2022-03-03 20:29:40,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:29:40,639 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:29:40,639 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:29:40,639 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable466 [2022-03-03 20:29:40,639 INFO L402 AbstractCegarLoop]: === Iteration 468 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:29:40,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:29:40,639 INFO L85 PathProgramCache]: Analyzing trace with hash 621069032, now seen corresponding path program 468 times [2022-03-03 20:29:40,639 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:29:40,639 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476232292] [2022-03-03 20:29:40,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:29:40,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:29:40,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:29:40,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:29:40,840 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:29:40,840 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476232292] [2022-03-03 20:29:40,840 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476232292] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:29:40,840 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:29:40,840 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:29:40,840 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278070945] [2022-03-03 20:29:40,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:29:40,841 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:29:40,841 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:29:40,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:29:40,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:29:40,841 INFO L87 Difference]: Start difference. First operand 5595 states and 18931 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:41,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:29:41,872 INFO L93 Difference]: Finished difference Result 5888 states and 19784 transitions. [2022-03-03 20:29:41,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 20:29:41,872 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:29:41,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:29:41,883 INFO L225 Difference]: With dead ends: 5888 [2022-03-03 20:29:41,883 INFO L226 Difference]: Without dead ends: 5765 [2022-03-03 20:29:41,883 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 420 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=207, Invalid=1955, Unknown=0, NotChecked=0, Total=2162 [2022-03-03 20:29:41,883 INFO L933 BasicCegarLoop]: 106 mSDtfsCounter, 219 mSDsluCounter, 1246 mSDsCounter, 0 mSdLazyCounter, 1652 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 1056 SdHoareTripleChecker+Invalid, 1692 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1652 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:29:41,883 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [219 Valid, 1056 Invalid, 1692 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1652 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:29:41,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5765 states. [2022-03-03 20:29:41,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5765 to 5563. [2022-03-03 20:29:41,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5563 states, 5562 states have (on average 3.383495145631068) internal successors, (18819), 5562 states have internal predecessors, (18819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:41,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5563 states to 5563 states and 18819 transitions. [2022-03-03 20:29:41,951 INFO L78 Accepts]: Start accepts. Automaton has 5563 states and 18819 transitions. Word has length 39 [2022-03-03 20:29:41,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:29:41,951 INFO L470 AbstractCegarLoop]: Abstraction has 5563 states and 18819 transitions. [2022-03-03 20:29:41,951 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:41,951 INFO L276 IsEmpty]: Start isEmpty. Operand 5563 states and 18819 transitions. [2022-03-03 20:29:41,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:29:41,958 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:29:41,958 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:29:41,958 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable467 [2022-03-03 20:29:41,958 INFO L402 AbstractCegarLoop]: === Iteration 469 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:29:41,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:29:41,958 INFO L85 PathProgramCache]: Analyzing trace with hash 118606634, now seen corresponding path program 469 times [2022-03-03 20:29:41,958 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:29:41,958 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746244884] [2022-03-03 20:29:41,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:29:41,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:29:41,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:29:42,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:29:42,145 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:29:42,145 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746244884] [2022-03-03 20:29:42,145 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746244884] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:29:42,145 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:29:42,145 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:29:42,145 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399038450] [2022-03-03 20:29:42,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:29:42,146 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:29:42,146 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:29:42,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:29:42,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:29:42,146 INFO L87 Difference]: Start difference. First operand 5563 states and 18819 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:43,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:29:43,063 INFO L93 Difference]: Finished difference Result 5872 states and 19734 transitions. [2022-03-03 20:29:43,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-03-03 20:29:43,063 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:29:43,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:29:43,074 INFO L225 Difference]: With dead ends: 5872 [2022-03-03 20:29:43,074 INFO L226 Difference]: Without dead ends: 5809 [2022-03-03 20:29:43,074 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 482 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=231, Invalid=2121, Unknown=0, NotChecked=0, Total=2352 [2022-03-03 20:29:43,074 INFO L933 BasicCegarLoop]: 96 mSDtfsCounter, 233 mSDsluCounter, 1162 mSDsCounter, 0 mSdLazyCounter, 1614 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 961 SdHoareTripleChecker+Invalid, 1659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1614 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:29:43,074 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [233 Valid, 961 Invalid, 1659 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 1614 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:29:43,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5809 states. [2022-03-03 20:29:43,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5809 to 5563. [2022-03-03 20:29:43,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5563 states, 5562 states have (on average 3.3827759798633585) internal successors, (18815), 5562 states have internal predecessors, (18815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:43,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5563 states to 5563 states and 18815 transitions. [2022-03-03 20:29:43,145 INFO L78 Accepts]: Start accepts. Automaton has 5563 states and 18815 transitions. Word has length 39 [2022-03-03 20:29:43,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:29:43,145 INFO L470 AbstractCegarLoop]: Abstraction has 5563 states and 18815 transitions. [2022-03-03 20:29:43,145 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:43,145 INFO L276 IsEmpty]: Start isEmpty. Operand 5563 states and 18815 transitions. [2022-03-03 20:29:43,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:29:43,201 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:29:43,201 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:29:43,201 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable468 [2022-03-03 20:29:43,201 INFO L402 AbstractCegarLoop]: === Iteration 470 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:29:43,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:29:43,201 INFO L85 PathProgramCache]: Analyzing trace with hash -126885464, now seen corresponding path program 470 times [2022-03-03 20:29:43,201 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:29:43,202 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328198204] [2022-03-03 20:29:43,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:29:43,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:29:43,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:29:43,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:29:43,343 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:29:43,343 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328198204] [2022-03-03 20:29:43,343 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328198204] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:29:43,343 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:29:43,343 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:29:43,343 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916256149] [2022-03-03 20:29:43,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:29:43,343 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:29:43,343 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:29:43,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:29:43,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:29:43,343 INFO L87 Difference]: Start difference. First operand 5563 states and 18815 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:44,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:29:44,158 INFO L93 Difference]: Finished difference Result 5889 states and 19760 transitions. [2022-03-03 20:29:44,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-03-03 20:29:44,158 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:29:44,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:29:44,169 INFO L225 Difference]: With dead ends: 5889 [2022-03-03 20:29:44,169 INFO L226 Difference]: Without dead ends: 5846 [2022-03-03 20:29:44,169 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 424 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=206, Invalid=1956, Unknown=0, NotChecked=0, Total=2162 [2022-03-03 20:29:44,169 INFO L933 BasicCegarLoop]: 93 mSDtfsCounter, 242 mSDsluCounter, 1168 mSDsCounter, 0 mSdLazyCounter, 1638 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 937 SdHoareTripleChecker+Invalid, 1676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 20:29:44,169 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [242 Valid, 937 Invalid, 1676 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1638 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 20:29:44,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5846 states. [2022-03-03 20:29:44,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5846 to 5569. [2022-03-03 20:29:44,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5569 states, 5568 states have (on average 3.3814655172413794) internal successors, (18828), 5568 states have internal predecessors, (18828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:44,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5569 states to 5569 states and 18828 transitions. [2022-03-03 20:29:44,239 INFO L78 Accepts]: Start accepts. Automaton has 5569 states and 18828 transitions. Word has length 39 [2022-03-03 20:29:44,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:29:44,239 INFO L470 AbstractCegarLoop]: Abstraction has 5569 states and 18828 transitions. [2022-03-03 20:29:44,239 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:44,239 INFO L276 IsEmpty]: Start isEmpty. Operand 5569 states and 18828 transitions. [2022-03-03 20:29:44,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:29:44,246 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:29:44,246 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:29:44,246 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable469 [2022-03-03 20:29:44,246 INFO L402 AbstractCegarLoop]: === Iteration 471 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:29:44,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:29:44,246 INFO L85 PathProgramCache]: Analyzing trace with hash 702645706, now seen corresponding path program 471 times [2022-03-03 20:29:44,246 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:29:44,246 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440389998] [2022-03-03 20:29:44,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:29:44,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:29:44,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:29:44,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:29:44,387 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:29:44,387 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440389998] [2022-03-03 20:29:44,387 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440389998] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:29:44,387 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:29:44,387 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:29:44,387 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952395125] [2022-03-03 20:29:44,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:29:44,387 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:29:44,387 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:29:44,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:29:44,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:29:44,387 INFO L87 Difference]: Start difference. First operand 5569 states and 18828 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:45,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:29:45,287 INFO L93 Difference]: Finished difference Result 5844 states and 19656 transitions. [2022-03-03 20:29:45,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 20:29:45,288 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:29:45,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:29:45,298 INFO L225 Difference]: With dead ends: 5844 [2022-03-03 20:29:45,298 INFO L226 Difference]: Without dead ends: 5781 [2022-03-03 20:29:45,299 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 395 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=197, Invalid=1873, Unknown=0, NotChecked=0, Total=2070 [2022-03-03 20:29:45,299 INFO L933 BasicCegarLoop]: 94 mSDtfsCounter, 220 mSDsluCounter, 1164 mSDsCounter, 0 mSdLazyCounter, 1631 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 937 SdHoareTripleChecker+Invalid, 1668 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1631 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:29:45,299 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [220 Valid, 937 Invalid, 1668 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1631 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:29:45,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5781 states. [2022-03-03 20:29:45,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5781 to 5551. [2022-03-03 20:29:45,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5551 states, 5550 states have (on average 3.3846846846846845) internal successors, (18785), 5550 states have internal predecessors, (18785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:45,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5551 states to 5551 states and 18785 transitions. [2022-03-03 20:29:45,365 INFO L78 Accepts]: Start accepts. Automaton has 5551 states and 18785 transitions. Word has length 39 [2022-03-03 20:29:45,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:29:45,366 INFO L470 AbstractCegarLoop]: Abstraction has 5551 states and 18785 transitions. [2022-03-03 20:29:45,366 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:45,366 INFO L276 IsEmpty]: Start isEmpty. Operand 5551 states and 18785 transitions. [2022-03-03 20:29:45,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:29:45,372 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:29:45,373 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:29:45,373 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable470 [2022-03-03 20:29:45,373 INFO L402 AbstractCegarLoop]: === Iteration 472 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:29:45,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:29:45,373 INFO L85 PathProgramCache]: Analyzing trace with hash -1310590102, now seen corresponding path program 472 times [2022-03-03 20:29:45,373 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:29:45,373 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072739377] [2022-03-03 20:29:45,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:29:45,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:29:45,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:29:45,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:29:45,594 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:29:45,594 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072739377] [2022-03-03 20:29:45,594 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072739377] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:29:45,594 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:29:45,595 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:29:45,595 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298145985] [2022-03-03 20:29:45,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:29:45,595 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:29:45,595 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:29:45,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:29:45,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:29:45,595 INFO L87 Difference]: Start difference. First operand 5551 states and 18785 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:46,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:29:46,715 INFO L93 Difference]: Finished difference Result 5948 states and 19899 transitions. [2022-03-03 20:29:46,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-03 20:29:46,716 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:29:46,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:29:46,727 INFO L225 Difference]: With dead ends: 5948 [2022-03-03 20:29:46,727 INFO L226 Difference]: Without dead ends: 5893 [2022-03-03 20:29:46,728 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 512 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=238, Invalid=2212, Unknown=0, NotChecked=0, Total=2450 [2022-03-03 20:29:46,728 INFO L933 BasicCegarLoop]: 96 mSDtfsCounter, 258 mSDsluCounter, 1200 mSDsCounter, 0 mSdLazyCounter, 1666 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 968 SdHoareTripleChecker+Invalid, 1710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 1666 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:29:46,728 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [258 Valid, 968 Invalid, 1710 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 1666 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:29:46,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5893 states. [2022-03-03 20:29:46,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5893 to 5553. [2022-03-03 20:29:46,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5553 states, 5552 states have (on average 3.3843659942363113) internal successors, (18790), 5552 states have internal predecessors, (18790), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:46,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5553 states to 5553 states and 18790 transitions. [2022-03-03 20:29:46,796 INFO L78 Accepts]: Start accepts. Automaton has 5553 states and 18790 transitions. Word has length 39 [2022-03-03 20:29:46,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:29:46,796 INFO L470 AbstractCegarLoop]: Abstraction has 5553 states and 18790 transitions. [2022-03-03 20:29:46,797 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:46,797 INFO L276 IsEmpty]: Start isEmpty. Operand 5553 states and 18790 transitions. [2022-03-03 20:29:46,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:29:46,803 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:29:46,804 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:29:46,804 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable471 [2022-03-03 20:29:46,804 INFO L402 AbstractCegarLoop]: === Iteration 473 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:29:46,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:29:46,804 INFO L85 PathProgramCache]: Analyzing trace with hash 26467912, now seen corresponding path program 473 times [2022-03-03 20:29:46,804 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:29:46,804 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542227741] [2022-03-03 20:29:46,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:29:46,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:29:46,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:29:47,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:29:47,022 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:29:47,022 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542227741] [2022-03-03 20:29:47,022 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542227741] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:29:47,022 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:29:47,022 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:29:47,022 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817961314] [2022-03-03 20:29:47,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:29:47,022 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:29:47,022 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:29:47,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:29:47,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:29:47,023 INFO L87 Difference]: Start difference. First operand 5553 states and 18790 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:48,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:29:48,027 INFO L93 Difference]: Finished difference Result 5924 states and 19833 transitions. [2022-03-03 20:29:48,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-03 20:29:48,028 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:29:48,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:29:48,038 INFO L225 Difference]: With dead ends: 5924 [2022-03-03 20:29:48,039 INFO L226 Difference]: Without dead ends: 5881 [2022-03-03 20:29:48,039 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 422 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=212, Invalid=1950, Unknown=0, NotChecked=0, Total=2162 [2022-03-03 20:29:48,039 INFO L933 BasicCegarLoop]: 93 mSDtfsCounter, 249 mSDsluCounter, 1165 mSDsCounter, 0 mSdLazyCounter, 1634 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 936 SdHoareTripleChecker+Invalid, 1672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:29:48,039 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [249 Valid, 936 Invalid, 1672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1634 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:29:48,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5881 states. [2022-03-03 20:29:48,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5881 to 5559. [2022-03-03 20:29:48,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5559 states, 5558 states have (on average 3.383051457358762) internal successors, (18803), 5558 states have internal predecessors, (18803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:48,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5559 states to 5559 states and 18803 transitions. [2022-03-03 20:29:48,109 INFO L78 Accepts]: Start accepts. Automaton has 5559 states and 18803 transitions. Word has length 39 [2022-03-03 20:29:48,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:29:48,109 INFO L470 AbstractCegarLoop]: Abstraction has 5559 states and 18803 transitions. [2022-03-03 20:29:48,109 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:48,109 INFO L276 IsEmpty]: Start isEmpty. Operand 5559 states and 18803 transitions. [2022-03-03 20:29:48,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:29:48,116 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:29:48,116 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:29:48,116 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable472 [2022-03-03 20:29:48,116 INFO L402 AbstractCegarLoop]: === Iteration 474 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:29:48,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:29:48,116 INFO L85 PathProgramCache]: Analyzing trace with hash -244951638, now seen corresponding path program 474 times [2022-03-03 20:29:48,116 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:29:48,116 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603580535] [2022-03-03 20:29:48,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:29:48,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:29:48,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:29:48,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:29:48,277 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:29:48,277 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603580535] [2022-03-03 20:29:48,278 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603580535] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:29:48,278 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:29:48,278 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:29:48,278 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221809172] [2022-03-03 20:29:48,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:29:48,278 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:29:48,278 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:29:48,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:29:48,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:29:48,278 INFO L87 Difference]: Start difference. First operand 5559 states and 18803 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:49,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:29:49,163 INFO L93 Difference]: Finished difference Result 5893 states and 19766 transitions. [2022-03-03 20:29:49,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-03-03 20:29:49,163 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:29:49,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:29:49,174 INFO L225 Difference]: With dead ends: 5893 [2022-03-03 20:29:49,174 INFO L226 Difference]: Without dead ends: 5842 [2022-03-03 20:29:49,174 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 394 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=203, Invalid=1867, Unknown=0, NotChecked=0, Total=2070 [2022-03-03 20:29:49,175 INFO L933 BasicCegarLoop]: 93 mSDtfsCounter, 232 mSDsluCounter, 1167 mSDsCounter, 0 mSdLazyCounter, 1634 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 939 SdHoareTripleChecker+Invalid, 1671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 20:29:49,175 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [232 Valid, 939 Invalid, 1671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1634 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 20:29:49,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5842 states. [2022-03-03 20:29:49,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5842 to 5553. [2022-03-03 20:29:49,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5553 states, 5552 states have (on average 3.384005763688761) internal successors, (18788), 5552 states have internal predecessors, (18788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:49,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5553 states to 5553 states and 18788 transitions. [2022-03-03 20:29:49,241 INFO L78 Accepts]: Start accepts. Automaton has 5553 states and 18788 transitions. Word has length 39 [2022-03-03 20:29:49,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:29:49,241 INFO L470 AbstractCegarLoop]: Abstraction has 5553 states and 18788 transitions. [2022-03-03 20:29:49,241 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:49,241 INFO L276 IsEmpty]: Start isEmpty. Operand 5553 states and 18788 transitions. [2022-03-03 20:29:49,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:29:49,248 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:29:49,248 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:29:49,248 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable473 [2022-03-03 20:29:49,248 INFO L402 AbstractCegarLoop]: === Iteration 475 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:29:49,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:29:49,249 INFO L85 PathProgramCache]: Analyzing trace with hash 1818050774, now seen corresponding path program 475 times [2022-03-03 20:29:49,249 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:29:49,249 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682012299] [2022-03-03 20:29:49,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:29:49,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:29:49,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:29:49,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:29:49,407 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:29:49,407 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682012299] [2022-03-03 20:29:49,407 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682012299] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:29:49,407 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:29:49,407 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:29:49,407 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975175740] [2022-03-03 20:29:49,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:29:49,407 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:29:49,407 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:29:49,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:29:49,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:29:49,407 INFO L87 Difference]: Start difference. First operand 5553 states and 18788 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:50,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:29:50,746 INFO L93 Difference]: Finished difference Result 7223 states and 24278 transitions. [2022-03-03 20:29:50,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-03-03 20:29:50,747 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:29:50,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:29:50,760 INFO L225 Difference]: With dead ends: 7223 [2022-03-03 20:29:50,760 INFO L226 Difference]: Without dead ends: 7184 [2022-03-03 20:29:50,760 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1225 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=396, Invalid=4160, Unknown=0, NotChecked=0, Total=4556 [2022-03-03 20:29:50,761 INFO L933 BasicCegarLoop]: 159 mSDtfsCounter, 352 mSDsluCounter, 1885 mSDsCounter, 0 mSdLazyCounter, 2570 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 352 SdHoareTripleChecker+Valid, 1626 SdHoareTripleChecker+Invalid, 2654 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 2570 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:29:50,761 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [352 Valid, 1626 Invalid, 2654 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 2570 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:29:50,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7184 states. [2022-03-03 20:29:50,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7184 to 5575. [2022-03-03 20:29:50,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5575 states, 5574 states have (on average 3.384104772156441) internal successors, (18863), 5574 states have internal predecessors, (18863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:50,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5575 states to 5575 states and 18863 transitions. [2022-03-03 20:29:50,838 INFO L78 Accepts]: Start accepts. Automaton has 5575 states and 18863 transitions. Word has length 39 [2022-03-03 20:29:50,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:29:50,838 INFO L470 AbstractCegarLoop]: Abstraction has 5575 states and 18863 transitions. [2022-03-03 20:29:50,838 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:50,838 INFO L276 IsEmpty]: Start isEmpty. Operand 5575 states and 18863 transitions. [2022-03-03 20:29:50,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:29:50,845 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:29:50,846 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:29:50,846 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable474 [2022-03-03 20:29:50,846 INFO L402 AbstractCegarLoop]: === Iteration 476 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:29:50,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:29:50,846 INFO L85 PathProgramCache]: Analyzing trace with hash 60066360, now seen corresponding path program 476 times [2022-03-03 20:29:50,846 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:29:50,846 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088732392] [2022-03-03 20:29:50,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:29:50,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:29:50,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:29:51,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:29:51,002 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:29:51,002 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088732392] [2022-03-03 20:29:51,002 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088732392] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:29:51,003 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:29:51,003 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:29:51,003 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554300174] [2022-03-03 20:29:51,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:29:51,003 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:29:51,003 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:29:51,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:29:51,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:29:51,003 INFO L87 Difference]: Start difference. First operand 5575 states and 18863 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:52,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:29:52,627 INFO L93 Difference]: Finished difference Result 7211 states and 24234 transitions. [2022-03-03 20:29:52,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-03-03 20:29:52,627 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:29:52,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:29:52,640 INFO L225 Difference]: With dead ends: 7211 [2022-03-03 20:29:52,641 INFO L226 Difference]: Without dead ends: 7156 [2022-03-03 20:29:52,641 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1175 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=380, Invalid=4042, Unknown=0, NotChecked=0, Total=4422 [2022-03-03 20:29:52,641 INFO L933 BasicCegarLoop]: 165 mSDtfsCounter, 346 mSDsluCounter, 1924 mSDsCounter, 0 mSdLazyCounter, 2644 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 1672 SdHoareTripleChecker+Invalid, 2724 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 2644 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-03 20:29:52,641 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [346 Valid, 1672 Invalid, 2724 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 2644 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-03 20:29:52,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7156 states. [2022-03-03 20:29:52,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7156 to 5563. [2022-03-03 20:29:52,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5563 states, 5562 states have (on average 3.3852930600503415) internal successors, (18829), 5562 states have internal predecessors, (18829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:52,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5563 states to 5563 states and 18829 transitions. [2022-03-03 20:29:52,715 INFO L78 Accepts]: Start accepts. Automaton has 5563 states and 18829 transitions. Word has length 39 [2022-03-03 20:29:52,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:29:52,716 INFO L470 AbstractCegarLoop]: Abstraction has 5563 states and 18829 transitions. [2022-03-03 20:29:52,716 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:52,716 INFO L276 IsEmpty]: Start isEmpty. Operand 5563 states and 18829 transitions. [2022-03-03 20:29:52,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:29:52,722 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:29:52,723 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:29:52,723 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable475 [2022-03-03 20:29:52,723 INFO L402 AbstractCegarLoop]: === Iteration 477 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:29:52,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:29:52,723 INFO L85 PathProgramCache]: Analyzing trace with hash -734356824, now seen corresponding path program 477 times [2022-03-03 20:29:52,723 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:29:52,723 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852889294] [2022-03-03 20:29:52,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:29:52,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:29:52,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:29:52,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:29:52,964 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:29:52,964 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852889294] [2022-03-03 20:29:52,964 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852889294] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:29:52,964 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:29:52,964 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:29:52,964 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046894860] [2022-03-03 20:29:52,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:29:52,964 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:29:52,964 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:29:52,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:29:52,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:29:52,965 INFO L87 Difference]: Start difference. First operand 5563 states and 18829 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:53,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:29:53,956 INFO L93 Difference]: Finished difference Result 5963 states and 19963 transitions. [2022-03-03 20:29:53,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-03 20:29:53,956 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:29:53,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:29:53,967 INFO L225 Difference]: With dead ends: 5963 [2022-03-03 20:29:53,967 INFO L226 Difference]: Without dead ends: 5872 [2022-03-03 20:29:53,968 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 451 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=217, Invalid=2039, Unknown=0, NotChecked=0, Total=2256 [2022-03-03 20:29:53,968 INFO L933 BasicCegarLoop]: 104 mSDtfsCounter, 251 mSDsluCounter, 1249 mSDsCounter, 0 mSdLazyCounter, 1659 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 1054 SdHoareTripleChecker+Invalid, 1697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:29:53,968 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [251 Valid, 1054 Invalid, 1697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1659 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:29:53,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5872 states. [2022-03-03 20:29:54,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5872 to 5569. [2022-03-03 20:29:54,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5569 states, 5568 states have (on average 3.38433908045977) internal successors, (18844), 5568 states have internal predecessors, (18844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:54,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5569 states to 5569 states and 18844 transitions. [2022-03-03 20:29:54,072 INFO L78 Accepts]: Start accepts. Automaton has 5569 states and 18844 transitions. Word has length 39 [2022-03-03 20:29:54,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:29:54,072 INFO L470 AbstractCegarLoop]: Abstraction has 5569 states and 18844 transitions. [2022-03-03 20:29:54,072 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:54,073 INFO L276 IsEmpty]: Start isEmpty. Operand 5569 states and 18844 transitions. [2022-03-03 20:29:54,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:29:54,080 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:29:54,080 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:29:54,080 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable476 [2022-03-03 20:29:54,080 INFO L402 AbstractCegarLoop]: === Iteration 478 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:29:54,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:29:54,080 INFO L85 PathProgramCache]: Analyzing trace with hash 556187594, now seen corresponding path program 478 times [2022-03-03 20:29:54,080 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:29:54,080 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868622509] [2022-03-03 20:29:54,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:29:54,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:29:54,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:29:54,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:29:54,223 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:29:54,223 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868622509] [2022-03-03 20:29:54,223 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868622509] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:29:54,223 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:29:54,223 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:29:54,223 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049181465] [2022-03-03 20:29:54,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:29:54,224 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:29:54,224 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:29:54,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:29:54,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:29:54,224 INFO L87 Difference]: Start difference. First operand 5569 states and 18844 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:55,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:29:55,057 INFO L93 Difference]: Finished difference Result 6013 states and 20049 transitions. [2022-03-03 20:29:55,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-03-03 20:29:55,057 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:29:55,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:29:55,068 INFO L225 Difference]: With dead ends: 6013 [2022-03-03 20:29:55,069 INFO L226 Difference]: Without dead ends: 5958 [2022-03-03 20:29:55,069 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 451 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=221, Invalid=2035, Unknown=0, NotChecked=0, Total=2256 [2022-03-03 20:29:55,069 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 253 mSDsluCounter, 1236 mSDsCounter, 0 mSdLazyCounter, 1693 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 1005 SdHoareTripleChecker+Invalid, 1733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1693 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 20:29:55,069 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [253 Valid, 1005 Invalid, 1733 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1693 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 20:29:55,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5958 states. [2022-03-03 20:29:55,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5958 to 5571. [2022-03-03 20:29:55,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5571 states, 5570 states have (on average 3.384021543985637) internal successors, (18849), 5570 states have internal predecessors, (18849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:55,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5571 states to 5571 states and 18849 transitions. [2022-03-03 20:29:55,138 INFO L78 Accepts]: Start accepts. Automaton has 5571 states and 18849 transitions. Word has length 39 [2022-03-03 20:29:55,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:29:55,138 INFO L470 AbstractCegarLoop]: Abstraction has 5571 states and 18849 transitions. [2022-03-03 20:29:55,139 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:55,139 INFO L276 IsEmpty]: Start isEmpty. Operand 5571 states and 18849 transitions. [2022-03-03 20:29:55,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:29:55,145 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:29:55,145 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:29:55,146 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable477 [2022-03-03 20:29:55,146 INFO L402 AbstractCegarLoop]: === Iteration 479 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:29:55,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:29:55,146 INFO L85 PathProgramCache]: Analyzing trace with hash 1893245608, now seen corresponding path program 479 times [2022-03-03 20:29:55,146 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:29:55,146 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030618038] [2022-03-03 20:29:55,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:29:55,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:29:55,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:29:55,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:29:55,335 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:29:55,335 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030618038] [2022-03-03 20:29:55,335 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030618038] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:29:55,335 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:29:55,335 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:29:55,335 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441131712] [2022-03-03 20:29:55,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:29:55,335 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:29:55,335 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:29:55,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:29:55,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:29:55,335 INFO L87 Difference]: Start difference. First operand 5571 states and 18849 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:56,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:29:56,319 INFO L93 Difference]: Finished difference Result 5948 states and 19897 transitions. [2022-03-03 20:29:56,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 20:29:56,319 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:29:56,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:29:56,329 INFO L225 Difference]: With dead ends: 5948 [2022-03-03 20:29:56,330 INFO L226 Difference]: Without dead ends: 5905 [2022-03-03 20:29:56,330 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 366 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=192, Invalid=1788, Unknown=0, NotChecked=0, Total=1980 [2022-03-03 20:29:56,330 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 244 mSDsluCounter, 1198 mSDsCounter, 0 mSdLazyCounter, 1656 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 972 SdHoareTripleChecker+Invalid, 1690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1656 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:29:56,330 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [244 Valid, 972 Invalid, 1690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1656 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:29:56,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5905 states. [2022-03-03 20:29:56,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5905 to 5577. [2022-03-03 20:29:56,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5577 states, 5576 states have (on average 3.3827116212338595) internal successors, (18862), 5576 states have internal predecessors, (18862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:56,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5577 states to 5577 states and 18862 transitions. [2022-03-03 20:29:56,399 INFO L78 Accepts]: Start accepts. Automaton has 5577 states and 18862 transitions. Word has length 39 [2022-03-03 20:29:56,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:29:56,399 INFO L470 AbstractCegarLoop]: Abstraction has 5577 states and 18862 transitions. [2022-03-03 20:29:56,399 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:56,399 INFO L276 IsEmpty]: Start isEmpty. Operand 5577 states and 18862 transitions. [2022-03-03 20:29:56,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:29:56,406 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:29:56,406 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:29:56,407 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable478 [2022-03-03 20:29:56,407 INFO L402 AbstractCegarLoop]: === Iteration 480 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:29:56,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:29:56,407 INFO L85 PathProgramCache]: Analyzing trace with hash 1621826058, now seen corresponding path program 480 times [2022-03-03 20:29:56,407 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:29:56,407 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41780582] [2022-03-03 20:29:56,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:29:56,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:29:56,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:29:56,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:29:56,646 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:29:56,646 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41780582] [2022-03-03 20:29:56,646 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41780582] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:29:56,646 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:29:56,646 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:29:56,646 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524040568] [2022-03-03 20:29:56,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:29:56,646 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:29:56,646 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:29:56,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:29:56,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:29:56,647 INFO L87 Difference]: Start difference. First operand 5577 states and 18862 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:57,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:29:57,566 INFO L93 Difference]: Finished difference Result 5917 states and 19830 transitions. [2022-03-03 20:29:57,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 20:29:57,566 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:29:57,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:29:57,577 INFO L225 Difference]: With dead ends: 5917 [2022-03-03 20:29:57,577 INFO L226 Difference]: Without dead ends: 5866 [2022-03-03 20:29:57,577 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 366 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=192, Invalid=1788, Unknown=0, NotChecked=0, Total=1980 [2022-03-03 20:29:57,577 INFO L933 BasicCegarLoop]: 94 mSDtfsCounter, 236 mSDsluCounter, 1186 mSDsCounter, 0 mSdLazyCounter, 1642 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 960 SdHoareTripleChecker+Invalid, 1676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1642 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:29:57,577 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [236 Valid, 960 Invalid, 1676 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1642 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:29:57,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5866 states. [2022-03-03 20:29:57,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5866 to 5571. [2022-03-03 20:29:57,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5571 states, 5570 states have (on average 3.383662477558348) internal successors, (18847), 5570 states have internal predecessors, (18847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:57,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5571 states to 5571 states and 18847 transitions. [2022-03-03 20:29:57,645 INFO L78 Accepts]: Start accepts. Automaton has 5571 states and 18847 transitions. Word has length 39 [2022-03-03 20:29:57,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:29:57,645 INFO L470 AbstractCegarLoop]: Abstraction has 5571 states and 18847 transitions. [2022-03-03 20:29:57,645 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:57,645 INFO L276 IsEmpty]: Start isEmpty. Operand 5571 states and 18847 transitions. [2022-03-03 20:29:57,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:29:57,652 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:29:57,652 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:29:57,652 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable479 [2022-03-03 20:29:57,652 INFO L402 AbstractCegarLoop]: === Iteration 481 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:29:57,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:29:57,653 INFO L85 PathProgramCache]: Analyzing trace with hash -610138826, now seen corresponding path program 481 times [2022-03-03 20:29:57,653 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:29:57,653 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842560839] [2022-03-03 20:29:57,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:29:57,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:29:57,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:29:57,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:29:57,810 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:29:57,810 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842560839] [2022-03-03 20:29:57,810 