/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-44898dd [2022-02-09 03:58:48,060 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-09 03:58:48,061 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-09 03:58:48,106 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-09 03:58:48,135 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 [2022-02-09 03:58:48,156 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-09 03:58:48,157 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-09 03:58:48,157 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-09 03:58:48,157 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-09 03:58:48,157 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-09 03:58:48,157 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-09 03:58:48,158 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-09 03:58:48,158 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-09 03:58:48,158 INFO L138 SettingsManager]: * Use SBE=true [2022-02-09 03:58:48,158 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-09 03:58:48,158 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-09 03:58:48,158 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-09 03:58:48,158 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-09 03:58:48,158 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-09 03:58:48,158 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-09 03:58:48,159 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-09 03:58:48,159 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-09 03:58:48,159 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-09 03:58:48,159 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-09 03:58:48,159 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-09 03:58:48,159 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-09 03:58:48,159 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-09 03:58:48,159 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-09 03:58:48,159 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-09 03:58:48,159 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-09 03:58:48,159 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-09 03:58:48,160 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-09 03:58:48,160 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-09 03:58:48,160 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-09 03:58:48,160 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-09 03:58:48,160 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-09 03:58:48,160 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-09 03:58:48,160 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-09 03:58:48,160 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-09 03:58:48,329 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-09 03:58:48,344 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-09 03:58:48,346 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-09 03:58:48,346 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-02-09 03:58:48,356 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-02-09 03:58:48,357 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/test/easy10.wvr.bpl [2022-02-09 03:58:48,357 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/test/easy10.wvr.bpl' [2022-02-09 03:58:48,378 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-09 03:58:48,379 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-09 03:58:48,380 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-09 03:58:48,380 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-09 03:58:48,380 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-09 03:58:48,389 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 03:58:48" (1/1) ... [2022-02-09 03:58:48,393 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 03:58:48" (1/1) ... [2022-02-09 03:58:48,401 INFO L137 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-02-09 03:58:48,402 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-09 03:58:48,403 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-09 03:58:48,403 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-09 03:58:48,403 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-09 03:58:48,408 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 03:58:48" (1/1) ... [2022-02-09 03:58:48,408 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 03:58:48" (1/1) ... [2022-02-09 03:58:48,408 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 03:58:48" (1/1) ... [2022-02-09 03:58:48,408 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 03:58:48" (1/1) ... [2022-02-09 03:58:48,410 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 03:58:48" (1/1) ... [2022-02-09 03:58:48,410 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 03:58:48" (1/1) ... [2022-02-09 03:58:48,411 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 03:58:48" (1/1) ... [2022-02-09 03:58:48,412 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-09 03:58:48,412 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-09 03:58:48,412 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-09 03:58:48,412 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-09 03:58:48,415 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 03:58:48" (1/1) ... [2022-02-09 03:58:48,419 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-09 03:58:48,424 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 03:58:48,434 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) [2022-02-09 03:58:48,449 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 [2022-02-09 03:58:48,457 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-02-09 03:58:48,457 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-09 03:58:48,457 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-09 03:58:48,457 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-02-09 03:58:48,457 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-09 03:58:48,457 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-09 03:58:48,457 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-02-09 03:58:48,457 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-09 03:58:48,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-09 03:58:48,457 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-02-09 03:58:48,458 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-02-09 03:58:48,458 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-02-09 03:58:48,458 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2022-02-09 03:58:48,458 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-02-09 03:58:48,458 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-02-09 03:58:48,458 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-09 03:58:48,491 INFO L234 CfgBuilder]: Building ICFG [2022-02-09 03:58:48,492 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-09 03:58:48,626 INFO L275 CfgBuilder]: Performing block encoding [2022-02-09 03:58:48,631 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-09 03:58:48,631 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-09 03:58:48,632 INFO L202 PluginConnector]: Adding new model easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.02 03:58:48 BoogieIcfgContainer [2022-02-09 03:58:48,632 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-09 03:58:48,633 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-09 03:58:48,633 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-09 03:58:48,649 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-09 03:58:48,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 03:58:48" (1/2) ... [2022-02-09 03:58:48,651 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@439c9073 and model type easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.02 03:58:48, skipping insertion in model container [2022-02-09 03:58:48,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.02 03:58:48" (2/2) ... [2022-02-09 03:58:48,652 INFO L111 eAbstractionObserver]: Analyzing ICFG easy10.wvr.bpl [2022-02-09 03:58:48,655 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-09 03:58:48,656 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-09 03:58:48,656 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-09 03:58:48,656 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-09 03:58:48,685 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-02-09 03:58:48,737 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-09 03:58:48,742 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 [2022-02-09 03:58:48,742 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-02-09 03:58:48,749 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 58 places, 45 transitions, 122 flow [2022-02-09 03:58:48,940 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) [2022-02-09 03:58:48,956 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) [2022-02-09 03:58:48,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 03:58:48,995 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 03:58:48,996 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 03:58:48,997 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 03:58:49,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 03:58:49,003 INFO L85 PathProgramCache]: Analyzing trace with hash -748934232, now seen corresponding path program 1 times [2022-02-09 03:58:49,015 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 03:58:49,016 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141591823] [2022-02-09 03:58:49,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 03:58:49,017 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 03:58:49,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 03:58:49,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 03:58:49,130 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 03:58:49,131 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141591823] [2022-02-09 03:58:49,131 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141591823] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 03:58:49,131 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 03:58:49,131 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-09 03:58:49,132 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121310827] [2022-02-09 03:58:49,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 03:58:49,135 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-09 03:58:49,135 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 03:58:49,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-09 03:58:49,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-09 03:58:49,181 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) [2022-02-09 03:58:49,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 03:58:49,263 INFO L93 Difference]: Finished difference Result 4197 states and 14419 transitions. [2022-02-09 03:58:49,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 03:58:49,265 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 [2022-02-09 03:58:49,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 03:58:49,309 INFO L225 Difference]: With dead ends: 4197 [2022-02-09 03:58:49,309 INFO L226 Difference]: Without dead ends: 4197 [2022-02-09 03:58:49,311 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 [2022-02-09 03:58:49,316 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 [2022-02-09 03:58:49,317 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] [2022-02-09 03:58:49,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4197 states. [2022-02-09 03:58:49,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4197 to 4197. [2022-02-09 03:58:49,622 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) [2022-02-09 03:58:49,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4197 states to 4197 states and 14419 transitions. [2022-02-09 03:58:49,642 INFO L78 Accepts]: Start accepts. Automaton has 4197 states and 14419 transitions. Word has length 39 [2022-02-09 03:58:49,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 03:58:49,642 INFO L470 AbstractCegarLoop]: Abstraction has 4197 states and 14419 transitions. [2022-02-09 03:58:49,642 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) [2022-02-09 03:58:49,643 INFO L276 IsEmpty]: Start isEmpty. Operand 4197 states and 14419 transitions. [2022-02-09 03:58:49,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 03:58:49,654 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 03:58:49,654 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 03:58:49,654 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-09 03:58:49,654 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 03:58:49,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 03:58:49,657 INFO L85 PathProgramCache]: Analyzing trace with hash -2066982596, now seen corresponding path program 2 times [2022-02-09 03:58:49,657 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 03:58:49,658 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173432973] [2022-02-09 03:58:49,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 03:58:49,658 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 03:58:49,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 03:58:49,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 03:58:49,701 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 03:58:49,701 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173432973] [2022-02-09 03:58:49,701 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173432973] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 03:58:49,702 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 03:58:49,702 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-09 03:58:49,702 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234351965] [2022-02-09 03:58:49,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 03:58:49,703 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-09 03:58:49,703 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 03:58:49,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-09 03:58:49,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-09 03:58:49,704 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) [2022-02-09 03:58:49,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 03:58:49,750 INFO L93 Difference]: Finished difference Result 3290 states and 11077 transitions. [2022-02-09 03:58:49,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 03:58:49,750 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 [2022-02-09 03:58:49,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 03:58:49,767 INFO L225 Difference]: With dead ends: 3290 [2022-02-09 03:58:49,767 INFO L226 Difference]: Without dead ends: 3290 [2022-02-09 03:58:49,769 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 [2022-02-09 03:58:49,773 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 [2022-02-09 03:58:49,773 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] [2022-02-09 03:58:49,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3290 states. [2022-02-09 03:58:49,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3290 to 3290. [2022-02-09 03:58:49,867 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) [2022-02-09 03:58:49,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3290 states to 3290 states and 11077 transitions. [2022-02-09 03:58:49,879 INFO L78 Accepts]: Start accepts. Automaton has 3290 states and 11077 transitions. Word has length 39 [2022-02-09 03:58:49,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 03:58:49,880 INFO L470 AbstractCegarLoop]: Abstraction has 3290 states and 11077 transitions. [2022-02-09 03:58:49,880 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) [2022-02-09 03:58:49,880 INFO L276 IsEmpty]: Start isEmpty. Operand 3290 states and 11077 transitions. [2022-02-09 03:58:49,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 03:58:49,891 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 03:58:49,891 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 03:58:49,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-09 03:58:49,891 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 03:58:49,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 03:58:49,893 INFO L85 PathProgramCache]: Analyzing trace with hash -907261672, now seen corresponding path program 3 times [2022-02-09 03:58:49,893 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 03:58:49,894 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183849552] [2022-02-09 03:58:49,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 03:58:49,894 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 03:58:49,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 03:58:50,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 03:58:50,364 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 03:58:50,365 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183849552] [2022-02-09 03:58:50,366 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183849552] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 03:58:50,366 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 03:58:50,368 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-09 03:58:50,374 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467660352] [2022-02-09 03:58:50,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 03:58:50,375 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-02-09 03:58:50,376 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 03:58:50,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-02-09 03:58:50,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2022-02-09 03:58:50,377 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) [2022-02-09 03:58:51,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 03:58:51,514 INFO L93 Difference]: Finished difference Result 3661 states and 12223 transitions. [2022-02-09 03:58:51,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-09 03:58:51,514 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 [2022-02-09 03:58:51,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 03:58:51,532 INFO L225 Difference]: With dead ends: 3661 [2022-02-09 03:58:51,532 INFO L226 Difference]: Without dead ends: 3594 [2022-02-09 03:58:51,533 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 [2022-02-09 03:58:51,533 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 [2022-02-09 03:58:51,534 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] [2022-02-09 03:58:51,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3594 states. [2022-02-09 03:58:51,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3594 to 3418. [2022-02-09 03:58:51,612 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) [2022-02-09 03:58:51,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3418 states to 3418 states and 11481 transitions. [2022-02-09 03:58:51,623 INFO L78 Accepts]: Start accepts. Automaton has 3418 states and 11481 transitions. Word has length 39 [2022-02-09 03:58:51,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 03:58:51,624 INFO L470 AbstractCegarLoop]: Abstraction has 3418 states and 11481 transitions. [2022-02-09 03:58:51,624 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) [2022-02-09 03:58:51,624 INFO L276 IsEmpty]: Start isEmpty. Operand 3418 states and 11481 transitions. [2022-02-09 03:58:51,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 03:58:51,632 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 03:58:51,633 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] [2022-02-09 03:58:51,633 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-09 03:58:51,633 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 03:58:51,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 03:58:51,633 INFO L85 PathProgramCache]: Analyzing trace with hash 1668089654, now seen corresponding path program 4 times [2022-02-09 03:58:51,633 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 03:58:51,634 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417437910] [2022-02-09 03:58:51,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 03:58:51,634 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 03:58:51,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 03:58:51,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 03:58:51,944 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 03:58:51,944 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417437910] [2022-02-09 03:58:51,945 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417437910] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 03:58:51,945 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 03:58:51,945 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-09 03:58:51,945 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491205083] [2022-02-09 03:58:51,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 03:58:51,945 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-02-09 03:58:51,945 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 03:58:51,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-02-09 03:58:51,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2022-02-09 03:58:51,946 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) [2022-02-09 03:58:53,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 03:58:53,229 INFO L93 Difference]: Finished difference Result 3717 states and 12358 transitions. [2022-02-09 03:58:53,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-09 03:58:53,230 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 [2022-02-09 03:58:53,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 03:58:53,246 INFO L225 Difference]: With dead ends: 3717 [2022-02-09 03:58:53,247 INFO L226 Difference]: Without dead ends: 3674 [2022-02-09 03:58:53,247 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 [2022-02-09 03:58:53,248 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 [2022-02-09 03:58:53,248 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] [2022-02-09 03:58:53,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3674 states. [2022-02-09 03:58:53,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3674 to 3424. [2022-02-09 03:58:53,323 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) [2022-02-09 03:58:53,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3424 states to 3424 states and 11494 transitions. [2022-02-09 03:58:53,335 INFO L78 Accepts]: Start accepts. Automaton has 3424 states and 11494 transitions. Word has length 39 [2022-02-09 03:58:53,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 03:58:53,335 INFO L470 AbstractCegarLoop]: Abstraction has 3424 states and 11494 transitions. [2022-02-09 03:58:53,336 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) [2022-02-09 03:58:53,336 INFO L276 IsEmpty]: Start isEmpty. Operand 3424 states and 11494 transitions. [2022-02-09 03:58:53,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 03:58:53,344 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 03:58:53,344 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 03:58:53,344 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-09 03:58:53,345 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 03:58:53,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 03:58:53,345 INFO L85 PathProgramCache]: Analyzing trace with hash -112508648, now seen corresponding path program 5 times [2022-02-09 03:58:53,345 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 03:58:53,345 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733757056] [2022-02-09 03:58:53,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 03:58:53,346 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 03:58:53,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 03:58:53,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 03:58:53,615 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 03:58:53,615 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733757056] [2022-02-09 03:58:53,615 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733757056] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 03:58:53,615 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 03:58:53,615 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-09 03:58:53,615 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661962041] [2022-02-09 03:58:53,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 03:58:53,616 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-02-09 03:58:53,616 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 03:58:53,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-02-09 03:58:53,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2022-02-09 03:58:53,616 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) [2022-02-09 03:58:54,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 03:58:54,890 INFO L93 Difference]: Finished difference Result 3672 states and 12254 transitions. [2022-02-09 03:58:54,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-02-09 03:58:54,891 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 [2022-02-09 03:58:54,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 03:58:54,901 INFO L225 Difference]: With dead ends: 3672 [2022-02-09 03:58:54,901 INFO L226 Difference]: Without dead ends: 3608 [2022-02-09 03:58:54,902 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 [2022-02-09 03:58:54,903 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 [2022-02-09 03:58:54,903 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] [2022-02-09 03:58:54,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3608 states. [2022-02-09 03:58:54,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3608 to 3406. [2022-02-09 03:58:54,966 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) [2022-02-09 03:58:54,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3406 states to 3406 states and 11443 transitions. [2022-02-09 03:58:54,975 INFO L78 Accepts]: Start accepts. Automaton has 3406 states and 11443 transitions. Word has length 39 [2022-02-09 03:58:54,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 03:58:54,975 INFO L470 AbstractCegarLoop]: Abstraction has 3406 states and 11443 transitions. [2022-02-09 03:58:54,975 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) [2022-02-09 03:58:54,975 INFO L276 IsEmpty]: Start isEmpty. Operand 3406 states and 11443 transitions. [2022-02-09 03:58:54,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 03:58:54,982 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 03:58:54,982 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 03:58:54,982 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-09 03:58:54,982 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 03:58:54,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 03:58:54,983 INFO L85 PathProgramCache]: Analyzing trace with hash -521324264, now seen corresponding path program 6 times [2022-02-09 03:58:54,983 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 03:58:54,983 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798631701] [2022-02-09 03:58:54,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 03:58:54,983 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 03:58:54,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 03:58:55,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 03:58:55,247 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 03:58:55,247 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798631701] [2022-02-09 03:58:55,247 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798631701] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 03:58:55,247 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 03:58:55,247 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-09 03:58:55,247 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179674087] [2022-02-09 03:58:55,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 03:58:55,248 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-02-09 03:58:55,248 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 03:58:55,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-02-09 03:58:55,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2022-02-09 03:58:55,248 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) [2022-02-09 03:58:56,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 03:58:56,467 INFO L93 Difference]: Finished difference Result 3717 states and 12377 transitions. [2022-02-09 03:58:56,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-02-09 03:58:56,467 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 [2022-02-09 03:58:56,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 03:58:56,477 INFO L225 Difference]: With dead ends: 3717 [2022-02-09 03:58:56,477 INFO L226 Difference]: Without dead ends: 3587 [2022-02-09 03:58:56,478 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 [2022-02-09 03:58:56,478 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 [2022-02-09 03:58:56,479 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] [2022-02-09 03:58:56,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3587 states. [2022-02-09 03:58:56,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3587 to 3382. [2022-02-09 03:58:56,536 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) [2022-02-09 03:58:56,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3382 states to 3382 states and 11371 transitions. [2022-02-09 03:58:56,544 INFO L78 Accepts]: Start accepts. Automaton has 3382 states and 11371 transitions. Word has length 39 [2022-02-09 03:58:56,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 03:58:56,544 INFO L470 AbstractCegarLoop]: Abstraction has 3382 states and 11371 transitions. [2022-02-09 03:58:56,544 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) [2022-02-09 03:58:56,544 INFO L276 IsEmpty]: Start isEmpty. Operand 3382 states and 11371 transitions. [2022-02-09 03:58:56,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 03:58:56,550 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 03:58:56,550 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] [2022-02-09 03:58:56,550 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-09 03:58:56,550 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 03:58:56,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 03:58:56,551 INFO L85 PathProgramCache]: Analyzing trace with hash 1316627588, now seen corresponding path program 7 times [2022-02-09 03:58:56,551 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 03:58:56,551 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11810247] [2022-02-09 03:58:56,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 03:58:56,551 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 03:58:56,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 03:58:56,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 03:58:56,860 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 03:58:56,860 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11810247] [2022-02-09 03:58:56,860 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11810247] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 03:58:56,860 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 03:58:56,860 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 03:58:56,860 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719518772] [2022-02-09 03:58:56,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 03:58:56,860 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 03:58:56,860 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 03:58:56,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 03:58:56,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 03:58:56,861 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) [2022-02-09 03:58:57,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 03:58:57,792 INFO L93 Difference]: Finished difference Result 3691 states and 12292 transitions. [2022-02-09 03:58:57,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-02-09 03:58:57,792 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 [2022-02-09 03:58:57,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 03:58:57,802 INFO L225 Difference]: With dead ends: 3691 [2022-02-09 03:58:57,802 INFO L226 Difference]: Without dead ends: 3624 [2022-02-09 03:58:57,802 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 337 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=189, Invalid=1617, Unknown=0, NotChecked=0, Total=1806 [2022-02-09 03:58:57,803 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 [2022-02-09 03:58:57,803 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] [2022-02-09 03:58:57,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3624 states. [2022-02-09 03:58:57,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3624 to 3398. [2022-02-09 03:58:57,891 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) [2022-02-09 03:58:57,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3398 states to 3398 states and 11411 transitions. [2022-02-09 03:58:57,901 INFO L78 Accepts]: Start accepts. Automaton has 3398 states and 11411 transitions. Word has length 39 [2022-02-09 03:58:57,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 03:58:57,901 INFO L470 AbstractCegarLoop]: Abstraction has 3398 states and 11411 transitions. [2022-02-09 03:58:57,901 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) [2022-02-09 03:58:57,901 INFO L276 IsEmpty]: Start isEmpty. Operand 3398 states and 11411 transitions. [2022-02-09 03:58:57,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 03:58:57,907 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 03:58:57,908 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] [2022-02-09 03:58:57,908 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-09 03:58:57,908 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 03:58:57,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 03:58:57,909 INFO L85 PathProgramCache]: Analyzing trace with hash -402988382, now seen corresponding path program 8 times [2022-02-09 03:58:57,909 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 03:58:57,909 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169649937] [2022-02-09 03:58:57,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 03:58:57,909 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 03:58:57,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 03:58:58,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 03:58:58,198 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 03:58:58,198 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169649937] [2022-02-09 03:58:58,198 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169649937] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 03:58:58,198 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 03:58:58,198 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 03:58:58,198 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614067893] [2022-02-09 03:58:58,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 03:58:58,199 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 03:58:58,199 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 03:58:58,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 03:58:58,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 03:58:58,199 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) [2022-02-09 03:58:59,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 03:58:59,499 INFO L93 Difference]: Finished difference Result 3780 states and 12493 transitions. [2022-02-09 03:58:59,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-02-09 03:58:59,499 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 [2022-02-09 03:58:59,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 03:58:59,509 INFO L225 Difference]: With dead ends: 3780 [2022-02-09 03:58:59,509 INFO L226 Difference]: Without dead ends: 3737 [2022-02-09 03:58:59,510 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 [2022-02-09 03:58:59,510 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 [2022-02-09 03:58:59,511 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] [2022-02-09 03:58:59,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3737 states. [2022-02-09 03:58:59,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3737 to 3404. [2022-02-09 03:58:59,572 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) [2022-02-09 03:58:59,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3404 states to 3404 states and 11424 transitions. [2022-02-09 03:58:59,581 INFO L78 Accepts]: Start accepts. Automaton has 3404 states and 11424 transitions. Word has length 39 [2022-02-09 03:58:59,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 03:58:59,581 INFO L470 AbstractCegarLoop]: Abstraction has 3404 states and 11424 transitions. [2022-02-09 03:58:59,581 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) [2022-02-09 03:58:59,581 INFO L276 IsEmpty]: Start isEmpty. Operand 3404 states and 11424 transitions. [2022-02-09 03:58:59,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 03:58:59,588 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 03:58:59,588 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 03:58:59,588 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-02-09 03:58:59,588 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 03:58:59,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 03:58:59,588 INFO L85 PathProgramCache]: Analyzing trace with hash 2111380612, now seen corresponding path program 9 times [2022-02-09 03:58:59,588 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 03:58:59,589 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713989778] [2022-02-09 03:58:59,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 03:58:59,589 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 03:58:59,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 03:58:59,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 03:58:59,861 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 03:58:59,861 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713989778] [2022-02-09 03:58:59,861 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713989778] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 03:58:59,862 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 03:58:59,862 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 03:58:59,862 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632441605] [2022-02-09 03:58:59,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 03:58:59,862 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 03:58:59,862 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 03:58:59,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 03:58:59,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 03:58:59,863 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) [2022-02-09 03:59:01,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 03:59:01,117 INFO L93 Difference]: Finished difference Result 3735 states and 12389 transitions. [2022-02-09 03:59:01,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-02-09 03:59:01,117 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 [2022-02-09 03:59:01,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 03:59:01,126 INFO L225 Difference]: With dead ends: 3735 [2022-02-09 03:59:01,131 INFO L226 Difference]: Without dead ends: 3671 [2022-02-09 03:59:01,132 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 [2022-02-09 03:59:01,133 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 [2022-02-09 03:59:01,134 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] [2022-02-09 03:59:01,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3671 states. [2022-02-09 03:59:01,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3671 to 3386. [2022-02-09 03:59:01,200 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) [2022-02-09 03:59:01,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3386 states to 3386 states and 11381 transitions. [2022-02-09 03:59:01,210 INFO L78 Accepts]: Start accepts. Automaton has 3386 states and 11381 transitions. Word has length 39 [2022-02-09 03:59:01,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 03:59:01,211 INFO L470 AbstractCegarLoop]: Abstraction has 3386 states and 11381 transitions. [2022-02-09 03:59:01,211 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) [2022-02-09 03:59:01,211 INFO L276 IsEmpty]: Start isEmpty. Operand 3386 states and 11381 transitions. [2022-02-09 03:59:01,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 03:59:01,217 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 03:59:01,218 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] [2022-02-09 03:59:01,218 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-02-09 03:59:01,218 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 03:59:01,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 03:59:01,218 INFO L85 PathProgramCache]: Analyzing trace with hash -1563152284, now seen corresponding path program 10 times [2022-02-09 03:59:01,218 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 03:59:01,219 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074164628] [2022-02-09 03:59:01,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 03:59:01,219 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 03:59:01,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 03:59:01,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 03:59:01,513 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 03:59:01,513 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074164628] [2022-02-09 03:59:01,513 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074164628] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 03:59:01,514 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 03:59:01,514 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 03:59:01,514 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611342394] [2022-02-09 03:59:01,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 03:59:01,514 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 03:59:01,514 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 03:59:01,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 03:59:01,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 03:59:01,515 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) [2022-02-09 03:59:02,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 03:59:02,447 INFO L93 Difference]: Finished difference Result 3643 states and 12154 transitions. [2022-02-09 03:59:02,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-09 03:59:02,453 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 [2022-02-09 03:59:02,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 03:59:02,462 INFO L225 Difference]: With dead ends: 3643 [2022-02-09 03:59:02,462 INFO L226 Difference]: Without dead ends: 3576 [2022-02-09 03:59:02,462 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 [2022-02-09 03:59:02,463 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 [2022-02-09 03:59:02,471 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] [2022-02-09 03:59:02,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3576 states. [2022-02-09 03:59:02,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3576 to 3394. [2022-02-09 03:59:02,519 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) [2022-02-09 03:59:02,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3394 states to 3394 states and 11397 transitions. [2022-02-09 03:59:02,526 INFO L78 Accepts]: Start accepts. Automaton has 3394 states and 11397 transitions. Word has length 39 [2022-02-09 03:59:02,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 03:59:02,527 INFO L470 AbstractCegarLoop]: Abstraction has 3394 states and 11397 transitions. [2022-02-09 03:59:02,527 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) [2022-02-09 03:59:02,527 INFO L276 IsEmpty]: Start isEmpty. Operand 3394 states and 11397 transitions. [2022-02-09 03:59:02,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 03:59:02,533 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 03:59:02,533 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] [2022-02-09 03:59:02,533 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-02-09 03:59:02,533 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 03:59:02,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 03:59:02,533 INFO L85 PathProgramCache]: Analyzing trace with hash -1693747132, now seen corresponding path program 11 times [2022-02-09 03:59:02,533 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 03:59:02,534 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302899754] [2022-02-09 03:59:02,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 03:59:02,534 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 03:59:02,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 03:59:02,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 03:59:02,794 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 03:59:02,794 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302899754] [2022-02-09 03:59:02,794 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302899754] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 03:59:02,794 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 03:59:02,794 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 03:59:02,794 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71786657] [2022-02-09 03:59:02,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 03:59:02,795 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 03:59:02,795 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 03:59:02,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 03:59:02,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 03:59:02,796 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) [2022-02-09 03:59:03,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 03:59:03,753 INFO L93 Difference]: Finished difference Result 3631 states and 12114 transitions. [2022-02-09 03:59:03,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-02-09 03:59:03,753 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 [2022-02-09 03:59:03,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 03:59:03,761 INFO L225 Difference]: With dead ends: 3631 [2022-02-09 03:59:03,761 INFO L226 Difference]: Without dead ends: 3568 [2022-02-09 03:59:03,762 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 [2022-02-09 03:59:03,762 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 [2022-02-09 03:59:03,762 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] [2022-02-09 03:59:03,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3568 states. [2022-02-09 03:59:03,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3568 to 3386. [2022-02-09 03:59:03,815 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) [2022-02-09 03:59:03,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3386 states to 3386 states and 11377 transitions. [2022-02-09 03:59:03,823 INFO L78 Accepts]: Start accepts. Automaton has 3386 states and 11377 transitions. Word has length 39 [2022-02-09 03:59:03,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 03:59:03,823 INFO L470 AbstractCegarLoop]: Abstraction has 3386 states and 11377 transitions. [2022-02-09 03:59:03,823 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) [2022-02-09 03:59:03,823 INFO L276 IsEmpty]: Start isEmpty. Operand 3386 states and 11377 transitions. [2022-02-09 03:59:03,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 03:59:03,830 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 03:59:03,830 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 03:59:03,830 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-02-09 03:59:03,830 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 03:59:03,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 03:59:03,830 INFO L85 PathProgramCache]: Analyzing trace with hash -1829425724, now seen corresponding path program 12 times [2022-02-09 03:59:03,831 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 03:59:03,831 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253425023] [2022-02-09 03:59:03,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 03:59:03,831 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 03:59:03,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 03:59:04,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 03:59:04,069 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 03:59:04,069 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253425023] [2022-02-09 03:59:04,069 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253425023] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 03:59:04,069 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 03:59:04,070 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 03:59:04,070 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466689270] [2022-02-09 03:59:04,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 03:59:04,070 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 03:59:04,070 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 03:59:04,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 03:59:04,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 03:59:04,071 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) [2022-02-09 03:59:05,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 03:59:05,327 INFO L93 Difference]: Finished difference Result 3769 states and 12461 transitions. [2022-02-09 03:59:05,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-02-09 03:59:05,327 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 [2022-02-09 03:59:05,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 03:59:05,336 INFO L225 Difference]: With dead ends: 3769 [2022-02-09 03:59:05,336 INFO L226 Difference]: Without dead ends: 3726 [2022-02-09 03:59:05,337 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 [2022-02-09 03:59:05,337 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 [2022-02-09 03:59:05,337 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] [2022-02-09 03:59:05,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3726 states. [2022-02-09 03:59:05,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3726 to 3394. [2022-02-09 03:59:05,397 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) [2022-02-09 03:59:05,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3394 states to 3394 states and 11397 transitions. [2022-02-09 03:59:05,405 INFO L78 Accepts]: Start accepts. Automaton has 3394 states and 11397 transitions. Word has length 39 [2022-02-09 03:59:05,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 03:59:05,406 INFO L470 AbstractCegarLoop]: Abstraction has 3394 states and 11397 transitions. [2022-02-09 03:59:05,406 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) [2022-02-09 03:59:05,406 INFO L276 IsEmpty]: Start isEmpty. Operand 3394 states and 11397 transitions. [2022-02-09 03:59:05,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 03:59:05,412 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 03:59:05,412 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 03:59:05,413 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-02-09 03:59:05,413 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 03:59:05,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 03:59:05,413 INFO L85 PathProgramCache]: Analyzing trace with hash 684943270, now seen corresponding path program 13 times [2022-02-09 03:59:05,413 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 03:59:05,413 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695183210] [2022-02-09 03:59:05,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 03:59:05,413 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 03:59:05,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 03:59:05,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 03:59:05,734 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 03:59:05,734 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695183210] [2022-02-09 03:59:05,734 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695183210] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 03:59:05,734 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 03:59:05,735 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 03:59:05,735 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851521217] [2022-02-09 03:59:05,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 03:59:05,735 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 03:59:05,735 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 03:59:05,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 03:59:05,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 03:59:05,736 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) [2022-02-09 03:59:07,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 03:59:07,042 INFO L93 Difference]: Finished difference Result 3757 states and 12423 transitions. [2022-02-09 03:59:07,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-02-09 03:59:07,043 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 [2022-02-09 03:59:07,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 03:59:07,051 INFO L225 Difference]: With dead ends: 3757 [2022-02-09 03:59:07,051 INFO L226 Difference]: Without dead ends: 3705 [2022-02-09 03:59:07,052 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 [2022-02-09 03:59:07,053 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 03:59:07,053 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [245 Valid, 905 Invalid, 1712 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1671 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 03:59:07,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3705 states. [2022-02-09 03:59:07,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3705 to 3388. [2022-02-09 03:59:07,101 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) [2022-02-09 03:59:07,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3388 states to 3388 states and 11382 transitions. [2022-02-09 03:59:07,109 INFO L78 Accepts]: Start accepts. Automaton has 3388 states and 11382 transitions. Word has length 39 [2022-02-09 03:59:07,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 03:59:07,110 INFO L470 AbstractCegarLoop]: Abstraction has 3388 states and 11382 transitions. [2022-02-09 03:59:07,110 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) [2022-02-09 03:59:07,110 INFO L276 IsEmpty]: Start isEmpty. Operand 3388 states and 11382 transitions. [2022-02-09 03:59:07,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 03:59:07,116 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 03:59:07,116 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] [2022-02-09 03:59:07,116 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-02-09 03:59:07,116 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 03:59:07,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 03:59:07,116 INFO L85 PathProgramCache]: Analyzing trace with hash -910942154, now seen corresponding path program 14 times [2022-02-09 03:59:07,116 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 03:59:07,116 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351512196] [2022-02-09 03:59:07,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 03:59:07,117 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 03:59:07,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 03:59:07,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 03:59:07,461 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 03:59:07,461 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351512196] [2022-02-09 03:59:07,461 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351512196] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 03:59:07,461 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 03:59:07,461 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 03:59:07,461 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863938388] [2022-02-09 03:59:07,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 03:59:07,461 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 03:59:07,461 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 03:59:07,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 03:59:07,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 03:59:07,462 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) [2022-02-09 03:59:08,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 03:59:08,423 INFO L93 Difference]: Finished difference Result 3718 states and 12302 transitions. [2022-02-09 03:59:08,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-09 03:59:08,423 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 [2022-02-09 03:59:08,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 03:59:08,430 INFO L225 Difference]: With dead ends: 3718 [2022-02-09 03:59:08,431 INFO L226 Difference]: Without dead ends: 3663 [2022-02-09 03:59:08,431 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 391 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=202, Invalid=1778, Unknown=0, NotChecked=0, Total=1980 [2022-02-09 03:59:08,432 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, 0.5s IncrementalHoareTripleChecker+Time [2022-02-09 03:59:08,432 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [211 Valid, 878 Invalid, 1559 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1525 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-09 03:59:08,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3663 states. [2022-02-09 03:59:08,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3663 to 3388. [2022-02-09 03:59:08,477 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) [2022-02-09 03:59:08,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3388 states to 3388 states and 11380 transitions. [2022-02-09 03:59:08,484 INFO L78 Accepts]: Start accepts. Automaton has 3388 states and 11380 transitions. Word has length 39 [2022-02-09 03:59:08,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 03:59:08,484 INFO L470 AbstractCegarLoop]: Abstraction has 3388 states and 11380 transitions. [2022-02-09 03:59:08,484 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) [2022-02-09 03:59:08,484 INFO L276 IsEmpty]: Start isEmpty. Operand 3388 states and 11380 transitions. [2022-02-09 03:59:08,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 03:59:08,490 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 03:59:08,490 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] [2022-02-09 03:59:08,490 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-02-09 03:59:08,490 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 03:59:08,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 03:59:08,491 INFO L85 PathProgramCache]: Analyzing trace with hash 261710068, now seen corresponding path program 15 times [2022-02-09 03:59:08,491 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 03:59:08,491 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663513227] [2022-02-09 03:59:08,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 03:59:08,491 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 03:59:08,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 03:59:08,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 03:59:08,725 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 03:59:08,725 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663513227] [2022-02-09 03:59:08,725 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663513227] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 03:59:08,725 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 03:59:08,726 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 03:59:08,726 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725789157] [2022-02-09 03:59:08,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 03:59:08,726 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 03:59:08,726 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 03:59:08,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 03:59:08,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 03:59:08,726 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) [2022-02-09 03:59:09,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 03:59:09,737 INFO L93 Difference]: Finished difference Result 3628 states and 12104 transitions. [2022-02-09 03:59:09,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-02-09 03:59:09,738 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 [2022-02-09 03:59:09,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 03:59:09,746 INFO L225 Difference]: With dead ends: 3628 [2022-02-09 03:59:09,746 INFO L226 Difference]: Without dead ends: 3564 [2022-02-09 03:59:09,746 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 333 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=187, Invalid=1619, Unknown=0, NotChecked=0, Total=1806 [2022-02-09 03:59:09,747 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 [2022-02-09 03:59:09,747 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] [2022-02-09 03:59:09,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3564 states. [2022-02-09 03:59:09,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3564 to 3382. [2022-02-09 03:59:09,797 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) [2022-02-09 03:59:09,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3382 states to 3382 states and 11367 transitions. [2022-02-09 03:59:09,806 INFO L78 Accepts]: Start accepts. Automaton has 3382 states and 11367 transitions. Word has length 39 [2022-02-09 03:59:09,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 03:59:09,806 INFO L470 AbstractCegarLoop]: Abstraction has 3382 states and 11367 transitions. [2022-02-09 03:59:09,806 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) [2022-02-09 03:59:09,806 INFO L276 IsEmpty]: Start isEmpty. Operand 3382 states and 11367 transitions. [2022-02-09 03:59:09,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 03:59:09,813 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 03:59:09,813 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 03:59:09,813 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-02-09 03:59:09,813 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 03:59:09,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 03:59:09,813 INFO L85 PathProgramCache]: Analyzing trace with hash -1791208906, now seen corresponding path program 16 times [2022-02-09 03:59:09,813 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 03:59:09,814 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327561080] [2022-02-09 03:59:09,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 03:59:09,814 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 03:59:09,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 03:59:10,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 03:59:10,038 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 03:59:10,038 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327561080] [2022-02-09 03:59:10,039 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327561080] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 03:59:10,039 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 03:59:10,039 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 03:59:10,039 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076217263] [2022-02-09 03:59:10,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 03:59:10,039 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 03:59:10,039 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 03:59:10,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 03:59:10,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 03:59:10,039 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) [2022-02-09 03:59:11,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 03:59:11,380 INFO L93 Difference]: Finished difference Result 3835 states and 12644 transitions. [2022-02-09 03:59:11,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-02-09 03:59:11,380 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 [2022-02-09 03:59:11,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 03:59:11,389 INFO L225 Difference]: With dead ends: 3835 [2022-02-09 03:59:11,389 INFO L226 Difference]: Without dead ends: 3698 [2022-02-09 03:59:11,390 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 566 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=247, Invalid=2303, Unknown=0, NotChecked=0, Total=2550 [2022-02-09 03:59:11,390 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 [2022-02-09 03:59:11,390 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] [2022-02-09 03:59:11,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3698 states. [2022-02-09 03:59:11,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3698 to 3386. [2022-02-09 03:59:11,445 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) [2022-02-09 03:59:11,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3386 states to 3386 states and 11377 transitions. [2022-02-09 03:59:11,453 INFO L78 Accepts]: Start accepts. Automaton has 3386 states and 11377 transitions. Word has length 39 [2022-02-09 03:59:11,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 03:59:11,453 INFO L470 AbstractCegarLoop]: Abstraction has 3386 states and 11377 transitions. [2022-02-09 03:59:11,453 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) [2022-02-09 03:59:11,453 INFO L276 IsEmpty]: Start isEmpty. Operand 3386 states and 11377 transitions. [2022-02-09 03:59:11,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 03:59:11,460 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 03:59:11,460 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 03:59:11,460 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-02-09 03:59:11,460 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 03:59:11,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 03:59:11,460 INFO L85 PathProgramCache]: Analyzing trace with hash 1008867490, now seen corresponding path program 17 times [2022-02-09 03:59:11,460 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 03:59:11,461 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243407790] [2022-02-09 03:59:11,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 03:59:11,461 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 03:59:11,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 03:59:11,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 03:59:11,694 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 03:59:11,694 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243407790] [2022-02-09 03:59:11,694 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243407790] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 03:59:11,694 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 03:59:11,695 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 03:59:11,695 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145745902] [2022-02-09 03:59:11,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 03:59:11,695 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 03:59:11,695 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 03:59:11,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 03:59:11,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 03:59:11,695 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) [2022-02-09 03:59:13,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 03:59:13,031 INFO L93 Difference]: Finished difference Result 3873 states and 12714 transitions. [2022-02-09 03:59:13,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-02-09 03:59:13,031 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 [2022-02-09 03:59:13,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 03:59:13,039 INFO L225 Difference]: With dead ends: 3873 [2022-02-09 03:59:13,039 INFO L226 Difference]: Without dead ends: 3809 [2022-02-09 03:59:13,040 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 [2022-02-09 03:59:13,041 INFO L933 BasicCegarLoop]: 101 mSDtfsCounter, 247 mSDsluCounter, 1188 mSDsCounter, 0 mSdLazyCounter, 1774 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 03:59:13,041 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [247 Valid, 952 Invalid, 1816 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 1774 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 03:59:13,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3809 states. [2022-02-09 03:59:13,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3809 to 3388. [2022-02-09 03:59:13,095 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) [2022-02-09 03:59:13,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3388 states to 3388 states and 11382 transitions. [2022-02-09 03:59:13,103 INFO L78 Accepts]: Start accepts. Automaton has 3388 states and 11382 transitions. Word has length 39 [2022-02-09 03:59:13,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 03:59:13,103 INFO L470 AbstractCegarLoop]: Abstraction has 3388 states and 11382 transitions. [2022-02-09 03:59:13,103 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) [2022-02-09 03:59:13,103 INFO L276 IsEmpty]: Start isEmpty. Operand 3388 states and 11382 transitions. [2022-02-09 03:59:13,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 03:59:13,109 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 03:59:13,110 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 03:59:13,110 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-02-09 03:59:13,110 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 03:59:13,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 03:59:13,110 INFO L85 PathProgramCache]: Analyzing trace with hash 1927351060, now seen corresponding path program 18 times [2022-02-09 03:59:13,110 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 03:59:13,110 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275152690] [2022-02-09 03:59:13,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 03:59:13,110 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 03:59:13,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 03:59:13,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 03:59:13,339 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 03:59:13,339 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275152690] [2022-02-09 03:59:13,339 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275152690] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 03:59:13,339 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 03:59:13,339 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 03:59:13,339 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833468914] [2022-02-09 03:59:13,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 03:59:13,339 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 03:59:13,339 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 03:59:13,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 03:59:13,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 03:59:13,340 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) [2022-02-09 03:59:14,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 03:59:14,382 INFO L93 Difference]: Finished difference Result 3774 states and 12450 transitions. [2022-02-09 03:59:14,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-02-09 03:59:14,383 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 [2022-02-09 03:59:14,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 03:59:14,391 INFO L225 Difference]: With dead ends: 3774 [2022-02-09 03:59:14,391 INFO L226 Difference]: Without dead ends: 3719 [2022-02-09 03:59:14,392 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 [2022-02-09 03:59:14,392 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 [2022-02-09 03:59:14,392 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] [2022-02-09 03:59:14,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3719 states. [2022-02-09 03:59:14,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3719 to 3388. [2022-02-09 03:59:14,444 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) [2022-02-09 03:59:14,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3388 states to 3388 states and 11380 transitions. [2022-02-09 03:59:14,452 INFO L78 Accepts]: Start accepts. Automaton has 3388 states and 11380 transitions. Word has length 39 [2022-02-09 03:59:14,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 03:59:14,452 INFO L470 AbstractCegarLoop]: Abstraction has 3388 states and 11380 transitions. [2022-02-09 03:59:14,452 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) [2022-02-09 03:59:14,452 INFO L276 IsEmpty]: Start isEmpty. Operand 3388 states and 11380 transitions. [2022-02-09 03:59:14,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 03:59:14,458 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 03:59:14,458 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 03:59:14,458 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-02-09 03:59:14,458 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 03:59:14,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 03:59:14,458 INFO L85 PathProgramCache]: Analyzing trace with hash -1194964014, now seen corresponding path program 19 times [2022-02-09 03:59:14,458 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 03:59:14,458 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493868922] [2022-02-09 03:59:14,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 03:59:14,459 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 03:59:14,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 03:59:14,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 03:59:14,710 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 03:59:14,710 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493868922] [2022-02-09 03:59:14,710 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493868922] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 03:59:14,710 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 03:59:14,710 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 03:59:14,710 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847551865] [2022-02-09 03:59:14,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 03:59:14,710 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 03:59:14,710 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 03:59:14,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 03:59:14,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 03:59:14,711 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) [2022-02-09 03:59:15,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 03:59:15,714 INFO L93 Difference]: Finished difference Result 3744 states and 12389 transitions. [2022-02-09 03:59:15,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-02-09 03:59:15,719 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 [2022-02-09 03:59:15,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 03:59:15,727 INFO L225 Difference]: With dead ends: 3744 [2022-02-09 03:59:15,728 INFO L226 Difference]: Without dead ends: 3684 [2022-02-09 03:59:15,728 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 [2022-02-09 03:59:15,729 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 221 mSDsluCounter, 1117 mSDsCounter, 0 mSdLazyCounter, 1537 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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 [2022-02-09 03:59:15,729 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] [2022-02-09 03:59:15,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3684 states. [2022-02-09 03:59:15,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3684 to 3386. [2022-02-09 03:59:15,770 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) [2022-02-09 03:59:15,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3386 states to 3386 states and 11375 transitions. [2022-02-09 03:59:15,776 INFO L78 Accepts]: Start accepts. Automaton has 3386 states and 11375 transitions. Word has length 39 [2022-02-09 03:59:15,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 03:59:15,776 INFO L470 AbstractCegarLoop]: Abstraction has 3386 states and 11375 transitions. [2022-02-09 03:59:15,776 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) [2022-02-09 03:59:15,776 INFO L276 IsEmpty]: Start isEmpty. Operand 3386 states and 11375 transitions. [2022-02-09 03:59:15,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 03:59:15,781 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 03:59:15,781 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 03:59:15,781 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-02-09 03:59:15,781 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 03:59:15,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 03:59:15,781 INFO L85 PathProgramCache]: Analyzing trace with hash 1020436740, now seen corresponding path program 20 times [2022-02-09 03:59:15,781 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 03:59:15,782 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019126649] [2022-02-09 03:59:15,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 03:59:15,782 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 03:59:15,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 03:59:16,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 03:59:16,024 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 03:59:16,024 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019126649] [2022-02-09 03:59:16,024 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019126649] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 03:59:16,024 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 03:59:16,024 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-09 03:59:16,024 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385159352] [2022-02-09 03:59:16,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 03:59:16,025 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-02-09 03:59:16,025 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 03:59:16,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-02-09 03:59:16,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2022-02-09 03:59:16,025 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) [2022-02-09 03:59:16,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 03:59:16,973 INFO L93 Difference]: Finished difference Result 3655 states and 12176 transitions. [2022-02-09 03:59:16,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-09 03:59:16,974 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 [2022-02-09 03:59:16,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 03:59:16,981 INFO L225 Difference]: With dead ends: 3655 [2022-02-09 03:59:16,981 INFO L226 Difference]: Without dead ends: 3579 [2022-02-09 03:59:16,982 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 [2022-02-09 03:59:16,991 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 [2022-02-09 03:59:16,992 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] [2022-02-09 03:59:17,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3579 states. [2022-02-09 03:59:17,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3579 to 3394. [2022-02-09 03:59:17,037 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) [2022-02-09 03:59:17,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3394 states to 3394 states and 11391 transitions. [2022-02-09 03:59:17,043 INFO L78 Accepts]: Start accepts. Automaton has 3394 states and 11391 transitions. Word has length 39 [2022-02-09 03:59:17,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 03:59:17,043 INFO L470 AbstractCegarLoop]: Abstraction has 3394 states and 11391 transitions. [2022-02-09 03:59:17,043 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) [2022-02-09 03:59:17,043 INFO L276 IsEmpty]: Start isEmpty. Operand 3394 states and 11391 transitions. [2022-02-09 03:59:17,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 03:59:17,048 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 03:59:17,048 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] [2022-02-09 03:59:17,048 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-02-09 03:59:17,048 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 03:59:17,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 03:59:17,048 INFO L85 PathProgramCache]: Analyzing trace with hash 2383128, now seen corresponding path program 21 times [2022-02-09 03:59:17,048 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 03:59:17,048 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789107915] [2022-02-09 03:59:17,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 03:59:17,049 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 03:59:17,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 03:59:17,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 03:59:17,303 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 03:59:17,303 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789107915] [2022-02-09 03:59:17,303 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789107915] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 03:59:17,304 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 03:59:17,304 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 03:59:17,304 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668441170] [2022-02-09 03:59:17,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 03:59:17,304 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 03:59:17,304 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 03:59:17,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 03:59:17,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 03:59:17,304 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) [2022-02-09 03:59:18,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 03:59:18,308 INFO L93 Difference]: Finished difference Result 3637 states and 12122 transitions. [2022-02-09 03:59:18,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-02-09 03:59:18,309 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 [2022-02-09 03:59:18,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 03:59:18,316 INFO L225 Difference]: With dead ends: 3637 [2022-02-09 03:59:18,316 INFO L226 Difference]: Without dead ends: 3559 [2022-02-09 03:59:18,317 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 336 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=180, Invalid=1626, Unknown=0, NotChecked=0, Total=1806 [2022-02-09 03:59:18,317 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 [2022-02-09 03:59:18,317 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] [2022-02-09 03:59:18,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3559 states. [2022-02-09 03:59:18,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3559 to 3374. [2022-02-09 03:59:18,359 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) [2022-02-09 03:59:18,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3374 states to 3374 states and 11343 transitions. [2022-02-09 03:59:18,367 INFO L78 Accepts]: Start accepts. Automaton has 3374 states and 11343 transitions. Word has length 39 [2022-02-09 03:59:18,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 03:59:18,367 INFO L470 AbstractCegarLoop]: Abstraction has 3374 states and 11343 transitions. [2022-02-09 03:59:18,367 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) [2022-02-09 03:59:18,367 INFO L276 IsEmpty]: Start isEmpty. Operand 3374 states and 11343 transitions. [2022-02-09 03:59:18,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 03:59:18,372 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 03:59:18,373 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] [2022-02-09 03:59:18,373 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-02-09 03:59:18,373 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 03:59:18,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 03:59:18,373 INFO L85 PathProgramCache]: Analyzing trace with hash 1886494842, now seen corresponding path program 22 times [2022-02-09 03:59:18,373 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 03:59:18,373 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608758515] [2022-02-09 03:59:18,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 03:59:18,373 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 03:59:18,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 03:59:18,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 03:59:18,602 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 03:59:18,602 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608758515] [2022-02-09 03:59:18,602 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608758515] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 03:59:18,602 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 03:59:18,602 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 03:59:18,602 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794694334] [2022-02-09 03:59:18,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 03:59:18,603 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 03:59:18,603 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 03:59:18,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 03:59:18,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 03:59:18,603 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) [2022-02-09 03:59:19,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 03:59:19,600 INFO L93 Difference]: Finished difference Result 3817 states and 12701 transitions. [2022-02-09 03:59:19,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-02-09 03:59:19,600 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 [2022-02-09 03:59:19,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 03:59:19,609 INFO L225 Difference]: With dead ends: 3817 [2022-02-09 03:59:19,609 INFO L226 Difference]: Without dead ends: 3750 [2022-02-09 03:59:19,610 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 [2022-02-09 03:59:19,610 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 [2022-02-09 03:59:19,610 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] [2022-02-09 03:59:19,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3750 states. [2022-02-09 03:59:19,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3750 to 3406. [2022-02-09 03:59:19,662 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) [2022-02-09 03:59:19,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3406 states to 3406 states and 11437 transitions. [2022-02-09 03:59:19,669 INFO L78 Accepts]: Start accepts. Automaton has 3406 states and 11437 transitions. Word has length 39 [2022-02-09 03:59:19,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 03:59:19,670 INFO L470 AbstractCegarLoop]: Abstraction has 3406 states and 11437 transitions. [2022-02-09 03:59:19,670 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) [2022-02-09 03:59:19,670 INFO L276 IsEmpty]: Start isEmpty. Operand 3406 states and 11437 transitions. [2022-02-09 03:59:19,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 03:59:19,676 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 03:59:19,676 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 03:59:19,676 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-02-09 03:59:19,676 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 03:59:19,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 03:59:19,677 INFO L85 PathProgramCache]: Analyzing trace with hash 166878872, now seen corresponding path program 23 times [2022-02-09 03:59:19,677 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 03:59:19,677 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886209087] [2022-02-09 03:59:19,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 03:59:19,677 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 03:59:19,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 03:59:19,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 03:59:19,916 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 03:59:19,916 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886209087] [2022-02-09 03:59:19,916 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886209087] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 03:59:19,916 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 03:59:19,916 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 03:59:19,916 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624201480] [2022-02-09 03:59:19,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 03:59:19,917 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 03:59:19,917 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 03:59:19,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 03:59:19,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 03:59:19,917 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) [2022-02-09 03:59:21,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 03:59:21,215 INFO L93 Difference]: Finished difference Result 3906 states and 12902 transitions. [2022-02-09 03:59:21,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-02-09 03:59:21,215 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 [2022-02-09 03:59:21,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 03:59:21,223 INFO L225 Difference]: With dead ends: 3906 [2022-02-09 03:59:21,223 INFO L226 Difference]: Without dead ends: 3863 [2022-02-09 03:59:21,224 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 563 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=249, Invalid=2301, Unknown=0, NotChecked=0, Total=2550 [2022-02-09 03:59:21,224 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 [2022-02-09 03:59:21,224 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] [2022-02-09 03:59:21,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3863 states. [2022-02-09 03:59:21,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3863 to 3412. [2022-02-09 03:59:21,273 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) [2022-02-09 03:59:21,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3412 states to 3412 states and 11450 transitions. [2022-02-09 03:59:21,282 INFO L78 Accepts]: Start accepts. Automaton has 3412 states and 11450 transitions. Word has length 39 [2022-02-09 03:59:21,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 03:59:21,282 INFO L470 AbstractCegarLoop]: Abstraction has 3412 states and 11450 transitions. [2022-02-09 03:59:21,282 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) [2022-02-09 03:59:21,282 INFO L276 IsEmpty]: Start isEmpty. Operand 3412 states and 11450 transitions. [2022-02-09 03:59:21,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 03:59:21,288 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 03:59:21,288 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 03:59:21,288 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-02-09 03:59:21,289 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 03:59:21,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 03:59:21,289 INFO L85 PathProgramCache]: Analyzing trace with hash -1613719430, now seen corresponding path program 24 times [2022-02-09 03:59:21,289 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 03:59:21,289 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116224830] [2022-02-09 03:59:21,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 03:59:21,289 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 03:59:21,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 03:59:21,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 03:59:21,546 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 03:59:21,546 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116224830] [2022-02-09 03:59:21,546 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116224830] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 03:59:21,546 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 03:59:21,546 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 03:59:21,546 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584501736] [2022-02-09 03:59:21,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 03:59:21,546 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 03:59:21,546 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 03:59:21,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 03:59:21,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 03:59:21,547 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) [2022-02-09 03:59:22,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 03:59:22,801 INFO L93 Difference]: Finished difference Result 3861 states and 12798 transitions. [2022-02-09 03:59:22,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-02-09 03:59:22,801 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 [2022-02-09 03:59:22,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 03:59:22,809 INFO L225 Difference]: With dead ends: 3861 [2022-02-09 03:59:22,809 INFO L226 Difference]: Without dead ends: 3797 [2022-02-09 03:59:22,810 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 [2022-02-09 03:59:22,811 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 [2022-02-09 03:59:22,811 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] [2022-02-09 03:59:22,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3797 states. [2022-02-09 03:59:22,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3797 to 3394. [2022-02-09 03:59:22,858 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) [2022-02-09 03:59:22,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3394 states to 3394 states and 11407 transitions. [2022-02-09 03:59:22,866 INFO L78 Accepts]: Start accepts. Automaton has 3394 states and 11407 transitions. Word has length 39 [2022-02-09 03:59:22,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 03:59:22,866 INFO L470 AbstractCegarLoop]: Abstraction has 3394 states and 11407 transitions. [2022-02-09 03:59:22,866 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) [2022-02-09 03:59:22,866 INFO L276 IsEmpty]: Start isEmpty. Operand 3394 states and 11407 transitions. [2022-02-09 03:59:22,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 03:59:22,872 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 03:59:22,872 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] [2022-02-09 03:59:22,872 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-02-09 03:59:22,872 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 03:59:22,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 03:59:22,872 INFO L85 PathProgramCache]: Analyzing trace with hash -993285030, now seen corresponding path program 25 times [2022-02-09 03:59:22,873 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 03:59:22,873 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60103773] [2022-02-09 03:59:22,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 03:59:22,873 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 03:59:22,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 03:59:23,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 03:59:23,123 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 03:59:23,123 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60103773] [2022-02-09 03:59:23,123 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60103773] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 03:59:23,123 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 03:59:23,123 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 03:59:23,123 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390557820] [2022-02-09 03:59:23,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 03:59:23,123 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 03:59:23,123 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 03:59:23,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 03:59:23,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 03:59:23,124 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) [2022-02-09 03:59:24,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 03:59:24,073 INFO L93 Difference]: Finished difference Result 3817 states and 12695 transitions. [2022-02-09 03:59:24,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-02-09 03:59:24,074 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 [2022-02-09 03:59:24,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 03:59:24,081 INFO L225 Difference]: With dead ends: 3817 [2022-02-09 03:59:24,081 INFO L226 Difference]: Without dead ends: 3750 [2022-02-09 03:59:24,082 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 [2022-02-09 03:59:24,082 INFO L933 BasicCegarLoop]: 105 mSDtfsCounter, 183 mSDsluCounter, 1135 mSDsCounter, 0 mSdLazyCounter, 1606 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 03:59:24,082 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [183 Valid, 953 Invalid, 1632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1606 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 03:59:24,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3750 states. [2022-02-09 03:59:24,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3750 to 3402. [2022-02-09 03:59:24,123 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) [2022-02-09 03:59:24,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3402 states to 3402 states and 11423 transitions. [2022-02-09 03:59:24,130 INFO L78 Accepts]: Start accepts. Automaton has 3402 states and 11423 transitions. Word has length 39 [2022-02-09 03:59:24,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 03:59:24,130 INFO L470 AbstractCegarLoop]: Abstraction has 3402 states and 11423 transitions. [2022-02-09 03:59:24,130 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) [2022-02-09 03:59:24,130 INFO L276 IsEmpty]: Start isEmpty. Operand 3402 states and 11423 transitions. [2022-02-09 03:59:24,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 03:59:24,134 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 03:59:24,134 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 03:59:24,135 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-02-09 03:59:24,135 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 03:59:24,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 03:59:24,135 INFO L85 PathProgramCache]: Analyzing trace with hash -1123879878, now seen corresponding path program 26 times [2022-02-09 03:59:24,135 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 03:59:24,135 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604276078] [2022-02-09 03:59:24,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 03:59:24,135 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 03:59:24,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 03:59:24,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 03:59:24,365 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 03:59:24,365 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604276078] [2022-02-09 03:59:24,365 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604276078] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 03:59:24,365 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 03:59:24,365 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 03:59:24,365 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624320059] [2022-02-09 03:59:24,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 03:59:24,365 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 03:59:24,365 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 03:59:24,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 03:59:24,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 03:59:24,366 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) [2022-02-09 03:59:25,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 03:59:25,367 INFO L93 Difference]: Finished difference Result 3805 states and 12655 transitions. [2022-02-09 03:59:25,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-02-09 03:59:25,368 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 [2022-02-09 03:59:25,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 03:59:25,376 INFO L225 Difference]: With dead ends: 3805 [2022-02-09 03:59:25,376 INFO L226 Difference]: Without dead ends: 3742 [2022-02-09 03:59:25,377 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 [2022-02-09 03:59:25,377 INFO L933 BasicCegarLoop]: 106 mSDtfsCounter, 189 mSDsluCounter, 1157 mSDsCounter, 0 mSdLazyCounter, 1619 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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 [2022-02-09 03:59:25,378 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] [2022-02-09 03:59:25,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3742 states. [2022-02-09 03:59:25,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3742 to 3394. [2022-02-09 03:59:25,423 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) [2022-02-09 03:59:25,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3394 states to 3394 states and 11403 transitions. [2022-02-09 03:59:25,430 INFO L78 Accepts]: Start accepts. Automaton has 3394 states and 11403 transitions. Word has length 39 [2022-02-09 03:59:25,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 03:59:25,430 INFO L470 AbstractCegarLoop]: Abstraction has 3394 states and 11403 transitions. [2022-02-09 03:59:25,430 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) [2022-02-09 03:59:25,430 INFO L276 IsEmpty]: Start isEmpty. Operand 3394 states and 11403 transitions. [2022-02-09 03:59:25,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 03:59:25,435 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 03:59:25,436 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] [2022-02-09 03:59:25,436 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-02-09 03:59:25,436 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 03:59:25,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 03:59:25,436 INFO L85 PathProgramCache]: Analyzing trace with hash -1259558470, now seen corresponding path program 27 times [2022-02-09 03:59:25,436 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 03:59:25,436 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160344263] [2022-02-09 03:59:25,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 03:59:25,436 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 03:59:25,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 03:59:25,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 03:59:25,707 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 03:59:25,707 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160344263] [2022-02-09 03:59:25,707 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160344263] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 03:59:25,707 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 03:59:25,707 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 03:59:25,707 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001191783] [2022-02-09 03:59:25,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 03:59:25,707 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 03:59:25,707 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 03:59:25,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 03:59:25,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 03:59:25,708 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) [2022-02-09 03:59:27,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 03:59:27,046 INFO L93 Difference]: Finished difference Result 3972 states and 13056 transitions. [2022-02-09 03:59:27,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-02-09 03:59:27,046 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 [2022-02-09 03:59:27,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 03:59:27,054 INFO L225 Difference]: With dead ends: 3972 [2022-02-09 03:59:27,054 INFO L226 Difference]: Without dead ends: 3929 [2022-02-09 03:59:27,055 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 632 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=268, Invalid=2488, Unknown=0, NotChecked=0, Total=2756 [2022-02-09 03:59:27,055 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, 0.7s IncrementalHoareTripleChecker+Time [2022-02-09 03:59:27,056 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [254 Valid, 1033 Invalid, 1876 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 1833 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-09 03:59:27,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3929 states. [2022-02-09 03:59:27,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3929 to 3402. [2022-02-09 03:59:27,094 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) [2022-02-09 03:59:27,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3402 states to 3402 states and 11423 transitions. [2022-02-09 03:59:27,100 INFO L78 Accepts]: Start accepts. Automaton has 3402 states and 11423 transitions. Word has length 39 [2022-02-09 03:59:27,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 03:59:27,101 INFO L470 AbstractCegarLoop]: Abstraction has 3402 states and 11423 transitions. [2022-02-09 03:59:27,101 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) [2022-02-09 03:59:27,101 INFO L276 IsEmpty]: Start isEmpty. Operand 3402 states and 11423 transitions. [2022-02-09 03:59:27,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 03:59:27,106 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 03:59:27,106 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 03:59:27,106 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-02-09 03:59:27,106 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 03:59:27,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 03:59:27,106 INFO L85 PathProgramCache]: Analyzing trace with hash 1254810524, now seen corresponding path program 28 times [2022-02-09 03:59:27,106 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 03:59:27,106 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439569999] [2022-02-09 03:59:27,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 03:59:27,106 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 03:59:27,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 03:59:27,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 03:59:27,451 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 03:59:27,451 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439569999] [2022-02-09 03:59:27,451 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439569999] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 03:59:27,451 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 03:59:27,451 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 03:59:27,451 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153114290] [2022-02-09 03:59:27,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 03:59:27,451 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 03:59:27,452 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 03:59:27,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 03:59:27,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 03:59:27,452 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) [2022-02-09 03:59:28,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 03:59:28,693 INFO L93 Difference]: Finished difference Result 3960 states and 13018 transitions. [2022-02-09 03:59:28,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-02-09 03:59:28,693 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 [2022-02-09 03:59:28,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 03:59:28,701 INFO L225 Difference]: With dead ends: 3960 [2022-02-09 03:59:28,701 INFO L226 Difference]: Without dead ends: 3908 [2022-02-09 03:59:28,701 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 596 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=260, Invalid=2392, Unknown=0, NotChecked=0, Total=2652 [2022-02-09 03:59:28,702 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 [2022-02-09 03:59:28,702 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] [2022-02-09 03:59:28,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3908 states. [2022-02-09 03:59:28,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3908 to 3396. [2022-02-09 03:59:28,740 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) [2022-02-09 03:59:28,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3396 states to 3396 states and 11408 transitions. [2022-02-09 03:59:28,746 INFO L78 Accepts]: Start accepts. Automaton has 3396 states and 11408 transitions. Word has length 39 [2022-02-09 03:59:28,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 03:59:28,746 INFO L470 AbstractCegarLoop]: Abstraction has 3396 states and 11408 transitions. [2022-02-09 03:59:28,747 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) [2022-02-09 03:59:28,747 INFO L276 IsEmpty]: Start isEmpty. Operand 3396 states and 11408 transitions. [2022-02-09 03:59:28,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 03:59:28,751 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 03:59:28,751 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 03:59:28,751 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-02-09 03:59:28,751 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 03:59:28,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 03:59:28,752 INFO L85 PathProgramCache]: Analyzing trace with hash -341074900, now seen corresponding path program 29 times [2022-02-09 03:59:28,752 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 03:59:28,752 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874052153] [2022-02-09 03:59:28,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 03:59:28,752 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 03:59:28,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 03:59:28,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 03:59:28,979 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 03:59:28,979 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874052153] [2022-02-09 03:59:28,979 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874052153] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 03:59:28,979 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 03:59:28,979 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 03:59:28,979 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680035869] [2022-02-09 03:59:28,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 03:59:28,980 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 03:59:28,980 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 03:59:28,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 03:59:28,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 03:59:28,980 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) [2022-02-09 03:59:30,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 03:59:30,071 INFO L93 Difference]: Finished difference Result 3933 states and 12929 transitions. [2022-02-09 03:59:30,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-09 03:59:30,071 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 [2022-02-09 03:59:30,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 03:59:30,080 INFO L225 Difference]: With dead ends: 3933 [2022-02-09 03:59:30,080 INFO L226 Difference]: Without dead ends: 3878 [2022-02-09 03:59:30,081 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 414 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=212, Invalid=1858, Unknown=0, NotChecked=0, Total=2070 [2022-02-09 03:59:30,081 INFO L933 BasicCegarLoop]: 105 mSDtfsCounter, 216 mSDsluCounter, 1201 mSDsCounter, 0 mSdLazyCounter, 1667 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 03:59:30,081 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [216 Valid, 986 Invalid, 1703 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1667 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 03:59:30,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3878 states. [2022-02-09 03:59:30,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3878 to 3396. [2022-02-09 03:59:30,125 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) [2022-02-09 03:59:30,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3396 states to 3396 states and 11406 transitions. [2022-02-09 03:59:30,132 INFO L78 Accepts]: Start accepts. Automaton has 3396 states and 11406 transitions. Word has length 39 [2022-02-09 03:59:30,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 03:59:30,132 INFO L470 AbstractCegarLoop]: Abstraction has 3396 states and 11406 transitions. [2022-02-09 03:59:30,132 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) [2022-02-09 03:59:30,132 INFO L276 IsEmpty]: Start isEmpty. Operand 3396 states and 11406 transitions. [2022-02-09 03:59:30,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 03:59:30,137 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 03:59:30,137 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 03:59:30,137 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-02-09 03:59:30,137 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 03:59:30,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 03:59:30,138 INFO L85 PathProgramCache]: Analyzing trace with hash 831577322, now seen corresponding path program 30 times [2022-02-09 03:59:30,138 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 03:59:30,138 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448340736] [2022-02-09 03:59:30,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 03:59:30,138 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 03:59:30,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 03:59:30,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 03:59:30,371 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 03:59:30,371 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448340736] [2022-02-09 03:59:30,371 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448340736] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 03:59:30,371 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 03:59:30,371 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 03:59:30,371 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757111129] [2022-02-09 03:59:30,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 03:59:30,371 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 03:59:30,371 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 03:59:30,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 03:59:30,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 03:59:30,372 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) [2022-02-09 03:59:31,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 03:59:31,323 INFO L93 Difference]: Finished difference Result 3868 states and 12777 transitions. [2022-02-09 03:59:31,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-02-09 03:59:31,323 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 [2022-02-09 03:59:31,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 03:59:31,331 INFO L225 Difference]: With dead ends: 3868 [2022-02-09 03:59:31,331 INFO L226 Difference]: Without dead ends: 3822 [2022-02-09 03:59:31,331 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 [2022-02-09 03:59:31,332 INFO L933 BasicCegarLoop]: 103 mSDtfsCounter, 207 mSDsluCounter, 1201 mSDsCounter, 0 mSdLazyCounter, 1630 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.5s IncrementalHoareTripleChecker+Time [2022-02-09 03:59:31,332 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [207 Valid, 985 Invalid, 1655 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1630 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-09 03:59:31,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3822 states. [2022-02-09 03:59:31,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3822 to 3400. [2022-02-09 03:59:31,373 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) [2022-02-09 03:59:31,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3400 states to 3400 states and 11414 transitions. [2022-02-09 03:59:31,381 INFO L78 Accepts]: Start accepts. Automaton has 3400 states and 11414 transitions. Word has length 39 [2022-02-09 03:59:31,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 03:59:31,381 INFO L470 AbstractCegarLoop]: Abstraction has 3400 states and 11414 transitions. [2022-02-09 03:59:31,381 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) [2022-02-09 03:59:31,381 INFO L276 IsEmpty]: Start isEmpty. Operand 3400 states and 11414 transitions. [2022-02-09 03:59:31,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 03:59:31,386 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 03:59:31,386 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 03:59:31,386 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-02-09 03:59:31,387 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 03:59:31,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 03:59:31,387 INFO L85 PathProgramCache]: Analyzing trace with hash 584111160, now seen corresponding path program 31 times [2022-02-09 03:59:31,387 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 03:59:31,387 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976767620] [2022-02-09 03:59:31,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 03:59:31,387 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 03:59:31,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 03:59:31,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 03:59:31,609 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 03:59:31,609 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976767620] [2022-02-09 03:59:31,609 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976767620] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 03:59:31,609 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 03:59:31,609 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 03:59:31,609 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332109252] [2022-02-09 03:59:31,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 03:59:31,609 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 03:59:31,609 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 03:59:31,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 03:59:31,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 03:59:31,610 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) [2022-02-09 03:59:32,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 03:59:32,770 INFO L93 Difference]: Finished difference Result 3840 states and 12726 transitions. [2022-02-09 03:59:32,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-09 03:59:32,770 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 [2022-02-09 03:59:32,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 03:59:32,778 INFO L225 Difference]: With dead ends: 3840 [2022-02-09 03:59:32,778 INFO L226 Difference]: Without dead ends: 3791 [2022-02-09 03:59:32,778 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 437 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=218, Invalid=1944, Unknown=0, NotChecked=0, Total=2162 [2022-02-09 03:59:32,779 INFO L933 BasicCegarLoop]: 110 mSDtfsCounter, 210 mSDsluCounter, 1250 mSDsCounter, 0 mSdLazyCounter, 1676 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 03:59:32,779 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [210 Valid, 1062 Invalid, 1710 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1676 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 03:59:32,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3791 states. [2022-02-09 03:59:32,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3791 to 3390. [2022-02-09 03:59:32,821 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) [2022-02-09 03:59:32,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3390 states to 3390 states and 11393 transitions. [2022-02-09 03:59:32,827 INFO L78 Accepts]: Start accepts. Automaton has 3390 states and 11393 transitions. Word has length 39 [2022-02-09 03:59:32,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 03:59:32,828 INFO L470 AbstractCegarLoop]: Abstraction has 3390 states and 11393 transitions. [2022-02-09 03:59:32,828 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) [2022-02-09 03:59:32,828 INFO L276 IsEmpty]: Start isEmpty. Operand 3390 states and 11393 transitions. [2022-02-09 03:59:32,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 03:59:32,833 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 03:59:32,833 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 03:59:32,833 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-02-09 03:59:32,833 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 03:59:32,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 03:59:32,833 INFO L85 PathProgramCache]: Analyzing trace with hash 2122986682, now seen corresponding path program 32 times [2022-02-09 03:59:32,833 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 03:59:32,833 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965794345] [2022-02-09 03:59:32,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 03:59:32,834 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 03:59:32,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 03:59:33,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 03:59:33,107 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 03:59:33,107 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965794345] [2022-02-09 03:59:33,107 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965794345] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 03:59:33,107 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 03:59:33,107 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 03:59:33,107 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126693100] [2022-02-09 03:59:33,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 03:59:33,107 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 03:59:33,107 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 03:59:33,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 03:59:33,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 03:59:33,108 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) [2022-02-09 03:59:34,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 03:59:34,001 INFO L93 Difference]: Finished difference Result 3789 states and 12635 transitions. [2022-02-09 03:59:34,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-09 03:59:34,001 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 [2022-02-09 03:59:34,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 03:59:34,009 INFO L225 Difference]: With dead ends: 3789 [2022-02-09 03:59:34,009 INFO L226 Difference]: Without dead ends: 3722 [2022-02-09 03:59:34,009 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=145, Invalid=1261, Unknown=0, NotChecked=0, Total=1406 [2022-02-09 03:59:34,010 INFO L933 BasicCegarLoop]: 112 mSDtfsCounter, 178 mSDsluCounter, 1143 mSDsCounter, 0 mSdLazyCounter, 1707 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 03:59:34,011 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [178 Valid, 980 Invalid, 1725 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1707 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 03:59:34,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3722 states. [2022-02-09 03:59:34,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3722 to 3430. [2022-02-09 03:59:34,052 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) [2022-02-09 03:59:34,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3430 states to 3430 states and 11501 transitions. [2022-02-09 03:59:34,059 INFO L78 Accepts]: Start accepts. Automaton has 3430 states and 11501 transitions. Word has length 39 [2022-02-09 03:59:34,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 03:59:34,059 INFO L470 AbstractCegarLoop]: Abstraction has 3430 states and 11501 transitions. [2022-02-09 03:59:34,061 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) [2022-02-09 03:59:34,062 INFO L276 IsEmpty]: Start isEmpty. Operand 3430 states and 11501 transitions. [2022-02-09 03:59:34,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 03:59:34,067 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 03:59:34,067 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] [2022-02-09 03:59:34,067 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-02-09 03:59:34,067 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 03:59:34,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 03:59:34,067 INFO L85 PathProgramCache]: Analyzing trace with hash 1992391834, now seen corresponding path program 33 times [2022-02-09 03:59:34,067 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 03:59:34,067 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175489968] [2022-02-09 03:59:34,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 03:59:34,068 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 03:59:34,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 03:59:34,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 03:59:34,313 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 03:59:34,313 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175489968] [2022-02-09 03:59:34,313 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175489968] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 03:59:34,313 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 03:59:34,313 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 03:59:34,313 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876012078] [2022-02-09 03:59:34,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 03:59:34,313 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 03:59:34,313 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 03:59:34,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 03:59:34,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 03:59:34,314 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) [2022-02-09 03:59:35,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 03:59:35,254 INFO L93 Difference]: Finished difference Result 3777 states and 12595 transitions. [2022-02-09 03:59:35,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-09 03:59:35,254 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 [2022-02-09 03:59:35,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 03:59:35,262 INFO L225 Difference]: With dead ends: 3777 [2022-02-09 03:59:35,263 INFO L226 Difference]: Without dead ends: 3714 [2022-02-09 03:59:35,263 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=153, Invalid=1329, Unknown=0, NotChecked=0, Total=1482 [2022-02-09 03:59:35,263 INFO L933 BasicCegarLoop]: 112 mSDtfsCounter, 189 mSDsluCounter, 1135 mSDsCounter, 0 mSdLazyCounter, 1691 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 03:59:35,263 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [189 Valid, 985 Invalid, 1716 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1691 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 03:59:35,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3714 states. [2022-02-09 03:59:35,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3714 to 3422. [2022-02-09 03:59:35,306 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) [2022-02-09 03:59:35,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3422 states to 3422 states and 11477 transitions. [2022-02-09 03:59:35,312 INFO L78 Accepts]: Start accepts. Automaton has 3422 states and 11477 transitions. Word has length 39 [2022-02-09 03:59:35,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 03:59:35,312 INFO L470 AbstractCegarLoop]: Abstraction has 3422 states and 11477 transitions. [2022-02-09 03:59:35,312 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) [2022-02-09 03:59:35,313 INFO L276 IsEmpty]: Start isEmpty. Operand 3422 states and 11477 transitions. [2022-02-09 03:59:35,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 03:59:35,317 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 03:59:35,317 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] [2022-02-09 03:59:35,317 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-02-09 03:59:35,317 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 03:59:35,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 03:59:35,318 INFO L85 PathProgramCache]: Analyzing trace with hash 1462491386, now seen corresponding path program 34 times [2022-02-09 03:59:35,318 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 03:59:35,318 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883441688] [2022-02-09 03:59:35,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 03:59:35,318 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 03:59:35,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 03:59:35,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 03:59:35,537 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 03:59:35,537 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883441688] [2022-02-09 03:59:35,537 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883441688] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 03:59:35,538 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 03:59:35,538 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 03:59:35,538 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388764720] [2022-02-09 03:59:35,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 03:59:35,538 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 03:59:35,538 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 03:59:35,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 03:59:35,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 03:59:35,538 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) [2022-02-09 03:59:36,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 03:59:36,466 INFO L93 Difference]: Finished difference Result 3789 states and 12623 transitions. [2022-02-09 03:59:36,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-09 03:59:36,466 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 [2022-02-09 03:59:36,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 03:59:36,474 INFO L225 Difference]: With dead ends: 3789 [2022-02-09 03:59:36,474 INFO L226 Difference]: Without dead ends: 3666 [2022-02-09 03:59:36,474 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 261 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=159, Invalid=1401, Unknown=0, NotChecked=0, Total=1560 [2022-02-09 03:59:36,475 INFO L933 BasicCegarLoop]: 117 mSDtfsCounter, 188 mSDsluCounter, 1192 mSDsCounter, 0 mSdLazyCounter, 1700 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 03:59:36,475 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [188 Valid, 1048 Invalid, 1722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1700 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 03:59:36,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3666 states. [2022-02-09 03:59:36,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3666 to 3390. [2022-02-09 03:59:36,519 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) [2022-02-09 03:59:36,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3390 states to 3390 states and 11377 transitions. [2022-02-09 03:59:36,526 INFO L78 Accepts]: Start accepts. Automaton has 3390 states and 11377 transitions. Word has length 39 [2022-02-09 03:59:36,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 03:59:36,527 INFO L470 AbstractCegarLoop]: Abstraction has 3390 states and 11377 transitions. [2022-02-09 03:59:36,527 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) [2022-02-09 03:59:36,527 INFO L276 IsEmpty]: Start isEmpty. Operand 3390 states and 11377 transitions. [2022-02-09 03:59:36,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 03:59:36,532 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 03:59:36,532 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 03:59:36,532 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-02-09 03:59:36,532 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 03:59:36,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 03:59:36,533 INFO L85 PathProgramCache]: Analyzing trace with hash 744080216, now seen corresponding path program 35 times [2022-02-09 03:59:36,533 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 03:59:36,533 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170286799] [2022-02-09 03:59:36,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 03:59:36,533 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 03:59:36,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 03:59:36,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 03:59:36,769 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 03:59:36,769 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170286799] [2022-02-09 03:59:36,769 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170286799] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 03:59:36,769 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 03:59:36,769 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 03:59:36,769 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411304371] [2022-02-09 03:59:36,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 03:59:36,770 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 03:59:36,770 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 03:59:36,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 03:59:36,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 03:59:36,770 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) [2022-02-09 03:59:38,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 03:59:38,398 INFO L93 Difference]: Finished difference Result 5596 states and 19001 transitions. [2022-02-09 03:59:38,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-02-09 03:59:38,398 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 [2022-02-09 03:59:38,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 03:59:38,417 INFO L225 Difference]: With dead ends: 5596 [2022-02-09 03:59:38,417 INFO L226 Difference]: Without dead ends: 5553 [2022-02-09 03:59:38,418 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 865 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=309, Invalid=3113, Unknown=0, NotChecked=0, Total=3422 [2022-02-09 03:59:38,418 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 [2022-02-09 03:59:38,418 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] [2022-02-09 03:59:38,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5553 states. [2022-02-09 03:59:38,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5553 to 3484. [2022-02-09 03:59:38,481 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) [2022-02-09 03:59:38,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3484 states to 3484 states and 11684 transitions. [2022-02-09 03:59:38,490 INFO L78 Accepts]: Start accepts. Automaton has 3484 states and 11684 transitions. Word has length 39 [2022-02-09 03:59:38,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 03:59:38,490 INFO L470 AbstractCegarLoop]: Abstraction has 3484 states and 11684 transitions. [2022-02-09 03:59:38,491 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) [2022-02-09 03:59:38,491 INFO L276 IsEmpty]: Start isEmpty. Operand 3484 states and 11684 transitions. [2022-02-09 03:59:38,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 03:59:38,497 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 03:59:38,497 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] [2022-02-09 03:59:38,497 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-02-09 03:59:38,497 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 03:59:38,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 03:59:38,497 INFO L85 PathProgramCache]: Analyzing trace with hash -1036518086, now seen corresponding path program 36 times [2022-02-09 03:59:38,497 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 03:59:38,497 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417517541] [2022-02-09 03:59:38,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 03:59:38,498 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 03:59:38,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 03:59:38,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 03:59:38,739 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 03:59:38,739 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417517541] [2022-02-09 03:59:38,739 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417517541] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 03:59:38,739 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 03:59:38,739 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 03:59:38,739 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938759688] [2022-02-09 03:59:38,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 03:59:38,740 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 03:59:38,740 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 03:59:38,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 03:59:38,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 03:59:38,740 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) [2022-02-09 03:59:40,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 03:59:40,732 INFO L93 Difference]: Finished difference Result 6457 states and 21931 transitions. [2022-02-09 03:59:40,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-02-09 03:59:40,732 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 [2022-02-09 03:59:40,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 03:59:40,745 INFO L225 Difference]: With dead ends: 6457 [2022-02-09 03:59:40,745 INFO L226 Difference]: Without dead ends: 6405 [2022-02-09 03:59:40,746 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1131 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=351, Invalid=3809, Unknown=0, NotChecked=0, Total=4160 [2022-02-09 03:59:40,746 INFO L933 BasicCegarLoop]: 206 mSDtfsCounter, 463 mSDsluCounter, 2095 mSDsCounter, 0 mSdLazyCounter, 2794 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s 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, 1.0s IncrementalHoareTripleChecker+Time [2022-02-09 03:59:40,746 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [463 Valid, 2016 Invalid, 2867 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 2794 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-02-09 03:59:40,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6405 states. [2022-02-09 03:59:40,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6405 to 3478. [2022-02-09 03:59:40,798 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) [2022-02-09 03:59:40,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3478 states to 3478 states and 11669 transitions. [2022-02-09 03:59:40,804 INFO L78 Accepts]: Start accepts. Automaton has 3478 states and 11669 transitions. Word has length 39 [2022-02-09 03:59:40,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 03:59:40,805 INFO L470 AbstractCegarLoop]: Abstraction has 3478 states and 11669 transitions. [2022-02-09 03:59:40,805 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) [2022-02-09 03:59:40,805 INFO L276 IsEmpty]: Start isEmpty. Operand 3478 states and 11669 transitions. [2022-02-09 03:59:40,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 03:59:40,809 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 03:59:40,809 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 03:59:40,809 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-02-09 03:59:40,809 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 03:59:40,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 03:59:40,810 INFO L85 PathProgramCache]: Analyzing trace with hash 1662563786, now seen corresponding path program 37 times [2022-02-09 03:59:40,810 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 03:59:40,810 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451344380] [2022-02-09 03:59:40,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 03:59:40,810 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 03:59:40,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 03:59:41,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 03:59:41,066 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 03:59:41,066 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451344380] [2022-02-09 03:59:41,066 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451344380] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 03:59:41,066 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 03:59:41,066 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 03:59:41,067 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866427288] [2022-02-09 03:59:41,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 03:59:41,067 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 03:59:41,067 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 03:59:41,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 03:59:41,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 03:59:41,067 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) [2022-02-09 03:59:42,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 03:59:42,364 INFO L93 Difference]: Finished difference Result 5485 states and 18455 transitions. [2022-02-09 03:59:42,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-02-09 03:59:42,364 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 [2022-02-09 03:59:42,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 03:59:42,375 INFO L225 Difference]: With dead ends: 5485 [2022-02-09 03:59:42,375 INFO L226 Difference]: Without dead ends: 5430 [2022-02-09 03:59:42,376 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 573 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=244, Invalid=2306, Unknown=0, NotChecked=0, Total=2550 [2022-02-09 03:59:42,376 INFO L933 BasicCegarLoop]: 168 mSDtfsCounter, 361 mSDsluCounter, 1741 mSDsCounter, 0 mSdLazyCounter, 2248 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.7s IncrementalHoareTripleChecker+Time [2022-02-09 03:59:42,376 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [361 Valid, 1616 Invalid, 2293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 2248 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-09 03:59:42,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5430 states. [2022-02-09 03:59:42,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5430 to 3562. [2022-02-09 03:59:42,424 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) [2022-02-09 03:59:42,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3562 states to 3562 states and 11947 transitions. [2022-02-09 03:59:42,431 INFO L78 Accepts]: Start accepts. Automaton has 3562 states and 11947 transitions. Word has length 39 [2022-02-09 03:59:42,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 03:59:42,431 INFO L470 AbstractCegarLoop]: Abstraction has 3562 states and 11947 transitions. [2022-02-09 03:59:42,431 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) [2022-02-09 03:59:42,431 INFO L276 IsEmpty]: Start isEmpty. Operand 3562 states and 11947 transitions. [2022-02-09 03:59:42,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 03:59:42,436 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 03:59:42,436 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] [2022-02-09 03:59:42,436 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-02-09 