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842560839] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:29:57,810 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:29:57,810 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:29:57,810 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880888551] [2022-03-03 20:29:57,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:29:57,810 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:29:57,811 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:29:57,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:29:57,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:29:57,811 INFO L87 Difference]: Start difference. First operand 5571 states and 18847 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:59,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:29:59,106 INFO L93 Difference]: Finished difference Result 6897 states and 23071 transitions. [2022-03-03 20:29:59,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-03-03 20:29:59,106 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:29:59,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:29:59,119 INFO L225 Difference]: With dead ends: 6897 [2022-03-03 20:29:59,119 INFO L226 Difference]: Without dead ends: 6858 [2022-03-03 20:29:59,119 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1227 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=401, Invalid=4155, Unknown=0, NotChecked=0, Total=4556 [2022-03-03 20:29:59,120 INFO L933 BasicCegarLoop]: 127 mSDtfsCounter, 333 mSDsluCounter, 1544 mSDsCounter, 0 mSdLazyCounter, 2234 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 333 SdHoareTripleChecker+Valid, 1304 SdHoareTripleChecker+Invalid, 2313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 2234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:29:59,120 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [333 Valid, 1304 Invalid, 2313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 2234 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:29:59,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6858 states. [2022-03-03 20:29:59,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6858 to 5579. [2022-03-03 20:29:59,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5579 states, 5578 states have (on average 3.3838293295087847) internal successors, (18875), 5578 states have internal predecessors, (18875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:59,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5579 states to 5579 states and 18875 transitions. [2022-03-03 20:29:59,254 INFO L78 Accepts]: Start accepts. Automaton has 5579 states and 18875 transitions. Word has length 39 [2022-03-03 20:29:59,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:29:59,255 INFO L470 AbstractCegarLoop]: Abstraction has 5579 states and 18875 transitions. [2022-03-03 20:29:59,255 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:29:59,255 INFO L276 IsEmpty]: Start isEmpty. Operand 5579 states and 18875 transitions. [2022-03-03 20:29:59,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:29:59,261 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:29:59,261 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:29:59,261 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable480 [2022-03-03 20:29:59,262 INFO L402 AbstractCegarLoop]: === Iteration 482 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:29:59,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:29:59,262 INFO L85 PathProgramCache]: Analyzing trace with hash 1926844056, now seen corresponding path program 482 times [2022-03-03 20:29:59,262 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:29:59,262 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826180937] [2022-03-03 20:29:59,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:29:59,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:29:59,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:29:59,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:29:59,419 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:29:59,419 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826180937] [2022-03-03 20:29:59,419 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826180937] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:29:59,419 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:29:59,419 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:29:59,419 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106672368] [2022-03-03 20:29:59,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:29:59,419 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:29:59,419 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:29:59,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:29:59,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:29:59,419 INFO L87 Difference]: Start difference. First operand 5579 states and 18875 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:00,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:30:00,576 INFO L93 Difference]: Finished difference Result 6885 states and 23027 transitions. [2022-03-03 20:30:00,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-03 20:30:00,576 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:30:00,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:30:00,589 INFO L225 Difference]: With dead ends: 6885 [2022-03-03 20:30:00,589 INFO L226 Difference]: Without dead ends: 6834 [2022-03-03 20:30:00,589 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1131 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=372, Invalid=3918, Unknown=0, NotChecked=0, Total=4290 [2022-03-03 20:30:00,589 INFO L933 BasicCegarLoop]: 132 mSDtfsCounter, 319 mSDsluCounter, 1585 mSDsCounter, 0 mSdLazyCounter, 2317 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 1349 SdHoareTripleChecker+Invalid, 2390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 2317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:30:00,590 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [319 Valid, 1349 Invalid, 2390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 2317 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:30:00,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6834 states. [2022-03-03 20:30:00,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6834 to 5575. [2022-03-03 20:30:00,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5575 states, 5574 states have (on average 3.384104772156441) internal successors, (18863), 5574 states have internal predecessors, (18863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:00,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5575 states to 5575 states and 18863 transitions. [2022-03-03 20:30:00,663 INFO L78 Accepts]: Start accepts. Automaton has 5575 states and 18863 transitions. Word has length 39 [2022-03-03 20:30:00,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:30:00,663 INFO L470 AbstractCegarLoop]: Abstraction has 5575 states and 18863 transitions. [2022-03-03 20:30:00,664 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:00,664 INFO L276 IsEmpty]: Start isEmpty. Operand 5575 states and 18863 transitions. [2022-03-03 20:30:00,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:30:00,670 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:30:00,671 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:30:00,671 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable481 [2022-03-03 20:30:00,671 INFO L402 AbstractCegarLoop]: === Iteration 483 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:30:00,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:30:00,671 INFO L85 PathProgramCache]: Analyzing trace with hash -706519128, now seen corresponding path program 483 times [2022-03-03 20:30:00,671 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:30:00,671 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982686345] [2022-03-03 20:30:00,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:30:00,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:30:00,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:30:00,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:30:00,810 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:30:00,810 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982686345] [2022-03-03 20:30:00,810 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982686345] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:30:00,810 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:30:00,810 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:30:00,810 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637893896] [2022-03-03 20:30:00,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:30:00,810 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:30:00,810 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:30:00,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:30:00,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:30:00,811 INFO L87 Difference]: Start difference. First operand 5575 states and 18863 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:01,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:30:01,547 INFO L93 Difference]: Finished difference Result 5874 states and 19749 transitions. [2022-03-03 20:30:01,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-03 20:30:01,547 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:30:01,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:30:01,580 INFO L225 Difference]: With dead ends: 5874 [2022-03-03 20:30:01,580 INFO L226 Difference]: Without dead ends: 5811 [2022-03-03 20:30:01,580 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 479 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=221, Invalid=2035, Unknown=0, NotChecked=0, Total=2256 [2022-03-03 20:30:01,580 INFO L933 BasicCegarLoop]: 105 mSDtfsCounter, 232 mSDsluCounter, 1123 mSDsCounter, 0 mSdLazyCounter, 1540 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 963 SdHoareTripleChecker+Invalid, 1579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1540 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 20:30:01,580 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [232 Valid, 963 Invalid, 1579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1540 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 20:30:01,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5811 states. [2022-03-03 20:30:01,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5811 to 5575. [2022-03-03 20:30:01,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5575 states, 5574 states have (on average 3.384104772156441) internal successors, (18863), 5574 states have internal predecessors, (18863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:01,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5575 states to 5575 states and 18863 transitions. [2022-03-03 20:30:01,648 INFO L78 Accepts]: Start accepts. Automaton has 5575 states and 18863 transitions. Word has length 39 [2022-03-03 20:30:01,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:30:01,648 INFO L470 AbstractCegarLoop]: Abstraction has 5575 states and 18863 transitions. [2022-03-03 20:30:01,648 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:01,649 INFO L276 IsEmpty]: Start isEmpty. Operand 5575 states and 18863 transitions. [2022-03-03 20:30:01,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:30:01,656 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:30:01,656 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:30:01,656 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable482 [2022-03-03 20:30:01,656 INFO L402 AbstractCegarLoop]: === Iteration 484 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:30:01,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:30:01,656 INFO L85 PathProgramCache]: Analyzing trace with hash 304942662, now seen corresponding path program 484 times [2022-03-03 20:30:01,656 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:30:01,656 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387911944] [2022-03-03 20:30:01,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:30:01,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:30:01,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:30:01,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:30:01,850 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:30:01,850 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387911944] [2022-03-03 20:30:01,850 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387911944] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:30:01,850 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:30:01,850 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:30:01,850 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613391613] [2022-03-03 20:30:01,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:30:01,850 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:30:01,850 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:30:01,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:30:01,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:30:01,850 INFO L87 Difference]: Start difference. First operand 5575 states and 18863 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:03,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:30:03,763 INFO L93 Difference]: Finished difference Result 6935 states and 23222 transitions. [2022-03-03 20:30:03,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-03-03 20:30:03,764 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:30:03,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:30:03,776 INFO L225 Difference]: With dead ends: 6935 [2022-03-03 20:30:03,776 INFO L226 Difference]: Without dead ends: 6872 [2022-03-03 20:30:03,777 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1705 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=523, Invalid=5329, Unknown=0, NotChecked=0, Total=5852 [2022-03-03 20:30:03,777 INFO L933 BasicCegarLoop]: 150 mSDtfsCounter, 330 mSDsluCounter, 1728 mSDsCounter, 0 mSdLazyCounter, 2380 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 330 SdHoareTripleChecker+Valid, 1553 SdHoareTripleChecker+Invalid, 2466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 2380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 20:30:03,777 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [330 Valid, 1553 Invalid, 2466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 2380 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 20:30:03,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6872 states. [2022-03-03 20:30:03,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6872 to 5597. [2022-03-03 20:30:03,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5597 states, 5596 states have (on average 3.384203002144389) internal successors, (18938), 5596 states have internal predecessors, (18938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:03,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5597 states to 5597 states and 18938 transitions. [2022-03-03 20:30:03,853 INFO L78 Accepts]: Start accepts. Automaton has 5597 states and 18938 transitions. Word has length 39 [2022-03-03 20:30:03,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:30:03,853 INFO L470 AbstractCegarLoop]: Abstraction has 5597 states and 18938 transitions. [2022-03-03 20:30:03,853 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:03,853 INFO L276 IsEmpty]: Start isEmpty. Operand 5597 states and 18938 transitions. [2022-03-03 20:30:03,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:30:03,860 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:30:03,860 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:30:03,860 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable483 [2022-03-03 20:30:03,860 INFO L402 AbstractCegarLoop]: === Iteration 485 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:30:03,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:30:03,860 INFO L85 PathProgramCache]: Analyzing trace with hash -1453041752, now seen corresponding path program 485 times [2022-03-03 20:30:03,860 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:30:03,860 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213634183] [2022-03-03 20:30:03,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:30:03,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:30:03,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:30:04,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:30:04,046 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:30:04,046 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213634183] [2022-03-03 20:30:04,046 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213634183] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:30:04,046 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:30:04,046 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:30:04,046 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793202615] [2022-03-03 20:30:04,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:30:04,047 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:30:04,047 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:30:04,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:30:04,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:30:04,047 INFO L87 Difference]: Start difference. First operand 5597 states and 18938 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:06,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:30:06,031 INFO L93 Difference]: Finished difference Result 6822 states and 22928 transitions. [2022-03-03 20:30:06,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-03-03 20:30:06,031 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:30:06,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:30:06,044 INFO L225 Difference]: With dead ends: 6822 [2022-03-03 20:30:06,044 INFO L226 Difference]: Without dead ends: 6739 [2022-03-03 20:30:06,045 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1535 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=472, Invalid=4930, Unknown=0, NotChecked=0, Total=5402 [2022-03-03 20:30:06,045 INFO L933 BasicCegarLoop]: 158 mSDtfsCounter, 317 mSDsluCounter, 1760 mSDsCounter, 0 mSdLazyCounter, 2473 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 317 SdHoareTripleChecker+Valid, 1599 SdHoareTripleChecker+Invalid, 2555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 2473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 20:30:06,045 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [317 Valid, 1599 Invalid, 2555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 2473 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 20:30:06,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6739 states. [2022-03-03 20:30:06,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6739 to 5575. [2022-03-03 20:30:06,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5575 states, 5574 states have (on average 3.385540007176175) internal successors, (18871), 5574 states have internal predecessors, (18871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:06,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5575 states to 5575 states and 18871 transitions. [2022-03-03 20:30:06,124 INFO L78 Accepts]: Start accepts. Automaton has 5575 states and 18871 transitions. Word has length 39 [2022-03-03 20:30:06,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:30:06,124 INFO L470 AbstractCegarLoop]: Abstraction has 5575 states and 18871 transitions. [2022-03-03 20:30:06,124 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:06,124 INFO L276 IsEmpty]: Start isEmpty. Operand 5575 states and 18871 transitions. [2022-03-03 20:30:06,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:30:06,132 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:30:06,132 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:30:06,132 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable484 [2022-03-03 20:30:06,132 INFO L402 AbstractCegarLoop]: === Iteration 486 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:30:06,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:30:06,132 INFO L85 PathProgramCache]: Analyzing trace with hash 895774712, now seen corresponding path program 486 times [2022-03-03 20:30:06,132 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:30:06,132 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941142878] [2022-03-03 20:30:06,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:30:06,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:30:06,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:30:06,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:30:06,351 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:30:06,351 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941142878] [2022-03-03 20:30:06,351 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941142878] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:30:06,351 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:30:06,351 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:30:06,351 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711754354] [2022-03-03 20:30:06,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:30:06,351 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:30:06,351 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:30:06,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:30:06,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:30:06,351 INFO L87 Difference]: Start difference. First operand 5575 states and 18871 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:07,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:30:07,979 INFO L93 Difference]: Finished difference Result 7661 states and 25614 transitions. [2022-03-03 20:30:07,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-03-03 20:30:07,979 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:30:07,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:30:07,994 INFO L225 Difference]: With dead ends: 7661 [2022-03-03 20:30:07,994 INFO L226 Difference]: Without dead ends: 7606 [2022-03-03 20:30:07,994 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1196 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=374, Invalid=4048, Unknown=0, NotChecked=0, Total=4422 [2022-03-03 20:30:07,994 INFO L933 BasicCegarLoop]: 187 mSDtfsCounter, 469 mSDsluCounter, 2157 mSDsCounter, 0 mSdLazyCounter, 2533 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 469 SdHoareTripleChecker+Valid, 1992 SdHoareTripleChecker+Invalid, 2627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 2533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 20:30:07,994 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [469 Valid, 1992 Invalid, 2627 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 2533 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 20:30:08,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7606 states. [2022-03-03 20:30:08,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7606 to 5586. [2022-03-03 20:30:08,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5586 states, 5585 states have (on average 3.3853178155774395) internal successors, (18907), 5585 states have internal predecessors, (18907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:08,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5586 states to 5586 states and 18907 transitions. [2022-03-03 20:30:08,096 INFO L78 Accepts]: Start accepts. Automaton has 5586 states and 18907 transitions. Word has length 39 [2022-03-03 20:30:08,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:30:08,096 INFO L470 AbstractCegarLoop]: Abstraction has 5586 states and 18907 transitions. [2022-03-03 20:30:08,096 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:08,096 INFO L276 IsEmpty]: Start isEmpty. Operand 5586 states and 18907 transitions. [2022-03-03 20:30:08,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:30:08,103 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:30:08,103 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:30:08,103 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable485 [2022-03-03 20:30:08,103 INFO L402 AbstractCegarLoop]: === Iteration 487 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:30:08,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:30:08,104 INFO L85 PathProgramCache]: Analyzing trace with hash 2068426934, now seen corresponding path program 487 times [2022-03-03 20:30:08,104 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:30:08,104 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640059935] [2022-03-03 20:30:08,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:30:08,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:30:08,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:30:08,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:30:08,322 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:30:08,323 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640059935] [2022-03-03 20:30:08,323 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640059935] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:30:08,323 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:30:08,323 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:30:08,323 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635413917] [2022-03-03 20:30:08,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:30:08,323 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:30:08,323 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:30:08,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:30:08,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:30:08,323 INFO L87 Difference]: Start difference. First operand 5586 states and 18907 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:09,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:30:09,819 INFO L93 Difference]: Finished difference Result 8399 states and 28103 transitions. [2022-03-03 20:30:09,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-03-03 20:30:09,819 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:30:09,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:30:09,837 INFO L225 Difference]: With dead ends: 8399 [2022-03-03 20:30:09,837 INFO L226 Difference]: Without dead ends: 8276 [2022-03-03 20:30:09,837 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1447 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=411, Invalid=4701, Unknown=0, NotChecked=0, Total=5112 [2022-03-03 20:30:09,837 INFO L933 BasicCegarLoop]: 220 mSDtfsCounter, 468 mSDsluCounter, 2493 mSDsCounter, 0 mSdLazyCounter, 2828 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 468 SdHoareTripleChecker+Valid, 2359 SdHoareTripleChecker+Invalid, 2921 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 2828 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-03 20:30:09,838 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [468 Valid, 2359 Invalid, 2921 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 2828 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-03 20:30:09,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8276 states. [2022-03-03 20:30:09,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8276 to 5584. [2022-03-03 20:30:09,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5584 states, 5583 states have (on average 3.38563496328139) internal successors, (18902), 5583 states have internal predecessors, (18902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:09,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5584 states to 5584 states and 18902 transitions. [2022-03-03 20:30:09,940 INFO L78 Accepts]: Start accepts. Automaton has 5584 states and 18902 transitions. Word has length 39 [2022-03-03 20:30:09,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:30:09,940 INFO L470 AbstractCegarLoop]: Abstraction has 5584 states and 18902 transitions. [2022-03-03 20:30:09,941 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:09,941 INFO L276 IsEmpty]: Start isEmpty. Operand 5584 states and 18902 transitions. [2022-03-03 20:30:09,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:30:09,949 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:30:09,949 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:30:09,949 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable486 [2022-03-03 20:30:09,949 INFO L402 AbstractCegarLoop]: === Iteration 488 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:30:09,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:30:09,949 INFO L85 PathProgramCache]: Analyzing trace with hash 191023332, now seen corresponding path program 488 times [2022-03-03 20:30:09,949 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:30:09,949 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517394542] [2022-03-03 20:30:09,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:30:09,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:30:09,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:30:10,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:30:10,097 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:30:10,097 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517394542] [2022-03-03 20:30:10,097 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517394542] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:30:10,097 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:30:10,097 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:30:10,097 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313002691] [2022-03-03 20:30:10,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:30:10,097 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:30:10,098 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:30:10,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:30:10,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:30:10,098 INFO L87 Difference]: Start difference. First operand 5584 states and 18902 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:11,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:30:11,193 INFO L93 Difference]: Finished difference Result 7566 states and 25388 transitions. [2022-03-03 20:30:11,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-03-03 20:30:11,193 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:30:11,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:30:11,212 INFO L225 Difference]: With dead ends: 7566 [2022-03-03 20:30:11,212 INFO L226 Difference]: Without dead ends: 7475 [2022-03-03 20:30:11,213 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 964 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=323, Invalid=3459, Unknown=0, NotChecked=0, Total=3782 [2022-03-03 20:30:11,213 INFO L933 BasicCegarLoop]: 186 mSDtfsCounter, 437 mSDsluCounter, 2061 mSDsCounter, 0 mSdLazyCounter, 2437 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 437 SdHoareTripleChecker+Valid, 1948 SdHoareTripleChecker+Invalid, 2527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 2437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:30:11,213 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [437 Valid, 1948 Invalid, 2527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 2437 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:30:11,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7475 states. [2022-03-03 20:30:11,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7475 to 5584. [2022-03-03 20:30:11,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5584 states, 5583 states have (on average 3.38456027225506) internal successors, (18896), 5583 states have internal predecessors, (18896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:11,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5584 states to 5584 states and 18896 transitions. [2022-03-03 20:30:11,308 INFO L78 Accepts]: Start accepts. Automaton has 5584 states and 18896 transitions. Word has length 39 [2022-03-03 20:30:11,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:30:11,308 INFO L470 AbstractCegarLoop]: Abstraction has 5584 states and 18896 transitions. [2022-03-03 20:30:11,308 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:11,308 INFO L276 IsEmpty]: Start isEmpty. Operand 5584 states and 18896 transitions. [2022-03-03 20:30:11,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:30:11,316 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:30:11,316 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:30:11,316 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable487 [2022-03-03 20:30:11,316 INFO L402 AbstractCegarLoop]: === Iteration 489 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:30:11,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:30:11,316 INFO L85 PathProgramCache]: Analyzing trace with hash -1311458874, now seen corresponding path program 489 times [2022-03-03 20:30:11,316 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:30:11,316 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945483032] [2022-03-03 20:30:11,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:30:11,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:30:11,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:30:11,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:30:11,459 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:30:11,459 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945483032] [2022-03-03 20:30:11,459 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945483032] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:30:11,459 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:30:11,459 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:30:11,459 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428138988] [2022-03-03 20:30:11,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:30:11,459 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:30:11,459 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:30:11,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:30:11,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:30:11,460 INFO L87 Difference]: Start difference. First operand 5584 states and 18896 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:12,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:30:12,989 INFO L93 Difference]: Finished difference Result 8219 states and 27660 transitions. [2022-03-03 20:30:12,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-03 20:30:12,989 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:30:12,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:30:13,007 INFO L225 Difference]: With dead ends: 8219 [2022-03-03 20:30:13,007 INFO L226 Difference]: Without dead ends: 8119 [2022-03-03 20:30:13,008 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1052 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=333, Invalid=3699, Unknown=0, NotChecked=0, Total=4032 [2022-03-03 20:30:13,008 INFO L933 BasicCegarLoop]: 217 mSDtfsCounter, 423 mSDsluCounter, 2403 mSDsCounter, 0 mSdLazyCounter, 2763 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 423 SdHoareTripleChecker+Valid, 2297 SdHoareTripleChecker+Invalid, 2849 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 2763 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 20:30:13,008 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [423 Valid, 2297 Invalid, 2849 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 2763 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 20:30:13,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8119 states. [2022-03-03 20:30:13,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8119 to 5575. [2022-03-03 20:30:13,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5575 states, 5574 states have (on average 3.3850017940437747) internal successors, (18868), 5574 states have internal predecessors, (18868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:13,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5575 states to 5575 states and 18868 transitions. [2022-03-03 20:30:13,130 INFO L78 Accepts]: Start accepts. Automaton has 5575 states and 18868 transitions. Word has length 39 [2022-03-03 20:30:13,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:30:13,131 INFO L470 AbstractCegarLoop]: Abstraction has 5575 states and 18868 transitions. [2022-03-03 20:30:13,131 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:13,131 INFO L276 IsEmpty]: Start isEmpty. Operand 5575 states and 18868 transitions. [2022-03-03 20:30:13,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:30:13,139 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:30:13,139 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:30:13,139 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable488 [2022-03-03 20:30:13,139 INFO L402 AbstractCegarLoop]: === Iteration 490 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:30:13,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:30:13,139 INFO L85 PathProgramCache]: Analyzing trace with hash -136588134, now seen corresponding path program 490 times [2022-03-03 20:30:13,139 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:30:13,140 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322121568] [2022-03-03 20:30:13,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:30:13,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:30:13,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:30:13,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:30:13,363 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:30:13,363 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322121568] [2022-03-03 20:30:13,363 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322121568] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:30:13,363 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:30:13,363 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:30:13,363 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223109686] [2022-03-03 20:30:13,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:30:13,363 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:30:13,363 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:30:13,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:30:13,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:30:13,363 INFO L87 Difference]: Start difference. First operand 5575 states and 18868 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:14,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:30:14,572 INFO L93 Difference]: Finished difference Result 6136 states and 20339 transitions. [2022-03-03 20:30:14,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-03-03 20:30:14,572 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:30:14,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:30:14,584 INFO L225 Difference]: With dead ends: 6136 [2022-03-03 20:30:14,584 INFO L226 Difference]: Without dead ends: 6081 [2022-03-03 20:30:14,585 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 801 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=319, Invalid=2987, Unknown=0, NotChecked=0, Total=3306 [2022-03-03 20:30:14,585 INFO L933 BasicCegarLoop]: 101 mSDtfsCounter, 300 mSDsluCounter, 1294 mSDsCounter, 0 mSdLazyCounter, 1819 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 1041 SdHoareTripleChecker+Invalid, 1885 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 1819 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:30:14,585 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [300 Valid, 1041 Invalid, 1885 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 1819 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:30:14,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6081 states. [2022-03-03 20:30:14,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6081 to 5585. [2022-03-03 20:30:14,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5585 states, 5584 states have (on average 3.383058739255014) internal successors, (18891), 5584 states have internal predecessors, (18891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:14,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5585 states to 5585 states and 18891 transitions. [2022-03-03 20:30:14,657 INFO L78 Accepts]: Start accepts. Automaton has 5585 states and 18891 transitions. Word has length 39 [2022-03-03 20:30:14,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:30:14,657 INFO L470 AbstractCegarLoop]: Abstraction has 5585 states and 18891 transitions. [2022-03-03 20:30:14,657 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:14,657 INFO L276 IsEmpty]: Start isEmpty. Operand 5585 states and 18891 transitions. [2022-03-03 20:30:14,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:30:14,664 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:30:14,664 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:30:14,664 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable489 [2022-03-03 20:30:14,664 INFO L402 AbstractCegarLoop]: === Iteration 491 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:30:14,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:30:14,665 INFO L85 PathProgramCache]: Analyzing trace with hash 1036064088, now seen corresponding path program 491 times [2022-03-03 20:30:14,665 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:30:14,665 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857985276] [2022-03-03 20:30:14,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:30:14,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:30:14,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:30:14,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:30:14,842 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:30:14,842 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857985276] [2022-03-03 20:30:14,842 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857985276] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:30:14,842 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:30:14,842 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:30:14,842 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988903872] [2022-03-03 20:30:14,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:30:14,842 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:30:14,842 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:30:14,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:30:14,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:30:14,843 INFO L87 Difference]: Start difference. First operand 5585 states and 18891 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:15,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:30:15,934 INFO L93 Difference]: Finished difference Result 6135 states and 20326 transitions. [2022-03-03 20:30:15,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-03 20:30:15,934 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:30:15,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:30:15,947 INFO L225 Difference]: With dead ends: 6135 [2022-03-03 20:30:15,947 INFO L226 Difference]: Without dead ends: 6075 [2022-03-03 20:30:15,947 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 613 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=273, Invalid=2483, Unknown=0, NotChecked=0, Total=2756 [2022-03-03 20:30:15,948 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 274 mSDsluCounter, 1288 mSDsCounter, 0 mSdLazyCounter, 1732 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 1037 SdHoareTripleChecker+Invalid, 1784 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 1732 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:30:15,948 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [274 Valid, 1037 Invalid, 1784 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 1732 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:30:16,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6075 states. [2022-03-03 20:30:16,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6075 to 5591. [2022-03-03 20:30:16,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5591 states, 5590 states have (on average 3.382289803220036) internal successors, (18907), 5590 states have internal predecessors, (18907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:16,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5591 states to 5591 states and 18907 transitions. [2022-03-03 20:30:16,070 INFO L78 Accepts]: Start accepts. Automaton has 5591 states and 18907 transitions. Word has length 39 [2022-03-03 20:30:16,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:30:16,070 INFO L470 AbstractCegarLoop]: Abstraction has 5591 states and 18907 transitions. [2022-03-03 20:30:16,070 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:16,070 INFO L276 IsEmpty]: Start isEmpty. Operand 5591 states and 18907 transitions. [2022-03-03 20:30:16,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:30:16,078 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:30:16,078 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:30:16,078 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable490 [2022-03-03 20:30:16,078 INFO L402 AbstractCegarLoop]: === Iteration 492 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:30:16,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:30:16,079 INFO L85 PathProgramCache]: Analyzing trace with hash 968319208, now seen corresponding path program 492 times [2022-03-03 20:30:16,079 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:30:16,079 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601967989] [2022-03-03 20:30:16,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:30:16,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:30:16,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:30:16,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:30:16,294 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:30:16,294 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601967989] [2022-03-03 20:30:16,294 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601967989] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:30:16,294 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:30:16,294 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:30:16,294 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398782254] [2022-03-03 20:30:16,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:30:16,294 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:30:16,294 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:30:16,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:30:16,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:30:16,295 INFO L87 Difference]: Start difference. First operand 5591 states and 18907 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:17,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:30:17,315 INFO L93 Difference]: Finished difference Result 6073 states and 20183 transitions. [2022-03-03 20:30:17,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-03 20:30:17,315 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:30:17,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:30:17,326 INFO L225 Difference]: With dead ends: 6073 [2022-03-03 20:30:17,326 INFO L226 Difference]: Without dead ends: 6030 [2022-03-03 20:30:17,326 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 575 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=251, Invalid=2401, Unknown=0, NotChecked=0, Total=2652 [2022-03-03 20:30:17,326 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 288 mSDsluCounter, 1265 mSDsCounter, 0 mSdLazyCounter, 1759 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 1008 SdHoareTripleChecker+Invalid, 1806 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 1759 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:30:17,326 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [288 Valid, 1008 Invalid, 1806 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 1759 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:30:17,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6030 states. [2022-03-03 20:30:17,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6030 to 5597. [2022-03-03 20:30:17,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5597 states, 5596 states have (on average 3.380986418870622) internal successors, (18920), 5596 states have internal predecessors, (18920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:17,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5597 states to 5597 states and 18920 transitions. [2022-03-03 20:30:17,397 INFO L78 Accepts]: Start accepts. Automaton has 5597 states and 18920 transitions. Word has length 39 [2022-03-03 20:30:17,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:30:17,397 INFO L470 AbstractCegarLoop]: Abstraction has 5597 states and 18920 transitions. [2022-03-03 20:30:17,397 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:17,397 INFO L276 IsEmpty]: Start isEmpty. Operand 5597 states and 18920 transitions. [2022-03-03 20:30:17,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:30:17,404 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:30:17,404 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:30:17,404 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable491 [2022-03-03 20:30:17,404 INFO L402 AbstractCegarLoop]: === Iteration 493 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:30:17,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:30:17,404 INFO L85 PathProgramCache]: Analyzing trace with hash -1576540952, now seen corresponding path program 493 times [2022-03-03 20:30:17,404 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:30:17,404 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587269739] [2022-03-03 20:30:17,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:30:17,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:30:17,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:30:17,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:30:17,621 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:30:17,621 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587269739] [2022-03-03 20:30:17,621 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587269739] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:30:17,621 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:30:17,621 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:30:17,621 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286275854] [2022-03-03 20:30:17,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:30:17,622 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:30:17,622 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:30:17,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:30:17,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:30:17,622 INFO L87 Difference]: Start difference. First operand 5597 states and 18920 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:18,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:30:18,649 INFO L93 Difference]: Finished difference Result 6032 states and 20097 transitions. [2022-03-03 20:30:18,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 20:30:18,649 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:30:18,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:30:18,660 INFO L225 Difference]: With dead ends: 6032 [2022-03-03 20:30:18,660 INFO L226 Difference]: Without dead ends: 5981 [2022-03-03 20:30:18,660 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 419 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=213, Invalid=1949, Unknown=0, NotChecked=0, Total=2162 [2022-03-03 20:30:18,661 INFO L933 BasicCegarLoop]: 90 mSDtfsCounter, 243 mSDsluCounter, 1171 mSDsCounter, 0 mSdLazyCounter, 1687 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 909 SdHoareTripleChecker+Invalid, 1728 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1687 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:30:18,661 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [243 Valid, 909 Invalid, 1728 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1687 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:30:18,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5981 states. [2022-03-03 20:30:18,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5981 to 5597. [2022-03-03 20:30:18,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5597 states, 5596 states have (on average 3.3804503216583273) internal successors, (18917), 5596 states have internal predecessors, (18917), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:18,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5597 states to 5597 states and 18917 transitions. [2022-03-03 20:30:18,768 INFO L78 Accepts]: Start accepts. Automaton has 5597 states and 18917 transitions. Word has length 39 [2022-03-03 20:30:18,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:30:18,768 INFO L470 AbstractCegarLoop]: Abstraction has 5597 states and 18917 transitions. [2022-03-03 20:30:18,768 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:18,768 INFO L276 IsEmpty]: Start isEmpty. Operand 5597 states and 18917 transitions. [2022-03-03 20:30:18,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:30:18,776 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:30:18,776 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:30:18,776 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable492 [2022-03-03 20:30:18,776 INFO L402 AbstractCegarLoop]: === Iteration 494 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:30:18,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:30:18,777 INFO L85 PathProgramCache]: Analyzing trace with hash -959322550, now seen corresponding path program 494 times [2022-03-03 20:30:18,777 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:30:18,777 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279869044] [2022-03-03 20:30:18,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:30:18,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:30:18,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:30:18,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:30:18,963 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:30:18,963 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279869044] [2022-03-03 20:30:18,963 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279869044] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:30:18,963 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:30:18,963 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:30:18,963 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516129027] [2022-03-03 20:30:18,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:30:18,963 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:30:18,963 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:30:18,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:30:18,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:30:18,964 INFO L87 Difference]: Start difference. First operand 5597 states and 18917 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:20,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:30:20,012 INFO L93 Difference]: Finished difference Result 6061 states and 20142 transitions. [2022-03-03 20:30:20,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-03-03 20:30:20,012 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:30:20,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:30:20,023 INFO L225 Difference]: With dead ends: 6061 [2022-03-03 20:30:20,023 INFO L226 Difference]: Without dead ends: 6015 [2022-03-03 20:30:20,024 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 446 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=220, Invalid=2036, Unknown=0, NotChecked=0, Total=2256 [2022-03-03 20:30:20,024 INFO L933 BasicCegarLoop]: 96 mSDtfsCounter, 258 mSDsluCounter, 1241 mSDsCounter, 0 mSdLazyCounter, 1693 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 985 SdHoareTripleChecker+Invalid, 1733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1693 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:30:20,024 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [258 Valid, 985 Invalid, 1733 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1693 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:30:20,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6015 states. [2022-03-03 20:30:20,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6015 to 5604. [2022-03-03 20:30:20,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5604 states, 5603 states have (on average 3.378904158486525) internal successors, (18932), 5603 states have internal predecessors, (18932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:20,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5604 states to 5604 states and 18932 transitions. [2022-03-03 20:30:20,093 INFO L78 Accepts]: Start accepts. Automaton has 5604 states and 18932 transitions. Word has length 39 [2022-03-03 20:30:20,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:30:20,093 INFO L470 AbstractCegarLoop]: Abstraction has 5604 states and 18932 transitions. [2022-03-03 20:30:20,093 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:20,094 INFO L276 IsEmpty]: Start isEmpty. Operand 5604 states and 18932 transitions. [2022-03-03 20:30:20,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:30:20,100 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:30:20,100 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:30:20,100 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable493 [2022-03-03 20:30:20,101 INFO L402 AbstractCegarLoop]: === Iteration 495 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:30:20,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:30:20,101 INFO L85 PathProgramCache]: Analyzing trace with hash 1900577256, now seen corresponding path program 495 times [2022-03-03 20:30:20,101 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:30:20,101 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898664315] [2022-03-03 20:30:20,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:30:20,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:30:20,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:30:20,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:30:20,319 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:30:20,319 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898664315] [2022-03-03 20:30:20,319 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898664315] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:30:20,319 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:30:20,320 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:30:20,320 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63858888] [2022-03-03 20:30:20,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:30:20,320 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:30:20,320 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:30:20,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:30:20,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:30:20,320 INFO L87 Difference]: Start difference. First operand 5604 states and 18932 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:21,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:30:21,355 INFO L93 Difference]: Finished difference Result 6018 states and 20050 transitions. [2022-03-03 20:30:21,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 20:30:21,355 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:30:21,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:30:21,366 INFO L225 Difference]: With dead ends: 6018 [2022-03-03 20:30:21,366 INFO L226 Difference]: Without dead ends: 5963 [2022-03-03 20:30:21,366 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 419 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=213, Invalid=1949, Unknown=0, NotChecked=0, Total=2162 [2022-03-03 20:30:21,366 INFO L933 BasicCegarLoop]: 90 mSDtfsCounter, 248 mSDsluCounter, 1155 mSDsCounter, 0 mSdLazyCounter, 1664 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 906 SdHoareTripleChecker+Invalid, 1703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1664 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:30:21,366 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [248 Valid, 906 Invalid, 1703 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1664 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:30:21,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5963 states. [2022-03-03 20:30:21,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5963 to 5601. [2022-03-03 20:30:21,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5601 states, 5600 states have (on average 3.379642857142857) internal successors, (18926), 5600 states have internal predecessors, (18926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:21,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5601 states to 5601 states and 18926 transitions. [2022-03-03 20:30:21,460 INFO L78 Accepts]: Start accepts. Automaton has 5601 states and 18926 transitions. Word has length 39 [2022-03-03 20:30:21,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:30:21,460 INFO L470 AbstractCegarLoop]: Abstraction has 5601 states and 18926 transitions. [2022-03-03 20:30:21,460 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:21,460 INFO L276 IsEmpty]: Start isEmpty. Operand 5601 states and 18926 transitions. [2022-03-03 20:30:21,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:30:21,467 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:30:21,467 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:30:21,467 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable494 [2022-03-03 20:30:21,467 INFO L402 AbstractCegarLoop]: === Iteration 496 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:30:21,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:30:21,468 INFO L85 PathProgramCache]: Analyzing trace with hash 617874138, now seen corresponding path program 496 times [2022-03-03 20:30:21,468 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:30:21,468 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25302200] [2022-03-03 20:30:21,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:30:21,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:30:21,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:30:21,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:30:21,687 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:30:21,687 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25302200] [2022-03-03 20:30:21,687 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25302200] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:30:21,687 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:30:21,687 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:30:21,687 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559261513] [2022-03-03 20:30:21,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:30:21,687 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:30:21,687 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:30:21,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:30:21,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:30:21,687 INFO L87 Difference]: Start difference. First operand 5601 states and 18926 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:22,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:30:22,707 INFO L93 Difference]: Finished difference Result 6067 states and 20158 transitions. [2022-03-03 20:30:22,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-03 20:30:22,708 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:30:22,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:30:22,720 INFO L225 Difference]: With dead ends: 6067 [2022-03-03 20:30:22,720 INFO L226 Difference]: Without dead ends: 6016 [2022-03-03 20:30:22,720 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 451 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=223, Invalid=2033, Unknown=0, NotChecked=0, Total=2256 [2022-03-03 20:30:22,721 INFO L933 BasicCegarLoop]: 88 mSDtfsCounter, 259 mSDsluCounter, 1134 mSDsCounter, 0 mSdLazyCounter, 1640 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 888 SdHoareTripleChecker+Invalid, 1681 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1640 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:30:22,721 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [259 Valid, 888 Invalid, 1681 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1640 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:30:22,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6016 states. [2022-03-03 20:30:22,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6016 to 5603. [2022-03-03 20:30:22,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5603 states, 5602 states have (on average 3.3789717957872187) internal successors, (18929), 5602 states have internal predecessors, (18929), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:22,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5603 states to 5603 states and 18929 transitions. [2022-03-03 20:30:22,802 INFO L78 Accepts]: Start accepts. Automaton has 5603 states and 18929 transitions. Word has length 39 [2022-03-03 20:30:22,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:30:22,802 INFO L470 AbstractCegarLoop]: Abstraction has 5603 states and 18929 transitions. [2022-03-03 20:30:22,802 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:22,802 INFO L276 IsEmpty]: Start isEmpty. Operand 5603 states and 18929 transitions. [2022-03-03 20:30:22,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:30:22,810 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:30:22,810 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:30:22,810 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable495 [2022-03-03 20:30:22,810 INFO L402 AbstractCegarLoop]: === Iteration 497 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:30:22,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:30:22,810 INFO L85 PathProgramCache]: Analyzing trace with hash -765777768, now seen corresponding path program 497 times [2022-03-03 20:30:22,810 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:30:22,810 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520003725] [2022-03-03 20:30:22,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:30:22,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:30:22,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:30:23,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:30:23,014 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:30:23,014 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520003725] [2022-03-03 20:30:23,014 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520003725] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:30:23,015 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:30:23,015 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:30:23,015 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503658593] [2022-03-03 20:30:23,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:30:23,015 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:30:23,015 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:30:23,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:30:23,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:30:23,015 INFO L87 Difference]: Start difference. First operand 5603 states and 18929 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:25,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:30:25,677 INFO L93 Difference]: Finished difference Result 8299 states and 27822 transitions. [2022-03-03 20:30:25,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2022-03-03 20:30:25,678 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:30:25,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:30:25,693 INFO L225 Difference]: With dead ends: 8299 [2022-03-03 20:30:25,693 INFO L226 Difference]: Without dead ends: 8236 [2022-03-03 20:30:25,694 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2971 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=682, Invalid=8438, Unknown=0, NotChecked=0, Total=9120 [2022-03-03 20:30:25,694 INFO L933 BasicCegarLoop]: 190 mSDtfsCounter, 510 mSDsluCounter, 2335 mSDsCounter, 0 mSdLazyCounter, 3146 mSolverCounterSat, 167 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 510 SdHoareTripleChecker+Valid, 2136 SdHoareTripleChecker+Invalid, 3313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 167 IncrementalHoareTripleChecker+Valid, 3146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-03 20:30:25,694 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [510 Valid, 2136 Invalid, 3313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [167 Valid, 3146 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-03 20:30:25,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8236 states. [2022-03-03 20:30:25,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8236 to 5618. [2022-03-03 20:30:25,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5618 states, 5617 states have (on average 3.380630229659961) internal successors, (18989), 5617 states have internal predecessors, (18989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:25,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5618 states to 5618 states and 18989 transitions. [2022-03-03 20:30:25,775 INFO L78 Accepts]: Start accepts. Automaton has 5618 states and 18989 transitions. Word has length 39 [2022-03-03 20:30:25,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:30:25,775 INFO L470 AbstractCegarLoop]: Abstraction has 5618 states and 18989 transitions. [2022-03-03 20:30:25,775 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:25,775 INFO L276 IsEmpty]: Start isEmpty. Operand 5618 states and 18989 transitions. [2022-03-03 20:30:25,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:30:25,782 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:30:25,782 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:30:25,782 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable496 [2022-03-03 20:30:25,782 INFO L402 AbstractCegarLoop]: === Iteration 498 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:30:25,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:30:25,782 INFO L85 PathProgramCache]: Analyzing trace with hash -1099604042, now seen corresponding path program 498 times [2022-03-03 20:30:25,782 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:30:25,782 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550163064] [2022-03-03 20:30:25,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:30:25,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:30:25,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:30:25,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:30:25,997 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:30:25,997 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550163064] [2022-03-03 20:30:25,997 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550163064] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:30:25,997 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:30:25,997 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:30:25,998 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728367666] [2022-03-03 20:30:25,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:30:25,998 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:30:25,998 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:30:25,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:30:25,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:30:25,998 INFO L87 Difference]: Start difference. First operand 5618 states and 18989 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:27,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:30:27,051 INFO L93 Difference]: Finished difference Result 6101 states and 20263 transitions. [2022-03-03 20:30:27,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-03-03 20:30:27,051 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:30:27,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:30:27,062 INFO L225 Difference]: With dead ends: 6101 [2022-03-03 20:30:27,062 INFO L226 Difference]: Without dead ends: 6042 [2022-03-03 20:30:27,063 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 482 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=232, Invalid=2120, Unknown=0, NotChecked=0, Total=2352 [2022-03-03 20:30:27,063 INFO L933 BasicCegarLoop]: 91 mSDtfsCounter, 253 mSDsluCounter, 1174 mSDsCounter, 0 mSdLazyCounter, 1650 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 928 SdHoareTripleChecker+Invalid, 1694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 1650 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:30:27,063 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [253 Valid, 928 Invalid, 1694 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 1650 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:30:27,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6042 states. [2022-03-03 20:30:27,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6042 to 5617. [2022-03-03 20:30:27,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5617 states, 5616 states have (on average 3.3808760683760686) internal successors, (18987), 5616 states have internal predecessors, (18987), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:27,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5617 states to 5617 states and 18987 transitions. [2022-03-03 20:30:27,137 INFO L78 Accepts]: Start accepts. Automaton has 5617 states and 18987 transitions. Word has length 39 [2022-03-03 20:30:27,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:30:27,137 INFO L470 AbstractCegarLoop]: Abstraction has 5617 states and 18987 transitions. [2022-03-03 20:30:27,137 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:27,137 INFO L276 IsEmpty]: Start isEmpty. Operand 5617 states and 18987 transitions. [2022-03-03 20:30:27,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:30:27,144 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:30:27,144 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:30:27,145 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable497 [2022-03-03 20:30:27,145 INFO L402 AbstractCegarLoop]: === Iteration 499 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:30:27,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:30:27,145 INFO L85 PathProgramCache]: Analyzing trace with hash 1956630726, now seen corresponding path program 499 times [2022-03-03 20:30:27,145 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:30:27,145 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844585846] [2022-03-03 20:30:27,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:30:27,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:30:27,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:30:27,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:30:27,367 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:30:27,367 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844585846] [2022-03-03 20:30:27,367 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844585846] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:30:27,367 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:30:27,367 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:30:27,368 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374820417] [2022-03-03 20:30:27,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:30:27,368 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:30:27,368 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:30:27,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:30:27,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:30:27,368 INFO L87 Difference]: Start difference. First operand 5617 states and 18987 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:28,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:30:28,343 INFO L93 Difference]: Finished difference Result 5945 states and 19893 transitions. [2022-03-03 20:30:28,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-03 20:30:28,343 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:30:28,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:30:28,353 INFO L225 Difference]: With dead ends: 5945 [2022-03-03 20:30:28,354 INFO L226 Difference]: Without dead ends: 5894 [2022-03-03 20:30:28,354 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 365 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=194, Invalid=1786, Unknown=0, NotChecked=0, Total=1980 [2022-03-03 20:30:28,354 INFO L933 BasicCegarLoop]: 90 mSDtfsCounter, 232 mSDsluCounter, 1135 mSDsCounter, 0 mSdLazyCounter, 1585 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 905 SdHoareTripleChecker+Invalid, 1618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1585 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:30:28,354 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [232 Valid, 905 Invalid, 1618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1585 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:30:28,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5894 states. [2022-03-03 20:30:28,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5894 to 5611. [2022-03-03 20:30:28,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5611 states, 5610 states have (on average 3.381818181818182) internal successors, (18972), 5610 states have internal predecessors, (18972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:28,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5611 states to 5611 states and 18972 transitions. [2022-03-03 20:30:28,421 INFO L78 Accepts]: Start accepts. Automaton has 5611 states and 18972 transitions. Word has length 39 [2022-03-03 20:30:28,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:30:28,422 INFO L470 AbstractCegarLoop]: Abstraction has 5611 states and 18972 transitions. [2022-03-03 20:30:28,422 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:28,422 INFO L276 IsEmpty]: Start isEmpty. Operand 5611 states and 18972 transitions. [2022-03-03 20:30:28,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:30:28,429 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:30:28,429 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:30:28,429 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable498 [2022-03-03 20:30:28,429 INFO L402 AbstractCegarLoop]: === Iteration 500 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:30:28,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:30:28,429 INFO L85 PathProgramCache]: Analyzing trace with hash 572978820, now seen corresponding path program 500 times [2022-03-03 20:30:28,429 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:30:28,429 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803701758] [2022-03-03 20:30:28,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:30:28,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:30:28,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:30:28,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:30:28,647 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:30:28,647 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803701758] [2022-03-03 20:30:28,647 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803701758] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:30:28,647 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:30:28,647 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:30:28,647 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65770642] [2022-03-03 20:30:28,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:30:28,647 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:30:28,647 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:30:28,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:30:28,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:30:28,647 INFO L87 Difference]: Start difference. First operand 5611 states and 18972 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:30,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:30:30,518 INFO L93 Difference]: Finished difference Result 6906 states and 23057 transitions. [2022-03-03 20:30:30,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2022-03-03 20:30:30,518 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:30:30,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:30:30,531 INFO L225 Difference]: With dead ends: 6906 [2022-03-03 20:30:30,531 INFO L226 Difference]: Without dead ends: 6843 [2022-03-03 20:30:30,532 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1381 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=399, Invalid=4571, Unknown=0, NotChecked=0, Total=4970 [2022-03-03 20:30:30,532 INFO L933 BasicCegarLoop]: 147 mSDtfsCounter, 365 mSDsluCounter, 1798 mSDsCounter, 0 mSdLazyCounter, 2500 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 365 SdHoareTripleChecker+Valid, 1589 SdHoareTripleChecker+Invalid, 2598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 2500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 20:30:30,532 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [365 Valid, 1589 Invalid, 2598 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 2500 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 20:30:30,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6843 states. [2022-03-03 20:30:30,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6843 to 5618. [2022-03-03 20:30:30,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5618 states, 5617 states have (on average 3.3825885704112517) internal successors, (19000), 5617 states have internal predecessors, (19000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:30,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5618 states to 5618 states and 19000 transitions. [2022-03-03 20:30:30,611 INFO L78 Accepts]: Start accepts. Automaton has 5618 states and 19000 transitions. Word has length 39 [2022-03-03 20:30:30,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:30:30,611 INFO L470 AbstractCegarLoop]: Abstraction has 5618 states and 19000 transitions. [2022-03-03 20:30:30,611 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:30,611 INFO L276 IsEmpty]: Start isEmpty. Operand 5618 states and 19000 transitions. [2022-03-03 20:30:30,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:30:30,618 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:30:30,618 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:30:30,618 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable499 [2022-03-03 20:30:30,618 INFO L402 AbstractCegarLoop]: === Iteration 501 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:30:30,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:30:30,618 INFO L85 PathProgramCache]: Analyzing trace with hash 903448390, now seen corresponding path program 501 times [2022-03-03 20:30:30,619 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:30:30,619 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755869814] [2022-03-03 20:30:30,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:30:30,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:30:30,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:30:30,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:30:30,859 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:30:30,859 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755869814] [2022-03-03 20:30:30,859 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755869814] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:30:30,859 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:30:30,859 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:30:30,859 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91572879] [2022-03-03 20:30:30,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:30:30,859 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:30:30,860 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:30:30,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:30:30,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:30:30,860 INFO L87 Difference]: Start difference. First operand 5618 states and 19000 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:33,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:30:33,205 INFO L93 Difference]: Finished difference Result 6973 states and 23327 transitions. [2022-03-03 20:30:33,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2022-03-03 20:30:33,206 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:30:33,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:30:33,220 INFO L225 Difference]: With dead ends: 6973 [2022-03-03 20:30:33,221 INFO L226 Difference]: Without dead ends: 6858 [2022-03-03 20:30:33,221 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2263 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=608, Invalid=6702, Unknown=0, NotChecked=0, Total=7310 [2022-03-03 20:30:33,222 INFO L933 BasicCegarLoop]: 165 mSDtfsCounter, 408 mSDsluCounter, 1853 mSDsCounter, 0 mSdLazyCounter, 2628 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 408 SdHoareTripleChecker+Valid, 1699 SdHoareTripleChecker+Invalid, 2749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 2628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-03 20:30:33,222 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [408 Valid, 1699 Invalid, 2749 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 2628 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-03 20:30:33,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6858 states. [2022-03-03 20:30:33,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6858 to 5606. [2022-03-03 20:30:33,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5606 states, 5605 states have (on average 3.383229259589652) internal successors, (18963), 5605 states have internal predecessors, (18963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:33,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5606 states to 5606 states and 18963 transitions. [2022-03-03 20:30:33,307 INFO L78 Accepts]: Start accepts. Automaton has 5606 states and 18963 transitions. Word has length 39 [2022-03-03 20:30:33,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:30:33,307 INFO L470 AbstractCegarLoop]: Abstraction has 5606 states and 18963 transitions. [2022-03-03 20:30:33,308 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:33,308 INFO L276 IsEmpty]: Start isEmpty. Operand 5606 states and 18963 transitions. [2022-03-03 20:30:33,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:30:33,314 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:30:33,314 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:30:33,315 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable500 [2022-03-03 20:30:33,315 INFO L402 AbstractCegarLoop]: === Iteration 502 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:30:33,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:30:33,315 INFO L85 PathProgramCache]: Analyzing trace with hash 2120377542, now seen corresponding path program 502 times [2022-03-03 20:30:33,315 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:30:33,315 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517169849] [2022-03-03 20:30:33,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:30:33,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:30:33,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:30:33,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:30:33,535 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:30:33,535 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517169849] [2022-03-03 20:30:33,536 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517169849] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:30:33,536 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:30:33,536 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:30:33,536 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358328874] [2022-03-03 20:30:33,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:30:33,536 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:30:33,536 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:30:33,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:30:33,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:30:33,536 INFO L87 Difference]: Start difference. First operand 5606 states and 18963 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:34,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:30:34,549 INFO L93 Difference]: Finished difference Result 5942 states and 19893 transitions. [2022-03-03 20:30:34,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-03 20:30:34,549 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:30:34,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:30:34,559 INFO L225 Difference]: With dead ends: 5942 [2022-03-03 20:30:34,559 INFO L226 Difference]: Without dead ends: 5855 [2022-03-03 20:30:34,559 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 392 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=203, Invalid=1867, Unknown=0, NotChecked=0, Total=2070 [2022-03-03 20:30:34,559 INFO L933 BasicCegarLoop]: 96 mSDtfsCounter, 234 mSDsluCounter, 1206 mSDsCounter, 0 mSdLazyCounter, 1629 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 968 SdHoareTripleChecker+Invalid, 1662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:30:34,559 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [234 Valid, 968 Invalid, 1662 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1629 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:30:34,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5855 states. [2022-03-03 20:30:34,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5855 to 5580. [2022-03-03 20:30:34,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5580 states, 5579 states have (on average 3.38913783832228) internal successors, (18908), 5579 states have internal predecessors, (18908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:34,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5580 states to 5580 states and 18908 transitions. [2022-03-03 20:30:34,623 INFO L78 Accepts]: Start accepts. Automaton has 5580 states and 18908 transitions. Word has length 39 [2022-03-03 20:30:34,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:30:34,623 INFO L470 AbstractCegarLoop]: Abstraction has 5580 states and 18908 transitions. [2022-03-03 20:30:34,623 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:34,624 INFO L276 IsEmpty]: Start isEmpty. Operand 5580 states and 18908 transitions. [2022-03-03 20:30:34,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:30:34,630 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:30:34,630 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:30:34,631 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable501 [2022-03-03 20:30:34,631 INFO L402 AbstractCegarLoop]: === Iteration 503 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:30:34,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:30:34,631 INFO L85 PathProgramCache]: Analyzing trace with hash 455329048, now seen corresponding path program 503 times [2022-03-03 20:30:34,631 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:30:34,631 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130542688] [2022-03-03 20:30:34,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:30:34,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:30:34,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:30:34,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:30:34,847 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:30:34,847 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130542688] [2022-03-03 20:30:34,847 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130542688] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:30:34,847 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:30:34,847 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:30:34,847 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791860704] [2022-03-03 20:30:34,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:30:34,847 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:30:34,847 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:30:34,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:30:34,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:30:34,848 INFO L87 Difference]: Start difference. First operand 5580 states and 18908 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:35,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:30:35,756 INFO L93 Difference]: Finished difference Result 5831 states and 19646 transitions. [2022-03-03 20:30:35,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-03-03 20:30:35,756 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:30:35,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:30:35,766 INFO L225 Difference]: With dead ends: 5831 [2022-03-03 20:30:35,766 INFO L226 Difference]: Without dead ends: 5724 [2022-03-03 20:30:35,767 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 338 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=194, Invalid=1698, Unknown=0, NotChecked=0, Total=1892 [2022-03-03 20:30:35,767 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 194 mSDsluCounter, 1153 mSDsCounter, 0 mSdLazyCounter, 1545 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 942 SdHoareTripleChecker+Invalid, 1571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1545 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:30:35,767 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [194 Valid, 942 Invalid, 1571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1545 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:30:35,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5724 states. [2022-03-03 20:30:35,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5724 to 5540. [2022-03-03 20:30:35,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5540 states, 5539 states have (on average 3.392670157068063) internal successors, (18792), 5539 states have internal predecessors, (18792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:35,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5540 states to 5540 states and 18792 transitions. [2022-03-03 20:30:35,836 INFO L78 Accepts]: Start accepts. Automaton has 5540 states and 18792 transitions. Word has length 39 [2022-03-03 20:30:35,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:30:35,836 INFO L470 AbstractCegarLoop]: Abstraction has 5540 states and 18792 transitions. [2022-03-03 20:30:35,836 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:35,836 INFO L276 IsEmpty]: Start isEmpty. Operand 5540 states and 18792 transitions. [2022-03-03 20:30:35,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:30:35,843 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:30:35,843 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:30:35,843 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable502 [2022-03-03 20:30:35,843 INFO L402 AbstractCegarLoop]: === Iteration 504 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:30:35,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:30:35,843 INFO L85 PathProgramCache]: Analyzing trace with hash 1709382262, now seen corresponding path program 504 times [2022-03-03 20:30:35,844 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:30:35,844 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911109287] [2022-03-03 20:30:35,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:30:35,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:30:35,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:30:36,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:30:36,062 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:30:36,062 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911109287] [2022-03-03 20:30:36,062 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911109287] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:30:36,062 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:30:36,062 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:30:36,062 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538744160] [2022-03-03 20:30:36,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:30:36,062 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:30:36,062 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:30:36,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:30:36,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:30:36,063 INFO L87 Difference]: Start difference. First operand 5540 states and 18792 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:37,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:30:37,012 INFO L93 Difference]: Finished difference Result 5821 states and 19613 transitions. [2022-03-03 20:30:37,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 20:30:37,012 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:30:37,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:30:37,023 INFO L225 Difference]: With dead ends: 5821 [2022-03-03 20:30:37,023 INFO L226 Difference]: Without dead ends: 5754 [2022-03-03 20:30:37,023 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 388 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=218, Invalid=1852, Unknown=0, NotChecked=0, Total=2070 [2022-03-03 20:30:37,023 INFO L933 BasicCegarLoop]: 93 mSDtfsCounter, 201 mSDsluCounter, 1123 mSDsCounter, 0 mSdLazyCounter, 1544 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 908 SdHoareTripleChecker+Invalid, 1574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1544 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:30:37,023 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [201 Valid, 908 Invalid, 1574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1544 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:30:37,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5754 states. [2022-03-03 20:30:37,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5754 to 5544. [2022-03-03 20:30:37,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5544 states, 5543 states have (on average 3.392747609597691) internal successors, (18806), 5543 states have internal predecessors, (18806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:37,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5544 states to 5544 states and 18806 transitions. [2022-03-03 20:30:37,115 INFO L78 Accepts]: Start accepts. Automaton has 5544 states and 18806 transitions. Word has length 39 [2022-03-03 20:30:37,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:30:37,115 INFO L470 AbstractCegarLoop]: Abstraction has 5544 states and 18806 transitions. [2022-03-03 20:30:37,116 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:37,116 INFO L276 IsEmpty]: Start isEmpty. Operand 5544 states and 18806 transitions. [2022-03-03 20:30:37,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:30:37,123 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:30:37,123 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:30:37,123 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable503 [2022-03-03 20:30:37,123 INFO L402 AbstractCegarLoop]: === Iteration 505 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:30:37,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:30:37,123 INFO L85 PathProgramCache]: Analyzing trace with hash 1537239044, now seen corresponding path program 505 times [2022-03-03 20:30:37,123 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:30:37,123 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935108900] [2022-03-03 20:30:37,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:30:37,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:30:37,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:30:37,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:30:37,339 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:30:37,339 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935108900] [2022-03-03 20:30:37,339 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935108900] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:30:37,339 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:30:37,339 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:30:37,340 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682736101] [2022-03-03 20:30:37,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:30:37,340 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:30:37,340 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:30:37,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:30:37,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:30:37,340 INFO L87 Difference]: Start difference. First operand 5544 states and 18806 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:38,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:30:38,306 INFO L93 Difference]: Finished difference Result 5842 states and 19639 transitions. [2022-03-03 20:30:38,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-03-03 20:30:38,307 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:30:38,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:30:38,317 INFO L225 Difference]: With dead ends: 5842 [2022-03-03 20:30:38,317 INFO L226 Difference]: Without dead ends: 5779 [2022-03-03 20:30:38,318 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 418 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=221, Invalid=1941, Unknown=0, NotChecked=0, Total=2162 [2022-03-03 20:30:38,318 INFO L933 BasicCegarLoop]: 93 mSDtfsCounter, 214 mSDsluCounter, 1151 mSDsCounter, 0 mSdLazyCounter, 1548 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 934 SdHoareTripleChecker+Invalid, 1583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:30:38,318 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [214 Valid, 934 Invalid, 1583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1548 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:30:38,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5779 states. [2022-03-03 20:30:38,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5779 to 5544. [2022-03-03 20:30:38,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5544 states, 5543 states have (on average 3.3920259787118887) internal successors, (18802), 5543 states have internal predecessors, (18802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:38,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5544 states to 5544 states and 18802 transitions. [2022-03-03 20:30:38,385 INFO L78 Accepts]: Start accepts. Automaton has 5544 states and 18802 transitions. Word has length 39 [2022-03-03 20:30:38,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:30:38,385 INFO L470 AbstractCegarLoop]: Abstraction has 5544 states and 18802 transitions. [2022-03-03 20:30:38,385 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:38,386 INFO L276 IsEmpty]: Start isEmpty. Operand 5544 states and 18802 transitions. [2022-03-03 20:30:38,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:30:38,392 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:30:38,393 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:30:38,393 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable504 [2022-03-03 20:30:38,393 INFO L402 AbstractCegarLoop]: === Iteration 506 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:30:38,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:30:38,393 INFO L85 PathProgramCache]: Analyzing trace with hash -1816993064, now seen corresponding path program 506 times [2022-03-03 20:30:38,393 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:30:38,393 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980256887] [2022-03-03 20:30:38,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:30:38,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:30:38,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:30:38,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:30:38,611 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:30:38,611 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980256887] [2022-03-03 20:30:38,611 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980256887] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:30:38,611 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:30:38,611 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:30:38,611 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770814448] [2022-03-03 20:30:38,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:30:38,611 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:30:38,611 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:30:38,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:30:38,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:30:38,611 INFO L87 Difference]: Start difference. First operand 5544 states and 18802 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:39,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:30:39,508 INFO L93 Difference]: Finished difference Result 5773 states and 19477 transitions. [2022-03-03 20:30:39,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-03-03 20:30:39,509 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:30:39,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:30:39,519 INFO L225 Difference]: With dead ends: 5773 [2022-03-03 20:30:39,519 INFO L226 Difference]: Without dead ends: 5706 [2022-03-03 20:30:39,519 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 310 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=187, Invalid=1619, Unknown=0, NotChecked=0, Total=1806 [2022-03-03 20:30:39,519 INFO L933 BasicCegarLoop]: 93 mSDtfsCounter, 180 mSDsluCounter, 1112 mSDsCounter, 0 mSdLazyCounter, 1549 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 899 SdHoareTripleChecker+Invalid, 1575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1549 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:30:39,520 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [180 Valid, 899 Invalid, 1575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1549 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:30:39,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5706 states. [2022-03-03 20:30:39,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5706 to 5556. [2022-03-03 20:30:39,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5556 states, 5555 states have (on average 3.3893789378937895) internal successors, (18828), 5555 states have internal predecessors, (18828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:39,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5556 states to 5556 states and 18828 transitions. [2022-03-03 20:30:39,585 INFO L78 Accepts]: Start accepts. Automaton has 5556 states and 18828 transitions. Word has length 39 [2022-03-03 20:30:39,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:30:39,585 INFO L470 AbstractCegarLoop]: Abstraction has 5556 states and 18828 transitions. [2022-03-03 20:30:39,585 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:39,585 INFO L276 IsEmpty]: Start isEmpty. Operand 5556 states and 18828 transitions. [2022-03-03 20:30:39,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:30:39,592 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:30:39,592 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:30:39,592 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable505 [2022-03-03 20:30:39,592 INFO L402 AbstractCegarLoop]: === Iteration 507 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:30:39,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:30:39,592 INFO L85 PathProgramCache]: Analyzing trace with hash -546510986, now seen corresponding path program 507 times [2022-03-03 20:30:39,592 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:30:39,592 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057152760] [2022-03-03 20:30:39,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:30:39,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:30:39,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:30:39,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:30:39,829 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:30:39,829 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057152760] [2022-03-03 20:30:39,829 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057152760] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:30:39,829 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:30:39,829 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:30:39,829 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698137259] [2022-03-03 20:30:39,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:30:39,829 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:30:39,829 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:30:39,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:30:39,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:30:39,829 INFO L87 Difference]: Start difference. First operand 5556 states and 18828 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:40,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:30:40,721 INFO L93 Difference]: Finished difference Result 5790 states and 19491 transitions. [2022-03-03 20:30:40,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-03-03 20:30:40,722 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:30:40,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:30:40,732 INFO L225 Difference]: With dead ends: 5790 [2022-03-03 20:30:40,732 INFO L226 Difference]: Without dead ends: 5747 [2022-03-03 20:30:40,732 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 312 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=183, Invalid=1623, Unknown=0, NotChecked=0, Total=1806 [2022-03-03 20:30:40,733 INFO L933 BasicCegarLoop]: 90 mSDtfsCounter, 194 mSDsluCounter, 1125 mSDsCounter, 0 mSdLazyCounter, 