03:59:42,436 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 03:59:42,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 03:59:42,436 INFO L85 PathProgramCache]: Analyzing trace with hash -1459751288, now seen corresponding path program 38 times [2022-02-09 03:59:42,436 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 03:59:42,436 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492893256] [2022-02-09 03:59:42,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 03:59:42,436 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 03:59:42,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 03:59:42,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 03:59:42,679 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 03:59:42,679 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492893256] [2022-02-09 03:59:42,679 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492893256] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 03:59:42,679 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 03:59:42,679 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 03:59:42,679 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684841587] [2022-02-09 03:59:42,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 03:59:42,679 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 03:59:42,679 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 03:59:42,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 03:59:42,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 03:59:42,680 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) [2022-02-09 03:59:44,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 03:59:44,287 INFO L93 Difference]: Finished difference Result 6346 states and 21389 transitions. [2022-02-09 03:59:44,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-02-09 03:59:44,288 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 [2022-02-09 03:59:44,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 03:59:44,302 INFO L225 Difference]: With dead ends: 6346 [2022-02-09 03:59:44,302 INFO L226 Difference]: Without dead ends: 6286 [2022-02-09 03:59:44,303 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 [2022-02-09 03:59:44,303 INFO L933 BasicCegarLoop]: 202 mSDtfsCounter, 387 mSDsluCounter, 2051 mSDsCounter, 0 mSdLazyCounter, 2562 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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, 0.9s IncrementalHoareTripleChecker+Time [2022-02-09 03:59:44,303 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [387 Valid, 1964 Invalid, 2610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 2562 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-09 03:59:44,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6286 states. [2022-02-09 03:59:44,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6286 to 3560. [2022-02-09 03:59:44,368 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) [2022-02-09 03:59:44,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3560 states to 3560 states and 11942 transitions. [2022-02-09 03:59:44,376 INFO L78 Accepts]: Start accepts. Automaton has 3560 states and 11942 transitions. Word has length 39 [2022-02-09 03:59:44,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 03:59:44,376 INFO L470 AbstractCegarLoop]: Abstraction has 3560 states and 11942 transitions. [2022-02-09 03:59:44,376 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) [2022-02-09 03:59:44,376 INFO L276 IsEmpty]: Start isEmpty. Operand 3560 states and 11942 transitions. [2022-02-09 03:59:44,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 03:59:44,382 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 03:59:44,382 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 03:59:44,382 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-02-09 03:59:44,382 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 03:59:44,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 03:59:44,382 INFO L85 PathProgramCache]: Analyzing trace with hash 957812406, now seen corresponding path program 39 times [2022-02-09 03:59:44,382 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 03:59:44,382 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017475890] [2022-02-09 03:59:44,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 03:59:44,383 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 03:59:44,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 03:59:44,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 03:59:44,643 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 03:59:44,644 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017475890] [2022-02-09 03:59:44,644 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017475890] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 03:59:44,644 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 03:59:44,644 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 03:59:44,644 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225756279] [2022-02-09 03:59:44,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 03:59:44,644 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 03:59:44,644 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 03:59:44,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 03:59:44,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 03:59:44,646 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) [2022-02-09 03:59:45,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 03:59:45,862 INFO L93 Difference]: Finished difference Result 5424 states and 18314 transitions. [2022-02-09 03:59:45,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-02-09 03:59:45,863 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 [2022-02-09 03:59:45,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 03:59:45,892 INFO L225 Difference]: With dead ends: 5424 [2022-02-09 03:59:45,892 INFO L226 Difference]: Without dead ends: 5333 [2022-02-09 03:59:45,892 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 [2022-02-09 03:59:45,893 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 [2022-02-09 03:59:45,893 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] [2022-02-09 03:59:45,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5333 states. [2022-02-09 03:59:45,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5333 to 3560. [2022-02-09 03:59:45,937 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) [2022-02-09 03:59:45,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3560 states to 3560 states and 11936 transitions. [2022-02-09 03:59:45,944 INFO L78 Accepts]: Start accepts. Automaton has 3560 states and 11936 transitions. Word has length 39 [2022-02-09 03:59:45,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 03:59:45,944 INFO L470 AbstractCegarLoop]: Abstraction has 3560 states and 11936 transitions. [2022-02-09 03:59:45,944 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) [2022-02-09 03:59:45,944 INFO L276 IsEmpty]: Start isEmpty. Operand 3560 states and 11936 transitions. [2022-02-09 03:59:45,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 03:59:45,949 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 03:59:45,949 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] [2022-02-09 03:59:45,949 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-02-09 03:59:45,949 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 03:59:45,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 03:59:45,950 INFO L85 PathProgramCache]: Analyzing trace with hash -544669800, now seen corresponding path program 40 times [2022-02-09 03:59:45,950 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 03:59:45,950 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374894953] [2022-02-09 03:59:45,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 03:59:45,950 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 03:59:45,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 03:59:46,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 03:59:46,178 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 03:59:46,178 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374894953] [2022-02-09 03:59:46,178 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374894953] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 03:59:46,178 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 03:59:46,178 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 03:59:46,178 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656552923] [2022-02-09 03:59:46,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 03:59:46,178 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 03:59:46,179 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 03:59:46,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 03:59:46,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 03:59:46,179 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) [2022-02-09 03:59:47,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 03:59:47,599 INFO L93 Difference]: Finished difference Result 6237 states and 21116 transitions. [2022-02-09 03:59:47,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-02-09 03:59:47,599 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 [2022-02-09 03:59:47,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 03:59:47,611 INFO L225 Difference]: With dead ends: 6237 [2022-02-09 03:59:47,612 INFO L226 Difference]: Without dead ends: 6121 [2022-02-09 03:59:47,612 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 568 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=235, Invalid=2315, Unknown=0, NotChecked=0, Total=2550 [2022-02-09 03:59:47,612 INFO L933 BasicCegarLoop]: 203 mSDtfsCounter, 340 mSDsluCounter, 2053 mSDsCounter, 0 mSdLazyCounter, 2505 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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, 0.8s IncrementalHoareTripleChecker+Time [2022-02-09 03:59:47,613 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [340 Valid, 1970 Invalid, 2544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 2505 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-09 03:59:47,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6121 states. [2022-02-09 03:59:47,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6121 to 3538. [2022-02-09 03:59:47,665 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) [2022-02-09 03:59:47,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3538 states to 3538 states and 11867 transitions. [2022-02-09 03:59:47,672 INFO L78 Accepts]: Start accepts. Automaton has 3538 states and 11867 transitions. Word has length 39 [2022-02-09 03:59:47,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 03:59:47,672 INFO L470 AbstractCegarLoop]: Abstraction has 3538 states and 11867 transitions. [2022-02-09 03:59:47,672 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) [2022-02-09 03:59:47,672 INFO L276 IsEmpty]: Start isEmpty. Operand 3538 states and 11867 transitions. [2022-02-09 03:59:47,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 03:59:47,677 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 03:59:47,677 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 03:59:47,677 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-02-09 03:59:47,677 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 03:59:47,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 03:59:47,677 INFO L85 PathProgramCache]: Analyzing trace with hash 192048216, now seen corresponding path program 41 times [2022-02-09 03:59:47,677 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 03:59:47,678 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170454482] [2022-02-09 03:59:47,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 03:59:47,678 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 03:59:47,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 03:59:47,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 03:59:47,890 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 03:59:47,890 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170454482] [2022-02-09 03:59:47,890 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170454482] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 03:59:47,890 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 03:59:47,890 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 03:59:47,890 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056611860] [2022-02-09 03:59:47,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 03:59:47,890 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 03:59:47,890 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 03:59:47,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 03:59:47,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 03:59:47,891 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) [2022-02-09 03:59:49,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 03:59:49,066 INFO L93 Difference]: Finished difference Result 3974 states and 13117 transitions. [2022-02-09 03:59:49,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-02-09 03:59:49,066 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 [2022-02-09 03:59:49,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 03:59:49,074 INFO L225 Difference]: With dead ends: 3974 [2022-02-09 03:59:49,074 INFO L226 Difference]: Without dead ends: 3868 [2022-02-09 03:59:49,075 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 470 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=222, Invalid=2034, Unknown=0, NotChecked=0, Total=2256 [2022-02-09 03:59:49,075 INFO L933 BasicCegarLoop]: 103 mSDtfsCounter, 230 mSDsluCounter, 1197 mSDsCounter, 0 mSdLazyCounter, 1743 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 03:59:49,075 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [230 Valid, 960 Invalid, 1772 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1743 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 03:59:49,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3868 states. [2022-02-09 03:59:49,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3868 to 3554. [2022-02-09 03:59:49,121 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) [2022-02-09 03:59:49,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3554 states to 3554 states and 11919 transitions. [2022-02-09 03:59:49,129 INFO L78 Accepts]: Start accepts. Automaton has 3554 states and 11919 transitions. Word has length 39 [2022-02-09 03:59:49,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 03:59:49,129 INFO L470 AbstractCegarLoop]: Abstraction has 3554 states and 11919 transitions. [2022-02-09 03:59:49,129 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) [2022-02-09 03:59:49,129 INFO L276 IsEmpty]: Start isEmpty. Operand 3554 states and 11919 transitions. [2022-02-09 03:59:49,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 03:59:49,134 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 03:59:49,134 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 03:59:49,134 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-02-09 03:59:49,134 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 03:59:49,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 03:59:49,134 INFO L85 PathProgramCache]: Analyzing trace with hash -1302842684, now seen corresponding path program 42 times [2022-02-09 03:59:49,135 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 03:59:49,135 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329617772] [2022-02-09 03:59:49,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 03:59:49,135 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 03:59:49,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 03:59:49,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 03:59:49,379 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 03:59:49,379 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329617772] [2022-02-09 03:59:49,379 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329617772] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 03:59:49,379 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 03:59:49,379 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 03:59:49,379 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789786798] [2022-02-09 03:59:49,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 03:59:49,380 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 03:59:49,380 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 03:59:49,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 03:59:49,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 03:59:49,380 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) [2022-02-09 03:59:50,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 03:59:50,617 INFO L93 Difference]: Finished difference Result 4043 states and 13251 transitions. [2022-02-09 03:59:50,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-02-09 03:59:50,618 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 [2022-02-09 03:59:50,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 03:59:50,626 INFO L225 Difference]: With dead ends: 4043 [2022-02-09 03:59:50,626 INFO L226 Difference]: Without dead ends: 3979 [2022-02-09 03:59:50,627 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 568 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=247, Invalid=2303, Unknown=0, NotChecked=0, Total=2550 [2022-02-09 03:59:50,627 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 03:59:50,627 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [241 Valid, 940 Invalid, 1771 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1732 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 03:59:50,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3979 states. [2022-02-09 03:59:50,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3979 to 3554. [2022-02-09 03:59:50,678 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) [2022-02-09 03:59:50,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3554 states to 3554 states and 11919 transitions. [2022-02-09 03:59:50,689 INFO L78 Accepts]: Start accepts. Automaton has 3554 states and 11919 transitions. Word has length 39 [2022-02-09 03:59:50,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 03:59:50,689 INFO L470 AbstractCegarLoop]: Abstraction has 3554 states and 11919 transitions. [2022-02-09 03:59:50,689 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) [2022-02-09 03:59:50,689 INFO L276 IsEmpty]: Start isEmpty. Operand 3554 states and 11919 transitions. [2022-02-09 03:59:50,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 03:59:50,695 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 03:59:50,695 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] [2022-02-09 03:59:50,696 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-02-09 03:59:50,696 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 03:59:50,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 03:59:50,696 INFO L85 PathProgramCache]: Analyzing trace with hash -384359114, now seen corresponding path program 43 times [2022-02-09 03:59:50,696 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 03:59:50,696 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567176147] [2022-02-09 03:59:50,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 03:59:50,696 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 03:59:50,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 03:59:50,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 03:59:50,957 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 03:59:50,957 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567176147] [2022-02-09 03:59:50,957 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567176147] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 03:59:50,957 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 03:59:50,957 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 03:59:50,957 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808198507] [2022-02-09 03:59:50,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 03:59:50,958 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 03:59:50,958 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 03:59:50,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 03:59:50,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 03:59:50,958 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) [2022-02-09 03:59:51,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 03:59:51,899 INFO L93 Difference]: Finished difference Result 3940 states and 12979 transitions. [2022-02-09 03:59:51,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-02-09 03:59:51,899 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 [2022-02-09 03:59:51,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 03:59:51,907 INFO L225 Difference]: With dead ends: 3940 [2022-02-09 03:59:51,907 INFO L226 Difference]: Without dead ends: 3897 [2022-02-09 03:59:51,908 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 311 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=172, Invalid=1550, Unknown=0, NotChecked=0, Total=1722 [2022-02-09 03:59:51,908 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 208 mSDsluCounter, 1173 mSDsCounter, 0 mSdLazyCounter, 1581 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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 [2022-02-09 03:59:51,908 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] [2022-02-09 03:59:51,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3897 states. [2022-02-09 03:59:51,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3897 to 3560. [2022-02-09 03:59:51,951 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) [2022-02-09 03:59:51,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3560 states to 3560 states and 11932 transitions. [2022-02-09 03:59:51,958 INFO L78 Accepts]: Start accepts. Automaton has 3560 states and 11932 transitions. Word has length 39 [2022-02-09 03:59:51,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 03:59:51,959 INFO L470 AbstractCegarLoop]: Abstraction has 3560 states and 11932 transitions. [2022-02-09 03:59:51,959 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) [2022-02-09 03:59:51,959 INFO L276 IsEmpty]: Start isEmpty. Operand 3560 states and 11932 transitions. [2022-02-09 03:59:51,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 03:59:51,964 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 03:59:51,964 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] [2022-02-09 03:59:51,964 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-02-09 03:59:51,964 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 03:59:51,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 03:59:51,965 INFO L85 PathProgramCache]: Analyzing trace with hash -364210380, now seen corresponding path program 44 times [2022-02-09 03:59:51,965 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 03:59:51,965 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448558952] [2022-02-09 03:59:51,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 03:59:51,965 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 03:59:51,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 03:59:52,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 03:59:52,187 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 03:59:52,187 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448558952] [2022-02-09 03:59:52,187 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448558952] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 03:59:52,187 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 03:59:52,190 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 03:59:52,190 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578993004] [2022-02-09 03:59:52,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 03:59:52,190 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 03:59:52,190 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 03:59:52,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 03:59:52,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 03:59:52,191 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) [2022-02-09 03:59:53,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 03:59:53,187 INFO L93 Difference]: Finished difference Result 3897 states and 12878 transitions. [2022-02-09 03:59:53,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-02-09 03:59:53,187 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 [2022-02-09 03:59:53,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 03:59:53,196 INFO L225 Difference]: With dead ends: 3897 [2022-02-09 03:59:53,196 INFO L226 Difference]: Without dead ends: 3854 [2022-02-09 03:59:53,196 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 363 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=186, Invalid=1706, Unknown=0, NotChecked=0, Total=1892 [2022-02-09 03:59:53,196 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 [2022-02-09 03:59:53,197 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] [2022-02-09 03:59:53,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3854 states. [2022-02-09 03:59:53,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3854 to 3556. [2022-02-09 03:59:53,246 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) [2022-02-09 03:59:53,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3556 states to 3556 states and 11922 transitions. [2022-02-09 03:59:53,254 INFO L78 Accepts]: Start accepts. Automaton has 3556 states and 11922 transitions. Word has length 39 [2022-02-09 03:59:53,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 03:59:53,254 INFO L470 AbstractCegarLoop]: Abstraction has 3556 states and 11922 transitions. [2022-02-09 03:59:53,254 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) [2022-02-09 03:59:53,255 INFO L276 IsEmpty]: Start isEmpty. Operand 3556 states and 11922 transitions. [2022-02-09 03:59:53,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 03:59:53,261 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 03:59:53,261 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] [2022-02-09 03:59:53,261 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-02-09 03:59:53,261 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 03:59:53,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 03:59:53,262 INFO L85 PathProgramCache]: Analyzing trace with hash 788293108, now seen corresponding path program 45 times [2022-02-09 03:59:53,262 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 03:59:53,262 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464035777] [2022-02-09 03:59:53,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 03:59:53,262 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 03:59:53,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 03:59:53,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 03:59:53,514 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 03:59:53,514 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464035777] [2022-02-09 03:59:53,514 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464035777] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 03:59:53,514 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 03:59:53,514 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 03:59:53,514 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186718095] [2022-02-09 03:59:53,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 03:59:53,514 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 03:59:53,514 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 03:59:53,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 03:59:53,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 03:59:53,515 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) [2022-02-09 03:59:54,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 03:59:54,494 INFO L93 Difference]: Finished difference Result 3918 states and 12938 transitions. [2022-02-09 03:59:54,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-09 03:59:54,494 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 [2022-02-09 03:59:54,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 03:59:54,502 INFO L225 Difference]: With dead ends: 3918 [2022-02-09 03:59:54,502 INFO L226 Difference]: Without dead ends: 3858 [2022-02-09 03:59:54,502 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 339 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=183, Invalid=1623, Unknown=0, NotChecked=0, Total=1806 [2022-02-09 03:59:54,502 INFO L933 BasicCegarLoop]: 94 mSDtfsCounter, 216 mSDsluCounter, 1111 mSDsCounter, 0 mSdLazyCounter, 1503 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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 [2022-02-09 03:59:54,503 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] [2022-02-09 03:59:54,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3858 states. [2022-02-09 03:59:54,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3858 to 3554. [2022-02-09 03:59:54,543 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) [2022-02-09 03:59:54,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3554 states to 3554 states and 11917 transitions. [2022-02-09 03:59:54,550 INFO L78 Accepts]: Start accepts. Automaton has 3554 states and 11917 transitions. Word has length 39 [2022-02-09 03:59:54,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 03:59:54,550 INFO L470 AbstractCegarLoop]: Abstraction has 3554 states and 11917 transitions. [2022-02-09 03:59:54,550 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) [2022-02-09 03:59:54,550 INFO L276 IsEmpty]: Start isEmpty. Operand 3554 states and 11917 transitions. [2022-02-09 03:59:54,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 03:59:54,555 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 03:59:54,555 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] [2022-02-09 03:59:54,555 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-02-09 03:59:54,555 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 03:59:54,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 03:59:54,556 INFO L85 PathProgramCache]: Analyzing trace with hash -1291273434, now seen corresponding path program 46 times [2022-02-09 03:59:54,556 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 03:59:54,556 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111794914] [2022-02-09 03:59:54,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 03:59:54,556 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 03:59:54,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 03:59:54,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 03:59:54,751 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 03:59:54,751 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111794914] [2022-02-09 03:59:54,751 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111794914] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 03:59:54,751 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 03:59:54,751 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-09 03:59:54,751 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715244196] [2022-02-09 03:59:54,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 03:59:54,751 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-02-09 03:59:54,751 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 03:59:54,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-02-09 03:59:54,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2022-02-09 03:59:54,752 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) [2022-02-09 03:59:55,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 03:59:55,558 INFO L93 Difference]: Finished difference Result 3886 states and 12878 transitions. [2022-02-09 03:59:55,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-09 03:59:55,559 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 [2022-02-09 03:59:55,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 03:59:55,567 INFO L225 Difference]: With dead ends: 3886 [2022-02-09 03:59:55,567 INFO L226 Difference]: Without dead ends: 3810 [2022-02-09 03:59:55,567 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 [2022-02-09 03:59:55,567 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, 0.5s IncrementalHoareTripleChecker+Time [2022-02-09 03:59:55,568 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [179 Valid, 792 Invalid, 1387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1364 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-09 03:59:55,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3810 states. [2022-02-09 03:59:55,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3810 to 3562. [2022-02-09 03:59:55,611 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) [2022-02-09 03:59:55,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3562 states to 3562 states and 11933 transitions. [2022-02-09 03:59:55,618 INFO L78 Accepts]: Start accepts. Automaton has 3562 states and 11933 transitions. Word has length 39 [2022-02-09 03:59:55,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 03:59:55,619 INFO L470 AbstractCegarLoop]: Abstraction has 3562 states and 11933 transitions. [2022-02-09 03:59:55,619 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) [2022-02-09 03:59:55,619 INFO L276 IsEmpty]: Start isEmpty. Operand 3562 states and 11933 transitions. [2022-02-09 03:59:55,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 03:59:55,624 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 03:59:55,624 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 03:59:55,624 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-02-09 03:59:55,624 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 03:59:55,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 03:59:55,624 INFO L85 PathProgramCache]: Analyzing trace with hash 1985640250, now seen corresponding path program 47 times [2022-02-09 03:59:55,624 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 03:59:55,624 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824000079] [2022-02-09 03:59:55,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 03:59:55,624 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 03:59:55,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 03:59:55,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 03:59:55,867 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 03:59:55,867 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824000079] [2022-02-09 03:59:55,867 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824000079] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 03:59:55,867 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 03:59:55,867 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 03:59:55,867 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821830051] [2022-02-09 03:59:55,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 03:59:55,868 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 03:59:55,868 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 03:59:55,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 03:59:55,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 03:59:55,868 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) [2022-02-09 03:59:56,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 03:59:56,786 INFO L93 Difference]: Finished difference Result 3868 states and 12824 transitions. [2022-02-09 03:59:56,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-02-09 03:59:56,786 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 [2022-02-09 03:59:56,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 03:59:56,794 INFO L225 Difference]: With dead ends: 3868 [2022-02-09 03:59:56,794 INFO L226 Difference]: Without dead ends: 3798 [2022-02-09 03:59:56,794 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 291 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=164, Invalid=1476, Unknown=0, NotChecked=0, Total=1640 [2022-02-09 03:59:56,794 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, 0.5s IncrementalHoareTripleChecker+Time [2022-02-09 03:59:56,795 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [199 Valid, 891 Invalid, 1508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1477 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-09 03:59:56,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3798 states. [2022-02-09 03:59:56,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3798 to 3550. [2022-02-09 03:59:56,833 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) [2022-02-09 03:59:56,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3550 states to 3550 states and 11905 transitions. [2022-02-09 03:59:56,840 INFO L78 Accepts]: Start accepts. Automaton has 3550 states and 11905 transitions. Word has length 39 [2022-02-09 03:59:56,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 03:59:56,840 INFO L470 AbstractCegarLoop]: Abstraction has 3550 states and 11905 transitions. [2022-02-09 03:59:56,840 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) [2022-02-09 03:59:56,840 INFO L276 IsEmpty]: Start isEmpty. Operand 3550 states and 11905 transitions. [2022-02-09 03:59:56,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 03:59:56,845 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 03:59:56,845 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 03:59:56,845 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-02-09 03:59:56,845 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 03:59:56,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 03:59:56,845 INFO L85 PathProgramCache]: Analyzing trace with hash -1463143366, now seen corresponding path program 48 times [2022-02-09 03:59:56,845 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 03:59:56,845 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789571700] [2022-02-09 03:59:56,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 03:59:56,845 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 03:59:56,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 03:59:57,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 03:59:57,061 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 03:59:57,061 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789571700] [2022-02-09 03:59:57,061 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789571700] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 03:59:57,061 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 03:59:57,061 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 03:59:57,061 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200166342] [2022-02-09 03:59:57,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 03:59:57,062 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 03:59:57,062 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 03:59:57,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 03:59:57,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 03:59:57,062 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) [2022-02-09 03:59:58,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 03:59:58,606 INFO L93 Difference]: Finished difference Result 5576 states and 18929 transitions. [2022-02-09 03:59:58,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-02-09 03:59:58,606 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 [2022-02-09 03:59:58,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 03:59:58,618 INFO L225 Difference]: With dead ends: 5576 [2022-02-09 03:59:58,619 INFO L226 Difference]: Without dead ends: 5533 [2022-02-09 03:59:58,619 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 [2022-02-09 03:59:58,620 INFO L933 BasicCegarLoop]: 162 mSDtfsCounter, 395 mSDsluCounter, 1727 mSDsCounter, 0 mSdLazyCounter, 2318 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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, 0.8s IncrementalHoareTripleChecker+Time [2022-02-09 03:59:58,620 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [395 Valid, 1602 Invalid, 2381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 2318 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-09 03:59:58,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5533 states. [2022-02-09 03:59:58,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5533 to 3576. [2022-02-09 03:59:58,674 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) [2022-02-09 03:59:58,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3576 states to 3576 states and 11988 transitions. [2022-02-09 03:59:58,682 INFO L78 Accepts]: Start accepts. Automaton has 3576 states and 11988 transitions. Word has length 39 [2022-02-09 03:59:58,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 03:59:58,682 INFO L470 AbstractCegarLoop]: Abstraction has 3576 states and 11988 transitions. [2022-02-09 03:59:58,682 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) [2022-02-09 03:59:58,682 INFO L276 IsEmpty]: Start isEmpty. Operand 3576 states and 11988 transitions. [2022-02-09 03:59:58,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 03:59:58,687 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 03:59:58,687 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] [2022-02-09 03:59:58,687 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-02-09 03:59:58,687 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 03:59:58,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 03:59:58,687 INFO L85 PathProgramCache]: Analyzing trace with hash 1051225628, now seen corresponding path program 49 times [2022-02-09 03:59:58,687 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 03:59:58,688 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630593404] [2022-02-09 03:59:58,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 03:59:58,688 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 03:59:58,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 03:59:58,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 03:59:58,936 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 03:59:58,936 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630593404] [2022-02-09 03:59:58,936 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630593404] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 03:59:58,936 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 03:59:58,936 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 03:59:58,936 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533301827] [2022-02-09 03:59:58,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 03:59:58,937 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 03:59:58,937 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 03:59:58,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 03:59:58,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 03:59:58,937 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) [2022-02-09 04:00:00,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:00:00,759 INFO L93 Difference]: Finished difference Result 6437 states and 21859 transitions. [2022-02-09 04:00:00,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-02-09 04:00:00,760 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 [2022-02-09 04:00:00,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:00:00,775 INFO L225 Difference]: With dead ends: 6437 [2022-02-09 04:00:00,775 INFO L226 Difference]: Without dead ends: 6385 [2022-02-09 04:00:00,776 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1085 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=344, Invalid=3688, Unknown=0, NotChecked=0, Total=4032 [2022-02-09 04:00:00,776 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 437 mSDsluCounter, 2017 mSDsCounter, 0 mSdLazyCounter, 2638 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s 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, 0.9s IncrementalHoareTripleChecker+Time [2022-02-09 04:00:00,776 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [437 Valid, 1928 Invalid, 2708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 2638 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-09 04:00:00,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6385 states. [2022-02-09 04:00:00,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6385 to 3562. [2022-02-09 04:00:00,845 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) [2022-02-09 04:00:00,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3562 states to 3562 states and 11947 transitions. [2022-02-09 04:00:00,853 INFO L78 Accepts]: Start accepts. Automaton has 3562 states and 11947 transitions. Word has length 39 [2022-02-09 04:00:00,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:00:00,854 INFO L470 AbstractCegarLoop]: Abstraction has 3562 states and 11947 transitions. [2022-02-09 04:00:00,854 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) [2022-02-09 04:00:00,854 INFO L276 IsEmpty]: Start isEmpty. Operand 3562 states and 11947 transitions. [2022-02-09 04:00:00,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:00:00,859 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:00:00,859 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] [2022-02-09 04:00:00,860 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-02-09 04:00:00,860 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:00:00,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:00:00,860 INFO L85 PathProgramCache]: Analyzing trace with hash -544659796, now seen corresponding path program 50 times [2022-02-09 04:00:00,860 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:00:00,860 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828442725] [2022-02-09 04:00:00,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:00:00,860 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:00:00,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:00:01,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:00:01,077 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:00:01,077 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828442725] [2022-02-09 04:00:01,077 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828442725] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:00:01,077 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:00:01,077 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:00:01,077 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753959095] [2022-02-09 04:00:01,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:00:01,078 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:00:01,078 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:00:01,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:00:01,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:00:01,078 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) [2022-02-09 04:00:02,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:00:02,376 INFO L93 Difference]: Finished difference Result 5393 states and 18145 transitions. [2022-02-09 04:00:02,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-02-09 04:00:02,377 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 [2022-02-09 04:00:02,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:00:02,389 INFO L225 Difference]: With dead ends: 5393 [2022-02-09 04:00:02,389 INFO L226 Difference]: Without dead ends: 5338 [2022-02-09 04:00:02,389 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 [2022-02-09 04:00:02,389 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 [2022-02-09 04:00:02,390 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] [2022-02-09 04:00:02,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5338 states. [2022-02-09 04:00:02,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5338 to 3582. [2022-02-09 04:00:02,437 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) [2022-02-09 04:00:02,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3582 states to 3582 states and 12013 transitions. [2022-02-09 04:00:02,444 INFO L78 Accepts]: Start accepts. Automaton has 3582 states and 12013 transitions. Word has length 39 [2022-02-09 04:00:02,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:00:02,444 INFO L470 AbstractCegarLoop]: Abstraction has 3582 states and 12013 transitions. [2022-02-09 04:00:02,444 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) [2022-02-09 04:00:02,444 INFO L276 IsEmpty]: Start isEmpty. Operand 3582 states and 12013 transitions. [2022-02-09 04:00:02,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:00:02,449 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:00:02,449 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] [2022-02-09 04:00:02,449 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-02-09 04:00:02,449 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:00:02,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:00:02,450 INFO L85 PathProgramCache]: Analyzing trace with hash 627992426, now seen corresponding path program 51 times [2022-02-09 04:00:02,450 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:00:02,450 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84200237] [2022-02-09 04:00:02,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:00:02,450 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:00:02,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:00:02,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:00:02,676 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:00:02,676 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84200237] [2022-02-09 04:00:02,676 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84200237] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:00:02,676 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:00:02,676 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:00:02,676 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993209727] [2022-02-09 04:00:02,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:00:02,676 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:00:02,676 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:00:02,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:00:02,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:00:02,677 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) [2022-02-09 04:00:04,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:00:04,221 INFO L93 Difference]: Finished difference Result 6254 states and 21079 transitions. [2022-02-09 04:00:04,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-02-09 04:00:04,223 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 [2022-02-09 04:00:04,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:00:04,237 INFO L225 Difference]: With dead ends: 6254 [2022-02-09 04:00:04,237 INFO L226 Difference]: Without dead ends: 6194 [2022-02-09 04:00:04,237 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 792 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=288, Invalid=2904, Unknown=0, NotChecked=0, Total=3192 [2022-02-09 04:00:04,238 INFO L933 BasicCegarLoop]: 192 mSDtfsCounter, 381 mSDsluCounter, 1967 mSDsCounter, 0 mSdLazyCounter, 2391 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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, 0.8s IncrementalHoareTripleChecker+Time [2022-02-09 04:00:04,238 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [381 Valid, 1871 Invalid, 2443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 2391 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-09 04:00:04,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6194 states. [2022-02-09 04:00:04,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6194 to 3580. [2022-02-09 04:00:04,299 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) [2022-02-09 04:00:04,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3580 states to 3580 states and 12008 transitions. [2022-02-09 04:00:04,305 INFO L78 Accepts]: Start accepts. Automaton has 3580 states and 12008 transitions. Word has length 39 [2022-02-09 04:00:04,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:00:04,306 INFO L470 AbstractCegarLoop]: Abstraction has 3580 states and 12008 transitions. [2022-02-09 04:00:04,306 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) [2022-02-09 04:00:04,306 INFO L276 IsEmpty]: Start isEmpty. Operand 3580 states and 12008 transitions. [2022-02-09 04:00:04,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:00:04,310 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:00:04,310 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] [2022-02-09 04:00:04,311 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-02-09 04:00:04,311 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:00:04,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:00:04,311 INFO L85 PathProgramCache]: Analyzing trace with hash -1249411176, now seen corresponding path program 52 times [2022-02-09 04:00:04,311 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:00:04,311 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972390565] [2022-02-09 04:00:04,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:00:04,311 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:00:04,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:00:04,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:00:04,571 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:00:04,571 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972390565] [2022-02-09 04:00:04,571 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972390565] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:00:04,571 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:00:04,571 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:00:04,571 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979104263] [2022-02-09 04:00:04,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:00:04,572 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:00:04,572 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:00:04,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:00:04,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:00:04,572 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) [2022-02-09 04:00:05,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:00:05,664 INFO L93 Difference]: Finished difference Result 5284 states and 17876 transitions. [2022-02-09 04:00:05,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-09 04:00:05,665 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 [2022-02-09 04:00:05,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:00:05,675 INFO L225 Difference]: With dead ends: 5284 [2022-02-09 04:00:05,676 INFO L226 Difference]: Without dead ends: 5193 [2022-02-09 04:00:05,676 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 361 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=186, Invalid=1706, Unknown=0, NotChecked=0, Total=1892 [2022-02-09 04:00:05,676 INFO L933 BasicCegarLoop]: 159 mSDtfsCounter, 296 mSDsluCounter, 1640 mSDsCounter, 0 mSdLazyCounter, 2007 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.7s IncrementalHoareTripleChecker+Time [2022-02-09 04:00:05,676 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [296 Valid, 1535 Invalid, 2037 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 2007 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-09 04:00:05,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5193 states. [2022-02-09 04:00:05,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5193 to 3580. [2022-02-09 04:00:05,729 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) [2022-02-09 04:00:05,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3580 states to 3580 states and 12002 transitions. [2022-02-09 04:00:05,735 INFO L78 Accepts]: Start accepts. Automaton has 3580 states and 12002 transitions. Word has length 39 [2022-02-09 04:00:05,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:00:05,735 INFO L470 AbstractCegarLoop]: Abstraction has 3580 states and 12002 transitions. [2022-02-09 04:00:05,735 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) [2022-02-09 04:00:05,735 INFO L276 IsEmpty]: Start isEmpty. Operand 3580 states and 12002 transitions. [2022-02-09 04:00:05,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:00:05,740 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:00:05,740 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:00:05,740 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-02-09 04:00:05,740 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:00:05,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:00:05,741 INFO L85 PathProgramCache]: Analyzing trace with hash 1543073914, now seen corresponding path program 53 times [2022-02-09 04:00:05,741 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:00:05,741 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123245436] [2022-02-09 04:00:05,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:00:05,741 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:00:05,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:00:05,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:00:05,969 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:00:05,969 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123245436] [2022-02-09 04:00:05,969 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123245436] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:00:05,969 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:00:05,969 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:00:05,969 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951703614] [2022-02-09 04:00:05,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:00:05,970 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:00:05,970 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:00:05,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:00:05,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:00:05,970 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) [2022-02-09 04:00:07,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:00:07,380 INFO L93 Difference]: Finished difference Result 6116 states and 20752 transitions. [2022-02-09 04:00:07,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-02-09 04:00:07,380 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 [2022-02-09 04:00:07,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:00:07,417 INFO L225 Difference]: With dead ends: 6116 [2022-02-09 04:00:07,417 INFO L226 Difference]: Without dead ends: 6016 [2022-02-09 04:00:07,417 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 576 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=238, Invalid=2312, Unknown=0, NotChecked=0, Total=2550 [2022-02-09 04:00:07,417 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 [2022-02-09 04:00:07,417 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] [2022-02-09 04:00:07,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6016 states. [2022-02-09 04:00:07,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6016 to 3574. [2022-02-09 04:00:07,467 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) [2022-02-09 04:00:07,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3574 states to 3574 states and 11977 transitions. [2022-02-09 04:00:07,474 INFO L78 Accepts]: Start accepts. Automaton has 3574 states and 11977 transitions. Word has length 39 [2022-02-09 04:00:07,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:00:07,474 INFO L470 AbstractCegarLoop]: Abstraction has 3574 states and 11977 transitions. [2022-02-09 04:00:07,474 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) [2022-02-09 04:00:07,474 INFO L276 IsEmpty]: Start isEmpty. Operand 3574 states and 11977 transitions. [2022-02-09 04:00:07,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:00:07,479 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:00:07,479 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] [2022-02-09 04:00:07,479 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-02-09 04:00:07,479 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:00:07,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:00:07,480 INFO L85 PathProgramCache]: Analyzing trace with hash 1306448918, now seen corresponding path program 54 times [2022-02-09 04:00:07,480 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:00:07,480 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291235713] [2022-02-09 04:00:07,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:00:07,480 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:00:07,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:00:07,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:00:07,688 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:00:07,688 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291235713] [2022-02-09 04:00:07,688 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291235713] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:00:07,688 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:00:07,688 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-09 04:00:07,688 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085847448] [2022-02-09 04:00:07,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:00:07,688 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-02-09 04:00:07,688 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:00:07,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-02-09 04:00:07,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2022-02-09 04:00:07,689 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) [2022-02-09 04:00:08,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:00:08,443 INFO L93 Difference]: Finished difference Result 3841 states and 12759 transitions. [2022-02-09 04:00:08,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-02-09 04:00:08,444 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 [2022-02-09 04:00:08,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:00:08,451 INFO L225 Difference]: With dead ends: 3841 [2022-02-09 04:00:08,451 INFO L226 Difference]: Without dead ends: 3765 [2022-02-09 04:00:08,453 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 [2022-02-09 04:00:08,453 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, 0.4s IncrementalHoareTripleChecker+Time [2022-02-09 04:00:08,453 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 793 Invalid, 1344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1327 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-09 04:00:08,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3765 states. [2022-02-09 04:00:08,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3765 to 3606. [2022-02-09 04:00:08,493 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) [2022-02-09 04:00:08,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3606 states to 3606 states and 12065 transitions. [2022-02-09 04:00:08,500 INFO L78 Accepts]: Start accepts. Automaton has 3606 states and 12065 transitions. Word has length 39 [2022-02-09 04:00:08,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:00:08,500 INFO L470 AbstractCegarLoop]: Abstraction has 3606 states and 12065 transitions. [2022-02-09 04:00:08,500 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) [2022-02-09 04:00:08,500 INFO L276 IsEmpty]: Start isEmpty. Operand 3606 states and 12065 transitions. [2022-02-09 04:00:08,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:00:08,505 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:00:08,505 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] [2022-02-09 04:00:08,505 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-02-09 04:00:08,505 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:00:08,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:00:08,505 INFO L85 PathProgramCache]: Analyzing trace with hash 288395306, now seen corresponding path program 55 times [2022-02-09 04:00:08,505 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:00:08,505 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149616695] [2022-02-09 04:00:08,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:00:08,505 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:00:08,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:00:08,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:00:08,737 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:00:08,737 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149616695] [2022-02-09 04:00:08,737 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149616695] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:00:08,737 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:00:08,737 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:00:08,737 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735243040] [2022-02-09 04:00:08,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:00:08,737 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:00:08,737 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:00:08,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:00:08,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:00:08,738 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) [2022-02-09 04:00:09,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:00:09,580 INFO L93 Difference]: Finished difference Result 3823 states and 12705 transitions. [2022-02-09 04:00:09,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-09 04:00:09,580 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 [2022-02-09 04:00:09,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:00:09,588 INFO L225 Difference]: With dead ends: 3823 [2022-02-09 04:00:09,589 INFO L226 Difference]: Without dead ends: 3757 [2022-02-09 04:00:09,589 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 [2022-02-09 04:00:09,589 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 183 mSDsluCounter, 1063 mSDsCounter, 0 mSdLazyCounter, 1396 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.5s IncrementalHoareTripleChecker+Time [2022-02-09 04:00:09,589 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [183 Valid, 873 Invalid, 1422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1396 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-09 04:00:09,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3757 states. [2022-02-09 04:00:09,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3757 to 3598. [2022-02-09 04:00:09,653 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) [2022-02-09 04:00:09,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3598 states to 3598 states and 12041 transitions. [2022-02-09 04:00:09,660 INFO L78 Accepts]: Start accepts. Automaton has 3598 states and 12041 transitions. Word has length 39 [2022-02-09 04:00:09,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:00:09,660 INFO L470 AbstractCegarLoop]: Abstraction has 3598 states and 12041 transitions. [2022-02-09 04:00:09,660 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) [2022-02-09 04:00:09,660 INFO L276 IsEmpty]: Start isEmpty. Operand 3598 states and 12041 transitions. [2022-02-09 04:00:09,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:00:09,664 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:00:09,665 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] [2022-02-09 04:00:09,665 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-02-09 04:00:09,665 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:00:09,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:00:09,665 INFO L85 PathProgramCache]: Analyzing trace with hash 6129652, now seen corresponding path program 56 times [2022-02-09 04:00:09,665 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:00:09,665 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768093899] [2022-02-09 04:00:09,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:00:09,665 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:00:09,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:00:09,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:00:09,888 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:00:09,888 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768093899] [2022-02-09 04:00:09,888 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768093899] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:00:09,888 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:00:09,888 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:00:09,888 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899283163] [2022-02-09 04:00:09,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:00:09,888 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:00:09,889 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:00:09,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:00:09,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:00:09,889 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) [2022-02-09 04:00:10,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:00:10,700 INFO L93 Difference]: Finished difference Result 3832 states and 12726 transitions. [2022-02-09 04:00:10,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-09 04:00:10,700 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 [2022-02-09 04:00:10,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:00:10,708 INFO L225 Difference]: With dead ends: 3832 [2022-02-09 04:00:10,709 INFO L226 Difference]: Without dead ends: 3670 [2022-02-09 04:00:10,709 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 242 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=151, Invalid=1331, Unknown=0, NotChecked=0, Total=1482 [2022-02-09 04:00:10,709 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 175 mSDsluCounter, 1119 mSDsCounter, 0 mSdLazyCounter, 1395 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.5s IncrementalHoareTripleChecker+Time [2022-02-09 04:00:10,709 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 937 Invalid, 1419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1395 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-09 04:00:10,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3670 states. [2022-02-09 04:00:10,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3670 to 3530. [2022-02-09 04:00:10,756 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) [2022-02-09 04:00:10,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3530 states to 3530 states and 11853 transitions. [2022-02-09 04:00:10,763 INFO L78 Accepts]: Start accepts. Automaton has 3530 states and 11853 transitions. Word has length 39 [2022-02-09 04:00:10,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:00:10,764 INFO L470 AbstractCegarLoop]: Abstraction has 3530 states and 11853 transitions. [2022-02-09 04:00:10,764 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) [2022-02-09 04:00:10,764 INFO L276 IsEmpty]: Start isEmpty. Operand 3530 states and 11853 transitions. [2022-02-09 04:00:10,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:00:10,769 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:00:10,769 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] [2022-02-09 04:00:10,769 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-02-09 04:00:10,769 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:00:10,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:00:10,770 INFO L85 PathProgramCache]: Analyzing trace with hash 1964615912, now seen corresponding path program 57 times [2022-02-09 04:00:10,770 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:00:10,770 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020668120] [2022-02-09 04:00:10,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:00:10,770 