1552 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 894 SdHoareTripleChecker+Invalid, 1578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1552 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:30:40,733 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [194 Valid, 894 Invalid, 1578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1552 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:30:40,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5747 states. [2022-03-03 20:30:40,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5747 to 5562. [2022-03-03 20:30:40,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5562 states, 5561 states have (on average 3.388059701492537) internal successors, (18841), 5561 states have internal predecessors, (18841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:40,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5562 states to 5562 states and 18841 transitions. [2022-03-03 20:30:40,798 INFO L78 Accepts]: Start accepts. Automaton has 5562 states and 18841 transitions. Word has length 39 [2022-03-03 20:30:40,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:30:40,798 INFO L470 AbstractCegarLoop]: Abstraction has 5562 states and 18841 transitions. [2022-03-03 20:30:40,798 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:40,798 INFO L276 IsEmpty]: Start isEmpty. Operand 5562 states and 18841 transitions. [2022-03-03 20:30:40,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:30:40,805 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:30:40,805 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:30:40,805 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable506 [2022-03-03 20:30:40,805 INFO L402 AbstractCegarLoop]: === Iteration 508 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:30:40,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:30:40,805 INFO L85 PathProgramCache]: Analyzing trace with hash 283020184, now seen corresponding path program 508 times [2022-03-03 20:30:40,806 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:30:40,806 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850376759] [2022-03-03 20:30:40,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:30:40,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:30:40,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:30:41,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:30:41,023 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:30:41,023 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850376759] [2022-03-03 20:30:41,023 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850376759] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:30:41,023 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:30:41,023 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:30:41,023 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677344210] [2022-03-03 20:30:41,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:30:41,023 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:30:41,024 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:30:41,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:30:41,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:30:41,024 INFO L87 Difference]: Start difference. First operand 5562 states and 18841 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:41,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:30:41,907 INFO L93 Difference]: Finished difference Result 5745 states and 19387 transitions. [2022-03-03 20:30:41,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-03-03 20:30:41,907 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:30:41,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:30:41,919 INFO L225 Difference]: With dead ends: 5745 [2022-03-03 20:30:41,919 INFO L226 Difference]: Without dead ends: 5682 [2022-03-03 20:30:41,919 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 287 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=174, Invalid=1548, Unknown=0, NotChecked=0, Total=1722 [2022-03-03 20:30:41,920 INFO L933 BasicCegarLoop]: 91 mSDtfsCounter, 172 mSDsluCounter, 1121 mSDsCounter, 0 mSdLazyCounter, 1545 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 894 SdHoareTripleChecker+Invalid, 1570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1545 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:30:41,920 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [172 Valid, 894 Invalid, 1570 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1545 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:30:41,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5682 states. [2022-03-03 20:30:41,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5682 to 5544. [2022-03-03 20:30:41,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5544 states, 5543 states have (on average 3.391304347826087) internal successors, (18798), 5543 states have internal predecessors, (18798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:41,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5544 states to 5544 states and 18798 transitions. [2022-03-03 20:30:41,999 INFO L78 Accepts]: Start accepts. Automaton has 5544 states and 18798 transitions. Word has length 39 [2022-03-03 20:30:41,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:30:41,999 INFO L470 AbstractCegarLoop]: Abstraction has 5544 states and 18798 transitions. [2022-03-03 20:30:41,999 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:41,999 INFO L276 IsEmpty]: Start isEmpty. Operand 5544 states and 18798 transitions. [2022-03-03 20:30:42,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:30:42,008 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:30:42,008 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:30:42,008 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable507 [2022-03-03 20:30:42,008 INFO L402 AbstractCegarLoop]: === Iteration 509 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:30:42,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:30:42,008 INFO L85 PathProgramCache]: Analyzing trace with hash 1291473766, now seen corresponding path program 509 times [2022-03-03 20:30:42,008 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:30:42,008 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058703243] [2022-03-03 20:30:42,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:30:42,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:30:42,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:30:42,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:30:42,233 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:30:42,233 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058703243] [2022-03-03 20:30:42,233 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058703243] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:30:42,233 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:30:42,233 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:30:42,233 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738463274] [2022-03-03 20:30:42,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:30:42,233 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:30:42,233 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:30:42,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:30:42,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:30:42,233 INFO L87 Difference]: Start difference. First operand 5544 states and 18798 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:43,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:30:43,015 INFO L93 Difference]: Finished difference Result 5849 states and 19630 transitions. [2022-03-03 20:30:43,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 20:30:43,015 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:30:43,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:30:43,027 INFO L225 Difference]: With dead ends: 5849 [2022-03-03 20:30:43,027 INFO L226 Difference]: Without dead ends: 5794 [2022-03-03 20:30:43,027 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 391 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=209, Invalid=1861, Unknown=0, NotChecked=0, Total=2070 [2022-03-03 20:30:43,027 INFO L933 BasicCegarLoop]: 91 mSDtfsCounter, 207 mSDsluCounter, 1135 mSDsCounter, 0 mSdLazyCounter, 1556 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 912 SdHoareTripleChecker+Invalid, 1587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1556 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 20:30:43,027 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [207 Valid, 912 Invalid, 1587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1556 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 20:30:43,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5794 states. [2022-03-03 20:30:43,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5794 to 5546. [2022-03-03 20:30:43,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5546 states, 5545 states have (on average 3.3909828674481517) internal successors, (18803), 5545 states have internal predecessors, (18803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:43,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5546 states to 5546 states and 18803 transitions. [2022-03-03 20:30:43,105 INFO L78 Accepts]: Start accepts. Automaton has 5546 states and 18803 transitions. Word has length 39 [2022-03-03 20:30:43,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:30:43,105 INFO L470 AbstractCegarLoop]: Abstraction has 5546 states and 18803 transitions. [2022-03-03 20:30:43,105 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:43,105 INFO L276 IsEmpty]: Start isEmpty. Operand 5546 states and 18803 transitions. [2022-03-03 20:30:43,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:30:43,113 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:30:43,113 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:30:43,113 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable508 [2022-03-03 20:30:43,113 INFO L402 AbstractCegarLoop]: === Iteration 510 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:30:43,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:30:43,114 INFO L85 PathProgramCache]: Analyzing trace with hash -1666435516, now seen corresponding path program 510 times [2022-03-03 20:30:43,114 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:30:43,114 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377117986] [2022-03-03 20:30:43,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:30:43,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:30:43,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:30:43,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:30:43,267 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:30:43,267 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377117986] [2022-03-03 20:30:43,267 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377117986] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:30:43,267 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:30:43,267 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:30:43,268 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820999279] [2022-03-03 20:30:43,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:30:43,268 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:30:43,268 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:30:43,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:30:43,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:30:43,268 INFO L87 Difference]: Start difference. First operand 5546 states and 18803 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:43,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:30:43,886 INFO L93 Difference]: Finished difference Result 5825 states and 19564 transitions. [2022-03-03 20:30:43,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-03 20:30:43,886 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:30:43,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:30:43,898 INFO L225 Difference]: With dead ends: 5825 [2022-03-03 20:30:43,898 INFO L226 Difference]: Without dead ends: 5782 [2022-03-03 20:30:43,898 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 312 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=185, Invalid=1621, Unknown=0, NotChecked=0, Total=1806 [2022-03-03 20:30:43,898 INFO L933 BasicCegarLoop]: 88 mSDtfsCounter, 198 mSDsluCounter, 1100 mSDsCounter, 0 mSdLazyCounter, 1525 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 880 SdHoareTripleChecker+Invalid, 1550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 20:30:43,898 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [198 Valid, 880 Invalid, 1550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1525 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 20:30:43,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5782 states. [2022-03-03 20:30:43,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5782 to 5552. [2022-03-03 20:30:43,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5552 states, 5551 states have (on average 3.389659520807062) internal successors, (18816), 5551 states have internal predecessors, (18816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:43,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5552 states to 5552 states and 18816 transitions. [2022-03-03 20:30:43,978 INFO L78 Accepts]: Start accepts. Automaton has 5552 states and 18816 transitions. Word has length 39 [2022-03-03 20:30:43,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:30:43,978 INFO L470 AbstractCegarLoop]: Abstraction has 5552 states and 18816 transitions. [2022-03-03 20:30:43,978 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:43,978 INFO L276 IsEmpty]: Start isEmpty. Operand 5552 states and 18816 transitions. [2022-03-03 20:30:43,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:30:43,986 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:30:43,986 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:30:43,986 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable509 [2022-03-03 20:30:43,986 INFO L402 AbstractCegarLoop]: === Iteration 511 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:30:43,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:30:43,989 INFO L85 PathProgramCache]: Analyzing trace with hash -1937855066, now seen corresponding path program 511 times [2022-03-03 20:30:43,993 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:30:43,993 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128716321] [2022-03-03 20:30:43,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:30:43,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:30:43,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:30:44,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:30:44,219 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:30:44,219 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128716321] [2022-03-03 20:30:44,219 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128716321] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:30:44,219 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:30:44,219 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:30:44,219 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54556739] [2022-03-03 20:30:44,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:30:44,219 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:30:44,219 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:30:44,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:30:44,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:30:44,219 INFO L87 Difference]: Start difference. First operand 5552 states and 18816 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:44,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:30:44,949 INFO L93 Difference]: Finished difference Result 5794 states and 19497 transitions. [2022-03-03 20:30:44,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-03-03 20:30:44,950 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:30:44,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:30:44,961 INFO L225 Difference]: With dead ends: 5794 [2022-03-03 20:30:44,961 INFO L226 Difference]: Without dead ends: 5743 [2022-03-03 20:30:44,961 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 288 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=176, Invalid=1546, Unknown=0, NotChecked=0, Total=1722 [2022-03-03 20:30:44,962 INFO L933 BasicCegarLoop]: 88 mSDtfsCounter, 181 mSDsluCounter, 1101 mSDsCounter, 0 mSdLazyCounter, 1524 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 882 SdHoareTripleChecker+Invalid, 1548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 20:30:44,962 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [181 Valid, 882 Invalid, 1548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1524 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 20:30:44,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5743 states. [2022-03-03 20:30:45,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5743 to 5546. [2022-03-03 20:30:45,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5546 states, 5545 states have (on average 3.3906221821460774) internal successors, (18801), 5545 states have internal predecessors, (18801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:45,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5546 states to 5546 states and 18801 transitions. [2022-03-03 20:30:45,065 INFO L78 Accepts]: Start accepts. Automaton has 5546 states and 18801 transitions. Word has length 39 [2022-03-03 20:30:45,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:30:45,065 INFO L470 AbstractCegarLoop]: Abstraction has 5546 states and 18801 transitions. [2022-03-03 20:30:45,065 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:45,065 INFO L276 IsEmpty]: Start isEmpty. Operand 5546 states and 18801 transitions. [2022-03-03 20:30:45,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:30:45,072 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:30:45,072 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:30:45,072 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable510 [2022-03-03 20:30:45,073 INFO L402 AbstractCegarLoop]: === Iteration 512 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:30:45,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:30:45,073 INFO L85 PathProgramCache]: Analyzing trace with hash 125147346, now seen corresponding path program 512 times [2022-03-03 20:30:45,073 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:30:45,073 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001062381] [2022-03-03 20:30:45,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:30:45,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:30:45,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:30:45,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:30:45,294 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:30:45,294 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001062381] [2022-03-03 20:30:45,295 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001062381] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:30:45,295 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:30:45,295 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:30:45,295 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278339463] [2022-03-03 20:30:45,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:30:45,295 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:30:45,295 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:30:45,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:30:45,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:30:45,295 INFO L87 Difference]: Start difference. First operand 5546 states and 18801 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:46,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:30:46,254 INFO L93 Difference]: Finished difference Result 6975 states and 23511 transitions. [2022-03-03 20:30:46,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-03 20:30:46,254 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:30:46,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:30:46,269 INFO L225 Difference]: With dead ends: 6975 [2022-03-03 20:30:46,269 INFO L226 Difference]: Without dead ends: 6936 [2022-03-03 20:30:46,269 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 536 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=239, Invalid=2311, Unknown=0, NotChecked=0, Total=2550 [2022-03-03 20:30:46,270 INFO L933 BasicCegarLoop]: 145 mSDtfsCounter, 309 mSDsluCounter, 1747 mSDsCounter, 0 mSdLazyCounter, 2320 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 309 SdHoareTripleChecker+Valid, 1489 SdHoareTripleChecker+Invalid, 2367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 2320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:30:46,270 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [309 Valid, 1489 Invalid, 2367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 2320 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:30:46,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6936 states. [2022-03-03 20:30:46,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6936 to 5572. [2022-03-03 20:30:46,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5572 states, 5571 states have (on average 3.39041464728056) internal successors, (18888), 5571 states have internal predecessors, (18888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:46,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5572 states to 5572 states and 18888 transitions. [2022-03-03 20:30:46,358 INFO L78 Accepts]: Start accepts. Automaton has 5572 states and 18888 transitions. Word has length 39 [2022-03-03 20:30:46,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:30:46,358 INFO L470 AbstractCegarLoop]: Abstraction has 5572 states and 18888 transitions. [2022-03-03 20:30:46,358 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:46,358 INFO L276 IsEmpty]: Start isEmpty. Operand 5572 states and 18888 transitions. [2022-03-03 20:30:46,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:30:46,366 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:30:46,366 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:30:46,366 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable511 [2022-03-03 20:30:46,367 INFO L402 AbstractCegarLoop]: === Iteration 513 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:30:46,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:30:46,367 INFO L85 PathProgramCache]: Analyzing trace with hash -1632837068, now seen corresponding path program 513 times [2022-03-03 20:30:46,367 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:30:46,367 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759021239] [2022-03-03 20:30:46,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:30:46,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:30:46,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:30:46,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:30:46,515 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:30:46,516 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759021239] [2022-03-03 20:30:46,516 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759021239] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:30:46,516 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:30:46,516 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:30:46,516 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125681774] [2022-03-03 20:30:46,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:30:46,516 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:30:46,516 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:30:46,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:30:46,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:30:46,516 INFO L87 Difference]: Start difference. First operand 5572 states and 18888 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:47,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:30:47,496 INFO L93 Difference]: Finished difference Result 6981 states and 23524 transitions. [2022-03-03 20:30:47,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-03 20:30:47,496 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:30:47,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:30:47,511 INFO L225 Difference]: With dead ends: 6981 [2022-03-03 20:30:47,511 INFO L226 Difference]: Without dead ends: 6926 [2022-03-03 20:30:47,511 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 536 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=239, Invalid=2311, Unknown=0, NotChecked=0, Total=2550 [2022-03-03 20:30:47,511 INFO L933 BasicCegarLoop]: 148 mSDtfsCounter, 305 mSDsluCounter, 1765 mSDsCounter, 0 mSdLazyCounter, 2341 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 305 SdHoareTripleChecker+Valid, 1509 SdHoareTripleChecker+Invalid, 2388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 2341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:30:47,512 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [305 Valid, 1509 Invalid, 2388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 2341 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:30:47,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6926 states. [2022-03-03 20:30:47,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6926 to 5560. [2022-03-03 20:30:47,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5560 states, 5559 states have (on average 3.3916171973376508) internal successors, (18854), 5559 states have internal predecessors, (18854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:47,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5560 states to 5560 states and 18854 transitions. [2022-03-03 20:30:47,594 INFO L78 Accepts]: Start accepts. Automaton has 5560 states and 18854 transitions. Word has length 39 [2022-03-03 20:30:47,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:30:47,594 INFO L470 AbstractCegarLoop]: Abstraction has 5560 states and 18854 transitions. [2022-03-03 20:30:47,594 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:47,594 INFO L276 IsEmpty]: Start isEmpty. Operand 5560 states and 18854 transitions. [2022-03-03 20:30:47,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:30:47,602 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:30:47,602 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:30:47,602 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable512 [2022-03-03 20:30:47,603 INFO L402 AbstractCegarLoop]: === Iteration 514 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:30:47,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:30:47,603 INFO L85 PathProgramCache]: Analyzing trace with hash -1650874280, now seen corresponding path program 514 times [2022-03-03 20:30:47,603 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:30:47,603 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732175788] [2022-03-03 20:30:47,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:30:47,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:30:47,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:30:47,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:30:47,744 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:30:47,744 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732175788] [2022-03-03 20:30:47,744 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732175788] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:30:47,745 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:30:47,745 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:30:47,745 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576642638] [2022-03-03 20:30:47,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:30:47,745 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:30:47,745 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:30:47,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:30:47,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:30:47,745 INFO L87 Difference]: Start difference. First operand 5560 states and 18854 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:48,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:30:48,364 INFO L93 Difference]: Finished difference Result 5856 states and 19670 transitions. [2022-03-03 20:30:48,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-03-03 20:30:48,364 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:30:48,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:30:48,375 INFO L225 Difference]: With dead ends: 5856 [2022-03-03 20:30:48,375 INFO L226 Difference]: Without dead ends: 5765 [2022-03-03 20:30:48,376 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 336 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=189, Invalid=1703, Unknown=0, NotChecked=0, Total=1892 [2022-03-03 20:30:48,376 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 190 mSDsluCounter, 1183 mSDsCounter, 0 mSdLazyCounter, 1531 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 997 SdHoareTripleChecker+Invalid, 1556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 20:30:48,376 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [190 Valid, 997 Invalid, 1556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1531 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 20:30:48,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5765 states. [2022-03-03 20:30:48,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5765 to 5566. [2022-03-03 20:30:48,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5566 states, 5565 states have (on average 3.3906558849955077) internal successors, (18869), 5565 states have internal predecessors, (18869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:48,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5566 states to 5566 states and 18869 transitions. [2022-03-03 20:30:48,454 INFO L78 Accepts]: Start accepts. Automaton has 5566 states and 18869 transitions. Word has length 39 [2022-03-03 20:30:48,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:30:48,454 INFO L470 AbstractCegarLoop]: Abstraction has 5566 states and 18869 transitions. [2022-03-03 20:30:48,454 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:48,454 INFO L276 IsEmpty]: Start isEmpty. Operand 5566 states and 18869 transitions. [2022-03-03 20:30:48,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:30:48,462 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:30:48,462 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:30:48,462 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable513 [2022-03-03 20:30:48,462 INFO L402 AbstractCegarLoop]: === Iteration 515 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:30:48,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:30:48,462 INFO L85 PathProgramCache]: Analyzing trace with hash -360329862, now seen corresponding path program 515 times [2022-03-03 20:30:48,462 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:30:48,462 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607290248] [2022-03-03 20:30:48,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:30:48,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:30:48,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:30:48,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:30:48,605 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:30:48,605 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607290248] [2022-03-03 20:30:48,605 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607290248] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:30:48,605 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:30:48,605 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:30:48,605 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865171876] [2022-03-03 20:30:48,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:30:48,605 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:30:48,606 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:30:48,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:30:48,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:30:48,606 INFO L87 Difference]: Start difference. First operand 5566 states and 18869 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:49,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:30:49,247 INFO L93 Difference]: Finished difference Result 5906 states and 19756 transitions. [2022-03-03 20:30:49,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-03 20:30:49,247 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:30:49,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:30:49,258 INFO L225 Difference]: With dead ends: 5906 [2022-03-03 20:30:49,259 INFO L226 Difference]: Without dead ends: 5851 [2022-03-03 20:30:49,259 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 336 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=193, Invalid=1699, Unknown=0, NotChecked=0, Total=1892 [2022-03-03 20:30:49,259 INFO L933 BasicCegarLoop]: 92 mSDtfsCounter, 196 mSDsluCounter, 1153 mSDsCounter, 0 mSdLazyCounter, 1550 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 930 SdHoareTripleChecker+Invalid, 1577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 20:30:49,259 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [196 Valid, 930 Invalid, 1577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1550 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 20:30:49,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5851 states. [2022-03-03 20:30:49,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5851 to 5568. [2022-03-03 20:30:49,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5568 states, 5567 states have (on average 3.3903359080294595) internal successors, (18874), 5567 states have internal predecessors, (18874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:49,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5568 states to 5568 states and 18874 transitions. [2022-03-03 20:30:49,357 INFO L78 Accepts]: Start accepts. Automaton has 5568 states and 18874 transitions. Word has length 39 [2022-03-03 20:30:49,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:30:49,358 INFO L470 AbstractCegarLoop]: Abstraction has 5568 states and 18874 transitions. [2022-03-03 20:30:49,358 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:49,358 INFO L276 IsEmpty]: Start isEmpty. Operand 5568 states and 18874 transitions. [2022-03-03 20:30:49,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:30:49,366 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:30:49,366 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:30:49,366 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable514 [2022-03-03 20:30:49,366 INFO L402 AbstractCegarLoop]: === Iteration 516 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:30:49,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:30:49,366 INFO L85 PathProgramCache]: Analyzing trace with hash 976728152, now seen corresponding path program 516 times [2022-03-03 20:30:49,367 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:30:49,367 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679007281] [2022-03-03 20:30:49,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:30:49,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:30:49,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:30:49,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:30:49,514 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:30:49,514 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679007281] [2022-03-03 20:30:49,514 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679007281] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:30:49,514 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:30:49,514 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:30:49,514 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932363648] [2022-03-03 20:30:49,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:30:49,514 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:30:49,514 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:30:49,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:30:49,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:30:49,514 INFO L87 Difference]: Start difference. First operand 5568 states and 18874 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:50,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:30:50,115 INFO L93 Difference]: Finished difference Result 5841 states and 19604 transitions. [2022-03-03 20:30:50,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-03-03 20:30:50,115 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:30:50,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:30:50,127 INFO L225 Difference]: With dead ends: 5841 [2022-03-03 20:30:50,127 INFO L226 Difference]: Without dead ends: 5798 [2022-03-03 20:30:50,128 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 263 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=166, Invalid=1474, Unknown=0, NotChecked=0, Total=1640 [2022-03-03 20:30:50,128 INFO L933 BasicCegarLoop]: 89 mSDtfsCounter, 185 mSDsluCounter, 1114 mSDsCounter, 0 mSdLazyCounter, 1513 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 896 SdHoareTripleChecker+Invalid, 1534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 20:30:50,128 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [185 Valid, 896 Invalid, 1534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1513 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 20:30:50,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5798 states. [2022-03-03 20:30:50,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5798 to 5574. [2022-03-03 20:30:50,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5574 states, 5573 states have (on average 3.389018481966625) internal successors, (18887), 5573 states have internal predecessors, (18887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:50,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5574 states to 5574 states and 18887 transitions. [2022-03-03 20:30:50,209 INFO L78 Accepts]: Start accepts. Automaton has 5574 states and 18887 transitions. Word has length 39 [2022-03-03 20:30:50,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:30:50,209 INFO L470 AbstractCegarLoop]: Abstraction has 5574 states and 18887 transitions. [2022-03-03 20:30:50,209 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:50,209 INFO L276 IsEmpty]: Start isEmpty. Operand 5574 states and 18887 transitions. [2022-03-03 20:30:50,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:30:50,217 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:30:50,217 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:30:50,217 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable515 [2022-03-03 20:30:50,218 INFO L402 AbstractCegarLoop]: === Iteration 517 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:30:50,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:30:50,218 INFO L85 PathProgramCache]: Analyzing trace with hash 705308602, now seen corresponding path program 517 times [2022-03-03 20:30:50,218 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:30:50,218 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745557356] [2022-03-03 20:30:50,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:30:50,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:30:50,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:30:50,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:30:50,362 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:30:50,362 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745557356] [2022-03-03 20:30:50,362 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745557356] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:30:50,362 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:30:50,362 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:30:50,363 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327759651] [2022-03-03 20:30:50,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:30:50,363 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:30:50,363 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:30:50,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:30:50,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:30:50,363 INFO L87 Difference]: Start difference. First operand 5574 states and 18887 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:50,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:30:50,953 INFO L93 Difference]: Finished difference Result 5810 states and 19537 transitions. [2022-03-03 20:30:50,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-03-03 20:30:50,953 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:30:50,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:30:50,967 INFO L225 Difference]: With dead ends: 5810 [2022-03-03 20:30:50,967 INFO L226 Difference]: Without dead ends: 5759 [2022-03-03 20:30:50,968 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 263 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=166, Invalid=1474, Unknown=0, NotChecked=0, Total=1640 [2022-03-03 20:30:50,968 INFO L933 BasicCegarLoop]: 88 mSDtfsCounter, 177 mSDsluCounter, 1102 mSDsCounter, 0 mSdLazyCounter, 1499 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 884 SdHoareTripleChecker+Invalid, 1520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 20:30:50,968 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [177 Valid, 884 Invalid, 1520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1499 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 20:30:50,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5759 states. [2022-03-03 20:30:51,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5759 to 5568. [2022-03-03 20:30:51,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5568 states, 5567 states have (on average 3.389976648104904) internal successors, (18872), 5567 states have internal predecessors, (18872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:51,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5568 states to 5568 states and 18872 transitions. [2022-03-03 20:30:51,060 INFO L78 Accepts]: Start accepts. Automaton has 5568 states and 18872 transitions. Word has length 39 [2022-03-03 20:30:51,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:30:51,060 INFO L470 AbstractCegarLoop]: Abstraction has 5568 states and 18872 transitions. [2022-03-03 20:30:51,060 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:51,060 INFO L276 IsEmpty]: Start isEmpty. Operand 5568 states and 18872 transitions. [2022-03-03 20:30:51,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:30:51,068 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:30:51,069 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:30:51,069 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable516 [2022-03-03 20:30:51,069 INFO L402 AbstractCegarLoop]: === Iteration 518 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:30:51,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:30:51,069 INFO L85 PathProgramCache]: Analyzing trace with hash -1526656282, now seen corresponding path program 518 times [2022-03-03 20:30:51,069 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:30:51,069 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329454006] [2022-03-03 20:30:51,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:30:51,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:30:51,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:30:51,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:30:51,234 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:30:51,234 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329454006] [2022-03-03 20:30:51,234 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329454006] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:30:51,234 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:30:51,234 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:30:51,234 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9887881] [2022-03-03 20:30:51,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:30:51,234 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:30:51,235 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:30:51,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:30:51,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:30:51,235 INFO L87 Difference]: Start difference. First operand 5568 states and 18872 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:52,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:30:52,090 INFO L93 Difference]: Finished difference Result 6635 states and 22259 transitions. [2022-03-03 20:30:52,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-03 20:30:52,090 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:30:52,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:30:52,104 INFO L225 Difference]: With dead ends: 6635 [2022-03-03 20:30:52,104 INFO L226 Difference]: Without dead ends: 6596 [2022-03-03 20:30:52,105 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 539 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=242, Invalid=2308, Unknown=0, NotChecked=0, Total=2550 [2022-03-03 20:30:52,105 INFO L933 BasicCegarLoop]: 114 mSDtfsCounter, 288 mSDsluCounter, 1398 mSDsCounter, 0 mSdLazyCounter, 1994 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 1160 SdHoareTripleChecker+Invalid, 2042 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 1994 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 20:30:52,105 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [288 Valid, 1160 Invalid, 2042 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 1994 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 20:30:52,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6596 states. [2022-03-03 20:30:52,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6596 to 5576. [2022-03-03 20:30:52,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5576 states, 5575 states have (on average 3.390134529147982) internal successors, (18900), 5575 states have internal predecessors, (18900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:52,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5576 states to 5576 states and 18900 transitions. [2022-03-03 20:30:52,192 INFO L78 Accepts]: Start accepts. Automaton has 5576 states and 18900 transitions. Word has length 39 [2022-03-03 20:30:52,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:30:52,192 INFO L470 AbstractCegarLoop]: Abstraction has 5576 states and 18900 transitions. [2022-03-03 20:30:52,192 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:52,192 INFO L276 IsEmpty]: Start isEmpty. Operand 5576 states and 18900 transitions. [2022-03-03 20:30:52,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:30:52,200 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:30:52,200 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:30:52,200 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable517 [2022-03-03 20:30:52,200 INFO L402 AbstractCegarLoop]: === Iteration 519 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:30:52,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:30:52,201 INFO L85 PathProgramCache]: Analyzing trace with hash 1010326600, now seen corresponding path program 519 times [2022-03-03 20:30:52,201 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:30:52,201 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796063385] [2022-03-03 20:30:52,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:30:52,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:30:52,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:30:52,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:30:52,344 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:30:52,344 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796063385] [2022-03-03 20:30:52,344 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796063385] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:30:52,344 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:30:52,344 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:30:52,345 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986974949] [2022-03-03 20:30:52,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:30:52,345 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:30:52,345 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:30:52,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:30:52,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:30:52,345 INFO L87 Difference]: Start difference. First operand 5576 states and 18900 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:53,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:30:53,185 INFO L93 Difference]: Finished difference Result 6641 states and 22272 transitions. [2022-03-03 20:30:53,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-03-03 20:30:53,186 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:30:53,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:30:53,199 INFO L225 Difference]: With dead ends: 6641 [2022-03-03 20:30:53,200 INFO L226 Difference]: Without dead ends: 6590 [2022-03-03 20:30:53,200 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 508 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=230, Invalid=2220, Unknown=0, NotChecked=0, Total=2450 [2022-03-03 20:30:53,200 INFO L933 BasicCegarLoop]: 116 mSDtfsCounter, 273 mSDsluCounter, 1417 mSDsCounter, 0 mSdLazyCounter, 2023 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 1178 SdHoareTripleChecker+Invalid, 2069 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 2023 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:30:53,200 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [273 Valid, 1178 Invalid, 2069 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 2023 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:30:53,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6590 states. [2022-03-03 20:30:53,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6590 to 5572. [2022-03-03 20:30:53,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5572 states, 5571 states have (on average 3.39041464728056) internal successors, (18888), 5571 states have internal predecessors, (18888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:53,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5572 states to 5572 states and 18888 transitions. [2022-03-03 20:30:53,285 INFO L78 Accepts]: Start accepts. Automaton has 5572 states and 18888 transitions. Word has length 39 [2022-03-03 20:30:53,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:30:53,285 INFO L470 AbstractCegarLoop]: Abstraction has 5572 states and 18888 transitions. [2022-03-03 20:30:53,286 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:53,286 INFO L276 IsEmpty]: Start isEmpty. Operand 5572 states and 18888 transitions. [2022-03-03 20:30:53,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:30:53,294 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:30:53,294 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:30:53,294 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable518 [2022-03-03 20:30:53,294 INFO L402 AbstractCegarLoop]: === Iteration 520 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:30:53,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:30:53,294 INFO L85 PathProgramCache]: Analyzing trace with hash -1623036584, now seen corresponding path program 520 times [2022-03-03 20:30:53,294 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:30:53,294 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759164259] [2022-03-03 20:30:53,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:30:53,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:30:53,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:30:53,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:30:53,492 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:30:53,492 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759164259] [2022-03-03 20:30:53,492 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759164259] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:30:53,492 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:30:53,492 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-03 20:30:53,492 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243456916] [2022-03-03 20:30:53,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:30:53,492 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 20:30:53,492 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:30:53,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 20:30:53,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-03-03 20:30:53,492 INFO L87 Difference]: Start difference. First operand 5572 states and 18888 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:54,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:30:54,322 INFO L93 Difference]: Finished difference Result 5765 states and 19451 transitions. [2022-03-03 20:30:54,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-03-03 20:30:54,323 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:30:54,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:30:54,333 INFO L225 Difference]: With dead ends: 5765 [2022-03-03 20:30:54,333 INFO L226 Difference]: Without dead ends: 5702 [2022-03-03 20:30:54,333 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 334 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=182, Invalid=1624, Unknown=0, NotChecked=0, Total=1806 [2022-03-03 20:30:54,333 INFO L933 BasicCegarLoop]: 103 mSDtfsCounter, 163 mSDsluCounter, 1087 mSDsCounter, 0 mSdLazyCounter, 1419 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 938 SdHoareTripleChecker+Invalid, 1443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 20:30:54,333 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 938 Invalid, 1443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1419 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 20:30:54,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5702 states. [2022-03-03 20:30:54,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5702 to 5572. [2022-03-03 20:30:54,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5572 states, 5571 states have (on average 3.39041464728056) internal successors, (18888), 5571 states have internal predecessors, (18888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:54,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5572 states to 5572 states and 18888 transitions. [2022-03-03 20:30:54,400 INFO L78 Accepts]: Start accepts. Automaton has 5572 states and 18888 transitions. Word has length 39 [2022-03-03 20:30:54,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:30:54,400 INFO L470 AbstractCegarLoop]: Abstraction has 5572 states and 18888 transitions. [2022-03-03 20:30:54,400 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:54,401 INFO L276 IsEmpty]: Start isEmpty. Operand 5572 states and 18888 transitions. [2022-03-03 20:30:54,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:30:54,407 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:30:54,407 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:30:54,407 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable519 [2022-03-03 20:30:54,408 INFO L402 AbstractCegarLoop]: === Iteration 521 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:30:54,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:30:54,408 INFO L85 PathProgramCache]: Analyzing trace with hash -611574794, now seen corresponding path program 521 times [2022-03-03 20:30:54,408 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:30:54,408 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448649407] [2022-03-03 20:30:54,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:30:54,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:30:54,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:30:54,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:30:54,626 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:30:54,626 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448649407] [2022-03-03 20:30:54,626 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448649407] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:30:54,626 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:30:54,626 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:30:54,626 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739945968] [2022-03-03 20:30:54,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:30:54,627 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:30:54,627 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:30:54,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:30:54,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:30:54,627 INFO L87 Difference]: Start difference. First operand 5572 states and 18888 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:56,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:30:56,459 INFO L93 Difference]: Finished difference Result 6768 states and 22715 transitions. [2022-03-03 20:30:56,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-03 20:30:56,459 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:30:56,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:30:56,472 INFO L225 Difference]: With dead ends: 6768 [2022-03-03 20:30:56,472 INFO L226 Difference]: Without dead ends: 6705 [2022-03-03 20:30:56,473 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1324 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=437, Invalid=4393, Unknown=0, NotChecked=0, Total=4830 [2022-03-03 20:30:56,473 INFO L933 BasicCegarLoop]: 150 mSDtfsCounter, 314 mSDsluCounter, 1775 mSDsCounter, 0 mSdLazyCounter, 2347 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 314 SdHoareTripleChecker+Valid, 1589 SdHoareTripleChecker+Invalid, 2420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 2347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 20:30:56,473 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [314 Valid, 1589 Invalid, 2420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 2347 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 20:30:56,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6705 states. [2022-03-03 20:30:56,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6705 to 5572. [2022-03-03 20:30:56,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5572 states, 5571 states have (on average 3.39041464728056) internal successors, (18888), 5571 states have internal predecessors, (18888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:56,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5572 states to 5572 states and 18888 transitions. [2022-03-03 20:30:56,573 INFO L78 Accepts]: Start accepts. Automaton has 5572 states and 18888 transitions. Word has length 39 [2022-03-03 20:30:56,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:30:56,573 INFO L470 AbstractCegarLoop]: Abstraction has 5572 states and 18888 transitions. [2022-03-03 20:30:56,574 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:56,574 INFO L276 IsEmpty]: Start isEmpty. Operand 5572 states and 18888 transitions. [2022-03-03 20:30:56,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:30:56,580 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:30:56,580 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:30:56,580 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable520 [2022-03-03 20:30:56,580 INFO L402 AbstractCegarLoop]: === Iteration 522 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:30:56,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:30:56,581 INFO L85 PathProgramCache]: Analyzing trace with hash 1925408088, now seen corresponding path program 522 times [2022-03-03 20:30:56,581 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:30:56,581 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714402886] [2022-03-03 20:30:56,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:30:56,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:30:56,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:30:56,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:30:56,798 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:30:56,798 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714402886] [2022-03-03 20:30:56,798 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714402886] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:30:56,798 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:30:56,798 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:30:56,798 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148476222] [2022-03-03 20:30:56,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:30:56,798 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:30:56,798 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:30:56,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:30:56,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:30:56,799 INFO L87 Difference]: Start difference. First operand 5572 states and 18888 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:58,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:30:58,589 INFO L93 Difference]: Finished difference Result 6655 states and 22421 transitions. [2022-03-03 20:30:58,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-03-03 20:30:58,589 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:30:58,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:30:58,602 INFO L225 Difference]: With dead ends: 6655 [2022-03-03 20:30:58,602 INFO L226 Difference]: Without dead ends: 6562 [2022-03-03 20:30:58,602 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1176 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=388, Invalid=4034, Unknown=0, NotChecked=0, Total=4422 [2022-03-03 20:30:58,603 INFO L933 BasicCegarLoop]: 158 mSDtfsCounter, 301 mSDsluCounter, 1808 mSDsCounter, 0 mSdLazyCounter, 2440 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 1637 SdHoareTripleChecker+Invalid, 2509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 2440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 20:30:58,603 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [301 Valid, 1637 Invalid, 2509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 2440 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 20:30:58,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6562 states. [2022-03-03 20:30:58,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6562 to 5518. [2022-03-03 20:30:58,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5518 states, 5517 states have (on average 3.397679898495559) internal successors, (18745), 5517 states have internal predecessors, (18745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:58,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5518 states to 5518 states and 18745 transitions. [2022-03-03 20:30:58,675 INFO L78 Accepts]: Start accepts. Automaton has 5518 states and 18745 transitions. Word has length 39 [2022-03-03 20:30:58,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:30:58,675 INFO L470 AbstractCegarLoop]: Abstraction has 5518 states and 18745 transitions. [2022-03-03 20:30:58,675 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:58,675 INFO L276 IsEmpty]: Start isEmpty. Operand 5518 states and 18745 transitions. [2022-03-03 20:30:58,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:30:58,682 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:30:58,682 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:30:58,682 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable521 [2022-03-03 20:30:58,682 INFO L402 AbstractCegarLoop]: === Iteration 523 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:30:58,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:30:58,683 INFO L85 PathProgramCache]: Analyzing trace with hash -1611642156, now seen corresponding path program 523 times [2022-03-03 20:30:58,683 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:30:58,683 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533840982] [2022-03-03 20:30:58,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:30:58,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:30:58,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:30:58,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:30:58,878 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:30:58,878 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533840982] [2022-03-03 20:30:58,879 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533840982] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:30:58,879 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:30:58,879 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:30:58,879 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066271213] [2022-03-03 20:30:58,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:30:58,879 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:30:58,879 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:30:58,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:30:58,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:30:58,879 INFO L87 Difference]: Start difference. First operand 5518 states and 18745 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:59,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:30:59,661 INFO L93 Difference]: Finished difference Result 5867 states and 19722 transitions. [2022-03-03 20:30:59,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-03-03 20:30:59,661 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:30:59,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:30:59,695 INFO L225 Difference]: With dead ends: 5867 [2022-03-03 20:30:59,695 INFO L226 Difference]: Without dead ends: 5800 [2022-03-03 20:30:59,695 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 317 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=175, Invalid=1631, Unknown=0, NotChecked=0, Total=1806 [2022-03-03 20:30:59,695 INFO L933 BasicCegarLoop]: 87 mSDtfsCounter, 189 mSDsluCounter, 1049 mSDsCounter, 0 mSdLazyCounter, 1431 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 852 SdHoareTripleChecker+Invalid, 1461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 20:30:59,695 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [189 Valid, 852 Invalid, 1461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1431 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 20:30:59,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5800 states. [2022-03-03 20:30:59,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5800 to 5536. [2022-03-03 20:30:59,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5536 states, 5535 states have (on average 3.395121951219512) internal successors, (18792), 5535 states have internal predecessors, (18792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:59,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5536 states to 5536 states and 18792 transitions. [2022-03-03 20:30:59,756 INFO L78 Accepts]: Start accepts. Automaton has 5536 states and 18792 transitions. Word has length 39 [2022-03-03 20:30:59,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:30:59,756 INFO L470 AbstractCegarLoop]: Abstraction has 5536 states and 18792 transitions. [2022-03-03 20:30:59,757 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:30:59,757 INFO L276 IsEmpty]: Start isEmpty. Operand 5536 states and 18792 transitions. [2022-03-03 20:30:59,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:30:59,763 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:30:59,763 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:30:59,764 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable522 [2022-03-03 20:30:59,764 INFO L402 AbstractCegarLoop]: === Iteration 524 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:30:59,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:30:59,764 INFO L85 PathProgramCache]: Analyzing trace with hash -1783785374, now seen corresponding path program 524 times [2022-03-03 20:30:59,764 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:30:59,764 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138158907] [2022-03-03 20:30:59,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:30:59,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:30:59,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:30:59,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:30:59,945 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:30:59,945 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138158907] [2022-03-03 20:30:59,945 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138158907] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:30:59,945 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:30:59,945 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:30:59,945 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448313280] [2022-03-03 20:30:59,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:30:59,946 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:30:59,946 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:30:59,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:30:59,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:30:59,946 INFO L87 Difference]: Start difference. First operand 5536 states and 18792 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:00,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:31:00,579 INFO L93 Difference]: Finished difference Result 5855 states and 19682 transitions. [2022-03-03 20:31:00,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-03 20:31:00,579 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:31:00,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:31:00,591 INFO L225 Difference]: With dead ends: 5855 [2022-03-03 20:31:00,591 INFO L226 Difference]: Without dead ends: 5792 [2022-03-03 20:31:00,591 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 317 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=174, Invalid=1632, Unknown=0, NotChecked=0, Total=1806 [2022-03-03 20:31:00,591 INFO L933 BasicCegarLoop]: 89 mSDtfsCounter, 186 mSDsluCounter, 1071 mSDsCounter, 0 mSdLazyCounter, 1440 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 877 SdHoareTripleChecker+Invalid, 1472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 20:31:00,592 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [186 Valid, 877 Invalid, 1472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1440 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 20:31:00,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5792 states. [2022-03-03 20:31:00,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5792 to 5568. [2022-03-03 20:31:00,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5568 states, 5567 states have (on average 3.3906951679540147) internal successors, (18876), 5567 states have internal predecessors, (18876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:00,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5568 states to 5568 states and 18876 transitions. [2022-03-03 20:31:00,674 INFO L78 Accepts]: Start accepts. Automaton has 5568 states and 18876 transitions. Word has length 39 [2022-03-03 20:31:00,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:31:00,674 INFO L470 AbstractCegarLoop]: Abstraction has 5568 states and 18876 transitions. [2022-03-03 20:31:00,674 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:00,674 INFO L276 IsEmpty]: Start isEmpty. Operand 5568 states and 18876 transitions. [2022-03-03 20:31:00,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:31:00,682 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:31:00,682 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:31:00,682 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable523 [2022-03-03 20:31:00,683 INFO L402 AbstractCegarLoop]: === Iteration 525 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:31:00,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:31:00,683 INFO L85 PathProgramCache]: Analyzing trace with hash 708347766, now seen corresponding path program 525 times [2022-03-03 20:31:00,683 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:31:00,683 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358693055] [2022-03-03 20:31:00,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:31:00,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:31:00,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:31:00,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:31:00,864 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:31:00,865 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358693055] [2022-03-03 20:31:00,865 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358693055] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:31:00,865 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:31:00,865 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:31:00,865 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091504623] [2022-03-03 20:31:00,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:31:00,865 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:31:00,865 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:31:00,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:31:00,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:31:00,865 INFO L87 Difference]: Start difference. First operand 5568 states and 18876 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:01,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:31:01,457 INFO L93 Difference]: Finished difference Result 5855 states and 19674 transitions. [2022-03-03 20:31:01,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-03-03 20:31:01,457 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:31:01,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:31:01,468 INFO L225 Difference]: With dead ends: 5855 [2022-03-03 20:31:01,469 INFO L226 Difference]: Without dead ends: 5720 [2022-03-03 20:31:01,469 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 315 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=172, Invalid=1634, Unknown=0, NotChecked=0, Total=1806 [2022-03-03 20:31:01,469 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 179 mSDsluCounter, 1135 mSDsCounter, 0 mSdLazyCounter, 1457 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 948 SdHoareTripleChecker+Invalid, 1485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 20:31:01,469 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [179 Valid, 948 Invalid, 1485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1457 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 20:31:01,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5720 states. [2022-03-03 20:31:01,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5720 to 5524. [2022-03-03 20:31:01,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5524 states, 5523 states have (on average 3.3967046894803548) internal successors, (18760), 5523 states have internal predecessors, (18760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:01,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5524 states to 5524 states and 18760 transitions. [2022-03-03 20:31:01,583 INFO L78 Accepts]: Start accepts. Automaton has 5524 states and 18760 transitions. Word has length 39 [2022-03-03 20:31:01,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:31:01,583 INFO L470 AbstractCegarLoop]: Abstraction has 5524 states and 18760 transitions. [2022-03-03 20:31:01,583 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:01,583 INFO L276 IsEmpty]: Start isEmpty. Operand 5524 states and 18760 transitions. [2022-03-03 20:31:01,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:31:01,590 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:31:01,590 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:31:01,590 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable524 [2022-03-03 20:31:01,590 INFO L402 AbstractCegarLoop]: === Iteration 526 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:31:01,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:31:01,590 INFO L85 PathProgramCache]: Analyzing trace with hash 1287767002, now seen corresponding path program 526 times [2022-03-03 20:31:01,590 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:31:01,590 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705269396] [2022-03-03 20:31:01,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:31:01,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:31:01,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:31:01,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:31:01,762 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:31:01,762 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705269396] [2022-03-03 20:31:01,762 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705269396] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:31:01,762 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:31:01,762 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:31:01,762 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909147288] [2022-03-03 20:31:01,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:31:01,762 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:31:01,762 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:31:01,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:31:01,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:31:01,762 INFO L87 Difference]: Start difference. First operand 5524 states and 18760 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:02,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:31:02,319 INFO L93 Difference]: Finished difference Result 5791 states and 19510 transitions. [2022-03-03 20:31:02,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-03-03 20:31:02,319 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:31:02,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:31:02,331 INFO L225 Difference]: With dead ends: 5791 [2022-03-03 20:31:02,331 INFO L226 Difference]: Without dead ends: 5724 [2022-03-03 20:31:02,331 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 268 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=155, Invalid=1485, Unknown=0, NotChecked=0, Total=1640 [2022-03-03 20:31:02,331 INFO L933 BasicCegarLoop]: 87 mSDtfsCounter, 163 mSDsluCounter, 1036 mSDsCounter, 0 mSdLazyCounter, 1418 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 841 SdHoareTripleChecker+Invalid, 1445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 20:31:02,331 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 841 Invalid, 1445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1418 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 20:31:02,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5724 states. [2022-03-03 20:31:02,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5724 to 5544. [2022-03-03 20:31:02,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5544 states, 5543 states have (on average 3.3938300559263936) internal successors, (18812), 5543 states have internal predecessors, (18812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:02,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5544 states to 5544 states and 18812 transitions. [2022-03-03 20:31:02,411 INFO L78 Accepts]: Start accepts. Automaton has 5544 states and 18812 transitions. Word has length 39 [2022-03-03 20:31:02,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:31:02,411 INFO L470 AbstractCegarLoop]: Abstraction has 5544 states and 18812 transitions. [2022-03-03 20:31:02,411 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:02,411 INFO L276 IsEmpty]: Start isEmpty. Operand 5544 states and 18812 transitions. [2022-03-03 20:31:02,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:31:02,419 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:31:02,420 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:31:02,420 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable525 [2022-03-03 20:31:02,420 INFO L402 AbstractCegarLoop]: === Iteration 527 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:31:02,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:31:02,420 INFO L85 PathProgramCache]: Analyzing trace with hash 1115623784, now seen corresponding path program 527 times [2022-03-03 20:31:02,420 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:31:02,420 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717585088] [2022-03-03 20:31:02,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:31:02,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:31:02,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:31:02,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:31:02,564 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:31:02,564 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717585088] [2022-03-03 20:31:02,564 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717585088] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:31:02,564 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:31:02,564 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:31:02,564 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412805112] [2022-03-03 20:31:02,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:31:02,565 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:31:02,565 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:31:02,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:31:02,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:31:02,565 INFO L87 Difference]: Start difference. First operand 5544 states and 18812 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:03,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:31:03,126 INFO L93 Difference]: Finished difference Result 5779 states and 19470 transitions. [2022-03-03 20:31:03,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-03-03 20:31:03,126 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:31:03,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:31:03,137 INFO L225 Difference]: With dead ends: 5779 [2022-03-03 20:31:03,138 INFO L226 Difference]: Without dead ends: 5716 [2022-03-03 20:31:03,138 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 268 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=155, Invalid=1485, Unknown=0, NotChecked=0, Total=1640 [2022-03-03 20:31:03,138 INFO L933 BasicCegarLoop]: 87 mSDtfsCounter, 162 mSDsluCounter, 1033 mSDsCounter, 0 mSdLazyCounter, 1403 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 851 SdHoareTripleChecker+Invalid, 1433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 20:31:03,138 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 851 Invalid, 1433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1403 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 20:31:03,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5716 states. [2022-03-03 20:31:03,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5716 to 5576. [2022-03-03 20:31:03,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5576 states, 5575 states have (on average 3.3894170403587442) internal successors, (18896), 5575 states have internal predecessors, (18896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:03,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5576 states to 5576 states and 18896 transitions. [2022-03-03 20:31:03,217 INFO L78 Accepts]: Start accepts. Automaton has 5576 states and 18896 transitions. Word has length 39 [2022-03-03 20:31:03,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:31:03,217 INFO L470 AbstractCegarLoop]: Abstraction has 5576 states and 18896 transitions. [2022-03-03 20:31:03,217 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:03,217 INFO L276 IsEmpty]: Start isEmpty. Operand 5576 states and 18896 transitions. [2022-03-03 20:31:03,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:31:03,225 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:31:03,225 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:31:03,225 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable526 [2022-03-03 20:31:03,225 INFO L402 AbstractCegarLoop]: === Iteration 528 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:31:03,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:31:03,225 INFO L85 PathProgramCache]: Analyzing trace with hash -687210372, now seen corresponding path program 528 times [2022-03-03 20:31:03,225 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:31:03,225 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623003525] [2022-03-03 20:31:03,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:31:03,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:31:03,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:31:03,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:31:03,371 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:31:03,371 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623003525] [2022-03-03 20:31:03,371 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623003525] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:31:03,371 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:31:03,371 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:31:03,371 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876173237] [2022-03-03 20:31:03,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:31:03,371 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:31:03,371 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:31:03,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:31:03,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:31:03,371 INFO L87 Difference]: Start difference. First operand 5576 states and 18896 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:04,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:31:04,032 INFO L93 Difference]: Finished difference Result 5779 states and 19462 transitions. [2022-03-03 20:31:04,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 20:31:04,033 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:31:04,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:31:04,044 INFO L225 Difference]: With dead ends: 5779 [2022-03-03 20:31:04,044 INFO L226 Difference]: Without dead ends: 5636 [2022-03-03 20:31:04,044 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 266 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=154, Invalid=1486, Unknown=0, NotChecked=0, Total=1640 [2022-03-03 20:31:04,045 INFO L933 BasicCegarLoop]: 92 mSDtfsCounter, 156 mSDsluCounter, 1096 mSDsCounter, 0 mSdLazyCounter, 1408 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 920 SdHoareTripleChecker+Invalid, 1434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 20:31:04,045 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 920 Invalid, 1434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1408 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 20:31:04,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5636 states. [2022-03-03 20:31:04,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5636 to 5524. [2022-03-03 20:31:04,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5524 states, 5523 states have (on average 3.396342567445229) internal successors, (18758), 5523 states have internal predecessors, (18758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:04,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5524 states to 5524 states and 18758 transitions. [2022-03-03 20:31:04,123 INFO L78 Accepts]: Start accepts. Automaton has 5524 states and 18758 transitions. Word has length 39 [2022-03-03 20:31:04,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:31:04,123 INFO L470 AbstractCegarLoop]: Abstraction has 5524 states and 18758 transitions. [2022-03-03 20:31:04,123 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:04,123 INFO L276 IsEmpty]: Start isEmpty. Operand 5524 states and 18758 transitions. [2022-03-03 20:31:04,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:31:04,131 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:31:04,131 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:31:04,131 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable527 [2022-03-03 20:31:04,131 INFO L402 AbstractCegarLoop]: === Iteration 529 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:31:04,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:31:04,131 INFO L85 PathProgramCache]: Analyzing trace with hash -1832261322, now seen corresponding path program 529 times [2022-03-03 20:31:04,131 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:31:04,131 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802278770] [2022-03-03 20:31:04,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:31:04,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:31:04,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:31:04,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:31:04,319 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:31:04,319 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802278770] [2022-03-03 20:31:04,319 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802278770] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:31:04,319 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:31:04,319 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:31:04,319 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477705728] [2022-03-03 20:31:04,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:31:04,319 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:31:04,319 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:31:04,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:31:04,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:31:04,320 INFO L87 Difference]: Start difference. First operand 5524 states and 18758 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:05,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:31:05,303 INFO L93 Difference]: Finished difference Result 5999 states and 20141 transitions. [2022-03-03 20:31:05,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 20:31:05,303 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:31:05,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:31:05,313 INFO L225 Difference]: With dead ends: 5999 [2022-03-03 20:31:05,314 INFO L226 Difference]: Without dead ends: 5932 [2022-03-03 20:31:05,314 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 424 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=204, Invalid=1958, Unknown=0, NotChecked=0, Total=2162 [2022-03-03 20:31:05,314 INFO L933 BasicCegarLoop]: 109 mSDtfsCounter, 246 mSDsluCounter, 1278 mSDsCounter, 0 mSdLazyCounter, 1697 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 1078 SdHoareTripleChecker+Invalid, 1741 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 1697 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:31:05,314 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [246 Valid, 1078 Invalid, 1741 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 1697 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:31:05,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5932 states. [2022-03-03 20:31:05,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5932 to 5542. [2022-03-03 20:31:05,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5542 states, 5541 states have (on average 3.3937917343439814) internal successors, (18805), 5541 states have internal predecessors, (18805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:05,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5542 states to 5542 states and 18805 transitions. [2022-03-03 20:31:05,382 INFO L78 Accepts]: Start accepts. Automaton has 5542 states and 18805 transitions. Word has length 39 [2022-03-03 20:31:05,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:31:05,382 INFO L470 AbstractCegarLoop]: Abstraction has 5542 states and 18805 transitions. [2022-03-03 20:31:05,382 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:05,382 INFO L276 IsEmpty]: Start isEmpty. Operand 5542 states and 18805 transitions. [2022-03-03 20:31:05,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:31:05,389 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:31:05,389 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:31:05,389 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable528 [2022-03-03 20:31:05,389 INFO L402 AbstractCegarLoop]: === Iteration 530 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:31:05,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:31:05,389 INFO L85 PathProgramCache]: Analyzing trace with hash -2004404540, now seen corresponding path program 530 times [2022-03-03 20:31:05,390 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:31:05,390 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483083497] [2022-03-03 20:31:05,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:31:05,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:31:05,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:31:05,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:31:05,608 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:31:05,608 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483083497] [2022-03-03 20:31:05,608 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483083497] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:31:05,608 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:31:05,608 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:31:05,609 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144063092] [2022-03-03 20:31:05,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:31:05,609 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:31:05,609 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:31:05,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:31:05,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:31:05,609 INFO L87 Difference]: Start difference. First operand 5542 states and 18805 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:06,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:31:06,585 INFO L93 Difference]: Finished difference Result 5971 states and 20049 transitions. [2022-03-03 20:31:06,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 20:31:06,585 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:31:06,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:31:06,596 INFO L225 Difference]: With dead ends: 5971 [2022-03-03 20:31:06,596 INFO L226 Difference]: Without dead ends: 5908 [2022-03-03 20:31:06,596 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 370 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=190, Invalid=1790, Unknown=0, NotChecked=0, Total=1980 [2022-03-03 20:31:06,596 INFO L933 BasicCegarLoop]: 96 mSDtfsCounter, 213 mSDsluCounter, 1169 mSDsCounter, 0 mSdLazyCounter, 1562 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 957 SdHoareTripleChecker+Invalid, 1604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 1562 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:31:06,596 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [213 Valid, 957 Invalid, 1604 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 1562 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:31:06,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5908 states. [2022-03-03 20:31:06,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5908 to 5574. [2022-03-03 20:31:06,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5574 states, 5573 states have (on average 3.3893773551049704) internal successors, (18889), 5573 states have internal predecessors, (18889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:06,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5574 states to 5574 states and 18889 transitions. [2022-03-03 20:31:06,660 INFO L78 Accepts]: Start accepts. Automaton has 5574 states and 18889 transitions. Word has length 39 [2022-03-03 20:31:06,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:31:06,660 INFO L470 AbstractCegarLoop]: Abstraction has 5574 states and 18889 transitions. [2022-03-03 20:31:06,660 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:06,660 INFO L276 IsEmpty]: Start isEmpty. Operand 5574 states and 18889 transitions. [2022-03-03 20:31:06,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:31:06,667 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:31:06,667 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:31:06,667 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable529 [2022-03-03 20:31:06,667 INFO L402 AbstractCegarLoop]: === Iteration 531 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:31:06,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:31:06,667 INFO L85 PathProgramCache]: Analyzing trace with hash 487728600, now seen corresponding path program 531 times [2022-03-03 20:31:06,667 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:31:06,667 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621061482] [2022-03-03 20:31:06,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:31:06,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:31:06,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:31:06,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:31:06,884 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:31:06,884 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621061482] [2022-03-03 20:31:06,884 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621061482] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:31:06,884 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:31:06,884 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:31:06,884 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079059395] [2022-03-03 20:31:06,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:31:06,885 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:31:06,885 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:31:06,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:31:06,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:31:06,885 INFO L87 Difference]: Start difference. First operand 5574 states and 18889 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:07,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:31:07,819 INFO L93 Difference]: Finished difference Result 5971 states and 20041 transitions. [2022-03-03 20:31:07,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-03 20:31:07,819 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:31:07,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:31:07,829 INFO L225 Difference]: With dead ends: 5971 [2022-03-03 20:31:07,829 INFO L226 Difference]: Without dead ends: 5836 [2022-03-03 20:31:07,830 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 367 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=185, Invalid=1795, Unknown=0, NotChecked=0, Total=1980 [2022-03-03 20:31:07,830 INFO L933 BasicCegarLoop]: 102 mSDtfsCounter, 206 mSDsluCounter, 1237 mSDsCounter, 0 mSdLazyCounter, 1576 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 1032 SdHoareTripleChecker+Invalid, 1614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:31:07,830 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [206 Valid, 1032 Invalid, 1614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1576 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:31:07,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5836 states. [2022-03-03 20:31:07,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5836 to 5530. [2022-03-03 20:31:07,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5530 states, 5529 states have (on average 3.395008138903961) internal successors, (18771), 5529 states have internal predecessors, (18771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:07,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5530 states to 5530 states and 18771 transitions. [2022-03-03 20:31:07,896 INFO L78 Accepts]: Start accepts. Automaton has 5530 states and 18771 transitions. Word has length 39 [2022-03-03 20:31:07,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:31:07,896 INFO L470 AbstractCegarLoop]: Abstraction has 5530 states and 18771 transitions. [2022-03-03 20:31:07,896 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:07,896 INFO L276 IsEmpty]: Start isEmpty. Operand 5530 states and 18771 transitions. [2022-03-03 20:31:07,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:31:07,903 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:31:07,903 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:31:07,903 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable530 [2022-03-03 20:31:07,903 INFO L402 AbstractCegarLoop]: === Iteration 532 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:31:07,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:31:07,903 INFO L85 PathProgramCache]: Analyzing trace with hash -2137748568, now seen corresponding path program 532 times [2022-03-03 20:31:07,903 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:31:07,903 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845746623] [2022-03-03 20:31:07,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:31:07,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:31:07,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:31:08,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:31:08,123 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:31:08,123 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845746623] [2022-03-03 20:31:08,123 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845746623] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:31:08,123 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:31:08,123 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:31:08,123 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375910073] [2022-03-03 20:31:08,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:31:08,123 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:31:08,123 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:31:08,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:31:08,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:31:08,124 INFO L87 Difference]: Start difference. First operand 5530 states and 18771 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:09,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:31:09,514 INFO L93 Difference]: Finished difference Result 6082 states and 20396 transitions. [2022-03-03 20:31:09,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-03-03 20:31:09,514 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:31:09,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:31:09,525 INFO L225 Difference]: With dead ends: 6082 [2022-03-03 20:31:09,525 INFO L226 Difference]: Without dead ends: 6015 [2022-03-03 20:31:09,525 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 919 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=354, Invalid=3306, Unknown=0, NotChecked=0, Total=3660 [2022-03-03 20:31:09,525 INFO L933 BasicCegarLoop]: 103 mSDtfsCounter, 292 mSDsluCounter, 1229 mSDsCounter, 0 mSdLazyCounter, 1739 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 292 SdHoareTripleChecker+Valid, 1027 SdHoareTripleChecker+Invalid, 1823 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 1739 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:31:09,525 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [292 Valid, 1027 Invalid, 1823 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 1739 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:31:09,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6015 states. [2022-03-03 20:31:09,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6015 to 5556. [2022-03-03 20:31:09,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5556 states, 5555 states have (on average 3.391899189918992) internal successors, (18842), 5555 states have internal predecessors, (18842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:09,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5556 states to 5556 states and 18842 transitions. [2022-03-03 20:31:09,591 INFO L78 Accepts]: Start accepts. Automaton has 5556 states and 18842 transitions. Word has length 39 [2022-03-03 20:31:09,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:31:09,591 INFO L470 AbstractCegarLoop]: Abstraction has 5556 states and 18842 transitions. [2022-03-03 20:31:09,591 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:09,591 INFO L276 IsEmpty]: Start isEmpty. Operand 5556 states and 18842 transitions. [2022-03-03 20:31:09,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:31:09,598 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:31:09,598 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:31:09,598 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable531 [2022-03-03 20:31:09,598 INFO L402 AbstractCegarLoop]: === Iteration 533 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:31:09,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:31:09,599 INFO L85 PathProgramCache]: Analyzing trace with hash 437602758, now seen corresponding path program 533 times [2022-03-03 20:31:09,599 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:31:09,599 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762362767] [2022-03-03 20:31:09,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:31:09,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:31:09,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:31:09,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:31:09,815 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:31:09,815 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762362767] [2022-03-03 20:31:09,815 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762362767] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:31:09,815 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:31:09,815 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:31:09,815 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894790854] [2022-03-03 20:31:09,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:31:09,815 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:31:09,815 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:31:09,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:31:09,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:31:09,816 INFO L87 Difference]: Start difference. First operand 5556 states and 18842 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:11,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:31:11,382 INFO L93 Difference]: Finished difference Result 6206 states and 20693 transitions. [2022-03-03 20:31:11,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-03-03 20:31:11,382 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:31:11,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:31:11,395 INFO L225 Difference]: With dead ends: 6206 [2022-03-03 20:31:11,395 INFO L226 Difference]: Without dead ends: 6163 [2022-03-03 20:31:11,396 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1284 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=415, Invalid=4277, Unknown=0, NotChecked=0, Total=4692 [2022-03-03 20:31:11,396 INFO L933 BasicCegarLoop]: 108 mSDtfsCounter, 343 mSDsluCounter, 1372 mSDsCounter, 0 mSdLazyCounter, 2051 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 1137 SdHoareTripleChecker+Invalid, 2143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 2051 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:31:11,396 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [343 Valid, 1137 Invalid, 2143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 2051 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:31:11,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6163 states. [2022-03-03 20:31:11,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6163 to 5562. [2022-03-03 20:31:11,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5562 states, 5561 states have (on average 3.390577234310376) internal successors, (18855), 5561 states have internal predecessors, (18855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:11,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5562 states to 5562 states and 18855 transitions. [2022-03-03 20:31:11,485 INFO L78 Accepts]: Start accepts. Automaton has 5562 states and 18855 transitions. Word has length 39 [2022-03-03 20:31:11,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:31:11,485 INFO L470 AbstractCegarLoop]: Abstraction has 5562 states and 18855 transitions. [2022-03-03 20:31:11,485 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:11,485 INFO L276 IsEmpty]: Start isEmpty. Operand 5562 states and 18855 transitions. [2022-03-03 20:31:11,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:31:11,494 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:31:11,494 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:31:11,494 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable532 [2022-03-03 20:31:11,494 INFO L402 AbstractCegarLoop]: === Iteration 534 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:31:11,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:31:11,494 INFO L85 PathProgramCache]: Analyzing trace with hash -1342995544, now seen corresponding path program 534 times [2022-03-03 20:31:11,494 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:31:11,494 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334917792] [2022-03-03 20:31:11,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:31:11,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:31:11,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:31:11,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:31:11,642 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:31:11,642 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334917792] [2022-03-03 20:31:11,642 