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:00:10,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:00:11,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:00:11,003 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:00:11,003 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020668120] [2022-02-09 04:00:11,003 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020668120] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:00:11,003 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:00:11,003 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:00:11,003 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281427020] [2022-02-09 04:00:11,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:00:11,004 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:00:11,004 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:00:11,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:00:11,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:00:11,004 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) [2022-02-09 04:00:12,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:00:12,227 INFO L93 Difference]: Finished difference Result 3963 states and 13168 transitions. [2022-02-09 04:00:12,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-09 04:00:12,227 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:00:12,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:00:12,235 INFO L225 Difference]: With dead ends: 3963 [2022-02-09 04:00:12,235 INFO L226 Difference]: Without dead ends: 3896 [2022-02-09 04:00:12,236 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 451 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=222, Invalid=2034, Unknown=0, NotChecked=0, Total=2256 [2022-02-09 04:00:12,236 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 258 mSDsluCounter, 1158 mSDsCounter, 0 mSdLazyCounter, 1630 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 04:00:12,236 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [258 Valid, 959 Invalid, 1681 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 1630 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 04:00:12,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3896 states. [2022-02-09 04:00:12,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3896 to 3566. [2022-02-09 04:00:12,308 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) [2022-02-09 04:00:12,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3566 states to 3566 states and 11959 transitions. [2022-02-09 04:00:12,316 INFO L78 Accepts]: Start accepts. Automaton has 3566 states and 11959 transitions. Word has length 39 [2022-02-09 04:00:12,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:00:12,316 INFO L470 AbstractCegarLoop]: Abstraction has 3566 states and 11959 transitions. [2022-02-09 04:00:12,316 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) [2022-02-09 04:00:12,316 INFO L276 IsEmpty]: Start isEmpty. Operand 3566 states and 11959 transitions. [2022-02-09 04:00:12,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:00:12,322 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:00:12,322 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] [2022-02-09 04:00:12,322 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-02-09 04:00:12,322 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:00:12,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:00:12,322 INFO L85 PathProgramCache]: Analyzing trace with hash 244999942, now seen corresponding path program 58 times [2022-02-09 04:00:12,323 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:00:12,323 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947614084] [2022-02-09 04:00:12,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:00:12,323 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:00:12,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:00:12,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:00:12,590 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:00:12,590 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947614084] [2022-02-09 04:00:12,590 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947614084] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:00:12,590 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:00:12,590 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:00:12,590 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126023474] [2022-02-09 04:00:12,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:00:12,590 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:00:12,591 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:00:12,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:00:12,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:00:12,591 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) [2022-02-09 04:00:14,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:00:14,106 INFO L93 Difference]: Finished difference Result 4048 states and 13357 transitions. [2022-02-09 04:00:14,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-02-09 04:00:14,106 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 [2022-02-09 04:00:14,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:00:14,115 INFO L225 Difference]: With dead ends: 4048 [2022-02-09 04:00:14,115 INFO L226 Difference]: Without dead ends: 4005 [2022-02-09 04:00:14,116 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 714 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=283, Invalid=2797, Unknown=0, NotChecked=0, Total=3080 [2022-02-09 04:00:14,116 INFO L933 BasicCegarLoop]: 102 mSDtfsCounter, 314 mSDsluCounter, 1301 mSDsCounter, 0 mSdLazyCounter, 1887 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.7s IncrementalHoareTripleChecker+Time [2022-02-09 04:00:14,116 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [314 Valid, 1069 Invalid, 1942 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 1887 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-09 04:00:14,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4005 states. [2022-02-09 04:00:14,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4005 to 3572. [2022-02-09 04:00:14,158 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) [2022-02-09 04:00:14,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3572 states to 3572 states and 11972 transitions. [2022-02-09 04:00:14,164 INFO L78 Accepts]: Start accepts. Automaton has 3572 states and 11972 transitions. Word has length 39 [2022-02-09 04:00:14,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:00:14,165 INFO L470 AbstractCegarLoop]: Abstraction has 3572 states and 11972 transitions. [2022-02-09 04:00:14,165 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:00:14,165 INFO L276 IsEmpty]: Start isEmpty. Operand 3572 states and 11972 transitions. [2022-02-09 04:00:14,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:00:14,170 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:00:14,170 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:00:14,170 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-02-09 04:00:14,170 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:00:14,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:00:14,170 INFO L85 PathProgramCache]: Analyzing trace with hash -1535598360, now seen corresponding path program 59 times [2022-02-09 04:00:14,170 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:00:14,170 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811991379] [2022-02-09 04:00:14,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:00:14,171 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:00:14,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:00:14,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:00:14,438 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:00:14,438 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811991379] [2022-02-09 04:00:14,438 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811991379] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:00:14,438 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:00:14,438 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:00:14,438 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767987606] [2022-02-09 04:00:14,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:00:14,438 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:00:14,438 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:00:14,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:00:14,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:00:14,439 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) [2022-02-09 04:00:15,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:00:15,897 INFO L93 Difference]: Finished difference Result 4003 states and 13253 transitions. [2022-02-09 04:00:15,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-02-09 04:00:15,897 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:00:15,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:00:15,905 INFO L225 Difference]: With dead ends: 4003 [2022-02-09 04:00:15,905 INFO L226 Difference]: Without dead ends: 3939 [2022-02-09 04:00:15,906 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 675 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=274, Invalid=2696, Unknown=0, NotChecked=0, Total=2970 [2022-02-09 04:00:15,906 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 [2022-02-09 04:00:15,906 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] [2022-02-09 04:00:15,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3939 states. [2022-02-09 04:00:15,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3939 to 3554. [2022-02-09 04:00:15,950 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) [2022-02-09 04:00:15,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3554 states to 3554 states and 11929 transitions. [2022-02-09 04:00:15,958 INFO L78 Accepts]: Start accepts. Automaton has 3554 states and 11929 transitions. Word has length 39 [2022-02-09 04:00:15,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:00:15,958 INFO L470 AbstractCegarLoop]: Abstraction has 3554 states and 11929 transitions. [2022-02-09 04:00:15,958 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:00:15,958 INFO L276 IsEmpty]: Start isEmpty. Operand 3554 states and 11929 transitions. [2022-02-09 04:00:15,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:00:15,964 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:00:15,964 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] [2022-02-09 04:00:15,964 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-02-09 04:00:15,964 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:00:15,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:00:15,964 INFO L85 PathProgramCache]: Analyzing trace with hash -915163960, now seen corresponding path program 60 times [2022-02-09 04:00:15,965 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:00:15,965 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39159092] [2022-02-09 04:00:15,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:00:15,965 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:00:15,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:00:16,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:00:16,193 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:00:16,193 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39159092] [2022-02-09 04:00:16,193 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39159092] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:00:16,193 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:00:16,193 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:00:16,193 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871622527] [2022-02-09 04:00:16,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:00:16,194 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:00:16,194 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:00:16,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:00:16,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:00:16,194 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) [2022-02-09 04:00:17,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:00:17,258 INFO L93 Difference]: Finished difference Result 3963 states and 13162 transitions. [2022-02-09 04:00:17,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-02-09 04:00:17,259 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 [2022-02-09 04:00:17,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:00:17,268 INFO L225 Difference]: With dead ends: 3963 [2022-02-09 04:00:17,268 INFO L226 Difference]: Without dead ends: 3896 [2022-02-09 04:00:17,269 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 450 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=220, Invalid=2036, Unknown=0, NotChecked=0, Total=2256 [2022-02-09 04:00:17,269 INFO L933 BasicCegarLoop]: 101 mSDtfsCounter, 243 mSDsluCounter, 1202 mSDsCounter, 0 mSdLazyCounter, 1674 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 04:00:17,269 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [243 Valid, 994 Invalid, 1721 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 1674 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 04:00:17,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3896 states. [2022-02-09 04:00:17,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3896 to 3562. [2022-02-09 04:00:17,322 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) [2022-02-09 04:00:17,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3562 states to 3562 states and 11945 transitions. [2022-02-09 04:00:17,330 INFO L78 Accepts]: Start accepts. Automaton has 3562 states and 11945 transitions. Word has length 39 [2022-02-09 04:00:17,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:00:17,330 INFO L470 AbstractCegarLoop]: Abstraction has 3562 states and 11945 transitions. [2022-02-09 04:00:17,330 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) [2022-02-09 04:00:17,330 INFO L276 IsEmpty]: Start isEmpty. Operand 3562 states and 11945 transitions. [2022-02-09 04:00:17,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:00:17,337 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:00:17,337 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] [2022-02-09 04:00:17,337 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-02-09 04:00:17,337 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:00:17,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:00:17,337 INFO L85 PathProgramCache]: Analyzing trace with hash -1045758808, now seen corresponding path program 61 times [2022-02-09 04:00:17,337 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:00:17,337 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016667145] [2022-02-09 04:00:17,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:00:17,338 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:00:17,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:00:17,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:00:17,606 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:00:17,606 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016667145] [2022-02-09 04:00:17,606 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016667145] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:00:17,606 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:00:17,606 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:00:17,606 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359360753] [2022-02-09 04:00:17,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:00:17,606 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:00:17,607 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:00:17,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:00:17,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:00:17,607 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) [2022-02-09 04:00:18,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:00:18,775 INFO L93 Difference]: Finished difference Result 3951 states and 13122 transitions. [2022-02-09 04:00:18,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-02-09 04:00:18,775 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 [2022-02-09 04:00:18,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:00:18,784 INFO L225 Difference]: With dead ends: 3951 [2022-02-09 04:00:18,785 INFO L226 Difference]: Without dead ends: 3888 [2022-02-09 04:00:18,785 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 481 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=227, Invalid=2125, Unknown=0, NotChecked=0, Total=2352 [2022-02-09 04:00:18,785 INFO L933 BasicCegarLoop]: 102 mSDtfsCounter, 241 mSDsluCounter, 1227 mSDsCounter, 0 mSdLazyCounter, 1687 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 04:00:18,785 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [241 Valid, 1021 Invalid, 1735 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 1687 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 04:00:18,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3888 states. [2022-02-09 04:00:18,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3888 to 3554. [2022-02-09 04:00:18,837 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) [2022-02-09 04:00:18,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3554 states to 3554 states and 11925 transitions. [2022-02-09 04:00:18,845 INFO L78 Accepts]: Start accepts. Automaton has 3554 states and 11925 transitions. Word has length 39 [2022-02-09 04:00:18,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:00:18,845 INFO L470 AbstractCegarLoop]: Abstraction has 3554 states and 11925 transitions. [2022-02-09 04:00:18,845 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) [2022-02-09 04:00:18,845 INFO L276 IsEmpty]: Start isEmpty. Operand 3554 states and 11925 transitions. [2022-02-09 04:00:18,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:00:18,851 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:00:18,851 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:00:18,851 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-02-09 04:00:18,851 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:00:18,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:00:18,852 INFO L85 PathProgramCache]: Analyzing trace with hash -1181437400, now seen corresponding path program 62 times [2022-02-09 04:00:18,852 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:00:18,852 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411996907] [2022-02-09 04:00:18,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:00:18,852 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:00:18,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:00:19,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:00:19,091 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:00:19,091 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411996907] [2022-02-09 04:00:19,091 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411996907] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:00:19,091 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:00:19,091 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:00:19,091 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475651379] [2022-02-09 04:00:19,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:00:19,091 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:00:19,091 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:00:19,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:00:19,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:00:19,092 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) [2022-02-09 04:00:20,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:00:20,600 INFO L93 Difference]: Finished difference Result 4114 states and 13511 transitions. [2022-02-09 04:00:20,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-02-09 04:00:20,600 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 [2022-02-09 04:00:20,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:00:20,609 INFO L225 Difference]: With dead ends: 4114 [2022-02-09 04:00:20,610 INFO L226 Difference]: Without dead ends: 4071 [2022-02-09 04:00:20,610 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 789 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=300, Invalid=3006, Unknown=0, NotChecked=0, Total=3306 [2022-02-09 04:00:20,615 INFO L933 BasicCegarLoop]: 103 mSDtfsCounter, 312 mSDsluCounter, 1327 mSDsCounter, 0 mSdLazyCounter, 1915 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.7s IncrementalHoareTripleChecker+Time [2022-02-09 04:00:20,615 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [312 Valid, 1084 Invalid, 1973 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 1915 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-09 04:00:20,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4071 states. [2022-02-09 04:00:20,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4071 to 3562. [2022-02-09 04:00:20,669 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) [2022-02-09 04:00:20,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3562 states to 3562 states and 11945 transitions. [2022-02-09 04:00:20,677 INFO L78 Accepts]: Start accepts. Automaton has 3562 states and 11945 transitions. Word has length 39 [2022-02-09 04:00:20,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:00:20,677 INFO L470 AbstractCegarLoop]: Abstraction has 3562 states and 11945 transitions. [2022-02-09 04:00:20,677 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:00:20,678 INFO L276 IsEmpty]: Start isEmpty. Operand 3562 states and 11945 transitions. [2022-02-09 04:00:20,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:00:20,684 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:00:20,684 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:00:20,684 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-02-09 04:00:20,684 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:00:20,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:00:20,684 INFO L85 PathProgramCache]: Analyzing trace with hash 1332931594, now seen corresponding path program 63 times [2022-02-09 04:00:20,684 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:00:20,684 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9444123] [2022-02-09 04:00:20,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:00:20,685 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:00:20,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:00:21,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:00:21,096 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:00:21,096 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9444123] [2022-02-09 04:00:21,096 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9444123] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:00:21,096 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:00:21,096 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:00:21,096 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439062150] [2022-02-09 04:00:21,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:00:21,096 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:00:21,096 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:00:21,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:00:21,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:00:21,111 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) [2022-02-09 04:00:22,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:00:22,526 INFO L93 Difference]: Finished difference Result 4102 states and 13473 transitions. [2022-02-09 04:00:22,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-02-09 04:00:22,526 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:00:22,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:00:22,534 INFO L225 Difference]: With dead ends: 4102 [2022-02-09 04:00:22,534 INFO L226 Difference]: Without dead ends: 4050 [2022-02-09 04:00:22,535 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 749 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=292, Invalid=2900, Unknown=0, NotChecked=0, Total=3192 [2022-02-09 04:00:22,535 INFO L933 BasicCegarLoop]: 101 mSDtfsCounter, 307 mSDsluCounter, 1299 mSDsCounter, 0 mSdLazyCounter, 1885 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.7s IncrementalHoareTripleChecker+Time [2022-02-09 04:00:22,535 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [307 Valid, 1067 Invalid, 1938 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 1885 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-09 04:00:22,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4050 states. [2022-02-09 04:00:22,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4050 to 3554. [2022-02-09 04:00:22,575 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) [2022-02-09 04:00:22,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3554 states to 3554 states and 11925 transitions. [2022-02-09 04:00:22,581 INFO L78 Accepts]: Start accepts. Automaton has 3554 states and 11925 transitions. Word has length 39 [2022-02-09 04:00:22,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:00:22,581 INFO L470 AbstractCegarLoop]: Abstraction has 3554 states and 11925 transitions. [2022-02-09 04:00:22,581 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:00:22,581 INFO L276 IsEmpty]: Start isEmpty. Operand 3554 states and 11925 transitions. [2022-02-09 04:00:22,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:00:22,586 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:00:22,586 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:00:22,586 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-02-09 04:00:22,586 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:00:22,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:00:22,586 INFO L85 PathProgramCache]: Analyzing trace with hash -262953830, now seen corresponding path program 64 times [2022-02-09 04:00:22,586 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:00:22,586 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559116039] [2022-02-09 04:00:22,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:00:22,587 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:00:22,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:00:22,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:00:22,821 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:00:22,821 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559116039] [2022-02-09 04:00:22,821 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559116039] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:00:22,821 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:00:22,821 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:00:22,821 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10105611] [2022-02-09 04:00:22,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:00:22,821 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:00:22,821 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:00:22,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:00:22,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:00:22,822 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) [2022-02-09 04:00:24,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:00:24,074 INFO L93 Difference]: Finished difference Result 4079 states and 13396 transitions. [2022-02-09 04:00:24,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-02-09 04:00:24,075 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:00:24,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:00:24,083 INFO L225 Difference]: With dead ends: 4079 [2022-02-09 04:00:24,083 INFO L226 Difference]: Without dead ends: 4024 [2022-02-09 04:00:24,084 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 544 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=244, Invalid=2306, Unknown=0, NotChecked=0, Total=2550 [2022-02-09 04:00:24,084 INFO L933 BasicCegarLoop]: 101 mSDtfsCounter, 269 mSDsluCounter, 1274 mSDsCounter, 0 mSdLazyCounter, 1738 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.7s IncrementalHoareTripleChecker+Time [2022-02-09 04:00:24,084 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [269 Valid, 1031 Invalid, 1789 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 1738 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-09 04:00:24,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4024 states. [2022-02-09 04:00:24,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4024 to 3556. [2022-02-09 04:00:24,147 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) [2022-02-09 04:00:24,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3556 states to 3556 states and 11928 transitions. [2022-02-09 04:00:24,154 INFO L78 Accepts]: Start accepts. Automaton has 3556 states and 11928 transitions. Word has length 39 [2022-02-09 04:00:24,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:00:24,154 INFO L470 AbstractCegarLoop]: Abstraction has 3556 states and 11928 transitions. [2022-02-09 04:00:24,154 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:00:24,154 INFO L276 IsEmpty]: Start isEmpty. Operand 3556 states and 11928 transitions. [2022-02-09 04:00:24,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:00:24,159 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:00:24,159 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] [2022-02-09 04:00:24,160 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-02-09 04:00:24,160 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:00:24,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:00:24,160 INFO L85 PathProgramCache]: Analyzing trace with hash 909698392, now seen corresponding path program 65 times [2022-02-09 04:00:24,160 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:00:24,160 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505603964] [2022-02-09 04:00:24,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:00:24,160 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:00:24,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:00:24,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:00:24,401 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:00:24,402 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505603964] [2022-02-09 04:00:24,402 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505603964] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:00:24,402 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:00:24,402 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:00:24,402 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308995370] [2022-02-09 04:00:24,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:00:24,402 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:00:24,402 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:00:24,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:00:24,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:00:24,403 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) [2022-02-09 04:00:25,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:00:25,562 INFO L93 Difference]: Finished difference Result 4014 states and 13244 transitions. [2022-02-09 04:00:25,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-02-09 04:00:25,562 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:00:25,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:00:25,570 INFO L225 Difference]: With dead ends: 4014 [2022-02-09 04:00:25,571 INFO L226 Difference]: Without dead ends: 3968 [2022-02-09 04:00:25,571 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 447 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=219, Invalid=2037, Unknown=0, NotChecked=0, Total=2256 [2022-02-09 04:00:25,571 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 254 mSDsluCounter, 1274 mSDsCounter, 0 mSdLazyCounter, 1700 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 04:00:25,572 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [254 Valid, 1029 Invalid, 1739 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1700 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 04:00:25,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3968 states. [2022-02-09 04:00:25,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3968 to 3560. [2022-02-09 04:00:25,626 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) [2022-02-09 04:00:25,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3560 states to 3560 states and 11936 transitions. [2022-02-09 04:00:25,633 INFO L78 Accepts]: Start accepts. Automaton has 3560 states and 11936 transitions. Word has length 39 [2022-02-09 04:00:25,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:00:25,633 INFO L470 AbstractCegarLoop]: Abstraction has 3560 states and 11936 transitions. [2022-02-09 04:00:25,633 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:00:25,633 INFO L276 IsEmpty]: Start isEmpty. Operand 3560 states and 11936 transitions. [2022-02-09 04:00:25,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:00:25,639 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:00:25,639 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] [2022-02-09 04:00:25,639 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-02-09 04:00:25,639 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:00:25,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:00:25,639 INFO L85 PathProgramCache]: Analyzing trace with hash 662232230, now seen corresponding path program 66 times [2022-02-09 04:00:25,639 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:00:25,639 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939104869] [2022-02-09 04:00:25,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:00:25,640 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:00:25,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:00:25,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:00:25,866 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:00:25,866 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939104869] [2022-02-09 04:00:25,866 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939104869] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:00:25,866 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:00:25,866 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:00:25,866 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897254091] [2022-02-09 04:00:25,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:00:25,866 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:00:25,866 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:00:25,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:00:25,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:00:25,867 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) [2022-02-09 04:00:27,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:00:27,149 INFO L93 Difference]: Finished difference Result 3980 states and 13174 transitions. [2022-02-09 04:00:27,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-02-09 04:00:27,150 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:00:27,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:00:27,157 INFO L225 Difference]: With dead ends: 3980 [2022-02-09 04:00:27,158 INFO L226 Difference]: Without dead ends: 3931 [2022-02-09 04:00:27,158 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 575 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=250, Invalid=2402, Unknown=0, NotChecked=0, Total=2652 [2022-02-09 04:00:27,158 INFO L933 BasicCegarLoop]: 101 mSDtfsCounter, 262 mSDsluCounter, 1259 mSDsCounter, 0 mSdLazyCounter, 1685 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 04:00:27,158 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [262 Valid, 1052 Invalid, 1735 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 1685 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 04:00:27,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3931 states. [2022-02-09 04:00:27,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3931 to 3550. [2022-02-09 04:00:27,200 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) [2022-02-09 04:00:27,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3550 states to 3550 states and 11915 transitions. [2022-02-09 04:00:27,208 INFO L78 Accepts]: Start accepts. Automaton has 3550 states and 11915 transitions. Word has length 39 [2022-02-09 04:00:27,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:00:27,208 INFO L470 AbstractCegarLoop]: Abstraction has 3550 states and 11915 transitions. [2022-02-09 04:00:27,209 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) [2022-02-09 04:00:27,209 INFO L276 IsEmpty]: Start isEmpty. Operand 3550 states and 11915 transitions. [2022-02-09 04:00:27,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:00:27,214 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:00:27,214 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] [2022-02-09 04:00:27,214 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-02-09 04:00:27,215 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:00:27,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:00:27,215 INFO L85 PathProgramCache]: Analyzing trace with hash -2093859544, now seen corresponding path program 67 times [2022-02-09 04:00:27,215 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:00:27,215 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454450676] [2022-02-09 04:00:27,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:00:27,215 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:00:27,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:00:27,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:00:27,452 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:00:27,452 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454450676] [2022-02-09 04:00:27,452 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454450676] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:00:27,452 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:00:27,452 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:00:27,452 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590317053] [2022-02-09 04:00:27,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:00:27,453 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:00:27,453 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:00:27,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:00:27,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:00:27,453 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) [2022-02-09 04:00:28,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:00:28,476 INFO L93 Difference]: Finished difference Result 4021 states and 13349 transitions. [2022-02-09 04:00:28,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-02-09 04:00:28,476 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:00:28,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:00:28,486 INFO L225 Difference]: With dead ends: 4021 [2022-02-09 04:00:28,486 INFO L226 Difference]: Without dead ends: 3954 [2022-02-09 04:00:28,486 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 337 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=184, Invalid=1708, Unknown=0, NotChecked=0, Total=1892 [2022-02-09 04:00:28,487 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 [2022-02-09 04:00:28,487 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] [2022-02-09 04:00:28,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3954 states. [2022-02-09 04:00:28,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3954 to 3590. [2022-02-09 04:00:28,543 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) [2022-02-09 04:00:28,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3590 states to 3590 states and 12023 transitions. [2022-02-09 04:00:28,552 INFO L78 Accepts]: Start accepts. Automaton has 3590 states and 12023 transitions. Word has length 39 [2022-02-09 04:00:28,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:00:28,552 INFO L470 AbstractCegarLoop]: Abstraction has 3590 states and 12023 transitions. [2022-02-09 04:00:28,552 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:00:28,552 INFO L276 IsEmpty]: Start isEmpty. Operand 3590 states and 12023 transitions. [2022-02-09 04:00:28,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:00:28,558 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:00:28,558 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] [2022-02-09 04:00:28,558 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-02-09 04:00:28,558 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:00:28,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:00:28,558 INFO L85 PathProgramCache]: Analyzing trace with hash 2070512904, now seen corresponding path program 68 times [2022-02-09 04:00:28,559 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:00:28,559 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220011281] [2022-02-09 04:00:28,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:00:28,559 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:00:28,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:00:28,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:00:28,800 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:00:28,800 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220011281] [2022-02-09 04:00:28,801 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220011281] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:00:28,801 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:00:28,801 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:00:28,801 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069766261] [2022-02-09 04:00:28,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:00:28,801 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:00:28,801 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:00:28,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:00:28,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:00:28,801 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) [2022-02-09 04:00:29,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:00:29,872 INFO L93 Difference]: Finished difference Result 4009 states and 13309 transitions. [2022-02-09 04:00:29,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-09 04:00:29,872 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 [2022-02-09 04:00:29,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:00:29,881 INFO L225 Difference]: With dead ends: 4009 [2022-02-09 04:00:29,881 INFO L226 Difference]: Without dead ends: 3946 [2022-02-09 04:00:29,881 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 336 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=186, Invalid=1706, Unknown=0, NotChecked=0, Total=1892 [2022-02-09 04:00:29,881 INFO L933 BasicCegarLoop]: 111 mSDtfsCounter, 231 mSDsluCounter, 1247 mSDsCounter, 0 mSdLazyCounter, 1785 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 04:00:29,882 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [231 Valid, 1061 Invalid, 1821 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1785 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 04:00:29,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3946 states. [2022-02-09 04:00:29,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3946 to 3582. [2022-02-09 04:00:29,931 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) [2022-02-09 04:00:29,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3582 states to 3582 states and 11999 transitions. [2022-02-09 04:00:29,939 INFO L78 Accepts]: Start accepts. Automaton has 3582 states and 11999 transitions. Word has length 39 [2022-02-09 04:00:29,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:00:29,940 INFO L470 AbstractCegarLoop]: Abstraction has 3582 states and 11999 transitions. [2022-02-09 04:00:29,940 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) [2022-02-09 04:00:29,940 INFO L276 IsEmpty]: Start isEmpty. Operand 3582 states and 11999 transitions. [2022-02-09 04:00:29,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:00:29,946 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:00:29,946 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:00:29,946 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-02-09 04:00:29,946 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:00:29,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:00:29,946 INFO L85 PathProgramCache]: Analyzing trace with hash 1540612456, now seen corresponding path program 69 times [2022-02-09 04:00:29,946 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:00:29,946 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135766729] [2022-02-09 04:00:29,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:00:29,946 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:00:29,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:00:30,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:00:30,184 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:00:30,185 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135766729] [2022-02-09 04:00:30,185 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135766729] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:00:30,185 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:00:30,185 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:00:30,185 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447705758] [2022-02-09 04:00:30,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:00:30,185 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:00:30,185 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:00:30,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:00:30,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:00:30,185 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) [2022-02-09 04:00:31,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:00:31,236 INFO L93 Difference]: Finished difference Result 4021 states and 13337 transitions. [2022-02-09 04:00:31,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-02-09 04:00:31,236 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:00:31,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:00:31,245 INFO L225 Difference]: With dead ends: 4021 [2022-02-09 04:00:31,245 INFO L226 Difference]: Without dead ends: 3898 [2022-02-09 04:00:31,245 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 335 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=182, Invalid=1710, Unknown=0, NotChecked=0, Total=1892 [2022-02-09 04:00:31,246 INFO L933 BasicCegarLoop]: 116 mSDtfsCounter, 229 mSDsluCounter, 1310 mSDsCounter, 0 mSdLazyCounter, 1807 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 04:00:31,246 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [229 Valid, 1130 Invalid, 1839 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1807 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 04:00:31,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3898 states. [2022-02-09 04:00:31,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3898 to 3550. [2022-02-09 04:00:31,294 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) [2022-02-09 04:00:31,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3550 states to 3550 states and 11899 transitions. [2022-02-09 04:00:31,302 INFO L78 Accepts]: Start accepts. Automaton has 3550 states and 11899 transitions. Word has length 39 [2022-02-09 04:00:31,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:00:31,302 INFO L470 AbstractCegarLoop]: Abstraction has 3550 states and 11899 transitions. [2022-02-09 04:00:31,302 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:00:31,302 INFO L276 IsEmpty]: Start isEmpty. Operand 3550 states and 11899 transitions. [2022-02-09 04:00:31,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:00:31,308 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:00:31,308 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:00:31,308 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-02-09 04:00:31,308 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:00:31,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:00:31,308 INFO L85 PathProgramCache]: Analyzing trace with hash 822201286, now seen corresponding path program 70 times [2022-02-09 04:00:31,308 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:00:31,309 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986467174] [2022-02-09 04:00:31,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:00:31,309 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:00:31,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:00:31,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:00:31,538 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:00:31,538 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986467174] [2022-02-09 04:00:31,538 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986467174] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:00:31,538 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:00:31,538 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:00:31,538 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141266587] [2022-02-09 04:00:31,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:00:31,538 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:00:31,538 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:00:31,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:00:31,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:00:31,539 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) [2022-02-09 04:00:33,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:00:33,380 INFO L93 Difference]: Finished difference Result 5827 states and 19628 transitions. [2022-02-09 04:00:33,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-02-09 04:00:33,381 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 [2022-02-09 04:00:33,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:00:33,395 INFO L225 Difference]: With dead ends: 5827 [2022-02-09 04:00:33,395 INFO L226 Difference]: Without dead ends: 5741 [2022-02-09 04:00:33,395 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1087 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=346, Invalid=3814, Unknown=0, NotChecked=0, Total=4160 [2022-02-09 04:00:33,396 INFO L933 BasicCegarLoop]: 177 mSDtfsCounter, 488 mSDsluCounter, 2068 mSDsCounter, 0 mSdLazyCounter, 2690 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s 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, 0.9s IncrementalHoareTripleChecker+Time [2022-02-09 04:00:33,396 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [488 Valid, 1915 Invalid, 2772 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 2690 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-09 04:00:33,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5741 states. [2022-02-09 04:00:33,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5741 to 3628. [2022-02-09 04:00:33,467 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) [2022-02-09 04:00:33,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3628 states to 3628 states and 12148 transitions. [2022-02-09 04:00:33,476 INFO L78 Accepts]: Start accepts. Automaton has 3628 states and 12148 transitions. Word has length 39 [2022-02-09 04:00:33,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:00:33,476 INFO L470 AbstractCegarLoop]: Abstraction has 3628 states and 12148 transitions. [2022-02-09 04:00:33,476 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:00:33,477 INFO L276 IsEmpty]: Start isEmpty. Operand 3628 states and 12148 transitions. [2022-02-09 04:00:33,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:00:33,483 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:00:33,483 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:00:33,483 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-02-09 04:00:33,483 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:00:33,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:00:33,483 INFO L85 PathProgramCache]: Analyzing trace with hash -958397016, now seen corresponding path program 71 times [2022-02-09 04:00:33,483 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:00:33,483 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535174951] [2022-02-09 04:00:33,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:00:33,483 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:00:33,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:00:33,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:00:33,719 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:00:33,720 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535174951] [2022-02-09 04:00:33,720 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535174951] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:00:33,720 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:00:33,720 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:00:33,720 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123118762] [2022-02-09 04:00:33,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:00:33,720 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:00:33,720 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:00:33,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:00:33,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:00:33,721 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) [2022-02-09 04:00:35,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:00:35,826 INFO L93 Difference]: Finished difference Result 6643 states and 22454 transitions. [2022-02-09 04:00:35,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-02-09 04:00:35,826 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 [2022-02-09 04:00:35,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:00:35,841 INFO L225 Difference]: With dead ends: 6643 [2022-02-09 04:00:35,841 INFO L226 Difference]: Without dead ends: 6539 [2022-02-09 04:00:35,842 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1382 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=389, Invalid=4581, Unknown=0, NotChecked=0, Total=4970 [2022-02-09 04:00:35,842 INFO L933 BasicCegarLoop]: 211 mSDtfsCounter, 517 mSDsluCounter, 2388 mSDsCounter, 0 mSdLazyCounter, 3026 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s 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, 1.0s IncrementalHoareTripleChecker+Time [2022-02-09 04:00:35,842 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [517 Valid, 2271 Invalid, 3114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 3026 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-02-09 04:00:35,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6539 states. [2022-02-09 04:00:35,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6539 to 3598. [2022-02-09 04:00:35,907 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) [2022-02-09 04:00:35,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3598 states to 3598 states and 12047 transitions. [2022-02-09 04:00:35,916 INFO L78 Accepts]: Start accepts. Automaton has 3598 states and 12047 transitions. Word has length 39 [2022-02-09 04:00:35,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:00:35,916 INFO L470 AbstractCegarLoop]: Abstraction has 3598 states and 12047 transitions. [2022-02-09 04:00:35,916 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:00:35,916 INFO L276 IsEmpty]: Start isEmpty. Operand 3598 states and 12047 transitions. [2022-02-09 04:00:35,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:00:35,922 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:00:35,922 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] [2022-02-09 04:00:35,922 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-02-09 04:00:35,922 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:00:35,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:00:35,923 INFO L85 PathProgramCache]: Analyzing trace with hash 1740684856, now seen corresponding path program 72 times [2022-02-09 04:00:35,923 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:00:35,923 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888085554] [2022-02-09 04:00:35,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:00:35,923 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:00:35,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:00:36,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:00:36,183 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:00:36,183 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888085554] [2022-02-09 04:00:36,184 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888085554] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:00:36,184 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:00:36,184 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:00:36,184 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759588118] [2022-02-09 04:00:36,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:00:36,197 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:00:36,197 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:00:36,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:00:36,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:00:36,198 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) [2022-02-09 04:00:37,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:00:37,746 INFO L93 Difference]: Finished difference Result 5563 states and 18662 transitions. [2022-02-09 04:00:37,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-02-09 04:00:37,747 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 [2022-02-09 04:00:37,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:00:37,759 INFO L225 Difference]: With dead ends: 5563 [2022-02-09 04:00:37,759 INFO L226 Difference]: Without dead ends: 5508 [2022-02-09 04:00:37,760 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 [2022-02-09 04:00:37,760 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 [2022-02-09 04:00:37,760 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] [2022-02-09 04:00:37,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5508 states. [2022-02-09 04:00:37,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5508 to 3626. [2022-02-09 04:00:37,823 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) [2022-02-09 04:00:37,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3626 states to 3626 states and 12137 transitions. [2022-02-09 04:00:37,832 INFO L78 Accepts]: Start accepts. Automaton has 3626 states and 12137 transitions. Word has length 39 [2022-02-09 04:00:37,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:00:37,832 INFO L470 AbstractCegarLoop]: Abstraction has 3626 states and 12137 transitions. [2022-02-09 04:00:37,832 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:00:37,832 INFO L276 IsEmpty]: Start isEmpty. Operand 3626 states and 12137 transitions. [2022-02-09 04:00:37,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:00:37,838 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:00:37,838 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] [2022-02-09 04:00:37,838 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-02-09 04:00:37,838 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:00:37,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:00:37,839 INFO L85 PathProgramCache]: Analyzing trace with hash -1381630218, now seen corresponding path program 73 times [2022-02-09 04:00:37,839 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:00:37,839 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008857787] [2022-02-09 04:00:37,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:00:37,839 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:00:37,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:00:38,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:00:38,086 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:00:38,086 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008857787] [2022-02-09 04:00:38,086 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008857787] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:00:38,086 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:00:38,086 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:00:38,086 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291959506] [2022-02-09 04:00:38,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:00:38,086 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:00:38,086 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:00:38,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:00:38,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:00:38,087 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) [2022-02-09 04:00:39,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:00:39,885 INFO L93 Difference]: Finished difference Result 6424 states and 21596 transitions. [2022-02-09 04:00:39,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-02-09 04:00:39,885 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:00:39,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:00:39,901 INFO L225 Difference]: With dead ends: 6424 [2022-02-09 04:00:39,901 INFO L226 Difference]: Without dead ends: 6364 [2022-02-09 04:00:39,902 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 [2022-02-09 04:00:39,902 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 [2022-02-09 04:00:39,902 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] [2022-02-09 04:00:39,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6364 states. [2022-02-09 04:00:39,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6364 to 3624. [2022-02-09 04:00:39,968 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) [2022-02-09 04:00:39,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3624 states to 3624 states and 12132 transitions. [2022-02-09 04:00:39,976 INFO L78 Accepts]: Start accepts. Automaton has 3624 states and 12132 transitions. Word has length 39 [2022-02-09 04:00:39,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:00:39,976 INFO L470 AbstractCegarLoop]: Abstraction has 3624 states and 12132 transitions. [2022-02-09 04:00:39,976 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:00:39,976 INFO L276 IsEmpty]: Start isEmpty. Operand 3624 states and 12132 transitions. [2022-02-09 04:00:39,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:00:39,982 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:00:39,982 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:00:39,982 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-02-09 04:00:39,982 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:00:39,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:00:39,982 INFO L85 PathProgramCache]: Analyzing trace with hash 1035933476, now seen corresponding path program 74 times [2022-02-09 04:00:39,982 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:00:39,982 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468563321] [2022-02-09 04:00:39,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:00:39,983 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:00:39,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:00:40,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:00:40,217 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:00:40,217 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468563321] [2022-02-09 04:00:40,217 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468563321] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:00:40,217 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:00:40,217 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:00:40,217 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138603062] [2022-02-09 04:00:40,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:00:40,218 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:00:40,218 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:00:40,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:00:40,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:00:40,218 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) [2022-02-09 04:00:41,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:00:41,623 INFO L93 Difference]: Finished difference Result 5514 states and 18559 transitions. [2022-02-09 04:00:41,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-02-09 04:00:41,623 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 [2022-02-09 04:00:41,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:00:41,647 INFO L225 Difference]: With dead ends: 5514 [2022-02-09 04:00:41,647 INFO L226 Difference]: Without dead ends: 5423 [2022-02-09 04:00:41,648 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 [2022-02-09 04:00:41,648 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 [2022-02-09 04:00:41,648 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] [2022-02-09 04:00:41,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5423 states. [2022-02-09 04:00:41,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5423 to 3624. [2022-02-09 04:00:41,716 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) [2022-02-09 04:00:41,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3624 states to 3624 states and 12126 transitions. [2022-02-09 04:00:41,725 INFO L78 Accepts]: Start accepts. Automaton has 3624 states and 12126 transitions. Word has length 39 [2022-02-09 04:00:41,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:00:41,725 INFO L470 AbstractCegarLoop]: Abstraction has 3624 states and 12126 transitions. [2022-02-09 04:00:41,725 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) [2022-02-09 04:00:41,725 INFO L276 IsEmpty]: Start isEmpty. Operand 3624 states and 12126 transitions. [2022-02-09 04:00:41,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:00:41,730 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:00:41,730 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:00:41,731 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-02-09 04:00:41,731 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:00:41,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:00:41,731 INFO L85 PathProgramCache]: Analyzing trace with hash -466548730, now seen corresponding path program 75 times [2022-02-09 04:00:41,731 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:00:41,731 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632844069] [2022-02-09 04:00:41,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:00:41,731 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:00:41,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:00:41,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:00:41,994 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:00:41,994 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632844069] [2022-02-09 04:00:41,994 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632844069] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:00:41,994 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:00:41,994 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:00:41,994 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218253611] [2022-02-09 04:00:41,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:00:41,994 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:00:41,994 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:00:41,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:00:41,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:00:41,995 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) [2022-02-09 04:00:43,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:00:43,843 INFO L93 Difference]: Finished difference Result 6327 states and 21361 transitions. [2022-02-09 04:00:43,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-02-09 04:00:43,843 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:00:43,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:00:43,860 INFO L225 Difference]: With dead ends: 6327 [2022-02-09 04:00:43,860 INFO L226 Difference]: Without dead ends: 6211 [2022-02-09 04:00:43,861 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 675 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=257, Invalid=2713, Unknown=0, NotChecked=0, Total=2970 [2022-02-09 04:00:43,861 INFO L933 BasicCegarLoop]: 207 mSDtfsCounter, 374 mSDsluCounter, 2310 mSDsCounter, 0 mSdLazyCounter, 2703 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s 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, 1.1s IncrementalHoareTripleChecker+Time [2022-02-09 04:00:43,861 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [374 Valid, 2194 Invalid, 2754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 2703 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-02-09 04:00:43,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6211 states. [2022-02-09 04:00:43,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6211 to 3586. [2022-02-09 04:00:43,924 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) [2022-02-09 04:00:43,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3586 states to 3586 states and 12021 transitions. [2022-02-09 04:00:43,972 INFO L78 Accepts]: Start accepts. Automaton has 3586 states and 12021 transitions. Word has length 39 [2022-02-09 04:00:43,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:00:43,973 INFO L470 AbstractCegarLoop]: Abstraction has 3586 states and 12021 transitions. [2022-02-09 04:00:43,973 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) [2022-02-09 04:00:43,973 INFO L276 IsEmpty]: Start isEmpty. Operand 3586 states and 12021 transitions. [2022-02-09 04:00:43,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:00:43,978 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:00:43,978 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:00:43,978 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-02-09 04:00:43,978 INFO L402 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:00:43,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:00:43,979 INFO L85 PathProgramCache]: Analyzing trace with hash 162684534, now seen corresponding path program 76 times [2022-02-09 04:00:43,979 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:00:43,979 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770222837] [2022-02-09 04:00:43,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:00:43,979 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:00:43,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:00:44,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:00:44,246 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:00:44,247 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770222837] [2022-02-09 04:00:44,247 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770222837] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:00:44,247 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:00:44,247 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:00:44,247 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618702362] [2022-02-09 04:00:44,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:00:44,247 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:00:44,247 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:00:44,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:00:44,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:00:44,247 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) [2022-02-09 04:00:45,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:00:45,232 INFO L93 Difference]: Finished difference Result 3853 states and 12803 transitions. [2022-02-09 04:00:45,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-09 04:00:45,232 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 [2022-02-09 