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334917792] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:31:11,642 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:31:11,642 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:31:11,642 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866276014] [2022-03-03 20:31:11,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:31:11,642 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:31:11,642 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:31:11,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:31:11,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:31:11,643 INFO L87 Difference]: Start difference. First operand 5562 states and 18855 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:13,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:31:13,120 INFO L93 Difference]: Finished difference Result 6155 states and 20570 transitions. [2022-03-03 20:31:13,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-03-03 20:31:13,120 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:31:13,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:31:13,131 INFO L225 Difference]: With dead ends: 6155 [2022-03-03 20:31:13,131 INFO L226 Difference]: Without dead ends: 6091 [2022-03-03 20:31:13,132 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1137 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=384, Invalid=3906, Unknown=0, NotChecked=0, Total=4290 [2022-03-03 20:31:13,132 INFO L933 BasicCegarLoop]: 104 mSDtfsCounter, 329 mSDsluCounter, 1323 mSDsCounter, 0 mSdLazyCounter, 1935 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 329 SdHoareTripleChecker+Valid, 1098 SdHoareTripleChecker+Invalid, 2022 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 1935 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:31:13,132 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [329 Valid, 1098 Invalid, 2022 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 1935 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:31:13,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6091 states. [2022-03-03 20:31:13,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6091 to 5540. [2022-03-03 20:31:13,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5540 states, 5539 states have (on average 3.3944755371005595) internal successors, (18802), 5539 states have internal predecessors, (18802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:13,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5540 states to 5540 states and 18802 transitions. [2022-03-03 20:31:13,203 INFO L78 Accepts]: Start accepts. Automaton has 5540 states and 18802 transitions. Word has length 39 [2022-03-03 20:31:13,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:31:13,203 INFO L470 AbstractCegarLoop]: Abstraction has 5540 states and 18802 transitions. [2022-03-03 20:31:13,204 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:13,204 INFO L276 IsEmpty]: Start isEmpty. Operand 5540 states and 18802 transitions. [2022-03-03 20:31:13,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:31:13,210 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:31:13,210 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:31:13,210 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable533 [2022-03-03 20:31:13,211 INFO L402 AbstractCegarLoop]: === Iteration 535 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:31:13,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:31:13,211 INFO L85 PathProgramCache]: Analyzing trace with hash -722561144, now seen corresponding path program 535 times [2022-03-03 20:31:13,211 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:31:13,211 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688319531] [2022-03-03 20:31:13,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:31:13,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:31:13,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:31:13,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:31:13,433 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:31:13,433 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688319531] [2022-03-03 20:31:13,433 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688319531] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:31:13,433 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:31:13,433 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:31:13,433 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756896661] [2022-03-03 20:31:13,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:31:13,434 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:31:13,434 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:31:13,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:31:13,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:31:13,434 INFO L87 Difference]: Start difference. First operand 5540 states and 18802 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:14,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:31:14,770 INFO L93 Difference]: Finished difference Result 6082 states and 20390 transitions. [2022-03-03 20:31:14,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-03-03 20:31:14,770 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:31:14,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:31:14,781 INFO L225 Difference]: With dead ends: 6082 [2022-03-03 20:31:14,781 INFO L226 Difference]: Without dead ends: 6015 [2022-03-03 20:31:14,782 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 960 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=357, Invalid=3425, Unknown=0, NotChecked=0, Total=3782 [2022-03-03 20:31:14,782 INFO L933 BasicCegarLoop]: 106 mSDtfsCounter, 271 mSDsluCounter, 1280 mSDsCounter, 0 mSdLazyCounter, 1779 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 1069 SdHoareTripleChecker+Invalid, 1859 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 1779 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:31:14,782 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [271 Valid, 1069 Invalid, 1859 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 1779 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:31:14,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6015 states. [2022-03-03 20:31:14,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6015 to 5564. [2022-03-03 20:31:14,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5564 states, 5563 states have (on average 3.3938522380010787) internal successors, (18880), 5563 states have internal predecessors, (18880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:14,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5564 states to 5564 states and 18880 transitions. [2022-03-03 20:31:14,852 INFO L78 Accepts]: Start accepts. Automaton has 5564 states and 18880 transitions. Word has length 39 [2022-03-03 20:31:14,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:31:14,852 INFO L470 AbstractCegarLoop]: Abstraction has 5564 states and 18880 transitions. [2022-03-03 20:31:14,852 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:14,852 INFO L276 IsEmpty]: Start isEmpty. Operand 5564 states and 18880 transitions. [2022-03-03 20:31:14,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:31:14,859 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:31:14,859 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:31:14,859 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable534 [2022-03-03 20:31:14,859 INFO L402 AbstractCegarLoop]: === Iteration 536 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:31:14,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:31:14,859 INFO L85 PathProgramCache]: Analyzing trace with hash -853155992, now seen corresponding path program 536 times [2022-03-03 20:31:14,859 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:31:14,859 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921768179] [2022-03-03 20:31:14,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:31:14,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:31:14,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:31:15,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:31:15,078 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:31:15,078 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921768179] [2022-03-03 20:31:15,078 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921768179] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:31:15,078 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:31:15,079 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:31:15,079 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516750362] [2022-03-03 20:31:15,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:31:15,079 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:31:15,079 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:31:15,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:31:15,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:31:15,079 INFO L87 Difference]: Start difference. First operand 5564 states and 18880 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:16,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:31:16,292 INFO L93 Difference]: Finished difference Result 6085 states and 20349 transitions. [2022-03-03 20:31:16,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-03-03 20:31:16,293 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:31:16,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:31:16,304 INFO L225 Difference]: With dead ends: 6085 [2022-03-03 20:31:16,304 INFO L226 Difference]: Without dead ends: 6022 [2022-03-03 20:31:16,304 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 753 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=315, Invalid=2877, Unknown=0, NotChecked=0, Total=3192 [2022-03-03 20:31:16,305 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 242 mSDsluCounter, 1196 mSDsCounter, 0 mSdLazyCounter, 1627 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 970 SdHoareTripleChecker+Invalid, 1695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 1627 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:31:16,305 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [242 Valid, 970 Invalid, 1695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 1627 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:31:16,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6022 states. [2022-03-03 20:31:16,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6022 to 5564. [2022-03-03 20:31:16,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5564 states, 5563 states have (on average 3.3931332015099764) internal successors, (18876), 5563 states have internal predecessors, (18876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:16,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5564 states to 5564 states and 18876 transitions. [2022-03-03 20:31:16,373 INFO L78 Accepts]: Start accepts. Automaton has 5564 states and 18876 transitions. Word has length 39 [2022-03-03 20:31:16,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:31:16,373 INFO L470 AbstractCegarLoop]: Abstraction has 5564 states and 18876 transitions. [2022-03-03 20:31:16,373 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:16,373 INFO L276 IsEmpty]: Start isEmpty. Operand 5564 states and 18876 transitions. [2022-03-03 20:31:16,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:31:16,380 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:31:16,380 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:31:16,380 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable535 [2022-03-03 20:31:16,380 INFO L402 AbstractCegarLoop]: === Iteration 537 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:31:16,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:31:16,380 INFO L85 PathProgramCache]: Analyzing trace with hash -988834584, now seen corresponding path program 537 times [2022-03-03 20:31:16,381 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:31:16,381 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925852767] [2022-03-03 20:31:16,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:31:16,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:31:16,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:31:16,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:31:16,603 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:31:16,603 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925852767] [2022-03-03 20:31:16,603 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925852767] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:31:16,603 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:31:16,603 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:31:16,604 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890066567] [2022-03-03 20:31:16,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:31:16,604 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:31:16,604 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:31:16,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:31:16,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:31:16,604 INFO L87 Difference]: Start difference. First operand 5564 states and 18876 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:18,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:31:18,135 INFO L93 Difference]: Finished difference Result 6233 states and 20723 transitions. [2022-03-03 20:31:18,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-03-03 20:31:18,135 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:31:18,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:31:18,146 INFO L225 Difference]: With dead ends: 6233 [2022-03-03 20:31:18,147 INFO L226 Difference]: Without dead ends: 6190 [2022-03-03 20:31:18,147 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1231 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=394, Invalid=4162, Unknown=0, NotChecked=0, Total=4556 [2022-03-03 20:31:18,147 INFO L933 BasicCegarLoop]: 108 mSDtfsCounter, 310 mSDsluCounter, 1393 mSDsCounter, 0 mSdLazyCounter, 2076 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 1159 SdHoareTripleChecker+Invalid, 2154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 2076 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:31:18,147 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [310 Valid, 1159 Invalid, 2154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 2076 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:31:18,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6190 states. [2022-03-03 20:31:18,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6190 to 5576. [2022-03-03 20:31:18,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5576 states, 5575 states have (on average 3.392286995515695) internal successors, (18912), 5575 states have internal predecessors, (18912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:18,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5576 states to 5576 states and 18912 transitions. [2022-03-03 20:31:18,254 INFO L78 Accepts]: Start accepts. Automaton has 5576 states and 18912 transitions. Word has length 39 [2022-03-03 20:31:18,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:31:18,254 INFO L470 AbstractCegarLoop]: Abstraction has 5576 states and 18912 transitions. [2022-03-03 20:31:18,254 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:18,254 INFO L276 IsEmpty]: Start isEmpty. Operand 5576 states and 18912 transitions. [2022-03-03 20:31:18,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:31:18,261 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:31:18,261 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:31:18,262 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable536 [2022-03-03 20:31:18,262 INFO L402 AbstractCegarLoop]: === Iteration 538 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:31:18,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:31:18,262 INFO L85 PathProgramCache]: Analyzing trace with hash 1525534410, now seen corresponding path program 538 times [2022-03-03 20:31:18,262 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:31:18,262 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118104653] [2022-03-03 20:31:18,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:31:18,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:31:18,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:31:18,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:31:18,513 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:31:18,513 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118104653] [2022-03-03 20:31:18,513 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118104653] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:31:18,513 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:31:18,513 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:31:18,513 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204921122] [2022-03-03 20:31:18,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:31:18,514 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:31:18,514 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:31:18,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:31:18,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:31:18,514 INFO L87 Difference]: Start difference. First operand 5576 states and 18912 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:20,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:31:20,087 INFO L93 Difference]: Finished difference Result 6221 states and 20685 transitions. [2022-03-03 20:31:20,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-03 20:31:20,087 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:31:20,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:31:20,098 INFO L225 Difference]: With dead ends: 6221 [2022-03-03 20:31:20,098 INFO L226 Difference]: Without dead ends: 6169 [2022-03-03 20:31:20,099 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1180 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=383, Invalid=4039, Unknown=0, NotChecked=0, Total=4422 [2022-03-03 20:31:20,099 INFO L933 BasicCegarLoop]: 106 mSDtfsCounter, 302 mSDsluCounter, 1372 mSDsCounter, 0 mSdLazyCounter, 1960 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 1148 SdHoareTripleChecker+Invalid, 2033 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 1960 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:31:20,099 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [302 Valid, 1148 Invalid, 2033 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 1960 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:31:20,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6169 states. [2022-03-03 20:31:20,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6169 to 5568. [2022-03-03 20:31:20,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5568 states, 5567 states have (on average 3.393569247350458) internal successors, (18892), 5567 states have internal predecessors, (18892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:20,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5568 states to 5568 states and 18892 transitions. [2022-03-03 20:31:20,170 INFO L78 Accepts]: Start accepts. Automaton has 5568 states and 18892 transitions. Word has length 39 [2022-03-03 20:31:20,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:31:20,170 INFO L470 AbstractCegarLoop]: Abstraction has 5568 states and 18892 transitions. [2022-03-03 20:31:20,170 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:20,170 INFO L276 IsEmpty]: Start isEmpty. Operand 5568 states and 18892 transitions. [2022-03-03 20:31:20,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:31:20,177 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:31:20,177 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:31:20,177 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable537 [2022-03-03 20:31:20,177 INFO L402 AbstractCegarLoop]: === Iteration 539 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:31:20,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:31:20,177 INFO L85 PathProgramCache]: Analyzing trace with hash -70351014, now seen corresponding path program 539 times [2022-03-03 20:31:20,177 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:31:20,177 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2149465] [2022-03-03 20:31:20,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:31:20,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:31:20,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:31:20,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:31:20,400 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:31:20,400 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2149465] [2022-03-03 20:31:20,400 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2149465] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:31:20,400 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:31:20,400 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:31:20,400 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141049025] [2022-03-03 20:31:20,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:31:20,401 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:31:20,401 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:31:20,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:31:20,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:31:20,401 INFO L87 Difference]: Start difference. First operand 5568 states and 18892 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:21,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:31:21,623 INFO L93 Difference]: Finished difference Result 6154 states and 20486 transitions. [2022-03-03 20:31:21,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-03-03 20:31:21,623 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:31:21,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:31:21,634 INFO L225 Difference]: With dead ends: 6154 [2022-03-03 20:31:21,634 INFO L226 Difference]: Without dead ends: 6099 [2022-03-03 20:31:21,634 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 752 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=314, Invalid=2878, Unknown=0, NotChecked=0, Total=3192 [2022-03-03 20:31:21,634 INFO L933 BasicCegarLoop]: 90 mSDtfsCounter, 250 mSDsluCounter, 1188 mSDsCounter, 0 mSdLazyCounter, 1616 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 940 SdHoareTripleChecker+Invalid, 1678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1616 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:31:21,634 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [250 Valid, 940 Invalid, 1678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 1616 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:31:21,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6099 states. [2022-03-03 20:31:21,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6099 to 5570. [2022-03-03 20:31:21,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5570 states, 5569 states have (on average 3.392889208116358) internal successors, (18895), 5569 states have internal predecessors, (18895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:21,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5570 states to 5570 states and 18895 transitions. [2022-03-03 20:31:21,726 INFO L78 Accepts]: Start accepts. Automaton has 5570 states and 18895 transitions. Word has length 39 [2022-03-03 20:31:21,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:31:21,726 INFO L470 AbstractCegarLoop]: Abstraction has 5570 states and 18895 transitions. [2022-03-03 20:31:21,726 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:21,726 INFO L276 IsEmpty]: Start isEmpty. Operand 5570 states and 18895 transitions. [2022-03-03 20:31:21,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:31:21,733 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:31:21,733 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:31:21,733 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable538 [2022-03-03 20:31:21,733 INFO L402 AbstractCegarLoop]: === Iteration 540 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:31:21,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:31:21,734 INFO L85 PathProgramCache]: Analyzing trace with hash 1102301208, now seen corresponding path program 540 times [2022-03-03 20:31:21,734 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:31:21,734 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71297162] [2022-03-03 20:31:21,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:31:21,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:31:21,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:31:21,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:31:21,959 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:31:21,959 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71297162] [2022-03-03 20:31:21,959 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71297162] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:31:21,959 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:31:21,959 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:31:21,959 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006546089] [2022-03-03 20:31:21,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:31:21,959 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:31:21,960 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:31:21,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:31:21,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:31:21,960 INFO L87 Difference]: Start difference. First operand 5570 states and 18895 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:23,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:31:23,076 INFO L93 Difference]: Finished difference Result 6092 states and 20341 transitions. [2022-03-03 20:31:23,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-03 20:31:23,076 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:31:23,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:31:23,088 INFO L225 Difference]: With dead ends: 6092 [2022-03-03 20:31:23,088 INFO L226 Difference]: Without dead ends: 6046 [2022-03-03 20:31:23,088 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 605 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=273, Invalid=2483, Unknown=0, NotChecked=0, Total=2756 [2022-03-03 20:31:23,089 INFO L933 BasicCegarLoop]: 87 mSDtfsCounter, 235 mSDsluCounter, 1168 mSDsCounter, 0 mSdLazyCounter, 1582 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 926 SdHoareTripleChecker+Invalid, 1631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:31:23,089 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [235 Valid, 926 Invalid, 1631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1582 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:31:23,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6046 states. [2022-03-03 20:31:23,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6046 to 5574. [2022-03-03 20:31:23,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5574 states, 5573 states have (on average 3.3918894670733897) internal successors, (18903), 5573 states have internal predecessors, (18903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:23,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5574 states to 5574 states and 18903 transitions. [2022-03-03 20:31:23,159 INFO L78 Accepts]: Start accepts. Automaton has 5574 states and 18903 transitions. Word has length 39 [2022-03-03 20:31:23,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:31:23,160 INFO L470 AbstractCegarLoop]: Abstraction has 5574 states and 18903 transitions. [2022-03-03 20:31:23,160 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:23,160 INFO L276 IsEmpty]: Start isEmpty. Operand 5574 states and 18903 transitions. [2022-03-03 20:31:23,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:31:23,167 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:31:23,167 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:31:23,167 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable539 [2022-03-03 20:31:23,167 INFO L402 AbstractCegarLoop]: === Iteration 541 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:31:23,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:31:23,167 INFO L85 PathProgramCache]: Analyzing trace with hash 854835046, now seen corresponding path program 541 times [2022-03-03 20:31:23,167 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:31:23,167 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557836804] [2022-03-03 20:31:23,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:31:23,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:31:23,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:31:23,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:31:23,387 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:31:23,387 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557836804] [2022-03-03 20:31:23,387 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557836804] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:31:23,387 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:31:23,387 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:31:23,387 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279865790] [2022-03-03 20:31:23,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:31:23,387 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:31:23,387 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:31:23,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:31:23,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:31:23,388 INFO L87 Difference]: Start difference. First operand 5574 states and 18903 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:24,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:31:24,517 INFO L93 Difference]: Finished difference Result 6085 states and 20318 transitions. [2022-03-03 20:31:24,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-03 20:31:24,517 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:31:24,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:31:24,528 INFO L225 Difference]: With dead ends: 6085 [2022-03-03 20:31:24,528 INFO L226 Difference]: Without dead ends: 6036 [2022-03-03 20:31:24,528 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 605 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=276, Invalid=2480, Unknown=0, NotChecked=0, Total=2756 [2022-03-03 20:31:24,528 INFO L933 BasicCegarLoop]: 88 mSDtfsCounter, 232 mSDsluCounter, 1192 mSDsCounter, 0 mSdLazyCounter, 1583 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 947 SdHoareTripleChecker+Invalid, 1636 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 1583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:31:24,529 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [232 Valid, 947 Invalid, 1636 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 1583 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:31:24,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6036 states. [2022-03-03 20:31:24,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6036 to 5564. [2022-03-03 20:31:24,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5564 states, 5563 states have (on average 3.3945712744921805) internal successors, (18884), 5563 states have internal predecessors, (18884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:24,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5564 states to 5564 states and 18884 transitions. [2022-03-03 20:31:24,618 INFO L78 Accepts]: Start accepts. Automaton has 5564 states and 18884 transitions. Word has length 39 [2022-03-03 20:31:24,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:31:24,618 INFO L470 AbstractCegarLoop]: Abstraction has 5564 states and 18884 transitions. [2022-03-03 20:31:24,618 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:24,618 INFO L276 IsEmpty]: Start isEmpty. Operand 5564 states and 18884 transitions. [2022-03-03 20:31:24,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:31:24,625 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:31:24,625 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:31:24,625 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable540 [2022-03-03 20:31:24,625 INFO L402 AbstractCegarLoop]: === Iteration 542 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:31:24,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:31:24,625 INFO L85 PathProgramCache]: Analyzing trace with hash 213766022, now seen corresponding path program 542 times [2022-03-03 20:31:24,626 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:31:24,626 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751882350] [2022-03-03 20:31:24,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:31:24,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:31:24,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:31:24,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:31:24,845 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:31:24,845 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751882350] [2022-03-03 20:31:24,845 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751882350] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:31:24,845 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:31:24,845 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:31:24,845 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966096860] [2022-03-03 20:31:24,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:31:24,845 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:31:24,845 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:31:24,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:31:24,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:31:24,846 INFO L87 Difference]: Start difference. First operand 5564 states and 18884 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:25,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:31:25,987 INFO L93 Difference]: Finished difference Result 6010 states and 20184 transitions. [2022-03-03 20:31:25,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-03 20:31:25,988 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:31:25,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:31:26,000 INFO L225 Difference]: With dead ends: 6010 [2022-03-03 20:31:26,000 INFO L226 Difference]: Without dead ends: 5943 [2022-03-03 20:31:26,000 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 685 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=283, Invalid=2687, Unknown=0, NotChecked=0, Total=2970 [2022-03-03 20:31:26,000 INFO L933 BasicCegarLoop]: 105 mSDtfsCounter, 268 mSDsluCounter, 1226 mSDsCounter, 0 mSdLazyCounter, 1781 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 1028 SdHoareTripleChecker+Invalid, 1843 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1781 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:31:26,000 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [268 Valid, 1028 Invalid, 1843 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 1781 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:31:26,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5943 states. [2022-03-03 20:31:26,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5943 to 5582. [2022-03-03 20:31:26,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5582 states, 5581 states have (on average 3.3922236158394554) internal successors, (18932), 5581 states have internal predecessors, (18932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:26,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5582 states to 5582 states and 18932 transitions. [2022-03-03 20:31:26,083 INFO L78 Accepts]: Start accepts. Automaton has 5582 states and 18932 transitions. Word has length 39 [2022-03-03 20:31:26,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:31:26,084 INFO L470 AbstractCegarLoop]: Abstraction has 5582 states and 18932 transitions. [2022-03-03 20:31:26,084 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:26,084 INFO L276 IsEmpty]: Start isEmpty. Operand 5582 states and 18932 transitions. [2022-03-03 20:31:26,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:31:26,092 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:31:26,092 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:31:26,092 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable541 [2022-03-03 20:31:26,092 INFO L402 AbstractCegarLoop]: === Iteration 543 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:31:26,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:31:26,092 INFO L85 PathProgramCache]: Analyzing trace with hash -1505849948, now seen corresponding path program 543 times [2022-03-03 20:31:26,092 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:31:26,092 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682438342] [2022-03-03 20:31:26,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:31:26,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:31:26,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:31:26,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:31:26,293 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:31:26,293 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682438342] [2022-03-03 20:31:26,293 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682438342] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:31:26,293 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:31:26,293 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:31:26,293 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050602688] [2022-03-03 20:31:26,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:31:26,293 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:31:26,293 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:31:26,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:31:26,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:31:26,294 INFO L87 Difference]: Start difference. First operand 5582 states and 18932 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:27,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:31:27,736 INFO L93 Difference]: Finished difference Result 6134 states and 20481 transitions. [2022-03-03 20:31:27,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-03-03 20:31:27,737 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:31:27,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:31:27,747 INFO L225 Difference]: With dead ends: 6134 [2022-03-03 20:31:27,747 INFO L226 Difference]: Without dead ends: 6091 [2022-03-03 20:31:27,747 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 957 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=334, Invalid=3448, Unknown=0, NotChecked=0, Total=3782 [2022-03-03 20:31:27,747 INFO L933 BasicCegarLoop]: 108 mSDtfsCounter, 292 mSDsluCounter, 1340 mSDsCounter, 0 mSdLazyCounter, 2083 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 292 SdHoareTripleChecker+Valid, 1115 SdHoareTripleChecker+Invalid, 2148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 2083 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:31:27,747 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [292 Valid, 1115 Invalid, 2148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 2083 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:31:27,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6091 states. [2022-03-03 20:31:27,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6091 to 5588. [2022-03-03 20:31:27,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5588 states, 5587 states have (on average 3.3909074637551457) internal successors, (18945), 5587 states have internal predecessors, (18945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:27,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5588 states to 5588 states and 18945 transitions. [2022-03-03 20:31:27,816 INFO L78 Accepts]: Start accepts. Automaton has 5588 states and 18945 transitions. Word has length 39 [2022-03-03 20:31:27,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:31:27,816 INFO L470 AbstractCegarLoop]: Abstraction has 5588 states and 18945 transitions. [2022-03-03 20:31:27,816 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:27,816 INFO L276 IsEmpty]: Start isEmpty. Operand 5588 states and 18945 transitions. [2022-03-03 20:31:27,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:31:27,823 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:31:27,823 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:31:27,823 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable542 [2022-03-03 20:31:27,823 INFO L402 AbstractCegarLoop]: === Iteration 544 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:31:27,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:31:27,823 INFO L85 PathProgramCache]: Analyzing trace with hash 1008519046, now seen corresponding path program 544 times [2022-03-03 20:31:27,823 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:31:27,823 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205016162] [2022-03-03 20:31:27,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:31:27,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:31:27,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:31:28,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:31:28,011 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:31:28,011 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205016162] [2022-03-03 20:31:28,011 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205016162] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:31:28,011 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:31:28,011 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:31:28,012 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491201508] [2022-03-03 20:31:28,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:31:28,012 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:31:28,012 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:31:28,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:31:28,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:31:28,012 INFO L87 Difference]: Start difference. First operand 5588 states and 18945 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:29,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:31:29,336 INFO L93 Difference]: Finished difference Result 6083 states and 20358 transitions. [2022-03-03 20:31:29,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-03-03 20:31:29,336 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:31:29,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:31:29,347 INFO L225 Difference]: With dead ends: 6083 [2022-03-03 20:31:29,347 INFO L226 Difference]: Without dead ends: 6019 [2022-03-03 20:31:29,348 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 832 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=303, Invalid=3119, Unknown=0, NotChecked=0, Total=3422 [2022-03-03 20:31:29,348 INFO L933 BasicCegarLoop]: 106 mSDtfsCounter, 277 mSDsluCounter, 1321 mSDsCounter, 0 mSdLazyCounter, 1977 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 1098 SdHoareTripleChecker+Invalid, 2041 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 1977 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:31:29,348 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [277 Valid, 1098 Invalid, 2041 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 1977 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:31:29,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6019 states. [2022-03-03 20:31:29,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6019 to 5564. [2022-03-03 20:31:29,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5564 states, 5563 states have (on average 3.3945712744921805) internal successors, (18884), 5563 states have internal predecessors, (18884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:29,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5564 states to 5564 states and 18884 transitions. [2022-03-03 20:31:29,421 INFO L78 Accepts]: Start accepts. Automaton has 5564 states and 18884 transitions. Word has length 39 [2022-03-03 20:31:29,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:31:29,421 INFO L470 AbstractCegarLoop]: Abstraction has 5564 states and 18884 transitions. [2022-03-03 20:31:29,421 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:29,421 INFO L276 IsEmpty]: Start isEmpty. Operand 5564 states and 18884 transitions. [2022-03-03 20:31:29,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:31:29,428 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:31:29,428 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:31:29,428 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable543 [2022-03-03 20:31:29,428 INFO L402 AbstractCegarLoop]: === Iteration 545 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:31:29,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:31:29,428 INFO L85 PathProgramCache]: Analyzing trace with hash -1981592954, now seen corresponding path program 545 times [2022-03-03 20:31:29,428 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:31:29,428 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265251685] [2022-03-03 20:31:29,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:31:29,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:31:29,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:31:29,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:31:29,666 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:31:29,666 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265251685] [2022-03-03 20:31:29,666 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265251685] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:31:29,666 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:31:29,666 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:31:29,666 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684097835] [2022-03-03 20:31:29,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:31:29,667 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:31:29,667 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:31:29,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:31:29,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:31:29,667 INFO L87 Difference]: Start difference. First operand 5564 states and 18884 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:30,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:31:30,868 INFO L93 Difference]: Finished difference Result 5992 states and 20133 transitions. [2022-03-03 20:31:30,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-03 20:31:30,869 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:31:30,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:31:30,879 INFO L225 Difference]: With dead ends: 5992 [2022-03-03 20:31:30,879 INFO L226 Difference]: Without dead ends: 5925 [2022-03-03 20:31:30,879 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 684 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=273, Invalid=2697, Unknown=0, NotChecked=0, Total=2970 [2022-03-03 20:31:30,880 INFO L933 BasicCegarLoop]: 104 mSDtfsCounter, 252 mSDsluCounter, 1222 mSDsCounter, 0 mSdLazyCounter, 1776 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 1023 SdHoareTripleChecker+Invalid, 1838 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:31:30,880 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [252 Valid, 1023 Invalid, 1838 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 1776 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:31:30,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5925 states. [2022-03-03 20:31:30,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5925 to 5582. [2022-03-03 20:31:30,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5582 states, 5581 states have (on average 3.3911485396882277) internal successors, (18926), 5581 states have internal predecessors, (18926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:30,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5582 states to 5582 states and 18926 transitions. [2022-03-03 20:31:30,947 INFO L78 Accepts]: Start accepts. Automaton has 5582 states and 18926 transitions. Word has length 39 [2022-03-03 20:31:30,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:31:30,947 INFO L470 AbstractCegarLoop]: Abstraction has 5582 states and 18926 transitions. [2022-03-03 20:31:30,947 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:30,947 INFO L276 IsEmpty]: Start isEmpty. Operand 5582 states and 18926 transitions. [2022-03-03 20:31:30,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:31:30,955 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:31:30,955 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:31:30,955 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable544 [2022-03-03 20:31:30,955 INFO L402 AbstractCegarLoop]: === Iteration 546 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:31:30,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:31:30,955 INFO L85 PathProgramCache]: Analyzing trace with hash -1623522746, now seen corresponding path program 546 times [2022-03-03 20:31:30,955 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:31:30,955 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177059244] [2022-03-03 20:31:30,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:31:30,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:31:30,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:31:31,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:31:31,159 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:31:31,159 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177059244] [2022-03-03 20:31:31,159 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177059244] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:31:31,159 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:31:31,159 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:31:31,159 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049416945] [2022-03-03 20:31:31,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:31:31,160 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:31:31,160 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:31:31,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:31:31,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:31:31,160 INFO L87 Difference]: Start difference. First operand 5582 states and 18926 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:31,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:31:31,893 INFO L93 Difference]: Finished difference Result 5995 states and 20090 transitions. [2022-03-03 20:31:31,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-03 20:31:31,893 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:31:31,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:31:31,904 INFO L225 Difference]: With dead ends: 5995 [2022-03-03 20:31:31,904 INFO L226 Difference]: Without dead ends: 5952 [2022-03-03 20:31:31,904 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 481 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=222, Invalid=2130, Unknown=0, NotChecked=0, Total=2352 [2022-03-03 20:31:31,904 INFO L933 BasicCegarLoop]: 89 mSDtfsCounter, 222 mSDsluCounter, 1121 mSDsCounter, 0 mSdLazyCounter, 1621 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 891 SdHoareTripleChecker+Invalid, 1663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 1621 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 20:31:31,905 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [222 Valid, 891 Invalid, 1663 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 1621 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 20:31:31,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5952 states. [2022-03-03 20:31:31,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5952 to 5600. [2022-03-03 20:31:31,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5600 states, 5599 states have (on average 3.3872120021432397) internal successors, (18965), 5599 states have internal predecessors, (18965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:31,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5600 states to 5600 states and 18965 transitions. [2022-03-03 20:31:31,973 INFO L78 Accepts]: Start accepts. Automaton has 5600 states and 18965 transitions. Word has length 39 [2022-03-03 20:31:31,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:31:31,973 INFO L470 AbstractCegarLoop]: Abstraction has 5600 states and 18965 transitions. [2022-03-03 20:31:31,973 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:31,973 INFO L276 IsEmpty]: Start isEmpty. Operand 5600 states and 18965 transitions. [2022-03-03 20:31:31,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:31:31,980 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:31:31,980 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:31:31,980 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable545 [2022-03-03 20:31:31,981 INFO L402 AbstractCegarLoop]: === Iteration 547 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:31:31,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:31:31,981 INFO L85 PathProgramCache]: Analyzing trace with hash -793991576, now seen corresponding path program 547 times [2022-03-03 20:31:31,981 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:31:31,981 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333979370] [2022-03-03 20:31:31,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:31:31,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:31:31,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:31:32,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:31:32,124 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:31:32,124 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333979370] [2022-03-03 20:31:32,124 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333979370] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:31:32,124 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:31:32,124 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:31:32,124 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46684669] [2022-03-03 20:31:32,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:31:32,124 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:31:32,124 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:31:32,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:31:32,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:31:32,125 INFO L87 Difference]: Start difference. First operand 5600 states and 18965 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:32,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:31:32,898 INFO L93 Difference]: Finished difference Result 5950 states and 19986 transitions. [2022-03-03 20:31:32,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-03-03 20:31:32,898 