04:00:45,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:00:45,252 INFO L225 Difference]: With dead ends: 3853 [2022-02-09 04:00:45,252 INFO L226 Difference]: Without dead ends: 3786 [2022-02-09 04:00:45,252 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 264 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=164, Invalid=1476, Unknown=0, NotChecked=0, Total=1640 [2022-02-09 04:00:45,253 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 [2022-02-09 04:00:45,253 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] [2022-02-09 04:00:45,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3786 states. [2022-02-09 04:00:45,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3786 to 3634. [2022-02-09 04:00:45,309 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) [2022-02-09 04:00:45,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3634 states to 3634 states and 12149 transitions. [2022-02-09 04:00:45,319 INFO L78 Accepts]: Start accepts. Automaton has 3634 states and 12149 transitions. Word has length 39 [2022-02-09 04:00:45,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:00:45,319 INFO L470 AbstractCegarLoop]: Abstraction has 3634 states and 12149 transitions. [2022-02-09 04:00:45,319 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:00:45,319 INFO L276 IsEmpty]: Start isEmpty. Operand 3634 states and 12149 transitions. [2022-02-09 04:00:45,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:00:45,325 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:00:45,325 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] [2022-02-09 04:00:45,325 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-02-09 04:00:45,325 INFO L402 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:00:45,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:00:45,326 INFO L85 PathProgramCache]: Analyzing trace with hash -9458684, now seen corresponding path program 77 times [2022-02-09 04:00:45,326 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:00:45,326 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135911755] [2022-02-09 04:00:45,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:00:45,326 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:00:45,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:00:45,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:00:45,570 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:00:45,570 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135911755] [2022-02-09 04:00:45,570 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135911755] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:00:45,570 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:00:45,570 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:00:45,570 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237523311] [2022-02-09 04:00:45,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:00:45,571 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:00:45,571 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:00:45,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:00:45,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:00:45,571 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) [2022-02-09 04:00:46,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:00:46,553 INFO L93 Difference]: Finished difference Result 3841 states and 12763 transitions. [2022-02-09 04:00:46,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-02-09 04:00:46,553 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 [2022-02-09 04:00:46,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:00:46,563 INFO L225 Difference]: With dead ends: 3841 [2022-02-09 04:00:46,563 INFO L226 Difference]: Without dead ends: 3778 [2022-02-09 04:00:46,564 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 [2022-02-09 04:00:46,564 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 173 mSDsluCounter, 1121 mSDsCounter, 0 mSdLazyCounter, 1469 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 04:00:46,564 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [173 Valid, 933 Invalid, 1495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1469 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 04:00:46,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3778 states. [2022-02-09 04:00:46,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3778 to 3626. [2022-02-09 04:00:46,613 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) [2022-02-09 04:00:46,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3626 states to 3626 states and 12125 transitions. [2022-02-09 04:00:46,666 INFO L78 Accepts]: Start accepts. Automaton has 3626 states and 12125 transitions. Word has length 39 [2022-02-09 04:00:46,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:00:46,666 INFO L470 AbstractCegarLoop]: Abstraction has 3626 states and 12125 transitions. [2022-02-09 04:00:46,666 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:00:46,666 INFO L276 IsEmpty]: Start isEmpty. Operand 3626 states and 12125 transitions. [2022-02-09 04:00:46,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:00:46,672 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:00:46,672 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:00:46,673 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2022-02-09 04:00:46,673 INFO L402 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:00:46,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:00:46,673 INFO L85 PathProgramCache]: Analyzing trace with hash -1812292840, now seen corresponding path program 78 times [2022-02-09 04:00:46,673 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:00:46,673 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846264305] [2022-02-09 04:00:46,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:00:46,673 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:00:46,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:00:46,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:00:46,929 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:00:46,929 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846264305] [2022-02-09 04:00:46,929 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846264305] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:00:46,929 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:00:46,929 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:00:46,929 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689708400] [2022-02-09 04:00:46,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:00:46,930 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:00:46,930 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:00:46,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:00:46,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:00:46,930 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) [2022-02-09 04:00:47,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:00:47,906 INFO L93 Difference]: Finished difference Result 3841 states and 12755 transitions. [2022-02-09 04:00:47,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-09 04:00:47,907 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 [2022-02-09 04:00:47,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:00:47,915 INFO L225 Difference]: With dead ends: 3841 [2022-02-09 04:00:47,915 INFO L226 Difference]: Without dead ends: 3698 [2022-02-09 04:00:47,916 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 [2022-02-09 04:00:47,916 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 165 mSDsluCounter, 1183 mSDsCounter, 0 mSdLazyCounter, 1472 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 04:00:47,916 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 1001 Invalid, 1494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1472 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 04:00:47,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3698 states. [2022-02-09 04:00:47,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3698 to 3574. [2022-02-09 04:00:47,965 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) [2022-02-09 04:00:47,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3574 states to 3574 states and 11989 transitions. [2022-02-09 04:00:47,973 INFO L78 Accepts]: Start accepts. Automaton has 3574 states and 11989 transitions. Word has length 39 [2022-02-09 04:00:47,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:00:47,973 INFO L470 AbstractCegarLoop]: Abstraction has 3574 states and 11989 transitions. [2022-02-09 04:00:47,973 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) [2022-02-09 04:00:47,973 INFO L276 IsEmpty]: Start isEmpty. Operand 3574 states and 11989 transitions. [2022-02-09 04:00:47,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:00:47,979 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:00:47,979 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:00:47,979 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2022-02-09 04:00:47,979 INFO L402 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:00:47,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:00:47,979 INFO L85 PathProgramCache]: Analyzing trace with hash -1125585594, now seen corresponding path program 79 times [2022-02-09 04:00:47,980 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:00:47,980 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861230013] [2022-02-09 04:00:47,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:00:47,980 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:00:47,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:00:48,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:00:48,248 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:00:48,248 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861230013] [2022-02-09 04:00:48,248 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861230013] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:00:48,248 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:00:48,248 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:00:48,248 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391258112] [2022-02-09 04:00:48,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:00:48,248 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:00:48,249 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:00:48,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:00:48,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:00:48,249 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) [2022-02-09 04:00:49,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:00:49,330 INFO L93 Difference]: Finished difference Result 3979 states and 13198 transitions. [2022-02-09 04:00:49,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-02-09 04:00:49,330 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:00:49,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:00:49,338 INFO L225 Difference]: With dead ends: 3979 [2022-02-09 04:00:49,338 INFO L226 Difference]: Without dead ends: 3912 [2022-02-09 04:00:49,339 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 [2022-02-09 04:00:49,339 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 04:00:49,339 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [231 Valid, 952 Invalid, 1646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 1598 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 04:00:49,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3912 states. [2022-02-09 04:00:49,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3912 to 3622. [2022-02-09 04:00:49,405 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) [2022-02-09 04:00:49,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3622 states to 3622 states and 12135 transitions. [2022-02-09 04:00:49,411 INFO L78 Accepts]: Start accepts. Automaton has 3622 states and 12135 transitions. Word has length 39 [2022-02-09 04:00:49,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:00:49,411 INFO L470 AbstractCegarLoop]: Abstraction has 3622 states and 12135 transitions. [2022-02-09 04:00:49,411 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) [2022-02-09 04:00:49,411 INFO L276 IsEmpty]: Start isEmpty. Operand 3622 states and 12135 transitions. [2022-02-09 04:00:49,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:00:49,416 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:00:49,416 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] [2022-02-09 04:00:49,416 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2022-02-09 04:00:49,416 INFO L402 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:00:49,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:00:49,417 INFO L85 PathProgramCache]: Analyzing trace with hash 1449765732, now seen corresponding path program 80 times [2022-02-09 04:00:49,417 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:00:49,417 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804481393] [2022-02-09 04:00:49,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:00:49,417 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:00:49,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:00:49,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:00:49,671 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:00:49,671 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804481393] [2022-02-09 04:00:49,671 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804481393] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:00:49,671 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:00:49,671 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:00:49,671 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064488833] [2022-02-09 04:00:49,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:00:49,671 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:00:49,671 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:00:49,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:00:49,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:00:49,671 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) [2022-02-09 04:00:51,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:00:51,085 INFO L93 Difference]: Finished difference Result 4064 states and 13387 transitions. [2022-02-09 04:00:51,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-02-09 04:00:51,086 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:00:51,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:00:51,095 INFO L225 Difference]: With dead ends: 4064 [2022-02-09 04:00:51,095 INFO L226 Difference]: Without dead ends: 4021 [2022-02-09 04:00:51,095 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 640 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=263, Invalid=2599, Unknown=0, NotChecked=0, Total=2862 [2022-02-09 04:00:51,096 INFO L933 BasicCegarLoop]: 101 mSDtfsCounter, 285 mSDsluCounter, 1293 mSDsCounter, 0 mSdLazyCounter, 1852 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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 [2022-02-09 04:00:51,096 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] [2022-02-09 04:00:51,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4021 states. [2022-02-09 04:00:51,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4021 to 3628. [2022-02-09 04:00:51,143 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) [2022-02-09 04:00:51,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3628 states to 3628 states and 12148 transitions. [2022-02-09 04:00:51,150 INFO L78 Accepts]: Start accepts. Automaton has 3628 states and 12148 transitions. Word has length 39 [2022-02-09 04:00:51,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:00:51,150 INFO L470 AbstractCegarLoop]: Abstraction has 3628 states and 12148 transitions. [2022-02-09 04:00:51,150 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:00:51,150 INFO L276 IsEmpty]: Start isEmpty. Operand 3628 states and 12148 transitions. [2022-02-09 04:00:51,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:00:51,155 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:00:51,156 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:00:51,156 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2022-02-09 04:00:51,156 INFO L402 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:00:51,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:00:51,156 INFO L85 PathProgramCache]: Analyzing trace with hash -330832570, now seen corresponding path program 81 times [2022-02-09 04:00:51,156 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:00:51,156 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798676291] [2022-02-09 04:00:51,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:00:51,156 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:00:51,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:00:51,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:00:51,388 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:00:51,388 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798676291] [2022-02-09 04:00:51,388 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798676291] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:00:51,388 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:00:51,388 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:00:51,388 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543642195] [2022-02-09 04:00:51,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:00:51,388 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:00:51,388 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:00:51,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:00:51,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:00:51,389 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) [2022-02-09 04:00:52,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:00:52,858 INFO L93 Difference]: Finished difference Result 4019 states and 13283 transitions. [2022-02-09 04:00:52,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-02-09 04:00:52,858 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:00:52,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:00:52,866 INFO L225 Difference]: With dead ends: 4019 [2022-02-09 04:00:52,866 INFO L226 Difference]: Without dead ends: 3955 [2022-02-09 04:00:52,866 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 603 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=254, Invalid=2502, Unknown=0, NotChecked=0, Total=2756 [2022-02-09 04:00:52,867 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 269 mSDsluCounter, 1262 mSDsCounter, 0 mSdLazyCounter, 1816 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.7s IncrementalHoareTripleChecker+Time [2022-02-09 04:00:52,867 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [269 Valid, 1046 Invalid, 1864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 1816 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-09 04:00:52,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3955 states. [2022-02-09 04:00:52,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3955 to 3610. [2022-02-09 04:00:52,905 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) [2022-02-09 04:00:52,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3610 states to 3610 states and 12105 transitions. [2022-02-09 04:00:52,912 INFO L78 Accepts]: Start accepts. Automaton has 3610 states and 12105 transitions. Word has length 39 [2022-02-09 04:00:52,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:00:52,912 INFO L470 AbstractCegarLoop]: Abstraction has 3610 states and 12105 transitions. [2022-02-09 04:00:52,912 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:00:52,912 INFO L276 IsEmpty]: Start isEmpty. Operand 3610 states and 12105 transitions. [2022-02-09 04:00:52,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:00:52,917 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:00:52,918 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:00:52,918 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2022-02-09 04:00:52,918 INFO L402 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:00:52,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:00:52,918 INFO L85 PathProgramCache]: Analyzing trace with hash 289601830, now seen corresponding path program 82 times [2022-02-09 04:00:52,918 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:00:52,918 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059034114] [2022-02-09 04:00:52,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:00:52,918 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:00:52,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:00:53,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:00:53,166 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:00:53,166 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059034114] [2022-02-09 04:00:53,166 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059034114] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:00:53,166 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:00:53,166 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:00:53,166 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086345773] [2022-02-09 04:00:53,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:00:53,166 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:00:53,166 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:00:53,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:00:53,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:00:53,166 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) [2022-02-09 04:00:54,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:00:54,246 INFO L93 Difference]: Finished difference Result 3979 states and 13192 transitions. [2022-02-09 04:00:54,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-09 04:00:54,246 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:00:54,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:00:54,254 INFO L225 Difference]: With dead ends: 3979 [2022-02-09 04:00:54,254 INFO L226 Difference]: Without dead ends: 3912 [2022-02-09 04:00:54,255 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 [2022-02-09 04:00:54,255 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 [2022-02-09 04:00:54,255 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] [2022-02-09 04:00:54,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3912 states. [2022-02-09 04:00:54,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3912 to 3618. [2022-02-09 04:00:54,300 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) [2022-02-09 04:00:54,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3618 states to 3618 states and 12121 transitions. [2022-02-09 04:00:54,307 INFO L78 Accepts]: Start accepts. Automaton has 3618 states and 12121 transitions. Word has length 39 [2022-02-09 04:00:54,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:00:54,307 INFO L470 AbstractCegarLoop]: Abstraction has 3618 states and 12121 transitions. [2022-02-09 04:00:54,307 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:00:54,307 INFO L276 IsEmpty]: Start isEmpty. Operand 3618 states and 12121 transitions. [2022-02-09 04:00:54,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:00:54,312 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:00:54,312 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:00:54,312 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2022-02-09 04:00:54,312 INFO L402 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:00:54,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:00:54,313 INFO L85 PathProgramCache]: Analyzing trace with hash 159006982, now seen corresponding path program 83 times [2022-02-09 04:00:54,313 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:00:54,313 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259902044] [2022-02-09 04:00:54,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:00:54,313 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:00:54,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:00:54,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:00:54,574 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:00:54,574 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259902044] [2022-02-09 04:00:54,574 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259902044] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:00:54,574 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:00:54,574 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:00:54,574 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592171341] [2022-02-09 04:00:54,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:00:54,583 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:00:54,583 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:00:54,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:00:54,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:00:54,583 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) [2022-02-09 04:00:55,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:00:55,742 INFO L93 Difference]: Finished difference Result 3967 states and 13152 transitions. [2022-02-09 04:00:55,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-02-09 04:00:55,743 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 [2022-02-09 04:00:55,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:00:55,750 INFO L225 Difference]: With dead ends: 3967 [2022-02-09 04:00:55,750 INFO L226 Difference]: Without dead ends: 3904 [2022-02-09 04:00:55,751 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 [2022-02-09 04:00:55,751 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 216 mSDsluCounter, 1197 mSDsCounter, 0 mSdLazyCounter, 1634 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.7s IncrementalHoareTripleChecker+Time [2022-02-09 04:00:55,751 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [216 Valid, 1002 Invalid, 1680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 1634 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-09 04:00:55,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3904 states. [2022-02-09 04:00:55,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3904 to 3610. [2022-02-09 04:00:55,793 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) [2022-02-09 04:00:55,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3610 states to 3610 states and 12101 transitions. [2022-02-09 04:00:55,800 INFO L78 Accepts]: Start accepts. Automaton has 3610 states and 12101 transitions. Word has length 39 [2022-02-09 04:00:55,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:00:55,800 INFO L470 AbstractCegarLoop]: Abstraction has 3610 states and 12101 transitions. [2022-02-09 04:00:55,800 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) [2022-02-09 04:00:55,801 INFO L276 IsEmpty]: Start isEmpty. Operand 3610 states and 12101 transitions. [2022-02-09 04:00:55,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:00:55,806 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:00:55,806 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] [2022-02-09 04:00:55,806 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2022-02-09 04:00:55,806 INFO L402 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:00:55,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:00:55,807 INFO L85 PathProgramCache]: Analyzing trace with hash 23328390, now seen corresponding path program 84 times [2022-02-09 04:00:55,807 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:00:55,807 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558326795] [2022-02-09 04:00:55,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:00:55,807 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:00:55,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:00:56,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:00:56,047 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:00:56,048 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558326795] [2022-02-09 04:00:56,048 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558326795] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:00:56,048 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:00:56,048 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:00:56,048 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418098022] [2022-02-09 04:00:56,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:00:56,048 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:00:56,048 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:00:56,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:00:56,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:00:56,049 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) [2022-02-09 04:00:57,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:00:57,466 INFO L93 Difference]: Finished difference Result 4130 states and 13541 transitions. [2022-02-09 04:00:57,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-02-09 04:00:57,467 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:00:57,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:00:57,476 INFO L225 Difference]: With dead ends: 4130 [2022-02-09 04:00:57,477 INFO L226 Difference]: Without dead ends: 4087 [2022-02-09 04:00:57,477 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 711 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=281, Invalid=2799, Unknown=0, NotChecked=0, Total=3080 [2022-02-09 04:00:57,477 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 286 mSDsluCounter, 1299 mSDsCounter, 0 mSdLazyCounter, 1859 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.7s IncrementalHoareTripleChecker+Time [2022-02-09 04:00:57,478 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [286 Valid, 1067 Invalid, 1915 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1859 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-09 04:00:57,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4087 states. [2022-02-09 04:00:57,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4087 to 3618. [2022-02-09 04:00:57,532 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) [2022-02-09 04:00:57,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3618 states to 3618 states and 12121 transitions. [2022-02-09 04:00:57,540 INFO L78 Accepts]: Start accepts. Automaton has 3618 states and 12121 transitions. Word has length 39 [2022-02-09 04:00:57,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:00:57,540 INFO L470 AbstractCegarLoop]: Abstraction has 3618 states and 12121 transitions. [2022-02-09 04:00:57,540 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:00:57,540 INFO L276 IsEmpty]: Start isEmpty. Operand 3618 states and 12121 transitions. [2022-02-09 04:00:57,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:00:57,546 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:00:57,546 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:00:57,546 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2022-02-09 04:00:57,546 INFO L402 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:00:57,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:00:57,547 INFO L85 PathProgramCache]: Analyzing trace with hash -1757269912, now seen corresponding path program 85 times [2022-02-09 04:00:57,547 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:00:57,547 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160164415] [2022-02-09 04:00:57,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:00:57,547 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:00:57,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:00:57,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:00:57,782 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:00:57,783 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160164415] [2022-02-09 04:00:57,783 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160164415] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:00:57,783 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:00:57,783 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:00:57,783 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877277106] [2022-02-09 04:00:57,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:00:57,783 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:00:57,783 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:00:57,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:00:57,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:00:57,783 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) [2022-02-09 04:00:59,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:00:59,197 INFO L93 Difference]: Finished difference Result 4118 states and 13503 transitions. [2022-02-09 04:00:59,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-02-09 04:00:59,198 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:00:59,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:00:59,206 INFO L225 Difference]: With dead ends: 4118 [2022-02-09 04:00:59,206 INFO L226 Difference]: Without dead ends: 4066 [2022-02-09 04:00:59,206 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 [2022-02-09 04:00:59,206 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 281 mSDsluCounter, 1271 mSDsCounter, 0 mSdLazyCounter, 1829 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.7s IncrementalHoareTripleChecker+Time [2022-02-09 04:00:59,206 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [281 Valid, 1050 Invalid, 1880 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 1829 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-09 04:00:59,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4066 states. [2022-02-09 04:00:59,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4066 to 3610. [2022-02-09 04:00:59,247 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) [2022-02-09 04:00:59,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3610 states to 3610 states and 12101 transitions. [2022-02-09 04:00:59,253 INFO L78 Accepts]: Start accepts. Automaton has 3610 states and 12101 transitions. Word has length 39 [2022-02-09 04:00:59,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:00:59,253 INFO L470 AbstractCegarLoop]: Abstraction has 3610 states and 12101 transitions. [2022-02-09 04:00:59,253 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:00:59,253 INFO L276 IsEmpty]: Start isEmpty. Operand 3610 states and 12101 transitions. [2022-02-09 04:00:59,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:00:59,258 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:00:59,258 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:00:59,258 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2022-02-09 04:00:59,258 INFO L402 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:00:59,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:00:59,258 INFO L85 PathProgramCache]: Analyzing trace with hash 941811960, now seen corresponding path program 86 times [2022-02-09 04:00:59,259 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:00:59,259 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907690905] [2022-02-09 04:00:59,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:00:59,259 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:00:59,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:00:59,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:00:59,522 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:00:59,522 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907690905] [2022-02-09 04:00:59,522 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907690905] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:00:59,522 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:00:59,522 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:00:59,522 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851598338] [2022-02-09 04:00:59,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:00:59,522 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:00:59,522 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:00:59,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:00:59,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:00:59,523 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) [2022-02-09 04:01:00,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:01:00,764 INFO L93 Difference]: Finished difference Result 4095 states and 13426 transitions. [2022-02-09 04:01:00,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-02-09 04:01:00,764 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 [2022-02-09 04:01:00,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:01:00,772 INFO L225 Difference]: With dead ends: 4095 [2022-02-09 04:01:00,772 INFO L226 Difference]: Without dead ends: 4040 [2022-02-09 04:01:00,773 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 480 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=225, Invalid=2127, Unknown=0, NotChecked=0, Total=2352 [2022-02-09 04:01:00,773 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 244 mSDsluCounter, 1243 mSDsCounter, 0 mSdLazyCounter, 1685 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.7s IncrementalHoareTripleChecker+Time [2022-02-09 04:01:00,773 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [244 Valid, 1011 Invalid, 1734 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1685 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-09 04:01:00,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4040 states. [2022-02-09 04:01:00,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4040 to 3612. [2022-02-09 04:01:00,815 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) [2022-02-09 04:01:00,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3612 states to 3612 states and 12104 transitions. [2022-02-09 04:01:00,822 INFO L78 Accepts]: Start accepts. Automaton has 3612 states and 12104 transitions. Word has length 39 [2022-02-09 04:01:00,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:01:00,822 INFO L470 AbstractCegarLoop]: Abstraction has 3612 states and 12104 transitions. [2022-02-09 04:01:00,822 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:01:00,822 INFO L276 IsEmpty]: Start isEmpty. Operand 3612 states and 12104 transitions. [2022-02-09 04:01:00,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:01:00,827 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:01:00,827 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:01:00,827 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2022-02-09 04:01:00,827 INFO L402 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:01:00,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:01:00,827 INFO L85 PathProgramCache]: Analyzing trace with hash 2114464182, now seen corresponding path program 87 times [2022-02-09 04:01:00,827 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:01:00,827 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699469776] [2022-02-09 04:01:00,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:01:00,827 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:01:00,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:01:01,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:01:01,094 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:01:01,094 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699469776] [2022-02-09 04:01:01,094 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699469776] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:01:01,094 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:01:01,094 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:01:01,094 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313576602] [2022-02-09 04:01:01,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:01:01,095 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:01:01,095 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:01:01,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:01:01,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:01:01,095 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) [2022-02-09 04:01:02,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:01:02,253 INFO L93 Difference]: Finished difference Result 4030 states and 13274 transitions. [2022-02-09 04:01:02,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-09 04:01:02,253 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:01:02,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:01:02,262 INFO L225 Difference]: With dead ends: 4030 [2022-02-09 04:01:02,262 INFO L226 Difference]: Without dead ends: 3984 [2022-02-09 04:01:02,262 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 389 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=200, Invalid=1870, Unknown=0, NotChecked=0, Total=2070 [2022-02-09 04:01:02,263 INFO L933 BasicCegarLoop]: 96 mSDtfsCounter, 228 mSDsluCounter, 1243 mSDsCounter, 0 mSdLazyCounter, 1647 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.7s IncrementalHoareTripleChecker+Time [2022-02-09 04:01:02,263 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [228 Valid, 1009 Invalid, 1684 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1647 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-09 04:01:02,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3984 states. [2022-02-09 04:01:02,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3984 to 3616. [2022-02-09 04:01:02,307 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) [2022-02-09 04:01:02,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3616 states to 3616 states and 12112 transitions. [2022-02-09 04:01:02,315 INFO L78 Accepts]: Start accepts. Automaton has 3616 states and 12112 transitions. Word has length 39 [2022-02-09 04:01:02,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:01:02,315 INFO L470 AbstractCegarLoop]: Abstraction has 3616 states and 12112 transitions. [2022-02-09 04:01:02,315 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) [2022-02-09 04:01:02,315 INFO L276 IsEmpty]: Start isEmpty. Operand 3616 states and 12112 transitions. [2022-02-09 04:01:02,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:01:02,321 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:01:02,321 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] [2022-02-09 04:01:02,321 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2022-02-09 04:01:02,321 INFO L402 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:01:02,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:01:02,321 INFO L85 PathProgramCache]: Analyzing trace with hash 1866998020, now seen corresponding path program 88 times [2022-02-09 04:01:02,321 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:01:02,321 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830645369] [2022-02-09 04:01:02,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:01:02,322 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:01:02,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:01:02,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:01:02,560 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:01:02,560 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830645369] [2022-02-09 04:01:02,560 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830645369] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:01:02,560 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:01:02,560 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:01:02,561 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181072734] [2022-02-09 04:01:02,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:01:02,561 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:01:02,561 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:01:02,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:01:02,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:01:02,561 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) [2022-02-09 04:01:03,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:01:03,658 INFO L93 Difference]: Finished difference Result 3990 states and 13185 transitions. [2022-02-09 04:01:03,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-09 04:01:03,658 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:01:03,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:01:03,666 INFO L225 Difference]: With dead ends: 3990 [2022-02-09 04:01:03,667 INFO L226 Difference]: Without dead ends: 3941 [2022-02-09 04:01:03,667 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 389 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=204, Invalid=1866, Unknown=0, NotChecked=0, Total=2070 [2022-02-09 04:01:03,667 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 [2022-02-09 04:01:03,667 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] [2022-02-09 04:01:03,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3941 states. [2022-02-09 04:01:03,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3941 to 3606. [2022-02-09 04:01:03,713 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) [2022-02-09 04:01:03,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3606 states to 3606 states and 12091 transitions. [2022-02-09 04:01:03,720 INFO L78 Accepts]: Start accepts. Automaton has 3606 states and 12091 transitions. Word has length 39 [2022-02-09 04:01:03,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:01:03,744 INFO L470 AbstractCegarLoop]: Abstraction has 3606 states and 12091 transitions. [2022-02-09 04:01:03,744 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:01:03,744 INFO L276 IsEmpty]: Start isEmpty. Operand 3606 states and 12091 transitions. [2022-02-09 04:01:03,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:01:03,750 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:01:03,750 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] [2022-02-09 04:01:03,750 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2022-02-09 04:01:03,750 INFO L402 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:01:03,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:01:03,750 INFO L85 PathProgramCache]: Analyzing trace with hash -889093754, now seen corresponding path program 89 times [2022-02-09 04:01:03,751 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:01:03,751 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185181009] [2022-02-09 04:01:03,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:01:03,751 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:01:03,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:01:03,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:01:03,988 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:01:03,988 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185181009] [2022-02-09 04:01:03,988 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185181009] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:01:03,988 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:01:03,988 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:01:03,988 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197708035] [2022-02-09 04:01:03,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:01:03,988 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:01:03,988 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:01:03,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:01:03,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:01:03,989 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) [2022-02-09 04:01:04,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:01:04,975 INFO L93 Difference]: Finished difference Result 4037 states and 13379 transitions. [2022-02-09 04:01:04,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-02-09 04:01:04,975 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:01:04,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:01:04,983 INFO L225 Difference]: With dead ends: 4037 [2022-02-09 04:01:04,983 INFO L226 Difference]: Without dead ends: 3970 [2022-02-09 04:01:04,984 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 [2022-02-09 04:01:04,984 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 [2022-02-09 04:01:04,984 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] [2022-02-09 04:01:04,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3970 states. [2022-02-09 04:01:05,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3970 to 3646. [2022-02-09 04:01:05,030 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) [2022-02-09 04:01:05,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3646 states to 3646 states and 12199 transitions. [2022-02-09 04:01:05,037 INFO L78 Accepts]: Start accepts. Automaton has 3646 states and 12199 transitions. Word has length 39 [2022-02-09 04:01:05,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:01:05,037 INFO L470 AbstractCegarLoop]: Abstraction has 3646 states and 12199 transitions. [2022-02-09 04:01:05,037 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:01:05,037 INFO L276 IsEmpty]: Start isEmpty. Operand 3646 states and 12199 transitions. [2022-02-09 04:01:05,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:01:05,042 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:01:05,042 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:01:05,042 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2022-02-09 04:01:05,043 INFO L402 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:01:05,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:01:05,043 INFO L85 PathProgramCache]: Analyzing trace with hash -1019688602, now seen corresponding path program 90 times [2022-02-09 04:01:05,043 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:01:05,043 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573151196] [2022-02-09 04:01:05,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:01:05,043 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:01:05,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:01:05,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:01:05,316 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:01:05,316 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573151196] [2022-02-09 04:01:05,316 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573151196] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:01:05,316 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:01:05,316 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:01:05,316 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568375719] [2022-02-09 04:01:05,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:01:05,317 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:01:05,317 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:01:05,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:01:05,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:01:05,317 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) [2022-02-09 04:01:06,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:01:06,332 INFO L93 Difference]: Finished difference Result 4025 states and 13339 transitions. [2022-02-09 04:01:06,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-02-09 04:01:06,332 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 [2022-02-09 04:01:06,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:01:06,341 INFO L225 Difference]: With dead ends: 4025 [2022-02-09 04:01:06,341 INFO L226 Difference]: Without dead ends: 3962 [2022-02-09 04:01:06,341 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 286 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=169, Invalid=1553, Unknown=0, NotChecked=0, Total=1722 [2022-02-09 04:01:06,341 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 04:01:06,342 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [210 Valid, 1045 Invalid, 1756 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1722 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 04:01:06,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3962 states. [2022-02-09 04:01:06,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3962 to 3638. [2022-02-09 04:01:06,417 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) [2022-02-09 04:01:06,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3638 states to 3638 states and 12175 transitions. [2022-02-09 04:01:06,426 INFO L78 Accepts]: Start accepts. Automaton has 3638 states and 12175 transitions. Word has length 39 [2022-02-09 04:01:06,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:01:06,426 INFO L470 AbstractCegarLoop]: Abstraction has 3638 states and 12175 transitions. [2022-02-09 04:01:06,426 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) [2022-02-09 04:01:06,426 INFO L276 IsEmpty]: Start isEmpty. Operand 3638 states and 12175 transitions. [2022-02-09 04:01:06,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:01:06,431 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:01:06,432 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] [2022-02-09 04:01:06,432 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2022-02-09 04:01:06,432 INFO L402 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:01:06,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:01:06,432 INFO L85 PathProgramCache]: Analyzing trace with hash -1549589050, now seen corresponding path program 91 times [2022-02-09 04:01:06,432 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:01:06,432 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136998781] [2022-02-09 04:01:06,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:01:06,432 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:01:06,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:01:06,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:01:06,669 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:01:06,669 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136998781] [2022-02-09 04:01:06,669 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136998781] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:01:06,669 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:01:06,669 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:01:06,669 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837893319] [2022-02-09 04:01:06,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:01:06,669 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:01:06,669 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:01:06,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:01:06,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:01:06,674 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) [2022-02-09 04:01:07,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:01:07,684 INFO L93 Difference]: Finished difference Result 4037 states and 13367 transitions. [2022-02-09 04:01:07,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-02-09 04:01:07,685 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 [2022-02-09 04:01:07,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:01:07,694 INFO L225 Difference]: With dead ends: 4037 [2022-02-09 04:01:07,694 INFO L226 Difference]: Without dead ends: 3914 [2022-02-09 04:01:07,694 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 285 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=165, Invalid=1557, Unknown=0, NotChecked=0, Total=1722 [2022-02-09 04:01:07,694 INFO L933 BasicCegarLoop]: 113 mSDtfsCounter, 211 mSDsluCounter, 1283 mSDsCounter, 0 mSdLazyCounter, 1744 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 04:01:07,694 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [211 Valid, 1114 Invalid, 1774 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1744 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 04:01:07,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3914 states. [2022-02-09 04:01:07,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3914 to 3606. [2022-02-09 04:01:07,743 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) [2022-02-09 04:01:07,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3606 states to 3606 states and 12075 transitions. [2022-02-09 04:01:07,751 INFO L78 Accepts]: Start accepts. Automaton has 3606 states and 12075 transitions. Word has length 39 [2022-02-09 04:01:07,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:01:07,751 INFO L470 AbstractCegarLoop]: Abstraction has 3606 states and 12075 transitions. [2022-02-09 04:01:07,751 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) [2022-02-09 04:01:07,751 INFO L276 IsEmpty]: Start isEmpty. Operand 3606 states and 12075 transitions. [2022-02-09 04:01:07,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:01:07,757 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:01:07,757 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] [2022-02-09 04:01:07,757 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2022-02-09 04:01:07,757 INFO L402 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:01:07,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:01:07,757 INFO L85 PathProgramCache]: Analyzing trace with hash 2026967076, now seen corresponding path program 92 times [2022-02-09 04:01:07,757 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:01:07,758 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431699774] [2022-02-09 04:01:07,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:01:07,758 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:01:07,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:01:07,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:01:07,982 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:01:07,982 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431699774] [2022-02-09 04:01:07,982 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431699774] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:01:07,982 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:01:07,982 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:01:07,982 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374954632] [2022-02-09 04:01:07,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:01:07,983 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:01:07,983 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:01:07,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:01:07,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:01:07,983 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) [2022-02-09 04:01:09,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:01:09,589 INFO L93 Difference]: Finished difference Result 5612 states and 19007 transitions. [2022-02-09 04:01:09,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-02-09 04:01:09,589 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 [2022-02-09 04:01:09,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:01:09,601 INFO L225 Difference]: With dead ends: 5612 [2022-02-09 04:01:09,601 INFO L226 Difference]: Without dead ends: 5569 [2022-02-09 04:01:09,602 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 705 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=279, Invalid=2801, Unknown=0, NotChecked=0, Total=3080 [2022-02-09 04:01:09,602 INFO L933 BasicCegarLoop]: 162 mSDtfsCounter, 387 mSDsluCounter, 1897 mSDsCounter, 0 mSdLazyCounter, 2479 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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, 0.8s IncrementalHoareTripleChecker+Time [2022-02-09 04:01:09,602 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [387 Valid, 1741 Invalid, 2540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 2479 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-09 04:01:09,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5569 states. [2022-02-09 04:01:09,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5569 to 3620. [2022-02-09 04:01:09,672 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) [2022-02-09 04:01:09,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3620 states to 3620 states and 12116 transitions. [2022-02-09 04:01:09,684 INFO L78 Accepts]: Start accepts. Automaton has 3620 states and 12116 transitions. Word has length 39 [2022-02-09 04:01:09,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:01:09,684 INFO L470 AbstractCegarLoop]: Abstraction has 3620 states and 12116 transitions. [2022-02-09 04:01:09,684 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:01:09,684 INFO L276 IsEmpty]: Start isEmpty. Operand 3620 states and 12116 transitions. [2022-02-09 04:01:09,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:01:09,692 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:01:09,692 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:01:09,692 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2022-02-09 04:01:09,693 INFO L402 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:01:09,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:01:09,693 INFO L85 PathProgramCache]: Analyzing trace with hash 246368774, now seen corresponding path program 93 times [2022-02-09 04:01:09,693 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:01:09,693 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708463614] [2022-02-09 04:01:09,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:01:09,693 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:01:09,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:01:09,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:01:09,930 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:01:09,930 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708463614] [2022-02-09 04:01:09,931 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708463614] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:01:09,931 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:01:09,931 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:01:09,931 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114255450] [2022-02-09 04:01:09,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:01:09,931 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:01:09,931 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:01:09,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:01:09,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:01:09,931 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) [2022-02-09 04:01:11,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:01:11,790 INFO L93 Difference]: Finished difference Result 6473 states and 21937 transitions. [2022-02-09 04:01:11,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-02-09 04:01:11,790 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 [2022-02-09 04:01:11,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:01:11,806 INFO L225 Difference]: With dead ends: 6473 [2022-02-09 04:01:11,806 INFO L226 Difference]: Without dead ends: 6421 [2022-02-09 04:01:11,807 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 947 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=321, Invalid=3461, Unknown=0, NotChecked=0, Total=3782 [2022-02-09 04:01:11,807 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 429 mSDsluCounter, 2217 mSDsCounter, 0 mSdLazyCounter, 2819 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s 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, 1.0s IncrementalHoareTripleChecker+Time [2022-02-09 04:01:11,807 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [429 Valid, 2097 Invalid, 2887 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 2819 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-02-09 04:01:11,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6421 states. [2022-02-09 04:01:11,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6421 to 3606. [2022-02-09 04:01:11,902 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) [2022-02-09 04:01:11,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3606 states to 3606 states and 12075 transitions. [2022-02-09 04:01:11,909 INFO L78 Accepts]: Start accepts. Automaton has 3606 states and 12075 transitions. Word has length 39 [2022-02-09 04:01:11,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:01:11,909 INFO L470 AbstractCegarLoop]: Abstraction has 3606 states and 12075 transitions. [2022-02-09 04:01:11,909 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:01:11,909 INFO L276 IsEmpty]: Start isEmpty. Operand 3606 states and 12075 transitions. [2022-02-09 04:01:11,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:01:11,914 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:01:11,914 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:01:11,914 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2022-02-09 04:01:11,914 INFO L402 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:01:11,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:01:11,915 INFO L85 PathProgramCache]: Analyzing trace with hash -1349516650, now seen corresponding path program 94 times [2022-02-09 04:01:11,915 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:01:11,915 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557893742] [2022-02-09 04:01:11,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:01:11,915 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:01:11,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:01:12,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:01:12,136 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:01:12,136 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557893742] [2022-02-09 04:01:12,136 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557893742] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:01:12,136 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:01:12,136 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:01:12,136 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670355646] [2022-02-09 04:01:12,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:01:12,136 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:01:12,136 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:01:12,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:01:12,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:01:12,137 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) [2022-02-09 04:01:13,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:01:13,397 INFO L93 Difference]: Finished difference Result 5417 states and 18181 transitions. [2022-02-09 04:01:13,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-02-09 04:01:13,397 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 [2022-02-09 04:01:13,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:01:13,409 INFO L225 Difference]: With dead ends: 5417 [2022-02-09 04:01:13,409 INFO L226 Difference]: Without dead ends: 5362 [2022-02-09 04:01:13,409 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 [2022-02-09 04:01:13,410 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, 0.7s IncrementalHoareTripleChecker+Time [2022-02-09 04:01:13,410 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [329 Valid, 1635 Invalid, 2261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 2221 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-09 04:01:13,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5362 states. [2022-02-09 04:01:13,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5362 to 3614. [2022-02-09 04:01:13,461 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) [2022-02-09 04:01:13,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3614 states to 3614 states and 12099 transitions. [2022-02-09 04:01:13,468 INFO L78 Accepts]: Start accepts. Automaton has 3614 states and 12099 transitions. Word has length 39 [2022-02-09 04:01:13,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:01:13,468 INFO L470 AbstractCegarLoop]: Abstraction has 3614 states and 12099 transitions. [2022-02-09 04:01:13,468 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) [2022-02-09 04:01:13,468 INFO L276 IsEmpty]: Start isEmpty. Operand 3614 states and 12099 transitions. [2022-02-09 04:01:13,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:01:13,473 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:01:13,473 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] [2022-02-09 04:01:13,473 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2022-02-09 04:01:13,473 INFO L402 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:01:13,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:01:13,473 INFO L85 PathProgramCache]: Analyzing trace with hash -176864428, now seen corresponding path program 95 times [2022-02-09 04:01:13,473 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:01:13,473 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145232645] [2022-02-09 04:01:13,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:01:13,474 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:01:13,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:01:13,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:01:13,725 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:01:13,726 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145232645] [2022-02-09 04:01:13,726 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145232645] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:01:13,726 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:01:13,726 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:01:13,726 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406579378] [2022-02-09 04:01:13,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:01:13,726 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:01:13,726 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:01:13,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:01:13,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:01:13,726 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) [2022-02-09 04:01:15,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:01:15,321 INFO L93 Difference]: Finished difference Result 6278 states and 21115 transitions. [2022-02-09 04:01:15,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-02-09 04:01:15,321 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:01:15,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:01:15,334 INFO L225 Difference]: With dead ends: 6278 [2022-02-09 04:01:15,335 INFO L226 Difference]: Without dead ends: 6218 [2022-02-09 04:01:15,335 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 606 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=249, Invalid=2507, Unknown=0, NotChecked=0, Total=2756 [2022-02-09 04:01:15,335 INFO L933 BasicCegarLoop]: 189 mSDtfsCounter, 355 mSDsluCounter, 2134 mSDsCounter, 0 mSdLazyCounter, 2555 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s 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 [2022-02-09 04:01:15,336 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] [2022-02-09 04:01:15,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6218 states. [2022-02-09 04:01:15,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6218 to 3612. [2022-02-09 04:01:15,392 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) [2022-02-09 04:01:15,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3612 states to 3612 states and 12094 transitions. [2022-02-09 04:01:15,399 INFO L78 Accepts]: Start accepts. Automaton has 3612 states and 12094 transitions. Word has length 39 [2022-02-09 04:01:15,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:01:15,399 INFO L470 AbstractCegarLoop]: Abstraction has 3612 states and 12094 transitions. [2022-02-09 04:01:15,399 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) [2022-02-09 04:01:15,399 INFO L276 IsEmpty]: Start isEmpty. Operand 3612 states and 12094 transitions. [2022-02-09 04:01:15,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:01:15,404 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:01:15,404 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] [2022-02-09 