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:31:32,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:31:32,908 INFO L225 Difference]: With dead ends: 5950 [2022-03-03 20:31:32,908 INFO L226 Difference]: Without dead ends: 5887 [2022-03-03 20:31:32,908 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 549 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=234, Invalid=2316, Unknown=0, NotChecked=0, Total=2550 [2022-03-03 20:31:32,908 INFO L933 BasicCegarLoop]: 93 mSDtfsCounter, 232 mSDsluCounter, 1147 mSDsCounter, 0 mSdLazyCounter, 1661 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 914 SdHoareTripleChecker+Invalid, 1714 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 1661 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 20:31:32,909 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [232 Valid, 914 Invalid, 1714 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 1661 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 20:31:32,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5887 states. [2022-03-03 20:31:32,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5887 to 5582. [2022-03-03 20:31:32,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5582 states, 5581 states have (on average 3.3900734635370005) internal successors, (18920), 5581 states have internal predecessors, (18920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:32,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5582 states to 5582 states and 18920 transitions. [2022-03-03 20:31:32,973 INFO L78 Accepts]: Start accepts. Automaton has 5582 states and 18920 transitions. Word has length 39 [2022-03-03 20:31:32,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:31:32,973 INFO L470 AbstractCegarLoop]: Abstraction has 5582 states and 18920 transitions. [2022-03-03 20:31:32,974 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:32,974 INFO L276 IsEmpty]: Start isEmpty. Operand 5582 states and 18920 transitions. [2022-03-03 20:31:32,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:31:32,981 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:31:32,981 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:31:32,981 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable546 [2022-03-03 20:31:32,981 INFO L402 AbstractCegarLoop]: === Iteration 548 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:31:32,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:31:32,981 INFO L85 PathProgramCache]: Analyzing trace with hash 4782308, now seen corresponding path program 548 times [2022-03-03 20:31:32,981 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:31:32,981 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425021013] [2022-03-03 20:31:32,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:31:32,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:31:32,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:31:33,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:31:33,171 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:31:33,171 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425021013] [2022-03-03 20:31:33,171 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425021013] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:31:33,171 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:31:33,171 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:31:33,171 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951940155] [2022-03-03 20:31:33,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:31:33,171 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:31:33,171 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:31:33,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:31:33,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:31:33,171 INFO L87 Difference]: Start difference. First operand 5582 states and 18920 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:34,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:31:34,460 INFO L93 Difference]: Finished difference Result 6140 states and 20454 transitions. [2022-03-03 20:31:34,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-03-03 20:31:34,461 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:31:34,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:31:34,471 INFO L225 Difference]: With dead ends: 6140 [2022-03-03 20:31:34,472 INFO L226 Difference]: Without dead ends: 6097 [2022-03-03 20:31:34,472 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 871 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=305, Invalid=3235, Unknown=0, NotChecked=0, Total=3540 [2022-03-03 20:31:34,472 INFO L933 BasicCegarLoop]: 108 mSDtfsCounter, 278 mSDsluCounter, 1365 mSDsCounter, 0 mSdLazyCounter, 2107 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 1128 SdHoareTripleChecker+Invalid, 2160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 2107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:31:34,472 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [278 Valid, 1128 Invalid, 2160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 2107 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:31:34,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6097 states. [2022-03-03 20:31:34,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6097 to 5591. [2022-03-03 20:31:34,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5591 states, 5590 states have (on average 3.3889087656529515) internal successors, (18944), 5590 states have internal predecessors, (18944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:34,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5591 states to 5591 states and 18944 transitions. [2022-03-03 20:31:34,542 INFO L78 Accepts]: Start accepts. Automaton has 5591 states and 18944 transitions. Word has length 39 [2022-03-03 20:31:34,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:31:34,542 INFO L470 AbstractCegarLoop]: Abstraction has 5591 states and 18944 transitions. [2022-03-03 20:31:34,542 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:34,542 INFO L276 IsEmpty]: Start isEmpty. Operand 5591 states and 18944 transitions. [2022-03-03 20:31:34,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:31:34,549 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:31:34,549 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:31:34,549 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable547 [2022-03-03 20:31:34,549 INFO L402 AbstractCegarLoop]: === Iteration 549 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:31:34,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:31:34,550 INFO L85 PathProgramCache]: Analyzing trace with hash -1775815994, now seen corresponding path program 549 times [2022-03-03 20:31:34,550 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:31:34,550 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754350468] [2022-03-03 20:31:34,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:31:34,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:31:34,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:31:34,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:31:34,751 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:31:34,751 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754350468] [2022-03-03 20:31:34,751 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754350468] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:31:34,751 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:31:34,751 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:31:34,751 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029256780] [2022-03-03 20:31:34,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:31:34,751 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:31:34,751 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:31:34,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:31:34,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:31:34,752 INFO L87 Difference]: Start difference. First operand 5591 states and 18944 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:35,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:31:35,798 INFO L93 Difference]: Finished difference Result 6143 states and 20455 transitions. [2022-03-03 20:31:35,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-03-03 20:31:35,798 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:31:35,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:31:35,810 INFO L225 Difference]: With dead ends: 6143 [2022-03-03 20:31:35,810 INFO L226 Difference]: Without dead ends: 6091 [2022-03-03 20:31:35,810 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 829 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=291, Invalid=3131, Unknown=0, NotChecked=0, Total=3422 [2022-03-03 20:31:35,811 INFO L933 BasicCegarLoop]: 108 mSDtfsCounter, 270 mSDsluCounter, 1374 mSDsCounter, 0 mSdLazyCounter, 2011 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 1139 SdHoareTripleChecker+Invalid, 2063 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 2011 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:31:35,811 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [270 Valid, 1139 Invalid, 2063 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 2011 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:31:35,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6091 states. [2022-03-03 20:31:35,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6091 to 5585. [2022-03-03 20:31:35,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5585 states, 5584 states have (on average 3.3896848137535818) internal successors, (18928), 5584 states have internal predecessors, (18928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:35,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5585 states to 5585 states and 18928 transitions. [2022-03-03 20:31:35,902 INFO L78 Accepts]: Start accepts. Automaton has 5585 states and 18928 transitions. Word has length 39 [2022-03-03 20:31:35,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:31:35,902 INFO L470 AbstractCegarLoop]: Abstraction has 5585 states and 18928 transitions. [2022-03-03 20:31:35,902 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:35,902 INFO L276 IsEmpty]: Start isEmpty. Operand 5585 states and 18928 transitions. [2022-03-03 20:31:35,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:31:35,911 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:31:35,911 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:31:35,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable548 [2022-03-03 20:31:35,911 INFO L402 AbstractCegarLoop]: === Iteration 550 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:31:35,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:31:35,911 INFO L85 PathProgramCache]: Analyzing trace with hash -1532636922, now seen corresponding path program 550 times [2022-03-03 20:31:35,911 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:31:35,911 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915762772] [2022-03-03 20:31:35,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:31:35,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:31:35,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:31:36,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:31:36,102 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:31:36,102 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915762772] [2022-03-03 20:31:36,102 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915762772] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:31:36,102 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:31:36,102 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:31:36,102 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787773810] [2022-03-03 20:31:36,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:31:36,102 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:31:36,102 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:31:36,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:31:36,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:31:36,102 INFO L87 Difference]: Start difference. First operand 5585 states and 18928 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:37,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:31:37,017 INFO L93 Difference]: Finished difference Result 6082 states and 20274 transitions. [2022-03-03 20:31:37,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-03 20:31:37,017 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:31:37,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:31:37,029 INFO L225 Difference]: With dead ends: 6082 [2022-03-03 20:31:37,029 INFO L226 Difference]: Without dead ends: 6039 [2022-03-03 20:31:37,030 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 481 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=223, Invalid=2129, Unknown=0, NotChecked=0, Total=2352 [2022-03-03 20:31:37,030 INFO L933 BasicCegarLoop]: 88 mSDtfsCounter, 244 mSDsluCounter, 1150 mSDsCounter, 0 mSdLazyCounter, 1643 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 892 SdHoareTripleChecker+Invalid, 1685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 1643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:31:37,030 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [244 Valid, 892 Invalid, 1685 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 1643 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:31:37,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6039 states. [2022-03-03 20:31:37,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6039 to 5594. [2022-03-03 20:31:37,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5594 states, 5593 states have (on average 3.3879849812265332) internal successors, (18949), 5593 states have internal predecessors, (18949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:37,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5594 states to 5594 states and 18949 transitions. [2022-03-03 20:31:37,116 INFO L78 Accepts]: Start accepts. Automaton has 5594 states and 18949 transitions. Word has length 39 [2022-03-03 20:31:37,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:31:37,116 INFO L470 AbstractCegarLoop]: Abstraction has 5594 states and 18949 transitions. [2022-03-03 20:31:37,116 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:37,116 INFO L276 IsEmpty]: Start isEmpty. Operand 5594 states and 18949 transitions. [2022-03-03 20:31:37,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:31:37,124 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:31:37,124 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:31:37,124 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable549 [2022-03-03 20:31:37,124 INFO L402 AbstractCegarLoop]: === Iteration 551 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:31:37,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:31:37,125 INFO L85 PathProgramCache]: Analyzing trace with hash 217470214, now seen corresponding path program 551 times [2022-03-03 20:31:37,125 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:31:37,125 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247028148] [2022-03-03 20:31:37,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:31:37,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:31:37,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:31:37,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:31:37,361 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:31:37,361 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247028148] [2022-03-03 20:31:37,361 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247028148] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:31:37,361 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:31:37,361 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:31:37,361 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830001791] [2022-03-03 20:31:37,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:31:37,362 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:31:37,362 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:31:37,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:31:37,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:31:37,362 INFO L87 Difference]: Start difference. First operand 5594 states and 18949 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:38,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:31:38,346 INFO L93 Difference]: Finished difference Result 6051 states and 20207 transitions. [2022-03-03 20:31:38,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-03-03 20:31:38,346 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:31:38,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:31:38,357 INFO L225 Difference]: With dead ends: 6051 [2022-03-03 20:31:38,357 INFO L226 Difference]: Without dead ends: 6000 [2022-03-03 20:31:38,357 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 549 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=235, Invalid=2315, Unknown=0, NotChecked=0, Total=2550 [2022-03-03 20:31:38,357 INFO L933 BasicCegarLoop]: 89 mSDtfsCounter, 240 mSDsluCounter, 1159 mSDsCounter, 0 mSdLazyCounter, 1650 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 904 SdHoareTripleChecker+Invalid, 1703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 1650 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:31:38,357 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [240 Valid, 904 Invalid, 1703 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 1650 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:31:38,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6000 states. [2022-03-03 20:31:38,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6000 to 5588. [2022-03-03 20:31:38,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5588 states, 5587 states have (on average 3.3887596205477) internal successors, (18933), 5587 states have internal predecessors, (18933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:38,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5588 states to 5588 states and 18933 transitions. [2022-03-03 20:31:38,423 INFO L78 Accepts]: Start accepts. Automaton has 5588 states and 18933 transitions. Word has length 39 [2022-03-03 20:31:38,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:31:38,423 INFO L470 AbstractCegarLoop]: Abstraction has 5588 states and 18933 transitions. [2022-03-03 20:31:38,423 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:38,423 INFO L276 IsEmpty]: Start isEmpty. Operand 5588 states and 18933 transitions. [2022-03-03 20:31:38,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:31:38,430 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:31:38,430 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:31:38,430 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable550 [2022-03-03 20:31:38,430 INFO L402 AbstractCegarLoop]: === Iteration 552 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:31:38,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:31:38,431 INFO L85 PathProgramCache]: Analyzing trace with hash 834688616, now seen corresponding path program 552 times [2022-03-03 20:31:38,431 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:31:38,431 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169894704] [2022-03-03 20:31:38,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:31:38,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:31:38,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:31:38,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:31:38,650 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:31:38,650 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169894704] [2022-03-03 20:31:38,650 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169894704] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:31:38,650 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:31:38,650 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:31:38,650 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364181610] [2022-03-03 20:31:38,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:31:38,650 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:31:38,650 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:31:38,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:31:38,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:31:38,650 INFO L87 Difference]: Start difference. First operand 5588 states and 18933 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:39,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:31:39,543 INFO L93 Difference]: Finished difference Result 6017 states and 20117 transitions. [2022-03-03 20:31:39,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 20:31:39,543 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:31:39,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:31:39,554 INFO L225 Difference]: With dead ends: 6017 [2022-03-03 20:31:39,554 INFO L226 Difference]: Without dead ends: 5971 [2022-03-03 20:31:39,554 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 421 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=202, Invalid=1960, Unknown=0, NotChecked=0, Total=2162 [2022-03-03 20:31:39,554 INFO L933 BasicCegarLoop]: 89 mSDtfsCounter, 221 mSDsluCounter, 1153 mSDsCounter, 0 mSdLazyCounter, 1641 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 902 SdHoareTripleChecker+Invalid, 1681 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1641 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:31:39,554 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [221 Valid, 902 Invalid, 1681 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1641 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:31:39,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5971 states. [2022-03-03 20:31:39,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5971 to 5595. [2022-03-03 20:31:39,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5595 states, 5594 states have (on average 3.387200572041473) internal successors, (18948), 5594 states have internal predecessors, (18948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:39,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5595 states to 5595 states and 18948 transitions. [2022-03-03 20:31:39,622 INFO L78 Accepts]: Start accepts. Automaton has 5595 states and 18948 transitions. Word has length 39 [2022-03-03 20:31:39,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:31:39,622 INFO L470 AbstractCegarLoop]: Abstraction has 5595 states and 18948 transitions. [2022-03-03 20:31:39,622 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:39,622 INFO L276 IsEmpty]: Start isEmpty. Operand 5595 states and 18948 transitions. [2022-03-03 20:31:39,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:31:39,629 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:31:39,629 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:31:39,629 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable551 [2022-03-03 20:31:39,629 INFO L402 AbstractCegarLoop]: === Iteration 553 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:31:39,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:31:39,629 INFO L85 PathProgramCache]: Analyzing trace with hash -600378874, now seen corresponding path program 553 times [2022-03-03 20:31:39,629 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:31:39,629 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543243293] [2022-03-03 20:31:39,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:31:39,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:31:39,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:31:39,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:31:39,831 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:31:39,831 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543243293] [2022-03-03 20:31:39,831 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543243293] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:31:39,831 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:31:39,831 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:31:39,831 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115719945] [2022-03-03 20:31:39,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:31:39,832 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:31:39,832 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:31:39,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:31:39,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:31:39,832 INFO L87 Difference]: Start difference. First operand 5595 states and 18948 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:40,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:31:40,663 INFO L93 Difference]: Finished difference Result 5983 states and 20042 transitions. [2022-03-03 20:31:40,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-03 20:31:40,663 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:31:40,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:31:40,675 INFO L225 Difference]: With dead ends: 5983 [2022-03-03 20:31:40,675 INFO L226 Difference]: Without dead ends: 5922 [2022-03-03 20:31:40,675 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 514 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=226, Invalid=2224, Unknown=0, NotChecked=0, Total=2450 [2022-03-03 20:31:40,675 INFO L933 BasicCegarLoop]: 90 mSDtfsCounter, 232 mSDsluCounter, 1140 mSDsCounter, 0 mSdLazyCounter, 1633 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 900 SdHoareTripleChecker+Invalid, 1681 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 1633 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 20:31:40,676 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [232 Valid, 900 Invalid, 1681 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 1633 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 20:31:40,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5922 states. [2022-03-03 20:31:40,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5922 to 5579. [2022-03-03 20:31:40,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5579 states, 5578 states have (on average 3.3911796342775187) internal successors, (18916), 5578 states have internal predecessors, (18916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:40,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5579 states to 5579 states and 18916 transitions. [2022-03-03 20:31:40,753 INFO L78 Accepts]: Start accepts. Automaton has 5579 states and 18916 transitions. Word has length 39 [2022-03-03 20:31:40,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:31:40,753 INFO L470 AbstractCegarLoop]: Abstraction has 5579 states and 18916 transitions. [2022-03-03 20:31:40,753 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:40,753 INFO L276 IsEmpty]: Start isEmpty. Operand 5579 states and 18916 transitions. [2022-03-03 20:31:40,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:31:40,762 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:31:40,762 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:31:40,762 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable552 [2022-03-03 20:31:40,762 INFO L402 AbstractCegarLoop]: === Iteration 554 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:31:40,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:31:40,762 INFO L85 PathProgramCache]: Analyzing trace with hash 1407418280, now seen corresponding path program 554 times [2022-03-03 20:31:40,762 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:31:40,762 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932526321] [2022-03-03 20:31:40,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:31:40,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:31:40,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:31:41,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:31:41,002 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:31:41,002 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932526321] [2022-03-03 20:31:41,002 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932526321] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:31:41,002 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:31:41,002 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:31:41,002 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144686554] [2022-03-03 20:31:41,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:31:41,002 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:31:41,002 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:31:41,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:31:41,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:31:41,003 INFO L87 Difference]: Start difference. First operand 5579 states and 18916 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:42,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:31:42,038 INFO L93 Difference]: Finished difference Result 5960 states and 20009 transitions. [2022-03-03 20:31:42,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-03 20:31:42,038 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:31:42,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:31:42,049 INFO L225 Difference]: With dead ends: 5960 [2022-03-03 20:31:42,049 INFO L226 Difference]: Without dead ends: 5897 [2022-03-03 20:31:42,049 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 619 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=268, Invalid=2488, Unknown=0, NotChecked=0, Total=2756 [2022-03-03 20:31:42,049 INFO L933 BasicCegarLoop]: 90 mSDtfsCounter, 222 mSDsluCounter, 1093 mSDsCounter, 0 mSdLazyCounter, 1561 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 901 SdHoareTripleChecker+Invalid, 1617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1561 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:31:42,050 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [222 Valid, 901 Invalid, 1617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1561 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:31:42,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5897 states. [2022-03-03 20:31:42,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5897 to 5583. [2022-03-03 20:31:42,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5583 states, 5582 states have (on average 3.3905410247223218) internal successors, (18926), 5582 states have internal predecessors, (18926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:42,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5583 states to 5583 states and 18926 transitions. [2022-03-03 20:31:42,118 INFO L78 Accepts]: Start accepts. Automaton has 5583 states and 18926 transitions. Word has length 39 [2022-03-03 20:31:42,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:31:42,118 INFO L470 AbstractCegarLoop]: Abstraction has 5583 states and 18926 transitions. [2022-03-03 20:31:42,118 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:42,119 INFO L276 IsEmpty]: Start isEmpty. Operand 5583 states and 18926 transitions. [2022-03-03 20:31:42,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:31:42,125 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:31:42,125 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:31:42,126 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable553 [2022-03-03 20:31:42,126 INFO L402 AbstractCegarLoop]: === Iteration 555 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:31:42,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:31:42,126 INFO L85 PathProgramCache]: Analyzing trace with hash 1161926182, now seen corresponding path program 555 times [2022-03-03 20:31:42,126 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:31:42,126 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367301452] [2022-03-03 20:31:42,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:31:42,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:31:42,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:31:42,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:31:42,338 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:31:42,338 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367301452] [2022-03-03 20:31:42,338 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367301452] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:31:42,338 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:31:42,338 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:31:42,338 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446202089] [2022-03-03 20:31:42,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:31:42,338 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:31:42,338 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:31:42,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:31:42,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:31:42,338 INFO L87 Difference]: Start difference. First operand 5583 states and 18926 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:43,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:31:43,093 INFO L93 Difference]: Finished difference Result 6011 states and 20130 transitions. [2022-03-03 20:31:43,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-03 20:31:43,093 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:31:43,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:31:43,106 INFO L225 Difference]: With dead ends: 6011 [2022-03-03 20:31:43,106 INFO L226 Difference]: Without dead ends: 5968 [2022-03-03 20:31:43,106 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 549 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=241, Invalid=2309, Unknown=0, NotChecked=0, Total=2550 [2022-03-03 20:31:43,106 INFO L933 BasicCegarLoop]: 88 mSDtfsCounter, 240 mSDsluCounter, 1112 mSDsCounter, 0 mSdLazyCounter, 1599 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 890 SdHoareTripleChecker+Invalid, 1647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 1599 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 20:31:43,106 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [240 Valid, 890 Invalid, 1647 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 1599 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 20:31:43,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5968 states. [2022-03-03 20:31:43,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5968 to 5601. [2022-03-03 20:31:43,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5601 states, 5600 states have (on average 3.3866071428571427) internal successors, (18965), 5600 states have internal predecessors, (18965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:43,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5601 states to 5601 states and 18965 transitions. [2022-03-03 20:31:43,199 INFO L78 Accepts]: Start accepts. Automaton has 5601 states and 18965 transitions. Word has length 39 [2022-03-03 20:31:43,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:31:43,199 INFO L470 AbstractCegarLoop]: Abstraction has 5601 states and 18965 transitions. [2022-03-03 20:31:43,199 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:43,199 INFO L276 IsEmpty]: Start isEmpty. Operand 5601 states and 18965 transitions. [2022-03-03 20:31:43,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:31:43,206 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:31:43,206 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:31:43,206 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable554 [2022-03-03 20:31:43,206 INFO L402 AbstractCegarLoop]: === Iteration 556 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:31:43,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:31:43,206 INFO L85 PathProgramCache]: Analyzing trace with hash 1991457352, now seen corresponding path program 556 times [2022-03-03 20:31:43,206 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:31:43,206 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783896405] [2022-03-03 20:31:43,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:31:43,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:31:43,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:31:43,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:31:43,402 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:31:43,402 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783896405] [2022-03-03 20:31:43,402 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783896405] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:31:43,402 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:31:43,402 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:31:43,402 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711887578] [2022-03-03 20:31:43,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:31:43,402 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:31:43,402 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:31:43,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:31:43,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:31:43,403 INFO L87 Difference]: Start difference. First operand 5601 states and 18965 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:44,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:31:44,250 INFO L93 Difference]: Finished difference Result 5948 states and 19975 transitions. [2022-03-03 20:31:44,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-03-03 20:31:44,251 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:31:44,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:31:44,262 INFO L225 Difference]: With dead ends: 5948 [2022-03-03 20:31:44,262 INFO L226 Difference]: Without dead ends: 5885 [2022-03-03 20:31:44,263 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 516 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=225, Invalid=2225, Unknown=0, NotChecked=0, Total=2450 [2022-03-03 20:31:44,263 INFO L933 BasicCegarLoop]: 91 mSDtfsCounter, 215 mSDsluCounter, 1131 mSDsCounter, 0 mSdLazyCounter, 1628 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 904 SdHoareTripleChecker+Invalid, 1678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 1628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 20:31:44,263 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [215 Valid, 904 Invalid, 1678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 1628 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 20:31:44,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5885 states. [2022-03-03 20:31:44,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5885 to 5583. [2022-03-03 20:31:44,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5583 states, 5582 states have (on average 3.389824435686134) internal successors, (18922), 5582 states have internal predecessors, (18922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:44,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5583 states to 5583 states and 18922 transitions. [2022-03-03 20:31:44,340 INFO L78 Accepts]: Start accepts. Automaton has 5583 states and 18922 transitions. Word has length 39 [2022-03-03 20:31:44,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:31:44,340 INFO L470 AbstractCegarLoop]: Abstraction has 5583 states and 18922 transitions. [2022-03-03 20:31:44,340 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:44,340 INFO L276 IsEmpty]: Start isEmpty. Operand 5583 states and 18922 transitions. [2022-03-03 20:31:44,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:31:44,348 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:31:44,348 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:31:44,348 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable555 [2022-03-03 20:31:44,348 INFO L402 AbstractCegarLoop]: === Iteration 557 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:31:44,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:31:44,348 INFO L85 PathProgramCache]: Analyzing trace with hash -21778456, now seen corresponding path program 557 times [2022-03-03 20:31:44,348 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:31:44,348 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129330911] [2022-03-03 20:31:44,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:31:44,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:31:44,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:31:44,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:31:44,533 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:31:44,533 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129330911] [2022-03-03 20:31:44,533 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129330911] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:31:44,533 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:31:44,533 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:31:44,533 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367764684] [2022-03-03 20:31:44,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:31:44,534 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:31:44,534 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:31:44,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:31:44,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:31:44,534 INFO L87 Difference]: Start difference. First operand 5583 states and 18922 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:45,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:31:45,591 INFO L93 Difference]: Finished difference Result 6052 states and 20218 transitions. [2022-03-03 20:31:45,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-03-03 20:31:45,591 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:31:45,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:31:45,602 INFO L225 Difference]: With dead ends: 6052 [2022-03-03 20:31:45,602 INFO L226 Difference]: Without dead ends: 5997 [2022-03-03 20:31:45,603 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 652 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=272, Invalid=2590, Unknown=0, NotChecked=0, Total=2862 [2022-03-03 20:31:45,603 INFO L933 BasicCegarLoop]: 90 mSDtfsCounter, 248 mSDsluCounter, 1144 mSDsCounter, 0 mSdLazyCounter, 1629 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 921 SdHoareTripleChecker+Invalid, 1682 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 1629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:31:45,603 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [248 Valid, 921 Invalid, 1682 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 1629 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:31:45,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5997 states. [2022-03-03 20:31:45,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5997 to 5585. [2022-03-03 20:31:45,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5585 states, 5584 states have (on average 3.389505730659026) internal successors, (18927), 5584 states have internal predecessors, (18927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:45,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5585 states to 5585 states and 18927 transitions. [2022-03-03 20:31:45,694 INFO L78 Accepts]: Start accepts. Automaton has 5585 states and 18927 transitions. Word has length 39 [2022-03-03 20:31:45,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:31:45,694 INFO L470 AbstractCegarLoop]: Abstraction has 5585 states and 18927 transitions. [2022-03-03 20:31:45,694 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:45,694 INFO L276 IsEmpty]: Start isEmpty. Operand 5585 states and 18927 transitions. [2022-03-03 20:31:45,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:31:45,701 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:31:45,701 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:31:45,701 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable556 [2022-03-03 20:31:45,701 INFO L402 AbstractCegarLoop]: === Iteration 558 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:31:45,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:31:45,701 INFO L85 PathProgramCache]: Analyzing trace with hash 1315279558, now seen corresponding path program 558 times [2022-03-03 20:31:45,702 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:31:45,702 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46619194] [2022-03-03 20:31:45,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:31:45,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:31:45,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:31:45,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:31:45,918 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:31:45,918 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46619194] [2022-03-03 20:31:45,918 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46619194] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:31:45,918 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:31:45,918 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:31:45,918 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116060029] [2022-03-03 20:31:45,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:31:45,918 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:31:45,918 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:31:45,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:31:45,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:31:45,919 INFO L87 Difference]: Start difference. First operand 5585 states and 18927 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:46,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:31:46,968 INFO L93 Difference]: Finished difference Result 6028 states and 20152 transitions. [2022-03-03 20:31:46,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-03 20:31:46,968 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:31:46,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:31:46,979 INFO L225 Difference]: With dead ends: 6028 [2022-03-03 20:31:46,979 INFO L226 Difference]: Without dead ends: 5985 [2022-03-03 20:31:46,979 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 548 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=243, Invalid=2307, Unknown=0, NotChecked=0, Total=2550 [2022-03-03 20:31:46,979 INFO L933 BasicCegarLoop]: 87 mSDtfsCounter, 236 mSDsluCounter, 1111 mSDsCounter, 0 mSdLazyCounter, 1599 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 891 SdHoareTripleChecker+Invalid, 1646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 1599 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:31:46,979 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [236 Valid, 891 Invalid, 1646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 1599 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:31:46,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5985 states. [2022-03-03 20:31:47,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5985 to 5591. [2022-03-03 20:31:47,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5591 states, 5590 states have (on average 3.3881932021466907) internal successors, (18940), 5590 states have internal predecessors, (18940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:47,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5591 states to 5591 states and 18940 transitions. [2022-03-03 20:31:47,049 INFO L78 Accepts]: Start accepts. Automaton has 5591 states and 18940 transitions. Word has length 39 [2022-03-03 20:31:47,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:31:47,049 INFO L470 AbstractCegarLoop]: Abstraction has 5591 states and 18940 transitions. [2022-03-03 20:31:47,049 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:47,049 INFO L276 IsEmpty]: Start isEmpty. Operand 5591 states and 18940 transitions. [2022-03-03 20:31:47,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:31:47,056 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:31:47,056 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:31:47,056 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable557 [2022-03-03 20:31:47,056 INFO L402 AbstractCegarLoop]: === Iteration 559 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:31:47,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:31:47,056 INFO L85 PathProgramCache]: Analyzing trace with hash 1043860008, now seen corresponding path program 559 times [2022-03-03 20:31:47,056 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:31:47,056 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138710016] [2022-03-03 20:31:47,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:31:47,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:31:47,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:31:47,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:31:47,276 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:31:47,276 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138710016] [2022-03-03 20:31:47,276 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138710016] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:31:47,276 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:31:47,276 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:31:47,276 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640770238] [2022-03-03 20:31:47,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:31:47,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:31:47,276 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:31:47,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:31:47,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:31:47,276 INFO L87 Difference]: Start difference. First operand 5591 states and 18940 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:48,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:31:48,339 INFO L93 Difference]: Finished difference Result 5997 states and 20085 transitions. [2022-03-03 20:31:48,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-03 20:31:48,340 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:31:48,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:31:48,350 INFO L225 Difference]: With dead ends: 5997 [2022-03-03 20:31:48,351 INFO L226 Difference]: Without dead ends: 5946 [2022-03-03 20:31:48,351 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 549 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=236, Invalid=2314, Unknown=0, NotChecked=0, Total=2550 [2022-03-03 20:31:48,351 INFO L933 BasicCegarLoop]: 89 mSDtfsCounter, 224 mSDsluCounter, 1137 mSDsCounter, 0 mSdLazyCounter, 1636 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 908 SdHoareTripleChecker+Invalid, 1684 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 1636 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:31:48,351 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [224 Valid, 908 Invalid, 1684 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 1636 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:31:48,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5946 states. [2022-03-03 20:31:48,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5946 to 5585. [2022-03-03 20:31:48,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5585 states, 5584 states have (on average 3.389147564469914) internal successors, (18925), 5584 states have internal predecessors, (18925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:48,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5585 states to 5585 states and 18925 transitions. [2022-03-03 20:31:48,449 INFO L78 Accepts]: Start accepts. Automaton has 5585 states and 18925 transitions. Word has length 39 [2022-03-03 20:31:48,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:31:48,449 INFO L470 AbstractCegarLoop]: Abstraction has 5585 states and 18925 transitions. [2022-03-03 20:31:48,450 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:48,450 INFO L276 IsEmpty]: Start isEmpty. Operand 5585 states and 18925 transitions. [2022-03-03 20:31:48,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:31:48,456 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:31:48,456 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:31:48,456 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable558 [2022-03-03 20:31:48,456 INFO L402 AbstractCegarLoop]: === Iteration 560 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:31:48,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:31:48,457 INFO L85 PathProgramCache]: Analyzing trace with hash -1188104876, now seen corresponding path program 560 times [2022-03-03 20:31:48,457 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:31:48,457 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382064074] [2022-03-03 20:31:48,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:31:48,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:31:48,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:31:48,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:31:48,675 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:31:48,675 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382064074] [2022-03-03 20:31:48,675 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382064074] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:31:48,675 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:31:48,675 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:31:48,675 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816386045] [2022-03-03 20:31:48,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:31:48,675 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:31:48,675 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:31:48,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:31:48,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:31:48,676 INFO L87 Difference]: Start difference. First operand 5585 states and 18925 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:50,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:31:50,431 INFO L93 Difference]: Finished difference Result 7453 states and 25073 transitions. [2022-03-03 20:31:50,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-03-03 20:31:50,431 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:31:50,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:31:50,446 INFO L225 Difference]: With dead ends: 7453 [2022-03-03 20:31:50,446 INFO L226 Difference]: Without dead ends: 7414 [2022-03-03 20:31:50,446 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1082 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=368, Invalid=3792, Unknown=0, NotChecked=0, Total=4160 [2022-03-03 20:31:50,446 INFO L933 BasicCegarLoop]: 176 mSDtfsCounter, 367 mSDsluCounter, 2006 mSDsCounter, 0 mSdLazyCounter, 2668 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 367 SdHoareTripleChecker+Valid, 1795 SdHoareTripleChecker+Invalid, 2750 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 2668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-03 20:31:50,446 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [367 Valid, 1795 Invalid, 2750 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 2668 