04:01:15,404 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2022-02-09 04:01:15,404 INFO L402 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:01:15,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:01:15,404 INFO L85 PathProgramCache]: Analyzing trace with hash -2054268030, now seen corresponding path program 96 times [2022-02-09 04:01:15,405 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:01:15,405 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144381710] [2022-02-09 04:01:15,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:01:15,405 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:01:15,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:01:15,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:01:15,649 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:01:15,649 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144381710] [2022-02-09 04:01:15,649 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144381710] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:01:15,649 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:01:15,649 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:01:15,649 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672824265] [2022-02-09 04:01:15,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:01:15,650 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:01:15,650 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:01:15,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:01:15,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:01:15,650 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) [2022-02-09 04:01:16,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:01:16,890 INFO L93 Difference]: Finished difference Result 5378 states and 18115 transitions. [2022-02-09 04:01:16,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-02-09 04:01:16,890 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 [2022-02-09 04:01:16,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:01:16,903 INFO L225 Difference]: With dead ends: 5378 [2022-02-09 04:01:16,904 INFO L226 Difference]: Without dead ends: 5287 [2022-02-09 04:01:16,904 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 417 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=203, Invalid=1959, Unknown=0, NotChecked=0, Total=2162 [2022-02-09 04:01:16,904 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 [2022-02-09 04:01:16,904 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] [2022-02-09 04:01:16,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5287 states. [2022-02-09 04:01:16,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5287 to 3612. [2022-02-09 04:01:16,956 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) [2022-02-09 04:01:16,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3612 states to 3612 states and 12088 transitions. [2022-02-09 04:01:16,962 INFO L78 Accepts]: Start accepts. Automaton has 3612 states and 12088 transitions. Word has length 39 [2022-02-09 04:01:16,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:01:16,962 INFO L470 AbstractCegarLoop]: Abstraction has 3612 states and 12088 transitions. [2022-02-09 04:01:16,963 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:01:16,963 INFO L276 IsEmpty]: Start isEmpty. Operand 3612 states and 12088 transitions. [2022-02-09 04:01:16,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:01:16,968 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:01:16,968 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:01:16,968 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2022-02-09 04:01:16,968 INFO L402 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:01:16,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:01:16,968 INFO L85 PathProgramCache]: Analyzing trace with hash 738217060, now seen corresponding path program 97 times [2022-02-09 04:01:16,968 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:01:16,968 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611750085] [2022-02-09 04:01:16,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:01:16,968 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:01:16,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:01:17,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:01:17,253 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:01:17,253 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611750085] [2022-02-09 04:01:17,253 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611750085] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:01:17,254 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:01:17,254 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:01:17,254 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047377915] [2022-02-09 04:01:17,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:01:17,254 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:01:17,254 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:01:17,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:01:17,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:01:17,254 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) [2022-02-09 04:01:18,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:01:18,708 INFO L93 Difference]: Finished difference Result 6191 states and 20917 transitions. [2022-02-09 04:01:18,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-02-09 04:01:18,709 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:01:18,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:01:18,723 INFO L225 Difference]: With dead ends: 6191 [2022-02-09 04:01:18,724 INFO L226 Difference]: Without dead ends: 6075 [2022-02-09 04:01:18,724 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 534 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=228, Invalid=2322, Unknown=0, NotChecked=0, Total=2550 [2022-02-09 04:01:18,724 INFO L933 BasicCegarLoop]: 197 mSDtfsCounter, 325 mSDsluCounter, 2207 mSDsCounter, 0 mSdLazyCounter, 2561 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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, 0.8s IncrementalHoareTripleChecker+Time [2022-02-09 04:01:18,724 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [325 Valid, 2095 Invalid, 2598 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 2561 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-09 04:01:18,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6075 states. [2022-02-09 04:01:18,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6075 to 3590. [2022-02-09 04:01:18,784 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) [2022-02-09 04:01:18,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3590 states to 3590 states and 12037 transitions. [2022-02-09 04:01:18,791 INFO L78 Accepts]: Start accepts. Automaton has 3590 states and 12037 transitions. Word has length 39 [2022-02-09 04:01:18,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:01:18,791 INFO L470 AbstractCegarLoop]: Abstraction has 3590 states and 12037 transitions. [2022-02-09 04:01:18,791 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:01:18,791 INFO L276 IsEmpty]: Start isEmpty. Operand 3590 states and 12037 transitions. [2022-02-09 04:01:18,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:01:18,796 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:01:18,797 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] [2022-02-09 04:01:18,797 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2022-02-09 04:01:18,797 INFO L402 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:01:18,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:01:18,797 INFO L85 PathProgramCache]: Analyzing trace with hash 1367450324, now seen corresponding path program 98 times [2022-02-09 04:01:18,797 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:01:18,797 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533502324] [2022-02-09 04:01:18,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:01:18,797 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:01:18,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:01:19,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:01:19,041 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:01:19,041 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533502324] [2022-02-09 04:01:19,041 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533502324] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:01:19,041 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:01:19,041 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:01:19,041 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370297755] [2022-02-09 04:01:19,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:01:19,041 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:01:19,041 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:01:19,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:01:19,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:01:19,042 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) [2022-02-09 04:01:19,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:01:19,866 INFO L93 Difference]: Finished difference Result 3901 states and 12905 transitions. [2022-02-09 04:01:19,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-09 04:01:19,866 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 [2022-02-09 04:01:19,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:01:19,874 INFO L225 Difference]: With dead ends: 3901 [2022-02-09 04:01:19,875 INFO L226 Difference]: Without dead ends: 3834 [2022-02-09 04:01:19,875 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=155, Invalid=1405, Unknown=0, NotChecked=0, Total=1560 [2022-02-09 04:01:19,875 INFO L933 BasicCegarLoop]: 86 mSDtfsCounter, 177 mSDsluCounter, 1042 mSDsCounter, 0 mSdLazyCounter, 1393 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.5s IncrementalHoareTripleChecker+Time [2022-02-09 04:01:19,875 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [177 Valid, 844 Invalid, 1417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1393 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-09 04:01:19,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3834 states. [2022-02-09 04:01:19,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3834 to 3646. [2022-02-09 04:01:19,936 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) [2022-02-09 04:01:19,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3646 states to 3646 states and 12185 transitions. [2022-02-09 04:01:19,944 INFO L78 Accepts]: Start accepts. Automaton has 3646 states and 12185 transitions. Word has length 39 [2022-02-09 04:01:19,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:01:19,945 INFO L470 AbstractCegarLoop]: Abstraction has 3646 states and 12185 transitions. [2022-02-09 04:01:19,945 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:01:19,945 INFO L276 IsEmpty]: Start isEmpty. Operand 3646 states and 12185 transitions. [2022-02-09 04:01:19,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:01:19,950 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:01:19,950 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:01:19,950 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2022-02-09 04:01:19,950 INFO L402 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:01:19,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:01:19,951 INFO L85 PathProgramCache]: Analyzing trace with hash 1195307106, now seen corresponding path program 99 times [2022-02-09 04:01:19,951 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:01:19,951 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266420303] [2022-02-09 04:01:19,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:01:19,951 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:01:19,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:01:20,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:01:20,188 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:01:20,188 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266420303] [2022-02-09 04:01:20,188 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266420303] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:01:20,188 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:01:20,188 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:01:20,188 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573514320] [2022-02-09 04:01:20,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:01:20,188 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:01:20,188 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:01:20,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:01:20,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:01:20,189 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) [2022-02-09 04:01:21,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:01:21,073 INFO L93 Difference]: Finished difference Result 3889 states and 12865 transitions. [2022-02-09 04:01:21,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-02-09 04:01:21,073 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:01:21,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:01:21,081 INFO L225 Difference]: With dead ends: 3889 [2022-02-09 04:01:21,081 INFO L226 Difference]: Without dead ends: 3826 [2022-02-09 04:01:21,082 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=154, Invalid=1406, Unknown=0, NotChecked=0, Total=1560 [2022-02-09 04:01:21,082 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 [2022-02-09 04:01:21,082 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] [2022-02-09 04:01:21,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3826 states. [2022-02-09 04:01:21,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3826 to 3638. [2022-02-09 04:01:21,123 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) [2022-02-09 04:01:21,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3638 states to 3638 states and 12161 transitions. [2022-02-09 04:01:21,130 INFO L78 Accepts]: Start accepts. Automaton has 3638 states and 12161 transitions. Word has length 39 [2022-02-09 04:01:21,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:01:21,130 INFO L470 AbstractCegarLoop]: Abstraction has 3638 states and 12161 transitions. [2022-02-09 04:01:21,130 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:01:21,130 INFO L276 IsEmpty]: Start isEmpty. Operand 3638 states and 12161 transitions. [2022-02-09 04:01:21,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:01:21,135 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:01:21,135 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:01:21,135 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2022-02-09 04:01:21,135 INFO L402 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:01:21,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:01:21,136 INFO L85 PathProgramCache]: Analyzing trace with hash -607527050, now seen corresponding path program 100 times [2022-02-09 04:01:21,136 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:01:21,136 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213121521] [2022-02-09 04:01:21,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:01:21,136 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:01:21,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:01:21,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:01:21,367 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:01:21,367 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213121521] [2022-02-09 04:01:21,367 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213121521] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:01:21,367 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:01:21,367 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:01:21,367 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788773310] [2022-02-09 04:01:21,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:01:21,368 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:01:21,368 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:01:21,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:01:21,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:01:21,368 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) [2022-02-09 04:01:22,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:01:22,311 INFO L93 Difference]: Finished difference Result 3889 states and 12857 transitions. [2022-02-09 04:01:22,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-09 04:01:22,311 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:01:22,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:01:22,319 INFO L225 Difference]: With dead ends: 3889 [2022-02-09 04:01:22,319 INFO L226 Difference]: Without dead ends: 3754 [2022-02-09 04:01:22,320 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=152, Invalid=1408, Unknown=0, NotChecked=0, Total=1560 [2022-02-09 04:01:22,320 INFO L933 BasicCegarLoop]: 94 mSDtfsCounter, 168 mSDsluCounter, 1125 mSDsCounter, 0 mSdLazyCounter, 1418 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 04:01:22,320 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [168 Valid, 937 Invalid, 1440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1418 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 04:01:22,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3754 states. [2022-02-09 04:01:22,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3754 to 3594. [2022-02-09 04:01:22,360 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) [2022-02-09 04:01:22,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3594 states to 3594 states and 12045 transitions. [2022-02-09 04:01:22,396 INFO L78 Accepts]: Start accepts. Automaton has 3594 states and 12045 transitions. Word has length 39 [2022-02-09 04:01:22,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:01:22,396 INFO L470 AbstractCegarLoop]: Abstraction has 3594 states and 12045 transitions. [2022-02-09 04:01:22,396 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) [2022-02-09 04:01:22,396 INFO L276 IsEmpty]: Start isEmpty. Operand 3594 states and 12045 transitions. [2022-02-09 04:01:22,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:01:22,401 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:01:22,401 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:01:22,401 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2022-02-09 04:01:22,402 INFO L402 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:01:22,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:01:22,402 INFO L85 PathProgramCache]: Analyzing trace with hash -28107814, now seen corresponding path program 101 times [2022-02-09 04:01:22,402 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:01:22,402 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623004485] [2022-02-09 04:01:22,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:01:22,402 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:01:22,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:01:22,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:01:22,637 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:01:22,637 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623004485] [2022-02-09 04:01:22,637 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623004485] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:01:22,637 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:01:22,637 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:01:22,637 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114337818] [2022-02-09 04:01:22,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:01:22,637 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:01:22,637 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:01:22,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:01:22,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:01:22,638 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) [2022-02-09 04:01:23,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:01:23,463 INFO L93 Difference]: Finished difference Result 3825 states and 12693 transitions. [2022-02-09 04:01:23,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-02-09 04:01:23,463 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:01:23,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:01:23,472 INFO L225 Difference]: With dead ends: 3825 [2022-02-09 04:01:23,472 INFO L226 Difference]: Without dead ends: 3758 [2022-02-09 04:01:23,473 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 [2022-02-09 04:01:23,473 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 [2022-02-09 04:01:23,473 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] [2022-02-09 04:01:23,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3758 states. [2022-02-09 04:01:23,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3758 to 3650. [2022-02-09 04:01:23,516 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) [2022-02-09 04:01:23,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3650 states to 3650 states and 12193 transitions. [2022-02-09 04:01:23,523 INFO L78 Accepts]: Start accepts. Automaton has 3650 states and 12193 transitions. Word has length 39 [2022-02-09 04:01:23,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:01:23,524 INFO L470 AbstractCegarLoop]: Abstraction has 3650 states and 12193 transitions. [2022-02-09 04:01:23,524 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) [2022-02-09 04:01:23,524 INFO L276 IsEmpty]: Start isEmpty. Operand 3650 states and 12193 transitions. [2022-02-09 04:01:23,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:01:23,529 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:01:23,529 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:01:23,529 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2022-02-09 04:01:23,529 INFO L402 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:01:23,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:01:23,529 INFO L85 PathProgramCache]: Analyzing trace with hash -200251032, now seen corresponding path program 102 times [2022-02-09 04:01:23,529 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:01:23,529 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515251426] [2022-02-09 04:01:23,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:01:23,529 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:01:23,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:01:23,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:01:23,779 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:01:23,779 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515251426] [2022-02-09 04:01:23,779 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515251426] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:01:23,779 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:01:23,779 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:01:23,779 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550521223] [2022-02-09 04:01:23,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:01:23,779 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:01:23,779 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:01:23,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:01:23,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:01:23,779 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) [2022-02-09 04:01:24,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:01:24,627 INFO L93 Difference]: Finished difference Result 3813 states and 12653 transitions. [2022-02-09 04:01:24,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-09 04:01:24,627 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 [2022-02-09 04:01:24,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:01:24,635 INFO L225 Difference]: With dead ends: 3813 [2022-02-09 04:01:24,635 INFO L226 Difference]: Without dead ends: 3750 [2022-02-09 04:01:24,635 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 [2022-02-09 04:01:24,636 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, 0.5s IncrementalHoareTripleChecker+Time [2022-02-09 04:01:24,636 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 841 Invalid, 1400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1377 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-09 04:01:24,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3750 states. [2022-02-09 04:01:24,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3750 to 3642. [2022-02-09 04:01:24,679 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) [2022-02-09 04:01:24,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3642 states to 3642 states and 12169 transitions. [2022-02-09 04:01:24,686 INFO L78 Accepts]: Start accepts. Automaton has 3642 states and 12169 transitions. Word has length 39 [2022-02-09 04:01:24,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:01:24,686 INFO L470 AbstractCegarLoop]: Abstraction has 3642 states and 12169 transitions. [2022-02-09 04:01:24,687 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) [2022-02-09 04:01:24,687 INFO L276 IsEmpty]: Start isEmpty. Operand 3642 states and 12169 transitions. [2022-02-09 04:01:24,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:01:24,692 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:01:24,692 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:01:24,692 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2022-02-09 04:01:24,692 INFO L402 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:01:24,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:01:24,693 INFO L85 PathProgramCache]: Analyzing trace with hash -2003085188, now seen corresponding path program 103 times [2022-02-09 04:01:24,693 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:01:24,693 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932399045] [2022-02-09 04:01:24,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:01:24,693 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:01:24,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:01:24,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:01:24,980 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:01:24,980 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932399045] [2022-02-09 04:01:24,980 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932399045] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:01:24,980 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:01:24,980 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:01:24,980 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766119849] [2022-02-09 04:01:24,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:01:24,981 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:01:24,981 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:01:24,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:01:24,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:01:24,981 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) [2022-02-09 04:01:25,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:01:25,785 INFO L93 Difference]: Finished difference Result 3813 states and 12645 transitions. [2022-02-09 04:01:25,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-02-09 04:01:25,785 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:01:25,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:01:25,793 INFO L225 Difference]: With dead ends: 3813 [2022-02-09 04:01:25,793 INFO L226 Difference]: Without dead ends: 3662 [2022-02-09 04:01:25,793 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 221 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=142, Invalid=1340, Unknown=0, NotChecked=0, Total=1482 [2022-02-09 04:01:25,794 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, 0.5s IncrementalHoareTripleChecker+Time [2022-02-09 04:01:25,794 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 909 Invalid, 1400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1381 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-09 04:01:25,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3662 states. [2022-02-09 04:01:25,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3662 to 3582. [2022-02-09 04:01:25,833 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) [2022-02-09 04:01:25,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3582 states to 3582 states and 12017 transitions. [2022-02-09 04:01:25,840 INFO L78 Accepts]: Start accepts. Automaton has 3582 states and 12017 transitions. Word has length 39 [2022-02-09 04:01:25,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:01:25,840 INFO L470 AbstractCegarLoop]: Abstraction has 3582 states and 12017 transitions. [2022-02-09 04:01:25,840 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) [2022-02-09 04:01:25,840 INFO L276 IsEmpty]: Start isEmpty. Operand 3582 states and 12017 transitions. [2022-02-09 04:01:25,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:01:25,845 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:01:25,845 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:01:25,845 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2022-02-09 04:01:25,845 INFO L402 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:01:25,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:01:25,845 INFO L85 PathProgramCache]: Analyzing trace with hash 1826084602, now seen corresponding path program 104 times [2022-02-09 04:01:25,845 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:01:25,845 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288684833] [2022-02-09 04:01:25,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:01:25,846 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:01:25,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:01:26,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:01:26,062 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:01:26,062 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288684833] [2022-02-09 04:01:26,062 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288684833] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:01:26,062 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:01:26,062 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-09 04:01:26,062 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564544312] [2022-02-09 04:01:26,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:01:26,062 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-02-09 04:01:26,062 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:01:26,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-02-09 04:01:26,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2022-02-09 04:01:26,063 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) [2022-02-09 04:01:27,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:01:27,094 INFO L93 Difference]: Finished difference Result 4145 states and 13826 transitions. [2022-02-09 04:01:27,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-02-09 04:01:27,094 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 [2022-02-09 04:01:27,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:01:27,103 INFO L225 Difference]: With dead ends: 4145 [2022-02-09 04:01:27,103 INFO L226 Difference]: Without dead ends: 4066 [2022-02-09 04:01:27,104 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 417 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=209, Invalid=1771, Unknown=0, NotChecked=0, Total=1980 [2022-02-09 04:01:27,104 INFO L933 BasicCegarLoop]: 117 mSDtfsCounter, 229 mSDsluCounter, 1132 mSDsCounter, 0 mSdLazyCounter, 1573 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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 [2022-02-09 04:01:27,104 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] [2022-02-09 04:01:27,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4066 states. [2022-02-09 04:01:27,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4066 to 3658. [2022-02-09 04:01:27,155 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) [2022-02-09 04:01:27,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3658 states to 3658 states and 12255 transitions. [2022-02-09 04:01:27,163 INFO L78 Accepts]: Start accepts. Automaton has 3658 states and 12255 transitions. Word has length 39 [2022-02-09 04:01:27,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:01:27,163 INFO L470 AbstractCegarLoop]: Abstraction has 3658 states and 12255 transitions. [2022-02-09 04:01:27,163 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) [2022-02-09 04:01:27,163 INFO L276 IsEmpty]: Start isEmpty. Operand 3658 states and 12255 transitions. [2022-02-09 04:01:27,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:01:27,169 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:01:27,169 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:01:27,169 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2022-02-09 04:01:27,169 INFO L402 AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:01:27,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:01:27,169 INFO L85 PathProgramCache]: Analyzing trace with hash -2082945286, now seen corresponding path program 105 times [2022-02-09 04:01:27,170 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:01:27,170 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819179009] [2022-02-09 04:01:27,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:01:27,170 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:01:27,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:01:27,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:01:27,384 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:01:27,384 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819179009] [2022-02-09 04:01:27,384 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819179009] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:01:27,384 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:01:27,384 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-09 04:01:27,384 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914020080] [2022-02-09 04:01:27,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:01:27,384 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-02-09 04:01:27,384 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:01:27,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-02-09 04:01:27,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2022-02-09 04:01:27,397 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) [2022-02-09 04:01:28,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:01:28,753 INFO L93 Difference]: Finished difference Result 4191 states and 13951 transitions. [2022-02-09 04:01:28,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-02-09 04:01:28,753 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 [2022-02-09 04:01:28,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:01:28,762 INFO L225 Difference]: With dead ends: 4191 [2022-02-09 04:01:28,762 INFO L226 Difference]: Without dead ends: 4061 [2022-02-09 04:01:28,763 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 [2022-02-09 04:01:28,763 INFO L933 BasicCegarLoop]: 134 mSDtfsCounter, 278 mSDsluCounter, 1294 mSDsCounter, 0 mSdLazyCounter, 1939 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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 [2022-02-09 04:01:28,763 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] [2022-02-09 04:01:28,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4061 states. [2022-02-09 04:01:28,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4061 to 3634. [2022-02-09 04:01:28,815 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) [2022-02-09 04:01:28,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3634 states to 3634 states and 12183 transitions. [2022-02-09 04:01:28,823 INFO L78 Accepts]: Start accepts. Automaton has 3634 states and 12183 transitions. Word has length 39 [2022-02-09 04:01:28,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:01:28,824 INFO L470 AbstractCegarLoop]: Abstraction has 3634 states and 12183 transitions. [2022-02-09 04:01:28,824 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) [2022-02-09 04:01:28,824 INFO L276 IsEmpty]: Start isEmpty. Operand 3634 states and 12183 transitions. [2022-02-09 04:01:28,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:01:28,829 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:01:28,829 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:01:28,830 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2022-02-09 04:01:28,830 INFO L402 AbstractCegarLoop]: === Iteration 106 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:01:28,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:01:28,830 INFO L85 PathProgramCache]: Analyzing trace with hash -244993434, now seen corresponding path program 106 times [2022-02-09 04:01:28,830 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:01:28,830 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667906619] [2022-02-09 04:01:28,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:01:28,830 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:01:28,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:01:29,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:01:29,043 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:01:29,043 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667906619] [2022-02-09 04:01:29,043 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667906619] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:01:29,043 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:01:29,043 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:01:29,043 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889248562] [2022-02-09 04:01:29,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:01:29,043 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:01:29,043 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:01:29,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:01:29,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:01:29,044 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) [2022-02-09 04:01:30,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:01:30,326 INFO L93 Difference]: Finished difference Result 4175 states and 13901 transitions. [2022-02-09 04:01:30,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-02-09 04:01:30,327 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 [2022-02-09 04:01:30,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:01:30,336 INFO L225 Difference]: With dead ends: 4175 [2022-02-09 04:01:30,336 INFO L226 Difference]: Without dead ends: 4108 [2022-02-09 04:01:30,337 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 [2022-02-09 04:01:30,337 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 [2022-02-09 04:01:30,337 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] [2022-02-09 04:01:30,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4108 states. [2022-02-09 04:01:30,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4108 to 3650. [2022-02-09 04:01:30,405 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) [2022-02-09 04:01:30,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3650 states to 3650 states and 12223 transitions. [2022-02-09 04:01:30,413 INFO L78 Accepts]: Start accepts. Automaton has 3650 states and 12223 transitions. Word has length 39 [2022-02-09 04:01:30,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:01:30,413 INFO L470 AbstractCegarLoop]: Abstraction has 3650 states and 12223 transitions. [2022-02-09 04:01:30,413 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) [2022-02-09 04:01:30,413 INFO L276 IsEmpty]: Start isEmpty. Operand 3650 states and 12223 transitions. [2022-02-09 04:01:30,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:01:30,419 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:01:30,419 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] [2022-02-09 04:01:30,419 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2022-02-09 04:01:30,419 INFO L402 AbstractCegarLoop]: === Iteration 107 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:01:30,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:01:30,419 INFO L85 PathProgramCache]: Analyzing trace with hash -1964609404, now seen corresponding path program 107 times [2022-02-09 04:01:30,419 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:01:30,419 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830871190] [2022-02-09 04:01:30,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:01:30,420 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:01:30,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:01:30,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:01:30,658 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:01:30,658 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830871190] [2022-02-09 04:01:30,658 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830871190] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:01:30,658 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:01:30,658 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:01:30,658 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318132814] [2022-02-09 04:01:30,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:01:30,658 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:01:30,658 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:01:30,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:01:30,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:01:30,658 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) [2022-02-09 04:01:32,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:01:32,319 INFO L93 Difference]: Finished difference Result 4312 states and 14258 transitions. [2022-02-09 04:01:32,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-02-09 04:01:32,320 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 [2022-02-09 04:01:32,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:01:32,329 INFO L225 Difference]: With dead ends: 4312 [2022-02-09 04:01:32,329 INFO L226 Difference]: Without dead ends: 4269 [2022-02-09 04:01:32,330 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 [2022-02-09 04:01:32,330 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 [2022-02-09 04:01:32,330 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] [2022-02-09 04:01:32,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4269 states. [2022-02-09 04:01:32,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4269 to 3656. [2022-02-09 04:01:32,375 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) [2022-02-09 04:01:32,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3656 states to 3656 states and 12236 transitions. [2022-02-09 04:01:32,382 INFO L78 Accepts]: Start accepts. Automaton has 3656 states and 12236 transitions. Word has length 39 [2022-02-09 04:01:32,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:01:32,383 INFO L470 AbstractCegarLoop]: Abstraction has 3656 states and 12236 transitions. [2022-02-09 04:01:32,383 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) [2022-02-09 04:01:32,383 INFO L276 IsEmpty]: Start isEmpty. Operand 3656 states and 12236 transitions. [2022-02-09 04:01:32,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:01:32,388 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:01:32,388 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:01:32,388 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2022-02-09 04:01:32,388 INFO L402 AbstractCegarLoop]: === Iteration 108 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:01:32,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:01:32,389 INFO L85 PathProgramCache]: Analyzing trace with hash 549759590, now seen corresponding path program 108 times [2022-02-09 04:01:32,389 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:01:32,389 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35451493] [2022-02-09 04:01:32,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:01:32,389 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:01:32,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:01:32,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:01:32,606 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:01:32,606 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35451493] [2022-02-09 04:01:32,606 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35451493] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:01:32,606 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:01:32,606 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:01:32,606 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500611149] [2022-02-09 04:01:32,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:01:32,607 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:01:32,607 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:01:32,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:01:32,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:01:32,607 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) [2022-02-09 04:01:34,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:01:34,185 INFO L93 Difference]: Finished difference Result 4243 states and 14078 transitions. [2022-02-09 04:01:34,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-02-09 04:01:34,185 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 [2022-02-09 04:01:34,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:01:34,195 INFO L225 Difference]: With dead ends: 4243 [2022-02-09 04:01:34,195 INFO L226 Difference]: Without dead ends: 4179 [2022-02-09 04:01:34,195 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 908 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=325, Invalid=3215, Unknown=0, NotChecked=0, Total=3540 [2022-02-09 04:01:34,196 INFO L933 BasicCegarLoop]: 124 mSDtfsCounter, 320 mSDsluCounter, 1382 mSDsCounter, 0 mSdLazyCounter, 1973 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.7s IncrementalHoareTripleChecker+Time [2022-02-09 04:01:34,196 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [320 Valid, 1185 Invalid, 2037 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 1973 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-09 04:01:34,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4179 states. [2022-02-09 04:01:34,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4179 to 3638. [2022-02-09 04:01:34,245 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) [2022-02-09 04:01:34,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3638 states to 3638 states and 12193 transitions. [2022-02-09 04:01:34,253 INFO L78 Accepts]: Start accepts. Automaton has 3638 states and 12193 transitions. Word has length 39 [2022-02-09 04:01:34,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:01:34,253 INFO L470 AbstractCegarLoop]: Abstraction has 3638 states and 12193 transitions. [2022-02-09 04:01:34,253 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) [2022-02-09 04:01:34,253 INFO L276 IsEmpty]: Start isEmpty. Operand 3638 states and 12193 transitions. [2022-02-09 04:01:34,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:01:34,259 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:01:34,259 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:01:34,259 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2022-02-09 04:01:34,259 INFO L402 AbstractCegarLoop]: === Iteration 109 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:01:34,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:01:34,259 INFO L85 PathProgramCache]: Analyzing trace with hash 1170193990, now seen corresponding path program 109 times [2022-02-09 04:01:34,259 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:01:34,259 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882469191] [2022-02-09 04:01:34,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:01:34,259 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:01:34,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:01:34,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:01:34,492 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:01:34,492 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882469191] [2022-02-09 04:01:34,492 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882469191] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:01:34,492 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:01:34,492 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:01:34,492 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872416557] [2022-02-09 04:01:34,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:01:34,492 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:01:34,492 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:01:34,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:01:34,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:01:34,492 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) [2022-02-09 04:01:35,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:01:35,605 INFO L93 Difference]: Finished difference Result 4061 states and 13536 transitions. [2022-02-09 04:01:35,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-02-09 04:01:35,605 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 [2022-02-09 04:01:35,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:01:35,614 INFO L225 Difference]: With dead ends: 4061 [2022-02-09 04:01:35,614 INFO L226 Difference]: Without dead ends: 3994 [2022-02-09 04:01:35,614 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 417 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=213, Invalid=1857, Unknown=0, NotChecked=0, Total=2070 [2022-02-09 04:01:35,614 INFO L933 BasicCegarLoop]: 107 mSDtfsCounter, 217 mSDsluCounter, 1160 mSDsCounter, 0 mSdLazyCounter, 1605 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 04:01:35,615 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [217 Valid, 962 Invalid, 1647 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 1605 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 04:01:35,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3994 states. [2022-02-09 04:01:35,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3994 to 3646. [2022-02-09 04:01:35,660 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) [2022-02-09 04:01:35,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3646 states to 3646 states and 12209 transitions. [2022-02-09 04:01:35,667 INFO L78 Accepts]: Start accepts. Automaton has 3646 states and 12209 transitions. Word has length 39 [2022-02-09 04:01:35,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:01:35,667 INFO L470 AbstractCegarLoop]: Abstraction has 3646 states and 12209 transitions. [2022-02-09 04:01:35,667 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) [2022-02-09 04:01:35,667 INFO L276 IsEmpty]: Start isEmpty. Operand 3646 states and 12209 transitions. [2022-02-09 04:01:35,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:01:35,672 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:01:35,672 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:01:35,672 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2022-02-09 04:01:35,672 INFO L402 AbstractCegarLoop]: === Iteration 110 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:01:35,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:01:35,673 INFO L85 PathProgramCache]: Analyzing trace with hash 1039599142, now seen corresponding path program 110 times [2022-02-09 04:01:35,673 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:01:35,673 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752862681] [2022-02-09 04:01:35,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:01:35,673 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:01:35,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:01:35,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:01:35,909 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:01:35,909 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752862681] [2022-02-09 04:01:35,909 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752862681] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:01:35,909 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:01:35,909 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:01:35,909 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145674745] [2022-02-09 04:01:35,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:01:35,909 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:01:35,909 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:01:35,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:01:35,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:01:35,910 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) [2022-02-09 04:01:37,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:01:37,004 INFO L93 Difference]: Finished difference Result 4049 states and 13496 transitions. [2022-02-09 04:01:37,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-09 04:01:37,004 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 [2022-02-09 04:01:37,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:01:37,013 INFO L225 Difference]: With dead ends: 4049 [2022-02-09 04:01:37,013 INFO L226 Difference]: Without dead ends: 3986 [2022-02-09 04:01:37,013 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 [2022-02-09 04:01:37,013 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 [2022-02-09 04:01:37,013 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] [2022-02-09 04:01:37,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3986 states. [2022-02-09 04:01:37,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3986 to 3638. [2022-02-09 04:01:37,054 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) [2022-02-09 04:01:37,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3638 states to 3638 states and 12189 transitions. [2022-02-09 04:01:37,060 INFO L78 Accepts]: Start accepts. Automaton has 3638 states and 12189 transitions. Word has length 39 [2022-02-09 04:01:37,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:01:37,061 INFO L470 AbstractCegarLoop]: Abstraction has 3638 states and 12189 transitions. [2022-02-09 04:01:37,061 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) [2022-02-09 04:01:37,061 INFO L276 IsEmpty]: Start isEmpty. Operand 3638 states and 12189 transitions. [2022-02-09 04:01:37,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:01:37,066 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:01:37,066 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:01:37,066 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2022-02-09 04:01:37,066 INFO L402 AbstractCegarLoop]: === Iteration 111 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:01:37,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:01:37,066 INFO L85 PathProgramCache]: Analyzing trace with hash 903920550, now seen corresponding path program 111 times [2022-02-09 04:01:37,066 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:01:37,066 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221370249] [2022-02-09 04:01:37,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:01:37,066 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:01:37,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:01:37,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:01:37,278 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:01:37,278 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221370249] [2022-02-09 04:01:37,278 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221370249] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:01:37,278 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:01:37,278 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:01:37,278 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923462838] [2022-02-09 04:01:37,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:01:37,278 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:01:37,278 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:01:37,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:01:37,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:01:37,279 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) [2022-02-09 04:01:38,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:01:38,814 INFO L93 Difference]: Finished difference Result 4183 states and 13831 transitions. [2022-02-09 04:01:38,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-02-09 04:01:38,814 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 [2022-02-09 04:01:38,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:01:38,823 INFO L225 Difference]: With dead ends: 4183 [2022-02-09 04:01:38,823 INFO L226 Difference]: Without dead ends: 4140 [2022-02-09 04:01:38,824 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 826 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=311, Invalid=2995, Unknown=0, NotChecked=0, Total=3306 [2022-02-09 04:01:38,824 INFO L933 BasicCegarLoop]: 108 mSDtfsCounter, 310 mSDsluCounter, 1224 mSDsCounter, 0 mSdLazyCounter, 1822 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.7s IncrementalHoareTripleChecker+Time [2022-02-09 04:01:38,824 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [310 Valid, 1005 Invalid, 1884 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 1822 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-09 04:01:38,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4140 states. [2022-02-09 04:01:38,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4140 to 3646. [2022-02-09 04:01:38,872 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) [2022-02-09 04:01:38,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3646 states to 3646 states and 12209 transitions. [2022-02-09 04:01:38,907 INFO L78 Accepts]: Start accepts. Automaton has 3646 states and 12209 transitions. Word has length 39 [2022-02-09 04:01:38,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:01:38,907 INFO L470 AbstractCegarLoop]: Abstraction has 3646 states and 12209 transitions. [2022-02-09 04:01:38,907 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) [2022-02-09 04:01:38,907 INFO L276 IsEmpty]: Start isEmpty. Operand 3646 states and 12209 transitions. [2022-02-09 04:01:38,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:01:38,912 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:01:38,912 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:01:38,912 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2022-02-09 04:01:38,912 INFO L402 AbstractCegarLoop]: === Iteration 112 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:01:38,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:01:38,912 INFO L85 PathProgramCache]: Analyzing trace with hash -876677752, now seen corresponding path program 112 times [2022-02-09 04:01:38,913 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:01:38,913 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289222134] [2022-02-09 04:01:38,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:01:38,913 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:01:38,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:01:39,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:01:39,133 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:01:39,133 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289222134] [2022-02-09 04:01:39,133 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289222134] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:01:39,133 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:01:39,133 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:01:39,133 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147053706] [2022-02-09 04:01:39,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:01:39,133 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:01:39,133 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:01:39,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:01:39,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:01:39,134 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) [2022-02-09 04:01:40,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:01:40,546 INFO L93 Difference]: Finished difference Result 4171 states and 13793 transitions. [2022-02-09 04:01:40,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-02-09 04:01:40,546 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 [2022-02-09 04:01:40,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:01:40,555 INFO L225 Difference]: With dead ends: 4171 [2022-02-09 04:01:40,555 INFO L226 Difference]: Without dead ends: 4119 [2022-02-09 04:01:40,556 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 [2022-02-09 04:01:40,556 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 [2022-02-09 04:01:40,556 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] [2022-02-09 04:01:40,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4119 states. [2022-02-09 04:01:40,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4119 to 3638. [2022-02-09 04:01:40,605 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) [2022-02-09 04:01:40,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3638 states to 3638 states and 12189 transitions. [2022-02-09 04:01:40,613 INFO L78 Accepts]: Start accepts. Automaton has 3638 states and 12189 transitions. Word has length 39 [2022-02-09 04:01:40,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:01:40,613 INFO L470 AbstractCegarLoop]: Abstraction has 3638 states and 12189 transitions. [2022-02-09 04:01:40,613 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) [2022-02-09 04:01:40,613 INFO L276 IsEmpty]: Start isEmpty. Operand 3638 states and 12189 transitions. [2022-02-09 04:01:40,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:01:40,618 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:01:40,618 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] [2022-02-09 04:01:40,618 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2022-02-09 04:01:40,618 INFO L402 AbstractCegarLoop]: === Iteration 113 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:01:40,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:01:40,618 INFO L85 PathProgramCache]: Analyzing trace with hash 1822404120, now seen corresponding path program 113 times [2022-02-09 04:01:40,618 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:01:40,619 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784887294] [2022-02-09 04:01:40,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:01:40,619 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:01:40,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:01:40,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:01:40,856 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:01:40,856 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784887294] [2022-02-09 04:01:40,857 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784887294] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:01:40,857 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:01:40,857 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:01:40,857 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839911175] [2022-02-09 04:01:40,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:01:40,857 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:01:40,857 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:01:40,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:01:40,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:01:40,857 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) [2022-02-09 04:01:42,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:01:42,040 INFO L93 Difference]: Finished difference Result 4136 states and 13684 transitions. [2022-02-09 04:01:42,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-02-09 04:01:42,040 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 [2022-02-09 04:01:42,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:01:42,049 INFO L225 Difference]: With dead ends: 4136 [2022-02-09 04:01:42,049 INFO L226 Difference]: Without dead ends: 4081 [2022-02-09 04:01:42,049 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 510 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=239, Invalid=2113, Unknown=0, NotChecked=0, Total=2352 [2022-02-09 04:01:42,049 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 04:01:42,049 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [260 Valid, 965 Invalid, 1692 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 1646 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 04:01:42,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4081 states. [2022-02-09 04:01:42,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4081 to 3640. [2022-02-09 04:01:42,097 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) [2022-02-09 04:01:42,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3640 states to 3640 states and 12192 transitions. [2022-02-09 04:01:42,106 INFO L78 Accepts]: Start accepts. Automaton has 3640 states and 12192 transitions. Word has length 39 [2022-02-09 04:01:42,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:01:42,106 INFO L470 AbstractCegarLoop]: Abstraction has 3640 states and 12192 transitions. [2022-02-09 04:01:42,107 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) [2022-02-09 04:01:42,107 INFO L276 IsEmpty]: Start isEmpty. Operand 3640 states and 12192 transitions. [2022-02-09 04:01:42,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:01:42,112 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:01:42,112 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:01:42,112 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2022-02-09 04:01:42,112 INFO L402 AbstractCegarLoop]: === Iteration 114 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:01:42,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:01:42,113 INFO L85 PathProgramCache]: Analyzing trace with hash -1299910954, now seen corresponding path program 114 times [2022-02-09 04:01:42,113 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:01:42,113 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77483494] [2022-02-09 04:01:42,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:01:42,113 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:01:42,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:01:42,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:01:42,327 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:01:42,327 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77483494] [2022-02-09 04:01:42,327 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77483494] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:01:42,327 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:01:42,327 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:01:42,327 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604426125] [2022-02-09 04:01:42,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:01:42,327 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:01:42,327 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:01:42,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:01:42,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:01:42,328 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) [2022-02-09 04:01:43,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:01:43,451 INFO L93 Difference]: Finished difference Result 4046 states and 13486 transitions. [2022-02-09 04:01:43,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-09 04:01:43,451 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 [2022-02-09 04:01:43,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:01:43,459 INFO L225 Difference]: With dead ends: 4046 [2022-02-09 04:01:43,459 INFO L226 Difference]: Without dead ends: 3982 [2022-02-09 04:01:43,459 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 444 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=224, Invalid=1938, Unknown=0, NotChecked=0, Total=2162 [2022-02-09 04:01:43,460 INFO L933 BasicCegarLoop]: 106 mSDtfsCounter, 224 mSDsluCounter, 1177 mSDsCounter, 0 mSdLazyCounter, 1597 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 04:01:43,460 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [224 Valid, 970 Invalid, 1638 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1597 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 04:01:43,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3982 states. [2022-02-09 04:01:43,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3982 to 3634. [2022-02-09 04:01:43,500 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) [2022-02-09 04:01:43,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3634 states to 3634 states and 12179 transitions. [2022-02-09 04:01:43,507 INFO L78 Accepts]: Start accepts. Automaton has 3634 states and 12179 transitions. Word has length 39 [2022-02-09 04:01:43,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:01:43,507 INFO L470 AbstractCegarLoop]: Abstraction has 3634 states and 12179 transitions. [2022-02-09 04:01:43,507 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) [2022-02-09 04:01:43,507 INFO L276 IsEmpty]: Start isEmpty. Operand 3634 states and 12179 transitions. [2022-02-09 04:01:43,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:01:43,513 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:01:43,513 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:01:43,513 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2022-02-09 04:01:43,513 INFO L402 AbstractCegarLoop]: === Iteration 115 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:01:43,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:01:43,513 INFO L85 PathProgramCache]: Analyzing trace with hash 942137368, now seen corresponding path program 115 times [2022-02-09 04:01:43,513 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:01:43,513 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869831651] [2022-02-09 04:01:43,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:01:43,513 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:01:43,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:01:43,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:01:43,744 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:01:43,744 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869831651] [2022-02-09 04:01:43,744 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869831651] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:01:43,744 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:01:43,744 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:01:43,744 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392177516] [2022-02-09 04:01:43,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:01:43,744 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:01:43,744 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:01:43,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:01:43,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:01:43,745 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) [2022-02-09 04:01:45,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:01:45,399 INFO L93 Difference]: Finished difference Result 4309 states and 14218 transitions. [2022-02-09 04:01:45,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-02-09 04:01:45,399 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 [2022-02-09 04:01:45,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:01:45,407 INFO L225 Difference]: With dead ends: 4309 [2022-02-09 04:01:45,407 INFO L226 Difference]: Without dead ends: 4172 [2022-02-09 04:01:45,408 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 906 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=314, Invalid=3226, Unknown=0, NotChecked=0, Total=3540 [2022-02-09 04:01:45,408 INFO L933 BasicCegarLoop]: 146 mSDtfsCounter, 331 mSDsluCounter, 1569 mSDsCounter, 0 mSdLazyCounter, 2227 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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, 0.8s IncrementalHoareTripleChecker+Time [2022-02-09 04:01:45,408 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [331 Valid, 1315 Invalid, 2283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 2227 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-09 04:01:45,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4172 states. [2022-02-09 04:01:45,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4172 to 3638. [2022-02-09 04:01:45,448 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) [2022-02-09 04:01:45,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3638 states to 3638 states and 12189 transitions. [2022-02-09 04:01:45,455 INFO L78 Accepts]: Start accepts. Automaton has 3638 states and 12189 transitions. Word has length 39 [2022-02-09 04:01:45,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:01:45,455 INFO L470 AbstractCegarLoop]: Abstraction has 3638 states and 12189 transitions. [2022-02-09 04:01:45,455 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) [2022-02-09 04:01:45,455 INFO L276 IsEmpty]: Start isEmpty. Operand 3638 states and 12189 transitions. [2022-02-09 04:01:45,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:01:45,460 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:01:45,460 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:01:45,460 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2022-02-09 04:01:45,460 INFO L402 AbstractCegarLoop]: === Iteration 116 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:01:45,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:01:45,461 INFO L85 PathProgramCache]: Analyzing trace with hash -552753532, now seen corresponding path program 116 times [2022-02-09 04:01:45,461 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:01:45,461 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50598247] [2022-02-09 04:01:45,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:01:45,461 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:01:45,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:01:45,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:01:45,683 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:01:45,683 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50598247] [2022-02-09 04:01:45,683 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50598247] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:01:45,683 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:01:45,683 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:01:45,683 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759180451] [2022-02-09 04:01:45,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:01:45,683 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:01:45,683 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:01:45,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:01:45,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:01:45,684 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) [2022-02-09 04:01:47,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:01:47,165 INFO L93 Difference]: Finished difference Result 4287 states and 14084 transitions. [2022-02-09 04:01:47,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-02-09 04:01:47,165 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 [2022-02-09 04:01:47,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:01:47,174 INFO L225 Difference]: With dead ends: 4287 [2022-02-09 04:01:47,174 INFO L226 Difference]: Without dead ends: 4223 [2022-02-09 04:01:47,174 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 787 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=297, Invalid=2895, Unknown=0, NotChecked=0, Total=3192 [2022-02-09 04:01:47,174 INFO L933 BasicCegarLoop]: 110 mSDtfsCounter, 311 mSDsluCounter, 1292 mSDsCounter, 0 mSdLazyCounter, 1895 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.7s IncrementalHoareTripleChecker+Time [2022-02-09 04:01:47,174 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [311 Valid, 1040 Invalid, 1954 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 1895 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-09 04:01:47,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4223 states. [2022-02-09 04:01:47,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4223 to 3638. [2022-02-09 04:01:47,217 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) [2022-02-09 04:01:47,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3638 states to 3638 states and 12189 transitions. [2022-02-09 04:01:47,224 INFO L78 Accepts]: Start accepts. Automaton has 3638 states and 12189 transitions. Word has length 39 [2022-02-09 04:01:47,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:01:47,224 INFO L470 AbstractCegarLoop]: Abstraction has 3638 states and 12189 transitions. [2022-02-09 04:01:47,224 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) [2022-02-09 04:01:47,224 INFO L276 IsEmpty]: Start isEmpty. Operand 3638 states and 12189 transitions. [2022-02-09 04:01:47,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:01:47,229 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:01:47,229 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:01:47,229 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2022-02-09 04:01:47,229 INFO L402 AbstractCegarLoop]: === Iteration 117 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:01:47,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:01:47,229 INFO L85 PathProgramCache]: Analyzing trace with hash 365730038, now seen corresponding path program 117 times [2022-02-09 04:01:47,229 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:01:47,229 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423007011] [2022-02-09 04:01:47,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:01:47,230 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:01:47,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:01:47,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:01:47,457 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:01:47,457 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423007011] [2022-02-09 04:01:47,457 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423007011] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:01:47,457 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:01:47,457 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:01:47,457 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379713855] [2022-02-09 04:01:47,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:01:47,457 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:01:47,457 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:01:47,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:01:47,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:01:47,458 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) [2022-02-09 04:01:48,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:01:48,576 INFO L93 Difference]: Finished difference Result 4192 states and 13832 transitions. [2022-02-09 04:01:48,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-02-09 04:01:48,576 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 [2022-02-09 04:01:48,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:01:48,585 INFO L225 Difference]: With dead ends: 4192 [2022-02-09 04:01:48,585 INFO L226 Difference]: Without dead ends: 4137 [2022-02-09 04:01:48,586 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 477 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=221, Invalid=2035, Unknown=0, NotChecked=0, Total=2256 [2022-02-09 04:01:48,586 INFO L933 BasicCegarLoop]: 112 mSDtfsCounter, 261 mSDsluCounter, 1323 mSDsCounter, 0 mSdLazyCounter, 1764 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 04:01:48,586 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [261 Valid, 1035 Invalid, 1806 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 1764 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 04:01:48,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4137 states. [2022-02-09 04:01:48,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4137 to 3640. [2022-02-09 04:01:48,638 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) [2022-02-09 04:01:48,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3640 states to 3640 states and 12192 transitions. [2022-02-09 04:01:48,647 INFO L78 Accepts]: Start accepts. Automaton has 3640 states and 12192 transitions. Word has length 39 [2022-02-09 04:01:48,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:01:48,647 INFO L470 AbstractCegarLoop]: Abstraction has 3640 states and 12192 transitions. [2022-02-09 04:01:48,647 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) [2022-02-09 04:01:48,647 INFO L276 IsEmpty]: Start isEmpty. Operand 3640 states and 12192 transitions. [2022-02-09 04:01:48,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:01:48,653 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:01:48,653 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:01:48,653 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2022-02-09 04:01:48,653 INFO L402 AbstractCegarLoop]: === Iteration 118 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:01:48,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:01:48,653 INFO L85 PathProgramCache]: Analyzing trace with hash 1538382260, now seen corresponding path program 118 times [2022-02-09 04:01:48,653 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:01:48,654 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104598426] [2022-02-09 04:01:48,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:01:48,654 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:01:48,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:01:48,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:01:48,864 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:01:48,865 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104598426] [2022-02-09 04:01:48,865 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104598426] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:01:48,865 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:01:48,865 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:01:48,865 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740867035] [2022-02-09 04:01:48,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:01:48,865 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:01:48,865 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:01:48,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:01:48,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:01:48,865 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) [2022-02-09 04:01:49,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:01:49,992 INFO L93 Difference]: Finished difference Result 4162 states and 13771 transitions. [2022-02-09 04:01:49,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-02-09 04:01:49,993 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 [2022-02-09 04:01:49,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:01:50,002 INFO L225 Difference]: With dead ends: 4162 [2022-02-09 04:01:50,002 INFO L226 Difference]: Without dead ends: 4102 [2022-02-09 04:01:50,002 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 [2022-02-09 04:01:50,003 INFO L933 BasicCegarLoop]: 106 mSDtfsCounter, 271 mSDsluCounter, 1220 mSDsCounter, 0 mSdLazyCounter, 1658 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 04:01:50,003 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [271 Valid, 977 Invalid, 1703 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 1658 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 04:01:50,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4102 states. [2022-02-09 04:01:50,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4102 to 3638. [2022-02-09 04:01:50,054 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) [2022-02-09 04:01:50,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3638 states to 3638 states and 12187 transitions. [2022-02-09 04:01:50,089 INFO L78 Accepts]: Start accepts. Automaton has 3638 states and 12187 transitions. Word has length 39 [2022-02-09 04:01:50,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:01:50,089 INFO L470 AbstractCegarLoop]: Abstraction has 3638 states and 12187 transitions. [2022-02-09 04:01:50,089 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) [2022-02-09 04:01:50,089 INFO L276 IsEmpty]: Start isEmpty. Operand 3638 states and 12187 transitions. [2022-02-09 04:01:50,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:01:50,095 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:01:50,095 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:01:50,095 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2022-02-09 04:01:50,095 INFO L402 AbstractCegarLoop]: === Iteration 119 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:01:50,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:01:50,095 INFO L85 PathProgramCache]: Analyzing trace with hash -541184282, now seen corresponding path program 119 times [2022-02-09 04:01:50,095 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:01:50,095 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614020171] [2022-02-09 04:01:50,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:01:50,095 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:01:50,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:01:50,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:01:50,306 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:01:50,306 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614020171] [2022-02-09 04:01:50,307 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614020171] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:01:50,307 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:01:50,307 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-09 04:01:50,307 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517591228] [2022-02-09 04:01:50,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:01:50,307 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-02-09 04:01:50,307 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:01:50,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-02-09 04:01:50,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2022-02-09 04:01:50,307 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) [2022-02-09 04:01:51,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:01:51,312 INFO L93 Difference]: Finished difference Result 4073 states and 13558 transitions. [2022-02-09 04:01:51,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-09 04:01:51,313 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 [2022-02-09 04:01:51,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:01:51,322 INFO L225 Difference]: With dead ends: 4073 [2022-02-09 04:01:51,322 INFO L226 Difference]: Without dead ends: 3997 [2022-02-09 04:01:51,322 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 390 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=199, Invalid=1693, Unknown=0, NotChecked=0, Total=1892 [2022-02-09 04:01:51,322 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 [2022-02-09 04:01:51,323 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] [2022-02-09 04:01:51,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3997 states. [2022-02-09 04:01:51,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3997 to 3646. [2022-02-09 04:01:51,373 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) [2022-02-09 04:01:51,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3646 states to 3646 states and 12203 transitions. [2022-02-09 04:01:51,381 INFO L78 Accepts]: Start accepts. Automaton has 3646 states and 12203 transitions. Word has length 39 [2022-02-09 04:01:51,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:01:51,381 INFO L470 AbstractCegarLoop]: Abstraction has 3646 states and 12203 transitions. [2022-02-09 04:01:51,381 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) [2022-02-09 04:01:51,381 INFO L276 IsEmpty]: Start isEmpty. Operand 3646 states and 12203 transitions. [2022-02-09 04:01:51,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:01:51,387 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:01:51,387 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:01:51,387 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2022-02-09 04:01:51,387 INFO L402 AbstractCegarLoop]: === Iteration 120 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:01:51,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:01:51,388 INFO L85 PathProgramCache]: Analyzing trace with hash -1559237894, now seen corresponding path program 120 times [2022-02-09 04:01:51,388 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:01:51,388 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779117081] [2022-02-09 04:01:51,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:01:51,388 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:01:51,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:01:51,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:01:51,608 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:01:51,608 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779117081] [2022-02-09 04:01:51,608 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779117081] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:01:51,608 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:01:51,608 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:01:51,608 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381486222] [2022-02-09 04:01:51,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:01:51,609 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:01:51,609 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:01:51,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:01:51,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:01:51,609 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) [2022-02-09 04:01:52,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:01:52,669 INFO L93 Difference]: Finished difference Result 4055 states and 13504 transitions. [2022-02-09 04:01:52,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-09 04:01:52,670 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 [2022-02-09 04:01:52,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:01:52,678 INFO L225 Difference]: With dead ends: 4055 [2022-02-09 04:01:52,678 INFO L226 Difference]: Without dead ends: 3977 [2022-02-09 04:01:52,678 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 447 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=215, Invalid=1947, Unknown=0, NotChecked=0, Total=2162 [2022-02-09 04:01:52,679 INFO L933 BasicCegarLoop]: 107 mSDtfsCounter, 255 mSDsluCounter, 1183 mSDsCounter, 0 mSdLazyCounter, 1600 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.5s IncrementalHoareTripleChecker+Time [2022-02-09 04:01:52,679 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [255 Valid, 976 Invalid, 1644 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 1600 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-09 04:01:52,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3977 states. [2022-02-09 04:01:52,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3977 to 3626. [2022-02-09 04:01:52,741 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) [2022-02-09 04:01:52,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3626 states to 3626 states and 12155 transitions. [2022-02-09 04:01:52,749 INFO L78 Accepts]: Start accepts. Automaton has 3626 states and 12155 transitions. Word has length 39 [2022-02-09 04:01:52,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:01:52,749 INFO L470 AbstractCegarLoop]: Abstraction has 3626 states and 12155 transitions. [2022-02-09 04:01:52,749 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) [2022-02-09 04:01:52,749 INFO L276 IsEmpty]: Start isEmpty. Operand 3626 states and 12155 transitions. [2022-02-09 04:01:52,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:01:52,754 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:01:52,754 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] [2022-02-09 04:01:52,754 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2022-02-09 04:01:52,754 INFO L402 AbstractCegarLoop]: === Iteration 121 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:01:52,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:01:52,755 INFO L85 PathProgramCache]: Analyzing trace with hash 324873820, now seen corresponding path program 121 times [2022-02-09 04:01:52,755 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:01:52,755 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725141103] [2022-02-09 04:01:52,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:01:52,755 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:01:52,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:01:52,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:01:52,998 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:01:52,998 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725141103] [2022-02-09 04:01:52,998 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725141103] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:01:52,998 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:01:52,999 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:01:52,999 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512286835] [2022-02-09 04:01:52,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:01:52,999 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:01:52,999 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:01:52,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:01:52,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:01:52,999 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) [2022-02-09 04:01:54,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:01:54,199 INFO L93 Difference]: Finished difference Result 4269 states and 14190 transitions. [2022-02-09 04:01:54,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-02-09 04:01:54,200 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 [2022-02-09 04:01:54,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:01:54,209 INFO L225 Difference]: With dead ends: 4269 [2022-02-09 04:01:54,209 INFO L226 Difference]: Without dead ends: 4202 [2022-02-09 04:01:54,209 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 532 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=243, Invalid=2207, Unknown=0, NotChecked=0, Total=2450 [2022-02-09 04:01:54,210 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 [2022-02-09 04:01:54,210 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] [2022-02-09 04:01:54,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4202 states. [2022-02-09 04:01:54,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4202 to 3658. [2022-02-09 04:01:54,263 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) [2022-02-09 04:01:54,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3658 states to 3658 states and 12243 transitions. [2022-02-09 04:01:54,272 INFO L78 Accepts]: Start accepts. Automaton has 3658 states and 12243 transitions. Word has length 39 [2022-02-09 04:01:54,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:01:54,272 INFO L470 AbstractCegarLoop]: Abstraction has 3658 states and 12243 transitions. [2022-02-09 04:01:54,272 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) [2022-02-09 04:01:54,272 INFO L276 IsEmpty]: Start isEmpty. Operand 3658 states and 12243 transitions. [2022-02-09 04:01:54,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:01:54,278 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:01:54,278 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:01:54,278 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2022-02-09 04:01:54,278 INFO L402 AbstractCegarLoop]: === Iteration 122 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:01:54,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:01:54,278 INFO L85 PathProgramCache]: Analyzing trace with hash -1394742150, now seen corresponding path program 122 times [2022-02-09 04:01:54,278 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:01:54,278 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106351007] [2022-02-09 04:01:54,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:01:54,278 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:01:54,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:01:54,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:01:54,497 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:01:54,497 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106351007] [2022-02-09 04:01:54,497 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106351007] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:01:54,497 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:01:54,497 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:01:54,497 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662615485] [2022-02-09 04:01:54,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:01:54,497 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:01:54,497 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:01:54,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:01:54,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:01:54,498 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) [2022-02-09 04:01:56,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:01:56,085 INFO L93 Difference]: Finished difference Result 4406 states and 14547 transitions. [2022-02-09 04:01:56,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-02-09 04:01:56,085 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 [2022-02-09 04:01:56,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:01:56,095 INFO L225 Difference]: With dead ends: 4406 [2022-02-09 04:01:56,095 INFO L226 Difference]: Without dead ends: 4363 [2022-02-09 04:01:56,096 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 903 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=323, Invalid=3217, Unknown=0, NotChecked=0, Total=3540 [2022-02-09 04:01:56,096 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, 0.8s IncrementalHoareTripleChecker+Time [2022-02-09 04:01:56,096 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [332 Valid, 1315 Invalid, 2239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 2180 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-09 04:01:56,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4363 states. [2022-02-09 04:01:56,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4363 to 3664. [2022-02-09 04:01:56,149 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) [2022-02-09 04:01:56,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3664 states to 3664 states and 12256 transitions. [2022-02-09 04:01:56,157 INFO L78 Accepts]: Start accepts. Automaton has 3664 states and 12256 transitions. Word has length 39 [2022-02-09 04:01:56,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:01:56,157 INFO L470 AbstractCegarLoop]: Abstraction has 3664 states and 12256 transitions. [2022-02-09 04:01:56,157 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) [2022-02-09 04:01:56,157 INFO L276 IsEmpty]: Start isEmpty. Operand 3664 states and 12256 transitions. [2022-02-09 04:01:56,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:01:56,163 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:01:56,163 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:01:56,163 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2022-02-09 04:01:56,164 INFO L402 AbstractCegarLoop]: === Iteration 123 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:01:56,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:01:56,164 INFO L85 PathProgramCache]: Analyzing trace with hash 1119626844, now seen corresponding path program 123 times [2022-02-09 04:01:56,164 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:01:56,164 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533324023] [2022-02-09 04:01:56,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:01:56,164 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:01:56,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:01:56,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:01:56,375 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:01:56,375 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533324023] [2022-02-09 04:01:56,375 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533324023] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:01:56,375 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:01:56,376 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:01:56,376 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262221844] [2022-02-09 04:01:56,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:01:56,376 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:01:56,377 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:01:56,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:01:56,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:01:56,378 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) [2022-02-09 04:01:57,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:01:57,884 INFO L93 Difference]: Finished difference Result 4337 states and 14367 transitions. [2022-02-09 04:01:57,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-02-09 04:01:57,885 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 [2022-02-09 04:01:57,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:01:57,894 INFO L225 Difference]: With dead ends: 4337 [2022-02-09 04:01:57,894 INFO L226 Difference]: Without dead ends: 4273 [2022-02-09 04:01:57,895 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 820 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=305, Invalid=3001, Unknown=0, NotChecked=0, Total=3306 [2022-02-09 04:01:57,895 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 320 mSDsluCounter, 1467 mSDsCounter, 0 mSdLazyCounter, 2098 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.7s IncrementalHoareTripleChecker+Time [2022-02-09 04:01:57,895 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [320 Valid, 1281 Invalid, 2156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 2098 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-09 04:01:57,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4273 states. [2022-02-09 04:01:57,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4273 to 3646. [2022-02-09 04:01:57,947 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) [2022-02-09 04:01:57,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3646 states to 3646 states and 12213 transitions. [2022-02-09 04:01:57,955 INFO L78 Accepts]: Start accepts. Automaton has 3646 states and 12213 transitions. Word has length 39 [2022-02-09 04:01:57,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:01:57,955 INFO L470 AbstractCegarLoop]: Abstraction has 3646 states and 12213 transitions. [2022-02-09 04:01:57,956 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) [2022-02-09 04:01:57,956 INFO L276 IsEmpty]: Start isEmpty. Operand 3646 states and 12213 transitions. [2022-02-09 04:01:57,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:01:57,961 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:01:57,962 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:01:57,962 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2022-02-09 04:01:57,962 INFO L402 AbstractCegarLoop]: === Iteration 124 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:01:57,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:01:57,962 INFO L85 PathProgramCache]: Analyzing trace with hash 1740061244, now seen corresponding path program 124 times [2022-02-09 04:01:57,962 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:01:57,962 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718313093] [2022-02-09 04:01:57,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:01:57,962 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:01:57,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:01:58,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:01:58,188 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:01:58,188 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718313093] [2022-02-09 04:01:58,188 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718313093] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:01:58,188 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:01:58,188 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:01:58,188 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174690209] [2022-02-09 04:01:58,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:01:58,188 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:01:58,188 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:01:58,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:01:58,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:01:58,189 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) [2022-02-09 04:01:59,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:01:59,228 INFO L93 Difference]: Finished difference Result 4217 states and 14012 transitions. [2022-02-09 04:01:59,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-09 04:01:59,228 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 [2022-02-09 04:01:59,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:01:59,237 INFO L225 Difference]: With dead ends: 4217 [2022-02-09 04:01:59,237 INFO L226 Difference]: Without dead ends: 4150 [2022-02-09 04:01:59,237 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 387 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=203, Invalid=1777, Unknown=0, NotChecked=0, Total=1980 [2022-02-09 04:01:59,238 INFO L933 BasicCegarLoop]: 113 mSDtfsCounter, 231 mSDsluCounter, 1218 mSDsCounter, 0 mSdLazyCounter, 1735 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 04:01:59,238 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [231 Valid, 1032 Invalid, 1774 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1735 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 04:01:59,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4150 states. [2022-02-09 04:01:59,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4150 to 3654. [2022-02-09 04:01:59,288 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) [2022-02-09 04:01:59,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3654 states to 3654 states and 12229 transitions. [2022-02-09 04:01:59,296 INFO L78 Accepts]: Start accepts. Automaton has 3654 states and 12229 transitions. Word has length 39 [2022-02-09 04:01:59,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:01:59,296 INFO L470 AbstractCegarLoop]: Abstraction has 3654 states and 12229 transitions. [2022-02-09 04:01:59,296 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) [2022-02-09 04:01:59,296 INFO L276 IsEmpty]: Start isEmpty. Operand 3654 states and 12229 transitions. [2022-02-09 04:01:59,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:01:59,302 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:01:59,302 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] [2022-02-09 04:01:59,302 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2022-02-09 04:01:59,302 INFO L402 AbstractCegarLoop]: === Iteration 125 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:01:59,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:01:59,303 INFO L85 PathProgramCache]: Analyzing trace with hash 1609466396, now seen corresponding path program 125 times [2022-02-09 04:01:59,303 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:01:59,303 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720013855] [2022-02-09 04:01:59,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:01:59,303 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:01:59,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:01:59,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:01:59,514 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:01:59,514 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720013855] [2022-02-09 04:01:59,514 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720013855] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:01:59,514 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:01:59,514 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:01:59,514 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046854966] [2022-02-09 04:01:59,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:01:59,514 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:01:59,514 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:01:59,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:01:59,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:01:59,515 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) [2022-02-09 04:02:00,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:02:00,605 INFO L93 Difference]: Finished difference Result 4205 states and 13972 transitions. [2022-02-09 04:02:00,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-02-09 04:02:00,605 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 [2022-02-09 04:02:00,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:02:00,614 INFO L225 Difference]: With dead ends: 4205 [2022-02-09 04:02:00,614 INFO L226 Difference]: Without dead ends: 4142 [2022-02-09 04:02:00,614 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 [2022-02-09 04:02:00,615 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 [2022-02-09 04:02:00,615 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] [2022-02-09 04:02:00,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4142 states. [2022-02-09 04:02:00,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4142 to 3646. [2022-02-09 04:02:00,662 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) [2022-02-09 04:02:00,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3646 states to 3646 states and 12209 transitions. [2022-02-09 04:02:00,670 INFO L78 Accepts]: Start accepts. Automaton has 3646 states and 12209 transitions. Word has length 39 [2022-02-09 04:02:00,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:02:00,670 INFO L470 AbstractCegarLoop]: Abstraction has 3646 states and 12209 transitions. [2022-02-09 04:02:00,670 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) [2022-02-09 04:02:00,670 INFO L276 IsEmpty]: Start isEmpty. Operand 3646 states and 12209 transitions. [2022-02-09 04:02:00,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:02:00,688 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:02:00,688 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:02:00,688 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2022-02-09 04:02:00,688 INFO L402 AbstractCegarLoop]: === Iteration 126 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:02:00,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:02:00,689 INFO L85 PathProgramCache]: Analyzing trace with hash 1473787804, now seen corresponding path program 126 times [2022-02-09 04:02:00,689 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:02:00,689 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806341326] [2022-02-09 04:02:00,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:02:00,689 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:02:00,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:02:00,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:02:00,894 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:02:00,894 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806341326] [2022-02-09 04:02:00,894 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806341326] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:02:00,894 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:02:00,894 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:02:00,894 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746619778] [2022-02-09 04:02:00,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:02:00,894 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:02:00,894 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:02:00,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:02:00,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:02:00,894 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) [2022-02-09 04:02:02,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:02:02,297 INFO L93 Difference]: Finished difference Result 4360 states and 14335 transitions. [2022-02-09 04:02:02,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-02-09 04:02:02,297 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 [2022-02-09 04:02:02,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:02:02,307 INFO L225 Difference]: With dead ends: 4360 [2022-02-09 04:02:02,307 INFO L226 Difference]: Without dead ends: 4317 [2022-02-09 04:02:02,307 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 [2022-02-09 04:02:02,307 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 [2022-02-09 04:02:02,308 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] [2022-02-09 04:02:02,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4317 states. [2022-02-09 04:02:02,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4317 to 3654. [2022-02-09 04:02:02,361 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) [2022-02-09 04:02:02,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3654 states to 3654 states and 12229 transitions. [2022-02-09 04:02:02,370 INFO L78 Accepts]: Start accepts. Automaton has 3654 states and 12229 transitions. Word has length 39 [2022-02-09 04:02:02,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:02:02,370 INFO L470 AbstractCegarLoop]: Abstraction has 3654 states and 12229 transitions. [2022-02-09 04:02:02,370 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) [2022-02-09 04:02:02,370 INFO L276 IsEmpty]: Start isEmpty. Operand 3654 states and 12229 transitions. [2022-02-09 04:02:02,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:02:02,376 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:02:02,376 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:02:02,376 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125 [2022-02-09 04:02:02,377 INFO L402 AbstractCegarLoop]: === Iteration 127 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:02:02,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:02:02,377 INFO L85 PathProgramCache]: Analyzing trace with hash -306810498, now seen corresponding path program 127 times [2022-02-09 04:02:02,377 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:02:02,377 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020340849] [2022-02-09 04:02:02,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:02:02,377 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:02:02,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:02:02,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:02:02,594 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:02:02,594 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020340849] [2022-02-09 04:02:02,594 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020340849] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:02:02,594 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:02:02,594 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:02:02,594 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165355966] [2022-02-09 04:02:02,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:02:02,594 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:02:02,594 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:02:02,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:02:02,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:02:02,595 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) [2022-02-09 04:02:04,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:02:04,027 INFO L93 Difference]: Finished difference Result 4348 states and 14297 transitions. [2022-02-09 04:02:04,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-02-09 04:02:04,027 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 [2022-02-09 04:02:04,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:02:04,036 INFO L225 Difference]: With dead ends: 4348 [2022-02-09 04:02:04,036 INFO L226 Difference]: Without dead ends: 4296 [2022-02-09 04:02:04,037 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 706 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=286, Invalid=2684, Unknown=0, NotChecked=0, Total=2970 [2022-02-09 04:02:04,037 INFO L933 BasicCegarLoop]: 113 mSDtfsCounter, 312 mSDsluCounter, 1302 mSDsCounter, 0 mSdLazyCounter, 1912 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.7s IncrementalHoareTripleChecker+Time [2022-02-09 04:02:04,037 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [312 Valid, 1096 Invalid, 1965 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 1912 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-09 04:02:04,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4296 states. [2022-02-09 04:02:04,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4296 to 3646. [2022-02-09 04:02:04,083 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) [2022-02-09 04:02:04,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3646 states to 3646 states and 12209 transitions. [2022-02-09 04:02:04,090 INFO L78 Accepts]: Start accepts. Automaton has 3646 states and 12209 transitions. Word has length 39 [2022-02-09 04:02:04,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:02:04,090 INFO L470 AbstractCegarLoop]: Abstraction has 3646 states and 12209 transitions. [2022-02-09 04:02:04,090 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) [2022-02-09 04:02:04,090 INFO L276 IsEmpty]: Start isEmpty. Operand 3646 states and 12209 transitions. [2022-02-09 04:02:04,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:02:04,096 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:02:04,096 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:02:04,096 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2022-02-09 04:02:04,096 INFO L402 AbstractCegarLoop]: === Iteration 128 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:02:04,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:02:04,096 INFO L85 PathProgramCache]: Analyzing trace with hash -1902695922, now seen corresponding path program 128 times [2022-02-09 04:02:04,096 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:02:04,096 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106282450] [2022-02-09 04:02:04,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:02:04,097 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:02:04,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:02:04,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:02:04,320 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:02:04,320 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106282450] [2022-02-09 04:02:04,320 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106282450] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:02:04,320 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:02:04,320 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:02:04,320 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265276089] [2022-02-09 04:02:04,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:02:04,320 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:02:04,320 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:02:04,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:02:04,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:02:04,323 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) [2022-02-09 04:02:05,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:02:05,479 INFO L93 Difference]: Finished difference Result 4325 states and 14220 transitions. [2022-02-09 04:02:05,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-02-09 04:02:05,480 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 [2022-02-09 04:02:05,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:02:05,489 INFO L225 Difference]: With dead ends: 4325 [2022-02-09 04:02:05,490 INFO L226 Difference]: Without dead ends: 4270 [2022-02-09 04:02:05,491 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 [2022-02-09 04:02:05,492 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 [2022-02-09 04:02:05,493 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] [2022-02-09 04:02:05,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4270 states. [2022-02-09 04:02:05,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4270 to 3648. [2022-02-09 04:02:05,544 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) [2022-02-09 04:02:05,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3648 states to 3648 states and 12212 transitions. [2022-02-09 04:02:05,554 INFO L78 Accepts]: Start accepts. Automaton has 3648 states and 12212 transitions. Word has length 39 [2022-02-09 04:02:05,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:02:05,554 INFO L470 AbstractCegarLoop]: Abstraction has 3648 states and 12212 transitions. [2022-02-09 04:02:05,555 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) [2022-02-09 04:02:05,555 INFO L276 IsEmpty]: Start isEmpty. Operand 3648 states and 12212 transitions. [2022-02-09 04:02:05,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:02:05,561 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:02:05,561 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:02:05,562 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2022-02-09 04:02:05,562 INFO L402 AbstractCegarLoop]: === Iteration 129 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:02:05,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:02:05,562 INFO L85 PathProgramCache]: Analyzing trace with hash -730043700, now seen corresponding path program 129 times [2022-02-09 04:02:05,563 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:02:05,563 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872521142] [2022-02-09 04:02:05,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:02:05,563 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:02:05,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:02:05,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:02:05,799 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:02:05,799 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872521142] [2022-02-09 04:02:05,799 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872521142] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:02:05,799 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:02:05,799 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:02:05,799 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106597475] [2022-02-09 04:02:05,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:02:05,800 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:02:05,800 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:02:05,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:02:05,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:02:05,800 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) [2022-02-09 04:02:06,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:02:06,929 INFO L93 Difference]: Finished difference Result 4260 states and 14068 transitions. [2022-02-09 04:02:06,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-09 04:02:06,929 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 [2022-02-09 04:02:06,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:02:06,938 INFO L225 Difference]: With dead ends: 4260 [2022-02-09 04:02:06,938 INFO L226 Difference]: Without dead ends: 4214 [2022-02-09 04:02:06,938 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 [2022-02-09 04:02:06,938 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 [2022-02-09 04:02:06,939 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] [2022-02-09 04:02:06,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4214 states. [2022-02-09 04:02:06,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4214 to 3652. [2022-02-09 04:02:06,980 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) [2022-02-09 04:02:06,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3652 states to 3652 states and 12220 transitions. [2022-02-09 04:02:06,986 INFO L78 Accepts]: Start accepts. Automaton has 3652 states and 12220 transitions. Word has length 39 [2022-02-09 04:02:06,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:02:06,986 INFO L470 AbstractCegarLoop]: Abstraction has 3652 states and 12220 transitions. [2022-02-09 04:02:06,986 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) [2022-02-09 04:02:06,986 INFO L276 IsEmpty]: Start isEmpty. Operand 3652 states and 12220 transitions. [2022-02-09 04:02:06,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:02:06,991 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:02:06,991 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] [2022-02-09 04:02:06,991 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128 [2022-02-09 04:02:06,991 INFO L402 AbstractCegarLoop]: === Iteration 130 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:02:06,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:02:06,991 INFO L85 PathProgramCache]: Analyzing trace with hash -977509862, now seen corresponding path program 130 times [2022-02-09 04:02:06,992 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:02:06,992 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590931110] [2022-02-09 04:02:06,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:02:06,992 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:02:06,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:02:07,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:02:07,200 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:02:07,200 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590931110] [2022-02-09 04:02:07,201 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590931110] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:02:07,201 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:02:07,201 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:02:07,201 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740625026] [2022-02-09 04:02:07,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:02:07,201 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:02:07,201 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:02:07,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:02:07,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:02:07,201 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) [2022-02-09 04:02:08,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:02:08,475 INFO L93 Difference]: Finished difference Result 4252 states and 14081 transitions. [2022-02-09 04:02:08,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-02-09 04:02:08,491 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 [2022-02-09 04:02:08,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:02:08,501 INFO L225 Difference]: With dead ends: 4252 [2022-02-09 04:02:08,501 INFO L226 Difference]: Without dead ends: 4203 [2022-02-09 04:02:08,502 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 [2022-02-09 04:02:08,502 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 [2022-02-09 04:02:08,502 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] [2022-02-09 04:02:08,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4203 states. [2022-02-09 04:02:08,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4203 to 3642. [2022-02-09 04:02:08,546 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) [2022-02-09 04:02:08,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3642 states to 3642 states and 12199 transitions. [2022-02-09 04:02:08,553 INFO L78 Accepts]: Start accepts. Automaton has 3642 states and 12199 transitions. Word has length 39 [2022-02-09 04:02:08,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:02:08,553 INFO L470 AbstractCegarLoop]: Abstraction has 3642 states and 12199 transitions. [2022-02-09 04:02:08,553 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) [2022-02-09 04:02:08,553 INFO L276 IsEmpty]: Start isEmpty. Operand 3642 states and 12199 transitions. [2022-02-09 04:02:08,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:02:08,558 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:02:08,558 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] [2022-02-09 04:02:08,558 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129 [2022-02-09 04:02:08,558 INFO L402 AbstractCegarLoop]: === Iteration 131 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:02:08,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:02:08,559 INFO L85 PathProgramCache]: Analyzing trace with hash 561365660, now seen corresponding path program 131 times [2022-02-09 04:02:08,559 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:02:08,559 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617602847] [2022-02-09 04:02:08,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:02:08,559 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:02:08,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:02:08,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:02:08,780 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:02:08,780 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617602847] [2022-02-09 04:02:08,780 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617602847] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:02:08,780 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:02:08,780 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:02:08,780 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3533457] [2022-02-09 04:02:08,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:02:08,780 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:02:08,780 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:02:08,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:02:08,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:02:08,781 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) [2022-02-09 04:02:09,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:02:09,880 INFO L93 Difference]: Finished difference Result 4189 states and 13952 transitions. [2022-02-09 04:02:09,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-02-09 04:02:09,881 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 [2022-02-09 04:02:09,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:02:09,889 INFO L225 Difference]: With dead ends: 4189 [2022-02-09 04:02:09,890 INFO L226 Difference]: Without dead ends: 4122 [2022-02-09 04:02:09,890 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 [2022-02-09 04:02:09,890 INFO L933 BasicCegarLoop]: 120 mSDtfsCounter, 225 mSDsluCounter, 1228 mSDsCounter, 0 mSdLazyCounter, 1806 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.7s IncrementalHoareTripleChecker+Time [2022-02-09 04:02:09,890 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [225 Valid, 1061 Invalid, 1837 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1806 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-09 04:02:09,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4122 states. [2022-02-09 04:02:09,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4122 to 3682. [2022-02-09 04:02:09,934 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) [2022-02-09 04:02:09,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3682 states to 3682 states and 12307 transitions. [2022-02-09 04:02:09,941 INFO L78 Accepts]: Start accepts. Automaton has 3682 states and 12307 transitions. Word has length 39 [2022-02-09 04:02:09,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:02:09,941 INFO L470 AbstractCegarLoop]: Abstraction has 3682 states and 12307 transitions. [2022-02-09 04:02:09,941 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) [2022-02-09 04:02:09,942 INFO L276 IsEmpty]: Start isEmpty. Operand 3682 states and 12307 transitions. [2022-02-09 04:02:09,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:02:09,947 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:02:09,947 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] [2022-02-09 04:02:09,947 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130 [2022-02-09 04:02:09,947 INFO L402 AbstractCegarLoop]: === Iteration 132 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:02:09,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:02:09,947 INFO L85 PathProgramCache]: Analyzing trace with hash 430770812, now seen corresponding path program 132 times [2022-02-09 04:02:09,947 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:02:09,947 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018488607] [2022-02-09 04:02:09,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:02:09,947 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:02:09,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:02:10,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:02:10,185 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:02:10,185 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018488607] [2022-02-09 04:02:10,185 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018488607] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:02:10,185 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:02:10,185 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:02:10,185 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731369428] [2022-02-09 04:02:10,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:02:10,185 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:02:10,185 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:02:10,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:02:10,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:02:10,186 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) [2022-02-09 04:02:11,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:02:11,263 INFO L93 Difference]: Finished difference Result 4177 states and 13912 transitions. [2022-02-09 04:02:11,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-09 04:02:11,263 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 [2022-02-09 04:02:11,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:02:11,271 INFO L225 Difference]: With dead ends: 4177 [2022-02-09 04:02:11,271 INFO L226 Difference]: Without dead ends: 4114 [2022-02-09 04:02:11,272 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 335 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=185, Invalid=1621, Unknown=0, NotChecked=0, Total=1806 [2022-02-09 04:02:11,272 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 04:02:11,272 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [236 Valid, 1066 Invalid, 1828 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1790 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 04:02:11,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4114 states. [2022-02-09 04:02:11,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4114 to 3674. [2022-02-09 04:02:11,318 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) [2022-02-09 04:02:11,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3674 states to 3674 states and 12283 transitions. [2022-02-09 04:02:11,325 INFO L78 Accepts]: Start accepts. Automaton has 3674 states and 12283 transitions. Word has length 39 [2022-02-09 04:02:11,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:02:11,325 INFO L470 AbstractCegarLoop]: Abstraction has 3674 states and 12283 transitions. [2022-02-09 04:02:11,325 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) [2022-02-09 04:02:11,325 INFO L276 IsEmpty]: Start isEmpty. Operand 3674 states and 12283 transitions. [2022-02-09 04:02:11,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:02:11,330 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:02:11,331 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:02:11,331 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2022-02-09 04:02:11,331 INFO L402 AbstractCegarLoop]: === Iteration 133 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:02:11,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:02:11,331 INFO L85 PathProgramCache]: Analyzing trace with hash -99129636, now seen corresponding path program 133 times [2022-02-09 04:02:11,331 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:02:11,331 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670961520] [2022-02-09 04:02:11,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:02:11,331 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:02:11,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:02:11,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:02:11,553 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:02:11,553 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670961520] [2022-02-09 04:02:11,553 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670961520] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:02:11,553 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:02:11,553 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:02:11,553 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831719195] [2022-02-09 04:02:11,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:02:11,554 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:02:11,554 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:02:11,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:02:11,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:02:11,554 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) [2022-02-09 04:02:12,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:02:12,662 INFO L93 Difference]: Finished difference Result 4177 states and 13904 transitions. [2022-02-09 04:02:12,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-09 04:02:12,662 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 [2022-02-09 04:02:12,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:02:12,671 INFO L225 Difference]: With dead ends: 4177 [2022-02-09 04:02:12,671 INFO L226 Difference]: Without dead ends: 4038 [2022-02-09 04:02:12,671 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 360 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=191, Invalid=1701, Unknown=0, NotChecked=0, Total=1892 [2022-02-09 04:02:12,671 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 04:02:12,671 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [233 Valid, 1131 Invalid, 1830 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1795 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 04:02:12,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4038 states. [2022-02-09 04:02:12,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4038 to 3626. [2022-02-09 04:02:12,717 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) [2022-02-09 04:02:12,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3626 states to 3626 states and 12139 transitions. [2022-02-09 04:02:12,724 INFO L78 Accepts]: Start accepts. Automaton has 3626 states and 12139 transitions. Word has length 39 [2022-02-09 04:02:12,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:02:12,724 INFO L470 AbstractCegarLoop]: Abstraction has 3626 states and 12139 transitions. [2022-02-09 04:02:12,724 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) [2022-02-09 04:02:12,724 INFO L276 IsEmpty]: Start isEmpty. Operand 3626 states and 12139 transitions. [2022-02-09 04:02:12,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:02:12,730 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:02:12,730 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:02:12,730 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132 [2022-02-09 04:02:12,730 INFO L402 AbstractCegarLoop]: === Iteration 134 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:02:12,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:02:12,730 INFO L85 PathProgramCache]: Analyzing trace with hash -1369572806, now seen corresponding path program 134 times [2022-02-09 04:02:12,730 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:02:12,730 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198111638] [2022-02-09 04:02:12,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:02:12,730 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:02:12,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:02:12,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:02:12,959 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:02:12,959 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198111638] [2022-02-09 04:02:12,959 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198111638] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:02:12,959 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:02:12,959 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:02:12,959 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955032734] [2022-02-09 04:02:12,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:02:12,959 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:02:12,959 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:02:12,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:02:12,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:02:12,960 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) [2022-02-09 04:02:14,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:02:14,471 INFO L93 Difference]: Finished difference Result 4276 states and 14125 transitions. [2022-02-09 04:02:14,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-02-09 04:02:14,471 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 [2022-02-09 04:02:14,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:02:14,480 INFO L225 Difference]: With dead ends: 4276 [2022-02-09 04:02:14,480 INFO L226 Difference]: Without dead ends: 4170 [2022-02-09 04:02:14,481 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 785 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=284, Invalid=2908, Unknown=0, NotChecked=0, Total=3192 [2022-02-09 04:02:14,481 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 [2022-02-09 04:02:14,481 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] [2022-02-09 04:02:14,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4170 states. [2022-02-09 04:02:14,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4170 to 3642. [2022-02-09 04:02:14,528 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) [2022-02-09 04:02:14,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3642 states to 3642 states and 12185 transitions. [2022-02-09 04:02:14,566 INFO L78 Accepts]: Start accepts. Automaton has 3642 states and 12185 transitions. Word has length 39 [2022-02-09 04:02:14,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:02:14,566 INFO L470 AbstractCegarLoop]: Abstraction has 3642 states and 12185 transitions. [2022-02-09 04:02:14,566 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) [2022-02-09 04:02:14,567 INFO L276 IsEmpty]: Start isEmpty. Operand 3642 states and 12185 transitions. [2022-02-09 04:02:14,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:02:14,572 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:02:14,572 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:02:14,572 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2022-02-09 04:02:14,572 INFO L402 AbstractCegarLoop]: === Iteration 135 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:02:14,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:02:14,573 INFO L85 PathProgramCache]: Analyzing trace with hash 1430503590, now seen corresponding path program 135 times [2022-02-09 04:02:14,573 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:02:14,573 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846848021] [2022-02-09 04:02:14,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:02:14,573 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:02:14,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:02:14,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:02:14,783 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:02:14,783 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846848021] [2022-02-09 04:02:14,783 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846848021] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:02:14,783 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:02:14,783 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:02:14,783 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177392502] [2022-02-09 04:02:14,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:02:14,783 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:02:14,783 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:02:14,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:02:14,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:02:14,784 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) [2022-02-09 04:02:16,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:02:16,133 INFO L93 Difference]: Finished difference Result 4285 states and 14055 transitions. [2022-02-09 04:02:16,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-02-09 04:02:16,133 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 [2022-02-09 04:02:16,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:02:16,142 INFO L225 Difference]: With dead ends: 4285 [2022-02-09 04:02:16,142 INFO L226 Difference]: Without dead ends: 4221 [2022-02-09 04:02:16,142 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 752 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=283, Invalid=2797, Unknown=0, NotChecked=0, Total=3080 [2022-02-09 04:02:16,142 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 [2022-02-09 04:02:16,143 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] [2022-02-09 04:02:16,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4221 states. [2022-02-09 04:02:16,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4221 to 3642. [2022-02-09 04:02:16,187 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) [2022-02-09 04:02:16,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3642 states to 3642 states and 12185 transitions. [2022-02-09 04:02:16,194 INFO L78 Accepts]: Start accepts. Automaton has 3642 states and 12185 transitions. Word has length 39 [2022-02-09 04:02:16,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:02:16,194 INFO L470 AbstractCegarLoop]: Abstraction has 3642 states and 12185 transitions. [2022-02-09 04:02:16,194 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) [2022-02-09 04:02:16,194 INFO L276 IsEmpty]: Start isEmpty. Operand 3642 states and 12185 transitions. [2022-02-09 04:02:16,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:02:16,199 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:02:16,199 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] [2022-02-09 04:02:16,199 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2022-02-09 04:02:16,200 INFO L402 AbstractCegarLoop]: === Iteration 136 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:02:16,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:02:16,200 INFO L85 PathProgramCache]: Analyzing trace with hash -1945980136, now seen corresponding path program 136 times [2022-02-09 04:02:16,200 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:02:16,200 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100612381] [2022-02-09 04:02:16,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:02:16,200 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:02:16,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:02:16,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:02:16,417 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:02:16,417 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100612381] [2022-02-09 04:02:16,417 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100612381] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:02:16,417 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:02:16,417 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:02:16,417 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115323975] [2022-02-09 04:02:16,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:02:16,417 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:02:16,417 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:02:16,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:02:16,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:02:16,417 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) [2022-02-09 04:02:17,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:02:17,485 INFO L93 Difference]: Finished difference Result 4182 states and 13783 transitions. [2022-02-09 04:02:17,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-09 04:02:17,485 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 [2022-02-09 04:02:17,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:02:17,494 INFO L225 Difference]: With dead ends: 4182 [2022-02-09 04:02:17,494 INFO L226 Difference]: Without dead ends: 4139 [2022-02-09 04:02:17,494 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 420 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=202, Invalid=1868, Unknown=0, NotChecked=0, Total=2070 [2022-02-09 04:02:17,494 INFO L933 BasicCegarLoop]: 107 mSDtfsCounter, 255 mSDsluCounter, 1255 mSDsCounter, 0 mSdLazyCounter, 1705 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 04:02:17,494 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [255 Valid, 978 Invalid, 1744 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1705 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 04:02:17,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4139 states. [2022-02-09 04:02:17,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4139 to 3648. [2022-02-09 04:02:17,535 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) [2022-02-09 04:02:17,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3648 states to 3648 states and 12198 transitions. [2022-02-09 04:02:17,542 INFO L78 Accepts]: Start accepts. Automaton has 3648 states and 12198 transitions. Word has length 39 [2022-02-09 04:02:17,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:02:17,543 INFO L470 AbstractCegarLoop]: Abstraction has 3648 states and 12198 transitions. [2022-02-09 04:02:17,543 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) [2022-02-09 04:02:17,543 INFO L276 IsEmpty]: Start isEmpty. Operand 3648 states and 12198 transitions. [2022-02-09 04:02:17,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:02:17,548 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:02:17,548 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] [2022-02-09 04:02:17,548 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135 [2022-02-09 04:02:17,548 INFO L402 AbstractCegarLoop]: === Iteration 137 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:02:17,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:02:17,548 INFO L85 PathProgramCache]: Analyzing trace with hash -1925831402, now seen corresponding path program 137 times [2022-02-09 04:02:17,548 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:02:17,548 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577682204] [2022-02-09 04:02:17,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:02:17,548 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:02:17,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:02:17,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:02:17,769 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:02:17,769 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577682204] [2022-02-09 04:02:17,769 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577682204] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:02:17,769 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:02:17,770 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:02:17,770 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903722010] [2022-02-09 04:02:17,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:02:17,770 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:02:17,770 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:02:17,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:02:17,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:02:17,770 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) [2022-02-09 04:02:18,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:02:18,927 INFO L93 Difference]: Finished difference Result 4151 states and 13720 transitions. [2022-02-09 04:02:18,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-02-09 04:02:18,928 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 [2022-02-09 04:02:18,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:02:18,936 INFO L225 Difference]: With dead ends: 4151 [2022-02-09 04:02:18,936 INFO L226 Difference]: Without dead ends: 4108 [2022-02-09 04:02:18,936 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 478 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=221, Invalid=2035, Unknown=0, NotChecked=0, Total=2256 [2022-02-09 04:02:18,937 INFO L933 BasicCegarLoop]: 111 mSDtfsCounter, 254 mSDsluCounter, 1299 mSDsCounter, 0 mSdLazyCounter, 1719 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 04:02:18,937 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [254 Valid, 1027 Invalid, 1765 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 1719 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 04:02:18,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4108 states. [2022-02-09 04:02:18,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4108 to 3644. [2022-02-09 04:02:18,977 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) [2022-02-09 04:02:18,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3644 states to 3644 states and 12188 transitions. [2022-02-09 04:02:18,984 INFO L78 Accepts]: Start accepts. Automaton has 3644 states and 12188 transitions. Word has length 39 [2022-02-09 04:02:18,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:02:18,984 INFO L470 AbstractCegarLoop]: Abstraction has 3644 states and 12188 transitions. [2022-02-09 04:02:18,984 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) [2022-02-09 04:02:18,984 INFO L276 IsEmpty]: Start isEmpty. Operand 3644 states and 12188 transitions. [2022-02-09 04:02:18,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:02:18,988 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:02:18,988 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] [2022-02-09 04:02:18,988 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2022-02-09 04:02:18,989 INFO L402 AbstractCegarLoop]: === Iteration 138 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:02:18,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:02:18,989 INFO L85 PathProgramCache]: Analyzing trace with hash -773327914, now seen corresponding path program 138 times [2022-02-09 04:02:18,989 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:02:18,989 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550056] [2022-02-09 04:02:18,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:02:18,989 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:02:18,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:02:19,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:02:19,205 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:02:19,205 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550056] [2022-02-09 04:02:19,205 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550056] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:02:19,205 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:02:19,205 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:02:19,205 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539293127] [2022-02-09 04:02:19,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:02:19,205 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:02:19,205 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:02:19,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:02:19,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:02:19,206 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) [2022-02-09 04:02:20,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:02:20,339 INFO L93 Difference]: Finished difference Result 4160 states and 13742 transitions. [2022-02-09 04:02:20,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-02-09 04:02:20,340 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 [2022-02-09 04:02:20,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:02:20,348 INFO L225 Difference]: With dead ends: 4160 [2022-02-09 04:02:20,348 INFO L226 Difference]: Without dead ends: 4100 [2022-02-09 04:02:20,349 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 [2022-02-09 04:02:20,349 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 [2022-02-09 04:02:20,349 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] [2022-02-09 04:02:20,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4100 states. [2022-02-09 04:02:20,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4100 to 3642. [2022-02-09 04:02:20,389 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) [2022-02-09 04:02:20,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3642 states to 3642 states and 12183 transitions. [2022-02-09 04:02:20,396 INFO L78 Accepts]: Start accepts. Automaton has 3642 states and 12183 transitions. Word has length 39 [2022-02-09 04:02:20,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:02:20,396 INFO L470 AbstractCegarLoop]: Abstraction has 3642 states and 12183 transitions. [2022-02-09 04:02:20,396 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) [2022-02-09 04:02:20,397 INFO L276 IsEmpty]: Start isEmpty. Operand 3642 states and 12183 transitions. [2022-02-09 04:02:20,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:02:20,402 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:02:20,402 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:02:20,402 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2022-02-09 04:02:20,403 INFO L402 AbstractCegarLoop]: === Iteration 139 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:02:20,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:02:20,403 INFO L85 PathProgramCache]: Analyzing trace with hash 1442072840, now seen corresponding path program 139 times [2022-02-09 04:02:20,403 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:02:20,403 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25508807] [2022-02-09 04:02:20,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:02:20,403 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:02:20,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:02:20,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:02:20,609 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:02:20,609 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25508807] [2022-02-09 04:02:20,609 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25508807] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:02:20,609 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:02:20,609 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-09 04:02:20,609 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632959714] [2022-02-09 04:02:20,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:02:20,609 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-02-09 04:02:20,609 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:02:20,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-02-09 04:02:20,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2022-02-09 04:02:20,610 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) [2022-02-09 04:02:21,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:02:21,606 INFO L93 Difference]: Finished difference Result 4128 states and 13682 transitions. [2022-02-09 04:02:21,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-09 04:02:21,606 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 [2022-02-09 04:02:21,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:02:21,615 INFO L225 Difference]: With dead ends: 4128 [2022-02-09 04:02:21,615 INFO L226 Difference]: Without dead ends: 4052 [2022-02-09 04:02:21,615 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 [2022-02-09 04:02:21,615 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 [2022-02-09 04:02:21,615 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] [2022-02-09 04:02:21,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4052 states. [2022-02-09 04:02:21,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4052 to 3650. [2022-02-09 04:02:21,659 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) [2022-02-09 04:02:21,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3650 states to 3650 states and 12199 transitions. [2022-02-09 04:02:21,666 INFO L78 Accepts]: Start accepts. Automaton has 3650 states and 12199 transitions. Word has length 39 [2022-02-09 04:02:21,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:02:21,667 INFO L470 AbstractCegarLoop]: Abstraction has 3650 states and 12199 transitions. [2022-02-09 04:02:21,667 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) [2022-02-09 04:02:21,667 INFO L276 IsEmpty]: Start isEmpty. Operand 3650 states and 12199 transitions. [2022-02-09 04:02:21,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:02:21,672 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:02:21,672 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:02:21,672 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2022-02-09 04:02:21,672 INFO L402 AbstractCegarLoop]: === Iteration 140 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:02:21,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:02:21,672 INFO L85 PathProgramCache]: Analyzing trace with hash 424019228, now seen corresponding path program 140 times [2022-02-09 04:02:21,672 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:02:21,672 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304632977] [2022-02-09 04:02:21,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:02:21,673 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:02:21,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:02:21,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:02:21,942 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:02:21,942 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304632977] [2022-02-09 04:02:21,942 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304632977] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:02:21,942 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:02:21,942 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:02:21,942 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030007612] [2022-02-09 04:02:21,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:02:21,942 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:02:21,942 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:02:21,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:02:21,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:02:21,943 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) [2022-02-09 04:02:22,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:02:22,989 INFO L93 Difference]: Finished difference Result 4110 states and 13628 transitions. [2022-02-09 04:02:22,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-09 04:02:22,990 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 [2022-02-09 04:02:22,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:02:23,007 INFO L225 Difference]: With dead ends: 4110 [2022-02-09 04:02:23,007 INFO L226 Difference]: Without dead ends: 4040 [2022-02-09 04:02:23,007 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 [2022-02-09 04:02:23,007 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 [2022-02-09 04:02:23,007 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] [2022-02-09 04:02:23,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4040 states. [2022-02-09 04:02:23,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4040 to 3638. [2022-02-09 04:02:23,047 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) [2022-02-09 04:02:23,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3638 states to 3638 states and 12171 transitions. [2022-02-09 04:02:23,054 INFO L78 Accepts]: Start accepts. Automaton has 3638 states and 12171 transitions. Word has length 39 [2022-02-09 04:02:23,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:02:23,054 INFO L470 AbstractCegarLoop]: Abstraction has 3638 states and 12171 transitions. [2022-02-09 04:02:23,055 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) [2022-02-09 04:02:23,055 INFO L276 IsEmpty]: Start isEmpty. Operand 3638 states and 12171 transitions. [2022-02-09 04:02:23,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:02:23,060 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:02:23,060 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:02:23,060 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2022-02-09 04:02:23,060 INFO L402 AbstractCegarLoop]: === Iteration 141 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:02:23,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:02:23,060 INFO L85 PathProgramCache]: Analyzing trace with hash -255172104, now seen corresponding path program 141 times [2022-02-09 04:02:23,060 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:02:23,060 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440540671] [2022-02-09 04:02:23,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:02:23,060 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:02:23,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:02:23,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:02:23,273 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:02:23,273 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440540671] [2022-02-09 04:02:23,273 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440540671] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:02:23,273 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:02:23,273 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-09 04:02:23,273 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187946305] [2022-02-09 04:02:23,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:02:23,273 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-02-09 04:02:23,273 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:02:23,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-02-09 04:02:23,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2022-02-09 04:02:23,274 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) [2022-02-09 04:02:24,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:02:24,137 INFO L93 Difference]: Finished difference Result 4059 states and 13491 transitions. [2022-02-09 04:02:24,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-02-09 04:02:24,138 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 [2022-02-09 04:02:24,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:02:24,146 INFO L225 Difference]: With dead ends: 4059 [2022-02-09 04:02:24,146 INFO L226 Difference]: Without dead ends: 3983 [2022-02-09 04:02:24,146 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 [2022-02-09 04:02:24,146 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 [2022-02-09 04:02:24,146 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] [2022-02-09 04:02:24,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3983 states. [2022-02-09 04:02:24,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3983 to 3670. [2022-02-09 04:02:24,191 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) [2022-02-09 04:02:24,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3670 states to 3670 states and 12259 transitions. [2022-02-09 04:02:24,198 INFO L78 Accepts]: Start accepts. Automaton has 3670 states and 12259 transitions. Word has length 39 [2022-02-09 04:02:24,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:02:24,199 INFO L470 AbstractCegarLoop]: Abstraction has 3670 states and 12259 transitions. [2022-02-09 04:02:24,199 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) [2022-02-09 04:02:24,199 INFO L276 IsEmpty]: Start isEmpty. Operand 3670 states and 12259 transitions. [2022-02-09 04:02:24,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:02:24,204 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:02:24,204 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:02:24,204 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2022-02-09 04:02:24,204 INFO L402 AbstractCegarLoop]: === Iteration 142 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:02:24,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:02:24,204 INFO L85 PathProgramCache]: Analyzing trace with hash -1273225716, now seen corresponding path program 142 times [2022-02-09 04:02:24,204 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:02:24,204 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711927282] [2022-02-09 04:02:24,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:02:24,205 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:02:24,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:02:24,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:02:24,429 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:02:24,429 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711927282] [2022-02-09 04:02:24,429 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711927282] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:02:24,429 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:02:24,429 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:02:24,429 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260670631] [2022-02-09 04:02:24,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:02:24,429 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:02:24,429 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:02:24,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:02:24,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:02:24,430 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) [2022-02-09 04:02:25,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:02:25,375 INFO L93 Difference]: Finished difference Result 4041 states and 13437 transitions. [2022-02-09 04:02:25,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-02-09 04:02:25,375 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 [2022-02-09 04:02:25,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:02:25,384 INFO L225 Difference]: With dead ends: 4041 [2022-02-09 04:02:25,384 INFO L226 Difference]: Without dead ends: 3975 [2022-02-09 04:02:25,385 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 340 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=181, Invalid=1625, Unknown=0, NotChecked=0, Total=1806 [2022-02-09 04:02:25,385 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 [2022-02-09 04:02:25,385 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] [2022-02-09 04:02:25,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3975 states. [2022-02-09 04:02:25,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3975 to 3662. [2022-02-09 04:02:25,433 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) [2022-02-09 04:02:25,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3662 states to 3662 states and 12235 transitions. [2022-02-09 04:02:25,441 INFO L78 Accepts]: Start accepts. Automaton has 3662 states and 12235 transitions. Word has length 39 [2022-02-09 04:02:25,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:02:25,441 INFO L470 AbstractCegarLoop]: Abstraction has 3662 states and 12235 transitions. [2022-02-09 04:02:25,441 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) [2022-02-09 04:02:25,441 INFO L276 IsEmpty]: Start isEmpty. Operand 3662 states and 12235 transitions. [2022-02-09 04:02:25,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:02:25,446 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:02:25,446 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] [2022-02-09 04:02:25,447 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2022-02-09 04:02:25,447 INFO L402 AbstractCegarLoop]: === Iteration 143 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:02:25,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:02:25,447 INFO L85 PathProgramCache]: Analyzing trace with hash -1555491370, now seen corresponding path program 143 times [2022-02-09 04:02:25,447 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:02:25,447 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331594036] [2022-02-09 04:02:25,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:02:25,447 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:02:25,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:02:25,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:02:25,648 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:02:25,648 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331594036] [2022-02-09 04:02:25,648 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331594036] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:02:25,648 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:02:25,648 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:02:25,648 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854033099] [2022-02-09 04:02:25,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:02:25,648 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:02:25,649 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:02:25,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:02:25,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:02:25,649 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) [2022-02-09 04:02:26,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:02:26,541 INFO L93 Difference]: Finished difference Result 4050 states and 13458 transitions. [2022-02-09 04:02:26,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-02-09 04:02:26,541 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 [2022-02-09 04:02:26,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:02:26,550 INFO L225 Difference]: With dead ends: 4050 [2022-02-09 04:02:26,550 INFO L226 Difference]: Without dead ends: 3888 [2022-02-09 04:02:26,550 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 [2022-02-09 04:02:26,551 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 [2022-02-09 04:02:26,551 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] [2022-02-09 04:02:26,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3888 states. [2022-02-09 04:02:26,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3888 to 3594. [2022-02-09 04:02:26,591 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) [2022-02-09 04:02:26,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3594 states to 3594 states and 12047 transitions. [2022-02-09 04:02:26,597 INFO L78 Accepts]: Start accepts. Automaton has 3594 states and 12047 transitions. Word has length 39 [2022-02-09 04:02:26,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:02:26,597 INFO L470 AbstractCegarLoop]: Abstraction has 3594 states and 12047 transitions. [2022-02-09 04:02:26,598 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) [2022-02-09 04:02:26,598 INFO L276 IsEmpty]: Start isEmpty. Operand 3594 states and 12047 transitions. [2022-02-09 04:02:26,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:02:26,602 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:02:26,602 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] [2022-02-09 04:02:26,602 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142 [2022-02-09 04:02:26,602 INFO L402 AbstractCegarLoop]: === Iteration 144 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:02:26,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:02:26,603 INFO L85 PathProgramCache]: Analyzing trace with hash 402994890, now seen corresponding path program 144 times [2022-02-09 04:02:26,603 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:02:26,603 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649160143] [2022-02-09 04:02:26,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:02:26,603 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:02:26,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:02:26,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:02:26,821 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:02:26,821 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649160143] [2022-02-09 04:02:26,822 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1649160143] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:02:26,822 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:02:26,822 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:02:26,822 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676713280] [2022-02-09 04:02:26,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:02:26,822 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:02:26,822 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:02:26,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:02:26,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:02:26,822 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) [2022-02-09 04:02:28,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:02:28,130 INFO L93 Difference]: Finished difference Result 4277 states and 14182 transitions. [2022-02-09 04:02:28,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-02-09 04:02:28,130 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:02:28,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:02:28,138 INFO L225 Difference]: With dead ends: 4277 [2022-02-09 04:02:28,138 INFO L226 Difference]: Without dead ends: 4210 [2022-02-09 04:02:28,139 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 673 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=281, Invalid=2689, Unknown=0, NotChecked=0, Total=2970 [2022-02-09 04:02:28,139 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 [2022-02-09 04:02:28,139 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] [2022-02-09 04:02:28,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4210 states. [2022-02-09 04:02:28,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4210 to 3652. [2022-02-09 04:02:28,180 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) [2022-02-09 04:02:28,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3652 states to 3652 states and 12220 transitions. [2022-02-09 04:02:28,187 INFO L78 Accepts]: Start accepts. Automaton has 3652 states and 12220 transitions. Word has length 39 [2022-02-09 04:02:28,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:02:28,187 INFO L470 AbstractCegarLoop]: Abstraction has 3652 states and 12220 transitions. [2022-02-09 04:02:28,187 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:02:28,187 INFO L276 IsEmpty]: Start isEmpty. Operand 3652 states and 12220 transitions. [2022-02-09 04:02:28,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:02:28,192 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:02:28,192 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:02:28,192 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143 [2022-02-09 04:02:28,192 INFO L402 AbstractCegarLoop]: === Iteration 145 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:02:28,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:02:28,192 INFO L85 PathProgramCache]: Analyzing trace with hash -1316621080, now seen corresponding path program 145 times [2022-02-09 04:02:28,192 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:02:28,192 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140506112] [2022-02-09 04:02:28,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:02:28,193 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:02:28,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:02:28,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:02:28,411 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:02:28,411 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140506112] [2022-02-09 04:02:28,411 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140506112] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:02:28,411 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:02:28,411 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:02:28,411 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290556174] [2022-02-09 04:02:28,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:02:28,412 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:02:28,412 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:02:28,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:02:28,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:02:28,412 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) [2022-02-09 04:02:30,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:02:30,081 INFO L93 Difference]: Finished difference Result 4414 states and 14539 transitions. [2022-02-09 04:02:30,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-02-09 04:02:30,081 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:02:30,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:02:30,090 INFO L225 Difference]: With dead ends: 4414 [2022-02-09 04:02:30,090 INFO L226 Difference]: Without dead ends: 4371 [2022-02-09 04:02:30,091 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1040 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=351, Invalid=3681, Unknown=0, NotChecked=0, Total=4032 [2022-02-09 04:02:30,091 INFO L933 BasicCegarLoop]: 135 mSDtfsCounter, 374 mSDsluCounter, 1670 mSDsCounter, 0 mSdLazyCounter, 2313 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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, 0.8s IncrementalHoareTripleChecker+Time [2022-02-09 04:02:30,091 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [374 Valid, 1445 Invalid, 2386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 2313 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-09 04:02:30,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4371 states. [2022-02-09 04:02:30,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4371 to 3658. [2022-02-09 04:02:30,144 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) [2022-02-09 04:02:30,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3658 states to 3658 states and 12233 transitions. [2022-02-09 04:02:30,152 INFO L78 Accepts]: Start accepts. Automaton has 3658 states and 12233 transitions. Word has length 39 [2022-02-09 04:02:30,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:02:30,152 INFO L470 AbstractCegarLoop]: Abstraction has 3658 states and 12233 transitions. [2022-02-09 04:02:30,152 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:02:30,152 INFO L276 IsEmpty]: Start isEmpty. Operand 3658 states and 12233 transitions. [2022-02-09 04:02:30,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:02:30,158 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:02:30,158 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] [2022-02-09 04:02:30,158 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144 [2022-02-09 04:02:30,158 INFO L402 AbstractCegarLoop]: === Iteration 146 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:02:30,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:02:30,158 INFO L85 PathProgramCache]: Analyzing trace with hash 1197747914, now seen corresponding path program 146 times [2022-02-09 04:02:30,159 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:02:30,159 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279438380] [2022-02-09 04:02:30,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:02:30,159 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:02:30,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:02:30,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:02:30,396 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:02:30,397 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279438380] [2022-02-09 04:02:30,397 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279438380] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:02:30,397 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:02:30,397 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:02:30,397 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848958700] [2022-02-09 04:02:30,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:02:30,397 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:02:30,397 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:02:30,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:02:30,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:02:30,397 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) [2022-02-09 04:02:31,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:02:31,976 INFO L93 Difference]: Finished difference Result 4345 states and 14359 transitions. [2022-02-09 04:02:31,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-02-09 04:02:31,977 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 [2022-02-09 04:02:31,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:02:31,985 INFO L225 Difference]: With dead ends: 4345 [2022-02-09 04:02:31,985 INFO L226 Difference]: Without dead ends: 4281 [2022-02-09 04:02:31,986 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 950 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=333, Invalid=3449, Unknown=0, NotChecked=0, Total=3782 [2022-02-09 04:02:31,986 INFO L933 BasicCegarLoop]: 130 mSDtfsCounter, 357 mSDsluCounter, 1622 mSDsCounter, 0 mSdLazyCounter, 2226 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.8s IncrementalHoareTripleChecker+Time [2022-02-09 04:02:31,986 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [357 Valid, 1407 Invalid, 2298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 2226 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-09 04:02:31,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4281 states. [2022-02-09 04:02:32,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4281 to 3640. [2022-02-09 04:02:32,032 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) [2022-02-09 04:02:32,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3640 states to 3640 states and 12190 transitions. [2022-02-09 04:02:32,039 INFO L78 Accepts]: Start accepts. Automaton has 3640 states and 12190 transitions. Word has length 39 [2022-02-09 04:02:32,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:02:32,039 INFO L470 AbstractCegarLoop]: Abstraction has 3640 states and 12190 transitions. [2022-02-09 04:02:32,039 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) [2022-02-09 04:02:32,039 INFO L276 IsEmpty]: Start isEmpty. Operand 3640 states and 12190 transitions. [2022-02-09 04:02:32,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:02:32,044 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:02:32,044 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] [2022-02-09 04:02:32,044 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145 [2022-02-09 04:02:32,044 INFO L402 AbstractCegarLoop]: === Iteration 147 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:02:32,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:02:32,045 INFO L85 PathProgramCache]: Analyzing trace with hash 1818182314, now seen corresponding path program 147 times [2022-02-09 04:02:32,045 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:02:32,045 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450192972] [2022-02-09 04:02:32,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:02:32,045 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:02:32,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:02:32,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:02:32,261 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:02:32,261 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450192972] [2022-02-09 04:02:32,261 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450192972] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:02:32,261 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:02:32,261 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:02:32,261 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918273447] [2022-02-09 04:02:32,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:02:32,261 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:02:32,262 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:02:32,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:02:32,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:02:32,262 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) [2022-02-09 04:02:33,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:02:33,412 INFO L93 Difference]: Finished difference Result 4245 states and 14072 transitions. [2022-02-09 04:02:33,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-02-09 04:02:33,413 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 [2022-02-09 04:02:33,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:02:33,421 INFO L225 Difference]: With dead ends: 4245 [2022-02-09 04:02:33,421 INFO L226 Difference]: Without dead ends: 4178 [2022-02-09 04:02:33,421 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 541 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=247, Invalid=2303, Unknown=0, NotChecked=0, Total=2550 [2022-02-09 04:02:33,422 INFO L933 BasicCegarLoop]: 112 mSDtfsCounter, 274 mSDsluCounter, 1364 mSDsCounter, 0 mSdLazyCounter, 1842 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 04:02:33,422 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [274 Valid, 1142 Invalid, 1901 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 1842 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 04:02:33,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4178 states. [2022-02-09 04:02:33,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4178 to 3648. [2022-02-09 04:02:33,466 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) [2022-02-09 04:02:33,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3648 states to 3648 states and 12206 transitions. [2022-02-09 04:02:33,473 INFO L78 Accepts]: Start accepts. Automaton has 3648 states and 12206 transitions. Word has length 39 [2022-02-09 04:02:33,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:02:33,474 INFO L470 AbstractCegarLoop]: Abstraction has 3648 states and 12206 transitions. [2022-02-09 04:02:33,474 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:02:33,474 INFO L276 IsEmpty]: Start isEmpty. Operand 3648 states and 12206 transitions. [2022-02-09 04:02:33,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:02:33,479 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:02:33,479 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] [2022-02-09 04:02:33,479 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2022-02-09 04:02:33,479 INFO L402 AbstractCegarLoop]: === Iteration 148 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:02:33,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:02:33,480 INFO L85 PathProgramCache]: Analyzing trace with hash 1687587466, now seen corresponding path program 148 times [2022-02-09 04:02:33,480 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:02:33,480 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083912671] [2022-02-09 04:02:33,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:02:33,480 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:02:33,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:02:33,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:02:33,702 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:02:33,702 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083912671] [2022-02-09 04:02:33,702 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083912671] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:02:33,702 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:02:33,702 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:02:33,702 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615707612] [2022-02-09 04:02:33,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:02:33,702 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:02:33,702 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:02:33,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:02:33,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:02:33,702 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) [2022-02-09 04:02:34,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:02:34,875 INFO L93 Difference]: Finished difference Result 4233 states and 14032 transitions. [2022-02-09 04:02:34,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-02-09 04:02:34,875 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:02:34,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:02:34,884 INFO L225 Difference]: With dead ends: 4233 [2022-02-09 04:02:34,884 INFO L226 Difference]: Without dead ends: 4170 [2022-02-09 04:02:34,885 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 575 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=254, Invalid=2398, Unknown=0, NotChecked=0, Total=2652 [2022-02-09 04:02:34,885 INFO L933 BasicCegarLoop]: 113 mSDtfsCounter, 274 mSDsluCounter, 1389 mSDsCounter, 0 mSdLazyCounter, 1855 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 04:02:34,885 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [274 Valid, 1169 Invalid, 1915 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 1855 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 04:02:34,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4170 states. [2022-02-09 04:02:34,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4170 to 3640. [2022-02-09 04:02:34,934 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) [2022-02-09 04:02:34,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3640 states to 3640 states and 12186 transitions. [2022-02-09 04:02:34,941 INFO L78 Accepts]: Start accepts. Automaton has 3640 states and 12186 transitions. Word has length 39 [2022-02-09 04:02:34,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:02:34,941 INFO L470 AbstractCegarLoop]: Abstraction has 3640 states and 12186 transitions. [2022-02-09 04:02:34,941 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) [2022-02-09 04:02:34,942 INFO L276 IsEmpty]: Start isEmpty. Operand 3640 states and 12186 transitions. [2022-02-09 04:02:34,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:02:34,947 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:02:34,947 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] [2022-02-09 04:02:34,947 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147 [2022-02-09 04:02:34,947 INFO L402 AbstractCegarLoop]: === Iteration 149 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:02:34,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:02:34,947 INFO L85 PathProgramCache]: Analyzing trace with hash 1551908874, now seen corresponding path program 149 times [2022-02-09 04:02:34,947 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:02:34,947 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723185071] [2022-02-09 04:02:34,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:02:34,948 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:02:34,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:02:35,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:02:35,168 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:02:35,168 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723185071] [2022-02-09 04:02:35,168 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723185071] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:02:35,168 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:02:35,168 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:02:35,168 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851640527] [2022-02-09 04:02:35,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:02:35,169 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:02:35,169 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:02:35,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:02:35,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:02:35,169 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) [2022-02-09 04:02:36,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:02:36,720 INFO L93 Difference]: Finished difference Result 4396 states and 14421 transitions. [2022-02-09 04:02:36,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-02-09 04:02:36,720 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:02:36,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:02:36,729 INFO L225 Difference]: With dead ends: 4396 [2022-02-09 04:02:36,729 INFO L226 Difference]: Without dead ends: 4353 [2022-02-09 04:02:36,729 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 954 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=333, Invalid=3449, Unknown=0, NotChecked=0, Total=3782 [2022-02-09 04:02:36,729 INFO L933 BasicCegarLoop]: 114 mSDtfsCounter, 358 mSDsluCounter, 1493 mSDsCounter, 0 mSdLazyCounter, 2080 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.7s IncrementalHoareTripleChecker+Time [2022-02-09 04:02:36,729 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [358 Valid, 1236 Invalid, 2155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 2080 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-09 04:02:36,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4353 states. [2022-02-09 04:02:36,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4353 to 3648. [2022-02-09 04:02:36,772 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) [2022-02-09 04:02:36,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3648 states to 3648 states and 12206 transitions. [2022-02-09 04:02:36,779 INFO L78 Accepts]: Start accepts. Automaton has 3648 states and 12206 transitions. Word has length 39 [2022-02-09 04:02:36,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:02:36,779 INFO L470 AbstractCegarLoop]: Abstraction has 3648 states and 12206 transitions. [2022-02-09 04:02:36,779 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) [2022-02-09 04:02:36,779 INFO L276 IsEmpty]: Start isEmpty. Operand 3648 states and 12206 transitions. [2022-02-09 04:02:36,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:02:36,784 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:02:36,784 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:02:36,784 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148 [2022-02-09 04:02:36,784 INFO L402 AbstractCegarLoop]: === Iteration 150 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:02:36,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:02:36,784 INFO L85 PathProgramCache]: Analyzing trace with hash -228689428, now seen corresponding path program 150 times [2022-02-09 04:02:36,784 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:02:36,784 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602184254] [2022-02-09 04:02:36,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:02:36,784 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:02:36,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:02:37,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:02:37,022 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:02:37,022 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602184254] [2022-02-09 04:02:37,022 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602184254] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:02:37,022 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:02:37,022 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:02:37,022 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979254216] [2022-02-09 04:02:37,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:02:37,022 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:02:37,022 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:02:37,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:02:37,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:02:37,023 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) [2022-02-09 04:02:38,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:02:38,493 INFO L93 Difference]: Finished difference Result 4384 states and 14383 transitions. [2022-02-09 04:02:38,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-02-09 04:02:38,493 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:02:38,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:02:38,501 INFO L225 Difference]: With dead ends: 4384 [2022-02-09 04:02:38,502 INFO L226 Difference]: Without dead ends: 4332 [2022-02-09 04:02:38,502 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 910 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=325, Invalid=3335, Unknown=0, NotChecked=0, Total=3660 [2022-02-09 04:02:38,502 INFO L933 BasicCegarLoop]: 112 mSDtfsCounter, 353 mSDsluCounter, 1465 mSDsCounter, 0 mSdLazyCounter, 2050 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.7s IncrementalHoareTripleChecker+Time [2022-02-09 04:02:38,502 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [353 Valid, 1219 Invalid, 2120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 2050 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-09 04:02:38,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4332 states. [2022-02-09 04:02:38,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4332 to 3640. [2022-02-09 04:02:38,560 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) [2022-02-09 04:02:38,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3640 states to 3640 states and 12186 transitions. [2022-02-09 04:02:38,566 INFO L78 Accepts]: Start accepts. Automaton has 3640 states and 12186 transitions. Word has length 39 [2022-02-09 04:02:38,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:02:38,566 INFO L470 AbstractCegarLoop]: Abstraction has 3640 states and 12186 transitions. [2022-02-09 04:02:38,566 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:02:38,566 INFO L276 IsEmpty]: Start isEmpty. Operand 3640 states and 12186 transitions. [2022-02-09 04:02:38,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:02:38,571 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:02:38,571 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:02:38,571 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable149 [2022-02-09 04:02:38,571 INFO L402 AbstractCegarLoop]: === Iteration 151 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:02:38,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:02:38,571 INFO L85 PathProgramCache]: Analyzing trace with hash -1824574852, now seen corresponding path program 151 times [2022-02-09 04:02:38,572 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:02:38,572 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509746042] [2022-02-09 04:02:38,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:02:38,572 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:02:38,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:02:38,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:02:38,786 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:02:38,786 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509746042] [2022-02-09 04:02:38,786 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509746042] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:02:38,786 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:02:38,786 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:02:38,787 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483235731] [2022-02-09 04:02:38,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:02:38,787 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:02:38,787 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:02:38,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:02:38,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:02:38,787 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) [2022-02-09 04:02:40,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:02:40,029 INFO L93 Difference]: Finished difference Result 4361 states and 14306 transitions. [2022-02-09 04:02:40,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-02-09 04:02:40,029 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:02:40,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:02:40,038 INFO L225 Difference]: With dead ends: 4361 [2022-02-09 04:02:40,038 INFO L226 Difference]: Without dead ends: 4306 [2022-02-09 04:02:40,038 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 644 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=271, Invalid=2591, Unknown=0, NotChecked=0, Total=2862 [2022-02-09 04:02:40,038 INFO L933 BasicCegarLoop]: 112 mSDtfsCounter, 302 mSDsluCounter, 1440 mSDsCounter, 0 mSdLazyCounter, 1903 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 04:02:40,038 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [302 Valid, 1183 Invalid, 1966 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 1903 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 04:02:40,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4306 states. [2022-02-09 04:02:40,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4306 to 3642. [2022-02-09 04:02:40,081 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) [2022-02-09 04:02:40,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3642 states to 3642 states and 12189 transitions. [2022-02-09 04:02:40,087 INFO L78 Accepts]: Start accepts. Automaton has 3642 states and 12189 transitions. Word has length 39 [2022-02-09 04:02:40,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:02:40,087 INFO L470 AbstractCegarLoop]: Abstraction has 3642 states and 12189 transitions. [2022-02-09 04:02:40,087 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) [2022-02-09 04:02:40,087 INFO L276 IsEmpty]: Start isEmpty. Operand 3642 states and 12189 transitions. [2022-02-09 04:02:40,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:02:40,092 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:02:40,092 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] [2022-02-09 04:02:40,092 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable150 [2022-02-09 04:02:40,092 INFO L402 AbstractCegarLoop]: === Iteration 152 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:02:40,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:02:40,092 INFO L85 PathProgramCache]: Analyzing trace with hash -651922630, now seen corresponding path program 152 times [2022-02-09 04:02:40,092 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:02:40,092 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300717267] [2022-02-09 04:02:40,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:02:40,092 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:02:40,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:02:40,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:02:40,314 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:02:40,314 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300717267] [2022-02-09 04:02:40,314 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300717267] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:02:40,314 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:02:40,314 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:02:40,314 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941582878] [2022-02-09 04:02:40,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:02:40,314 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:02:40,314 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:02:40,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:02:40,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:02:40,315 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) [2022-02-09 04:02:41,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:02:41,480 INFO L93 Difference]: Finished difference Result 4296 states and 14154 transitions. [2022-02-09 04:02:41,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-02-09 04:02:41,480 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 [2022-02-09 04:02:41,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:02:41,488 INFO L225 Difference]: With dead ends: 4296 [2022-02-09 04:02:41,488 INFO L226 Difference]: Without dead ends: 4250 [2022-02-09 04:02:41,488 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 [2022-02-09 04:02:41,488 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 [2022-02-09 04:02:41,489 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] [2022-02-09 04:02:41,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4250 states. [2022-02-09 04:02:41,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4250 to 3646. [2022-02-09 04:02:41,528 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) [2022-02-09 04:02:41,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3646 states to 3646 states and 12197 transitions. [2022-02-09 04:02:41,534 INFO L78 Accepts]: Start accepts. Automaton has 3646 states and 12197 transitions. Word has length 39 [2022-02-09 04:02:41,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:02:41,534 INFO L470 AbstractCegarLoop]: Abstraction has 3646 states and 12197 transitions. [2022-02-09 04:02:41,534 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:02:41,534 INFO L276 IsEmpty]: Start isEmpty. Operand 3646 states and 12197 transitions. [2022-02-09 04:02:41,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:02:41,539 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:02:41,539 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:02:41,539 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151 [2022-02-09 04:02:41,539 INFO L402 AbstractCegarLoop]: === Iteration 153 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:02:41,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:02:41,539 INFO L85 PathProgramCache]: Analyzing trace with hash -899388792, now seen corresponding path program 153 times [2022-02-09 04:02:41,539 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:02:41,539 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300456916] [2022-02-09 04:02:41,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:02:41,540 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:02:41,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:02:41,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:02:41,776 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:02:41,776 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300456916] [2022-02-09 04:02:41,776 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300456916] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:02:41,776 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:02:41,776 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:02:41,776 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533661823] [2022-02-09 04:02:41,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:02:41,776 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:02:41,776 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:02:41,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:02:41,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:02:41,777 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) [2022-02-09 04:02:42,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:02:42,936 INFO L93 Difference]: Finished difference Result 4256 states and 14065 transitions. [2022-02-09 04:02:42,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-02-09 04:02:42,936 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:02:42,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:02:42,944 INFO L225 Difference]: With dead ends: 4256 [2022-02-09 04:02:42,944 INFO L226 Difference]: Without dead ends: 4207 [2022-02-09 04:02:42,945 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 538 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=250, Invalid=2300, Unknown=0, NotChecked=0, Total=2550 [2022-02-09 04:02:42,945 INFO L933 BasicCegarLoop]: 109 mSDtfsCounter, 285 mSDsluCounter, 1393 mSDsCounter, 0 mSdLazyCounter, 1815 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 04:02:42,945 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [285 Valid, 1167 Invalid, 1869 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 1815 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 04:02:42,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4207 states. [2022-02-09 04:02:42,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4207 to 3636. [2022-02-09 04:02:42,987 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) [2022-02-09 04:02:42,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3636 states to 3636 states and 12172 transitions. [2022-02-09 04:02:42,993 INFO L78 Accepts]: Start accepts. Automaton has 3636 states and 12172 transitions. Word has length 39 [2022-02-09 04:02:42,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:02:42,993 INFO L470 AbstractCegarLoop]: Abstraction has 3636 states and 12172 transitions. [2022-02-09 04:02:42,993 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) [2022-02-09 04:02:42,993 INFO L276 IsEmpty]: Start isEmpty. Operand 3636 states and 12172 transitions. [2022-02-09 04:02:42,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:02:42,998 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:02:42,998 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] [2022-02-09 04:02:42,998 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable152 [2022-02-09 04:02:42,998 INFO L402 AbstractCegarLoop]: === Iteration 154 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:02:42,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:02:42,998 INFO L85 PathProgramCache]: Analyzing trace with hash 639486730, now seen corresponding path program 154 times [2022-02-09 04:02:42,998 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:02:42,998 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527459905] [2022-02-09 04:02:42,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:02:42,999 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:02:43,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:02:43,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:02:43,221 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:02:43,221 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527459905] [2022-02-09 04:02:43,221 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527459905] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:02:43,221 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:02:43,221 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:02:43,221 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135516261] [2022-02-09 04:02:43,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:02:43,221 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:02:43,221 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:02:43,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:