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-03 20:31:50,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7414 states. [2022-03-03 20:31:50,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7414 to 5611. [2022-03-03 20:31:50,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5611 states, 5610 states have (on average 3.390374331550802) internal successors, (19020), 5610 states have internal predecessors, (19020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:50,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5611 states to 5611 states and 19020 transitions. [2022-03-03 20:31:50,523 INFO L78 Accepts]: Start accepts. Automaton has 5611 states and 19020 transitions. Word has length 39 [2022-03-03 20:31:50,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:31:50,524 INFO L470 AbstractCegarLoop]: Abstraction has 5611 states and 19020 transitions. [2022-03-03 20:31:50,524 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:50,524 INFO L276 IsEmpty]: Start isEmpty. Operand 5611 states and 19020 transitions. [2022-03-03 20:31:50,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:31:50,531 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:31:50,531 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:31:50,531 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable559 [2022-03-03 20:31:50,531 INFO L402 AbstractCegarLoop]: === Iteration 561 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:31:50,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:31:50,531 INFO L85 PathProgramCache]: Analyzing trace with hash 1348878006, now seen corresponding path program 561 times [2022-03-03 20:31:50,531 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:31:50,531 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195337115] [2022-03-03 20:31:50,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:31:50,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:31:50,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:31:50,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:31:50,751 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:31:50,751 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195337115] [2022-03-03 20:31:50,751 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195337115] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:31:50,751 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:31:50,751 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:31:50,752 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083988093] [2022-03-03 20:31:50,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:31:50,752 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:31:50,752 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:31:50,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:31:50,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:31:50,752 INFO L87 Difference]: Start difference. First operand 5611 states and 19020 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:52,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:31:52,279 INFO L93 Difference]: Finished difference Result 7441 states and 25029 transitions. [2022-03-03 20:31:52,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-03-03 20:31:52,279 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:31:52,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:31:52,295 INFO L225 Difference]: With dead ends: 7441 [2022-03-03 20:31:52,295 INFO L226 Difference]: Without dead ends: 7386 [2022-03-03 20:31:52,295 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1037 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=352, Invalid=3680, Unknown=0, NotChecked=0, Total=4032 [2022-03-03 20:31:52,295 INFO L933 BasicCegarLoop]: 181 mSDtfsCounter, 354 mSDsluCounter, 2031 mSDsCounter, 0 mSdLazyCounter, 2742 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 354 SdHoareTripleChecker+Valid, 1825 SdHoareTripleChecker+Invalid, 2820 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 2742 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 20:31:52,295 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [354 Valid, 1825 Invalid, 2820 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 2742 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 20:31:52,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7386 states. [2022-03-03 20:31:52,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7386 to 5599. [2022-03-03 20:31:52,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5599 states, 5598 states have (on average 3.3919256877456236) internal successors, (18988), 5598 states have internal predecessors, (18988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:52,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5599 states to 5599 states and 18988 transitions. [2022-03-03 20:31:52,383 INFO L78 Accepts]: Start accepts. Automaton has 5599 states and 18988 transitions. Word has length 39 [2022-03-03 20:31:52,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:31:52,383 INFO L470 AbstractCegarLoop]: Abstraction has 5599 states and 18988 transitions. [2022-03-03 20:31:52,383 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:52,383 INFO L276 IsEmpty]: Start isEmpty. Operand 5599 states and 18988 transitions. [2022-03-03 20:31:52,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:31:52,391 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:31:52,391 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:31:52,391 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable560 [2022-03-03 20:31:52,391 INFO L402 AbstractCegarLoop]: === Iteration 562 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:31:52,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:31:52,392 INFO L85 PathProgramCache]: Analyzing trace with hash 945704794, now seen corresponding path program 562 times [2022-03-03 20:31:52,392 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:31:52,392 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846221447] [2022-03-03 20:31:52,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:31:52,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:31:52,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:31:52,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:31:52,577 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:31:52,577 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846221447] [2022-03-03 20:31:52,577 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846221447] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:31:52,577 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:31:52,577 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:31:52,577 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819587832] [2022-03-03 20:31:52,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:31:52,578 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:31:52,578 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:31:52,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:31:52,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:31:52,578 INFO L87 Difference]: Start difference. First operand 5599 states and 18988 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:53,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:31:53,695 INFO L93 Difference]: Finished difference Result 6190 states and 20570 transitions. [2022-03-03 20:31:53,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-03-03 20:31:53,695 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:31:53,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:31:53,707 INFO L225 Difference]: With dead ends: 6190 [2022-03-03 20:31:53,707 INFO L226 Difference]: Without dead ends: 6135 [2022-03-03 20:31:53,707 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 828 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=319, Invalid=3103, Unknown=0, NotChecked=0, Total=3422 [2022-03-03 20:31:53,707 INFO L933 BasicCegarLoop]: 90 mSDtfsCounter, 272 mSDsluCounter, 1185 mSDsCounter, 0 mSdLazyCounter, 1724 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 935 SdHoareTripleChecker+Invalid, 1802 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 1724 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:31:53,707 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [272 Valid, 935 Invalid, 1802 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 1724 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:31:53,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6135 states. [2022-03-03 20:31:53,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6135 to 5604. [2022-03-03 20:31:53,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5604 states, 5603 states have (on average 3.3910405140103514) internal successors, (19000), 5603 states have internal predecessors, (19000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:53,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5604 states to 5604 states and 19000 transitions. [2022-03-03 20:31:53,793 INFO L78 Accepts]: Start accepts. Automaton has 5604 states and 19000 transitions. Word has length 39 [2022-03-03 20:31:53,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:31:53,793 INFO L470 AbstractCegarLoop]: Abstraction has 5604 states and 19000 transitions. [2022-03-03 20:31:53,793 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:53,794 INFO L276 IsEmpty]: Start isEmpty. Operand 5604 states and 19000 transitions. [2022-03-03 20:31:53,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:31:53,802 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:31:53,802 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:31:53,802 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable561 [2022-03-03 20:31:53,802 INFO L402 AbstractCegarLoop]: === Iteration 563 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:31:53,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:31:53,802 INFO L85 PathProgramCache]: Analyzing trace with hash 2118357016, now seen corresponding path program 563 times [2022-03-03 20:31:53,802 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:31:53,802 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94805752] [2022-03-03 20:31:53,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:31:53,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:31:53,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:31:53,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:31:53,990 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:31:53,990 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94805752] [2022-03-03 20:31:53,990 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94805752] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:31:53,990 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:31:53,990 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:31:53,990 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294788791] [2022-03-03 20:31:53,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:31:53,990 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:31:53,990 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:31:53,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:31:53,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:31:53,991 INFO L87 Difference]: Start difference. First operand 5604 states and 19000 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:55,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:31:55,040 INFO L93 Difference]: Finished difference Result 6177 states and 20529 transitions. [2022-03-03 20:31:55,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-03-03 20:31:55,041 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:31:55,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:31:55,053 INFO L225 Difference]: With dead ends: 6177 [2022-03-03 20:31:55,053 INFO L226 Difference]: Without dead ends: 6131 [2022-03-03 20:31:55,053 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 646 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=268, Invalid=2594, Unknown=0, NotChecked=0, Total=2862 [2022-03-03 20:31:55,053 INFO L933 BasicCegarLoop]: 88 mSDtfsCounter, 269 mSDsluCounter, 1187 mSDsCounter, 0 mSdLazyCounter, 1656 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 932 SdHoareTripleChecker+Invalid, 1714 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 1656 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:31:55,053 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [269 Valid, 932 Invalid, 1714 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 1656 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:31:55,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6131 states. [2022-03-03 20:31:55,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6131 to 5610. [2022-03-03 20:31:55,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5610 states, 5609 states have (on average 3.390087359600642) internal successors, (19015), 5609 states have internal predecessors, (19015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:55,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5610 states to 5610 states and 19015 transitions. [2022-03-03 20:31:55,136 INFO L78 Accepts]: Start accepts. Automaton has 5610 states and 19015 transitions. Word has length 39 [2022-03-03 20:31:55,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:31:55,136 INFO L470 AbstractCegarLoop]: Abstraction has 5610 states and 19015 transitions. [2022-03-03 20:31:55,136 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:55,136 INFO L276 IsEmpty]: Start isEmpty. Operand 5610 states and 19015 transitions. [2022-03-03 20:31:55,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:31:55,144 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:31:55,144 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:31:55,144 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable562 [2022-03-03 20:31:55,144 INFO L402 AbstractCegarLoop]: === Iteration 564 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:31:55,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:31:55,144 INFO L85 PathProgramCache]: Analyzing trace with hash 1870890854, now seen corresponding path program 564 times [2022-03-03 20:31:55,144 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:31:55,144 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377735165] [2022-03-03 20:31:55,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:31:55,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:31:55,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:31:55,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:31:55,333 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:31:55,333 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377735165] [2022-03-03 20:31:55,333 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377735165] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:31:55,333 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:31:55,333 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:31:55,333 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600069830] [2022-03-03 20:31:55,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:31:55,333 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:31:55,333 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:31:55,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:31:55,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:31:55,333 INFO L87 Difference]: Start difference. First operand 5610 states and 19015 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:56,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:31:56,400 INFO L93 Difference]: Finished difference Result 6137 states and 20436 transitions. [2022-03-03 20:31:56,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-03 20:31:56,400 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:31:56,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:31:56,412 INFO L225 Difference]: With dead ends: 6137 [2022-03-03 20:31:56,412 INFO L226 Difference]: Without dead ends: 6092 [2022-03-03 20:31:56,412 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 608 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=263, Invalid=2493, Unknown=0, NotChecked=0, Total=2756 [2022-03-03 20:31:56,412 INFO L933 BasicCegarLoop]: 85 mSDtfsCounter, 251 mSDsluCounter, 1153 mSDsCounter, 0 mSdLazyCounter, 1607 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 902 SdHoareTripleChecker+Invalid, 1664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 1607 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 20:31:56,412 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [251 Valid, 902 Invalid, 1664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 1607 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 20:31:56,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6092 states. [2022-03-03 20:31:56,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6092 to 5608. [2022-03-03 20:31:56,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5608 states, 5607 states have (on average 3.3905831995719637) internal successors, (19011), 5607 states have internal predecessors, (19011), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:56,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5608 states to 5608 states and 19011 transitions. [2022-03-03 20:31:56,483 INFO L78 Accepts]: Start accepts. Automaton has 5608 states and 19011 transitions. Word has length 39 [2022-03-03 20:31:56,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:31:56,483 INFO L470 AbstractCegarLoop]: Abstraction has 5608 states and 19011 transitions. [2022-03-03 20:31:56,483 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:56,483 INFO L276 IsEmpty]: Start isEmpty. Operand 5608 states and 19011 transitions. [2022-03-03 20:31:56,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:31:56,490 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:31:56,490 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:31:56,490 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable563 [2022-03-03 20:31:56,490 INFO L402 AbstractCegarLoop]: === Iteration 565 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:31:56,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:31:56,490 INFO L85 PathProgramCache]: Analyzing trace with hash 2050612136, now seen corresponding path program 565 times [2022-03-03 20:31:56,490 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:31:56,491 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14214154] [2022-03-03 20:31:56,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:31:56,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:31:56,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:31:56,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:31:56,707 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:31:56,707 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14214154] [2022-03-03 20:31:56,707 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14214154] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:31:56,707 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:31:56,707 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:31:56,707 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990830225] [2022-03-03 20:31:56,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:31:56,707 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:31:56,707 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:31:56,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:31:56,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:31:56,708 INFO L87 Difference]: Start difference. First operand 5608 states and 19011 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:57,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:31:57,921 INFO L93 Difference]: Finished difference Result 6196 states and 20586 transitions. [2022-03-03 20:31:57,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-03-03 20:31:57,921 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:31:57,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:31:57,932 INFO L225 Difference]: With dead ends: 6196 [2022-03-03 20:31:57,932 INFO L226 Difference]: Without dead ends: 6153 [2022-03-03 20:31:57,932 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 721 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=282, Invalid=2798, Unknown=0, NotChecked=0, Total=3080 [2022-03-03 20:31:57,932 INFO L933 BasicCegarLoop]: 90 mSDtfsCounter, 276 mSDsluCounter, 1181 mSDsCounter, 0 mSdLazyCounter, 1729 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 929 SdHoareTripleChecker+Invalid, 1794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 1729 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:31:57,932 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [276 Valid, 929 Invalid, 1794 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 1729 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:31:57,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6153 states. [2022-03-03 20:31:57,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6153 to 5617. [2022-03-03 20:31:57,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5617 states, 5616 states have (on average 3.388888888888889) internal successors, (19032), 5616 states have internal predecessors, (19032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:58,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5617 states to 5617 states and 19032 transitions. [2022-03-03 20:31:58,002 INFO L78 Accepts]: Start accepts. Automaton has 5617 states and 19032 transitions. Word has length 39 [2022-03-03 20:31:58,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:31:58,002 INFO L470 AbstractCegarLoop]: Abstraction has 5617 states and 19032 transitions. [2022-03-03 20:31:58,002 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:58,002 INFO L276 IsEmpty]: Start isEmpty. Operand 5617 states and 19032 transitions. [2022-03-03 20:31:58,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:31:58,010 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:31:58,010 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:31:58,010 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable564 [2022-03-03 20:31:58,010 INFO L402 AbstractCegarLoop]: === Iteration 566 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:31:58,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:31:58,010 INFO L85 PathProgramCache]: Analyzing trace with hash -494248024, now seen corresponding path program 566 times [2022-03-03 20:31:58,010 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:31:58,010 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177470891] [2022-03-03 20:31:58,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:31:58,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:31:58,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:31:58,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:31:58,229 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:31:58,229 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177470891] [2022-03-03 20:31:58,229 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177470891] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:31:58,229 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:31:58,229 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:31:58,229 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728232057] [2022-03-03 20:31:58,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:31:58,229 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:31:58,229 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:31:58,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:31:58,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:31:58,230 INFO L87 Difference]: Start difference. First operand 5617 states and 19032 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:59,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:31:59,352 INFO L93 Difference]: Finished difference Result 6163 states and 20508 transitions. [2022-03-03 20:31:59,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-03-03 20:31:59,352 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:31:59,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:31:59,363 INFO L225 Difference]: With dead ends: 6163 [2022-03-03 20:31:59,363 INFO L226 Difference]: Without dead ends: 6112 [2022-03-03 20:31:59,363 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 649 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=259, Invalid=2603, Unknown=0, NotChecked=0, Total=2862 [2022-03-03 20:31:59,363 INFO L933 BasicCegarLoop]: 89 mSDtfsCounter, 259 mSDsluCounter, 1169 mSDsCounter, 0 mSdLazyCounter, 1694 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 916 SdHoareTripleChecker+Invalid, 1755 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 1694 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:31:59,363 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [259 Valid, 916 Invalid, 1755 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 1694 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:31:59,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6112 states. [2022-03-03 20:31:59,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6112 to 5617. [2022-03-03 20:31:59,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5617 states, 5616 states have (on average 3.388354700854701) internal successors, (19029), 5616 states have internal predecessors, (19029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:59,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5617 states to 5617 states and 19029 transitions. [2022-03-03 20:31:59,432 INFO L78 Accepts]: Start accepts. Automaton has 5617 states and 19029 transitions. Word has length 39 [2022-03-03 20:31:59,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:31:59,433 INFO L470 AbstractCegarLoop]: Abstraction has 5617 states and 19029 transitions. [2022-03-03 20:31:59,433 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:31:59,433 INFO L276 IsEmpty]: Start isEmpty. Operand 5617 states and 19029 transitions. [2022-03-03 20:31:59,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:31:59,440 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:31:59,440 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:31:59,440 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable565 [2022-03-03 20:31:59,440 INFO L402 AbstractCegarLoop]: === Iteration 567 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:31:59,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:31:59,440 INFO L85 PathProgramCache]: Analyzing trace with hash 122970378, now seen corresponding path program 567 times [2022-03-03 20:31:59,440 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:31:59,440 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341304393] [2022-03-03 20:31:59,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:31:59,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:31:59,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:31:59,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:31:59,660 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:31:59,661 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341304393] [2022-03-03 20:31:59,661 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341304393] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:31:59,661 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:31:59,661 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:31:59,661 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768355173] [2022-03-03 20:31:59,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:31:59,661 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:31:59,661 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:31:59,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:31:59,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:31:59,661 INFO L87 Difference]: Start difference. First operand 5617 states and 19029 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:32:00,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:32:00,797 INFO L93 Difference]: Finished difference Result 6180 states and 20533 transitions. [2022-03-03 20:32:00,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-03 20:32:00,797 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:32:00,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:32:00,808 INFO L225 Difference]: With dead ends: 6180 [2022-03-03 20:32:00,808 INFO L226 Difference]: Without dead ends: 6134 [2022-03-03 20:32:00,808 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 580 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=242, Invalid=2410, Unknown=0, NotChecked=0, Total=2652 [2022-03-03 20:32:00,808 INFO L933 BasicCegarLoop]: 91 mSDtfsCounter, 256 mSDsluCounter, 1188 mSDsCounter, 0 mSdLazyCounter, 1698 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 939 SdHoareTripleChecker+Invalid, 1752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 1698 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:32:00,808 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [256 Valid, 939 Invalid, 1752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 1698 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:32:00,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6134 states. [2022-03-03 20:32:00,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6134 to 5624. [2022-03-03 20:32:00,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5624 states, 5623 states have (on average 3.386804197047839) internal successors, (19044), 5623 states have internal predecessors, (19044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:32:00,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5624 states to 5624 states and 19044 transitions. [2022-03-03 20:32:00,876 INFO L78 Accepts]: Start accepts. Automaton has 5624 states and 19044 transitions. Word has length 39 [2022-03-03 20:32:00,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:32:00,876 INFO L470 AbstractCegarLoop]: Abstraction has 5624 states and 19044 transitions. [2022-03-03 20:32:00,876 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:32:00,876 INFO L276 IsEmpty]: Start isEmpty. Operand 5624 states and 19044 transitions. [2022-03-03 20:32:00,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:32:00,883 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:32:00,883 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:32:00,883 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable566 [2022-03-03 20:32:00,883 INFO L402 AbstractCegarLoop]: === Iteration 568 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:32:00,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:32:00,883 INFO L85 PathProgramCache]: Analyzing trace with hash -1312097112, now seen corresponding path program 568 times [2022-03-03 20:32:00,883 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:32:00,883 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756980658] [2022-03-03 20:32:00,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:32:00,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:32:00,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:32:01,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:32:01,099 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:32:01,099 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756980658] [2022-03-03 20:32:01,099 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756980658] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:32:01,099 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:32:01,099 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:32:01,099 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608418957] [2022-03-03 20:32:01,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:32:01,099 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:32:01,099 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:32:01,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:32:01,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:32:01,100 INFO L87 Difference]: Start difference. First operand 5624 states and 19044 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:32:02,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:32:02,206 INFO L93 Difference]: Finished difference Result 6149 states and 20461 transitions. [2022-03-03 20:32:02,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-03 20:32:02,206 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:32:02,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:32:02,217 INFO L225 Difference]: With dead ends: 6149 [2022-03-03 20:32:02,217 INFO L226 Difference]: Without dead ends: 6094 [2022-03-03 20:32:02,217 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 615 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=249, Invalid=2507, Unknown=0, NotChecked=0, Total=2756 [2022-03-03 20:32:02,218 INFO L933 BasicCegarLoop]: 88 mSDtfsCounter, 265 mSDsluCounter, 1142 mSDsCounter, 0 mSdLazyCounter, 1671 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 900 SdHoareTripleChecker+Invalid, 1726 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 1671 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:32:02,218 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [265 Valid, 900 Invalid, 1726 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 1671 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:32:02,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6094 states. [2022-03-03 20:32:02,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6094 to 5621. [2022-03-03 20:32:02,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5621 states, 5620 states have (on average 3.387544483985765) internal successors, (19038), 5620 states have internal predecessors, (19038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:32:02,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5621 states to 5621 states and 19038 transitions. [2022-03-03 20:32:02,286 INFO L78 Accepts]: Start accepts. Automaton has 5621 states and 19038 transitions. Word has length 39 [2022-03-03 20:32:02,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:32:02,286 INFO L470 AbstractCegarLoop]: Abstraction has 5621 states and 19038 transitions. [2022-03-03 20:32:02,286 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:32:02,286 INFO L276 IsEmpty]: Start isEmpty. Operand 5621 states and 19038 transitions. [2022-03-03 20:32:02,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:32:02,293 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:32:02,293 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:32:02,294 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable567 [2022-03-03 20:32:02,294 INFO L402 AbstractCegarLoop]: === Iteration 569 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:32:02,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:32:02,294 INFO L85 PathProgramCache]: Analyzing trace with hash 1700167066, now seen corresponding path program 569 times [2022-03-03 20:32:02,294 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:32:02,294 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466320799] [2022-03-03 20:32:02,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:32:02,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:32:02,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:32:02,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:32:02,514 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:32:02,514 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466320799] [2022-03-03 20:32:02,514 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466320799] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:32:02,514 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:32:02,514 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:32:02,514 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045767037] [2022-03-03 20:32:02,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:32:02,514 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:32:02,514 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:32:02,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:32:02,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:32:02,515 INFO L87 Difference]: Start difference. First operand 5621 states and 19038 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:32:03,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:32:03,646 INFO L93 Difference]: Finished difference Result 6133 states and 20421 transitions. [2022-03-03 20:32:03,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-03 20:32:03,646 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:32:03,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:32:03,657 INFO L225 Difference]: With dead ends: 6133 [2022-03-03 20:32:03,657 INFO L226 Difference]: Without dead ends: 6082 [2022-03-03 20:32:03,658 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 614 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=251, Invalid=2505, Unknown=0, NotChecked=0, Total=2756 [2022-03-03 20:32:03,658 INFO L933 BasicCegarLoop]: 89 mSDtfsCounter, 255 mSDsluCounter, 1154 mSDsCounter, 0 mSdLazyCounter, 1694 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 909 SdHoareTripleChecker+Invalid, 1750 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1694 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 20:32:03,658 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [255 Valid, 909 Invalid, 1750 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1694 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 20:32:03,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6082 states. [2022-03-03 20:32:03,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6082 to 5615. [2022-03-03 20:32:03,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5615 states, 5614 states have (on average 3.3884930530815818) internal successors, (19023), 5614 states have internal predecessors, (19023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:32:03,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5615 states to 5615 states and 19023 transitions. [2022-03-03 20:32:03,727 INFO L78 Accepts]: Start accepts. Automaton has 5615 states and 19023 transitions. Word has length 39 [2022-03-03 20:32:03,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:32:03,727 INFO L470 AbstractCegarLoop]: Abstraction has 5615 states and 19023 transitions. [2022-03-03 20:32:03,728 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:32:03,728 INFO L276 IsEmpty]: Start isEmpty. Operand 5615 states and 19023 transitions. [2022-03-03 20:32:03,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:32:03,735 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:32:03,735 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:32:03,735 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable568 [2022-03-03 20:32:03,735 INFO L402 AbstractCegarLoop]: === Iteration 570 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:32:03,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:32:03,735 INFO L85 PathProgramCache]: Analyzing trace with hash 2074499574, now seen corresponding path program 570 times [2022-03-03 20:32:03,735 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:32:03,735 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997758245] [2022-03-03 20:32:03,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:32:03,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:32:03,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:32:03,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:32:03,893 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:32:03,893 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997758245] [2022-03-03 20:32:03,893 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997758245] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:32:03,893 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:32:03,893 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:32:03,893 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885099942] [2022-03-03 20:32:03,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:32:03,893 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:32:03,893 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:32:03,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:32:03,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:32:03,893 INFO L87 Difference]: Start difference. First operand 5615 states and 19023 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:32:05,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:32:05,762 INFO L93 Difference]: Finished difference Result 8870 states and 29785 transitions. [2022-03-03 20:32:05,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2022-03-03 20:32:05,762 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:32:05,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:32:05,778 INFO L225 Difference]: With dead ends: 8870 [2022-03-03 20:32:05,779 INFO L226 Difference]: Without dead ends: 8831 [2022-03-03 20:32:05,780 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2295 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=628, Invalid=6854, Unknown=0, NotChecked=0, Total=7482 [2022-03-03 20:32:05,780 INFO L933 BasicCegarLoop]: 226 mSDtfsCounter, 449 mSDsluCounter, 2779 mSDsCounter, 0 mSdLazyCounter, 3520 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 449 SdHoareTripleChecker+Valid, 2571 SdHoareTripleChecker+Invalid, 3629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 3520 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-03 20:32:05,780 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [449 Valid, 2571 Invalid, 3629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 3520 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-03 20:32:05,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8831 states. [2022-03-03 20:32:05,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8831 to 5618. [2022-03-03 20:32:05,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5618 states, 5617 states have (on average 3.388641623642514) internal successors, (19034), 5617 states have internal predecessors, (19034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:32:05,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5618 states to 5618 states and 19034 transitions. [2022-03-03 20:32:05,894 INFO L78 Accepts]: Start accepts. Automaton has 5618 states and 19034 transitions. Word has length 39 [2022-03-03 20:32:05,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:32:05,894 INFO L470 AbstractCegarLoop]: Abstraction has 5618 states and 19034 transitions. [2022-03-03 20:32:05,894 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:32:05,894 INFO L276 IsEmpty]: Start isEmpty. Operand 5618 states and 19034 transitions. [2022-03-03 20:32:05,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:32:05,901 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:32:05,901 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:32:05,901 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable569 [2022-03-03 20:32:05,901 INFO L402 AbstractCegarLoop]: === Iteration 571 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:32:05,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:32:05,902 INFO L85 PathProgramCache]: Analyzing trace with hash 316515160, now seen corresponding path program 571 times [2022-03-03 20:32:05,902 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:32:05,902 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117109256] [2022-03-03 20:32:05,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:32:05,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:32:05,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 20:32:06,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 20:32:06,046 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 20:32:06,046 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117109256] [2022-03-03 20:32:06,046 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117109256] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 20:32:06,046 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 20:32:06,046 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 20:32:06,046 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437525376] [2022-03-03 20:32:06,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 20:32:06,046 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 20:32:06,046 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 20:32:06,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 20:32:06,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-03-03 20:32:06,046 INFO L87 Difference]: Start difference. First operand 5618 states and 19034 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:32:08,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 20:32:08,461 INFO L93 Difference]: Finished difference Result 8840 states and 29684 transitions. [2022-03-03 20:32:08,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-03-03 20:32:08,461 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-03-03 20:32:08,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 20:32:08,479 INFO L225 Difference]: With dead ends: 8840 [2022-03-03 20:32:08,479 INFO L226 Difference]: Without dead ends: 8789 [2022-03-03 20:32:08,480 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2223 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=609, Invalid=6701, Unknown=0, NotChecked=0, Total=7310 [2022-03-03 20:32:08,480 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 428 mSDsluCounter, 2817 mSDsCounter, 0 mSdLazyCounter, 3669 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 428 SdHoareTripleChecker+Valid, 2614 SdHoareTripleChecker+Invalid, 3777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 3669 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-03-03 20:32:08,480 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [428 Valid, 2614 Invalid, 3777 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 3669 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-03-03 20:32:08,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8789 states. [2022-03-03 20:32:08,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8789 to 5611. [2022-03-03 20:32:08,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5611 states, 5610 states have (on average 3.3887700534759357) internal successors, (19011), 5610 states have internal predecessors, (19011), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:32:08,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5611 states to 5611 states and 19011 transitions. [2022-03-03 20:32:08,583 INFO L78 Accepts]: Start accepts. Automaton has 5611 states and 19011 transitions. Word has length 39 [2022-03-03 20:32:08,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 20:32:08,584 INFO L470 AbstractCegarLoop]: Abstraction has 5611 states and 19011 transitions. [2022-03-03 20:32:08,584 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 20:32:08,584 INFO L276 IsEmpty]: Start isEmpty. Operand 5611 states and 19011 transitions. [2022-03-03 20:32:08,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-03 20:32:08,592 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 20:32:08,592 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 20:32:08,592 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable570 [2022-03-03 20:32:08,592 INFO L402 AbstractCegarLoop]: === Iteration 572 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 20:32:08,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 20:32:08,592 INFO L85 PathProgramCache]: Analyzing trace with hash -1854068604, now seen corresponding path program 572 times [2022-03-03 20:32:08,592 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 20:32:08,592 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294345504] [2022-03-03 20:32:08,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 20:32:08,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 20:32:08,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... [2022-03-03 20:32:08,758 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-03 20:32:08,761 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (4 of 5 remaining) [2022-03-03 20:32:08,761 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable571 [2022-03-03 20:32:08,761 WARN L594 AbstractCegarLoop]: Verification canceled: while BasicCegarLoop was analyzing trace of length 40 with TraceHistMax 1,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateComparison was comparing new predicate (quantifier-free) to 14 known predicates. [2022-03-03 20:32:08,763 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 5 remaining) [2022-03-03 20:32:08,763 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (2 of 5 remaining) [2022-03-03 20:32:08,768 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (1 of 5 remaining) [2022-03-03 20:32:08,768 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3INUSE_VIOLATION (0 of 5 remaining) [2022-03-03 20:32:08,770 INFO L732 BasicCegarLoop]: Path program histogram: [572] [2022-03-03 20:32:08,771 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-03 20:32:08,771 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-03 20:32:08,772 INFO L202 PluginConnector]: Adding new model easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.03 08:32:08 BasicIcfg [2022-03-03 20:32:08,772 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-03 20:32:08,772 INFO L158 Benchmark]: Toolchain (without parser) took 852265.77ms. Allocated memory was 204.5MB in the beginning and 893.4MB in the end (delta: 688.9MB). Free memory was 164.7MB in the beginning and 810.2MB in the end (delta: -645.5MB). Peak memory consumption was 559.8MB. Max. memory is 8.0GB. [2022-03-03 20:32:08,772 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.12ms. Allocated memory is still 204.5MB. Free memory is still 165.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-03 20:32:08,773 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.72ms. Allocated memory is still 204.5MB. Free memory was 164.7MB in the beginning and 163.1MB in the end (delta: 1.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-03-03 20:32:08,773 INFO L158 Benchmark]: Boogie Preprocessor took 9.73ms. Allocated memory is still 204.5MB. Free memory was 163.1MB in the beginning and 162.3MB in the end (delta: 879.5kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-03 20:32:08,773 INFO L158 Benchmark]: RCFGBuilder took 211.70ms. Allocated memory is still 204.5MB. Free memory was 162.1MB in the beginning and 152.9MB in the end (delta: 9.2MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-03-03 20:32:08,773 INFO L158 Benchmark]: TraceAbstraction took 852016.90ms. Allocated memory was 204.5MB in the beginning and 893.4MB in the end (delta: 688.9MB). Free memory was 152.6MB in the beginning and 810.2MB in the end (delta: -657.7MB). Peak memory consumption was 546.2MB. Max. memory is 8.0GB. [2022-03-03 20:32:08,773 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.12ms. Allocated memory is still 204.5MB. Free memory is still 165.9MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 20.72ms. Allocated memory is still 204.5MB. Free memory was 164.7MB in the beginning and 163.1MB in the end (delta: 1.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 9.73ms. Allocated memory is still 204.5MB. Free memory was 163.1MB in the beginning and 162.3MB in the end (delta: 879.5kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 211.70ms. Allocated memory is still 204.5MB. Free memory was 162.1MB in the beginning and 152.9MB in the end (delta: 9.2MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 852016.90ms. Allocated memory was 204.5MB in the beginning and 893.4MB in the end (delta: 688.9MB). Free memory was 152.6MB in the beginning and 810.2MB in the end (delta: -657.7MB). Peak memory consumption was 546.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 79]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while BasicCegarLoop was analyzing trace of length 40 with TraceHistMax 1,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateComparison was comparing new predicate (quantifier-free) to 14 known predicates. - TimeoutResultAtElement [Line: 70]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was analyzing trace of length 40 with TraceHistMax 1,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateComparison was comparing new predicate (quantifier-free) to 14 known predicates. - TimeoutResultAtElement [Line: 72]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was analyzing trace of length 40 with TraceHistMax 1,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateComparison was comparing new predicate (quantifier-free) to 14 known predicates. - TimeoutResultAtElement [Line: 71]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was analyzing trace of length 40 with TraceHistMax 1,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateComparison was comparing new predicate (quantifier-free) to 14 known predicates. - TimeoutResultAtElement [Line: 70]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was analyzing trace of length 40 with TraceHistMax 1,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateComparison was comparing new predicate (quantifier-free) to 14 known predicates. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 82 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 851.9s, OverallIterations: 572, TraceHistogramMax: 1, PathProgramHistogramMax: 572, EmptinessCheckTime: 3.9s, AutomataDifference: 690.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.3s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 166022 SdHoareTripleChecker+Valid, 335.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 166022 mSDsluCounter, 708532 SdHoareTripleChecker+Invalid, 283.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 829857 mSDsCounter, 32078 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1133786 IncrementalHoareTripleChecker+Invalid, 1165864 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 32078 mSolverCounterUnsat, 70763 mSDtfsCounter, 1133786 mSolverCounterSat, 2.5s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 32549 GetRequests, 719 SyntacticMatches, 1175 SemanticMatches, 30655 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 446696 ImplicationChecksByTransitivity, 392.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5624occurred in iteration=567, InterpolantAutomatonStates: 27335, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 41.1s AutomataMinimizationTime, 571 MinimizatonAttempts, 470526 StatesRemovedByMinimization, 569 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 112.2s InterpolantComputationTime, 22269 NumberOfCodeBlocks, 22269 NumberOfCodeBlocksAsserted, 571 NumberOfCheckSat, 21698 ConstructedInterpolants, 0 QuantifiedInterpolants, 346921 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 571 InterpolantComputations, 571 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown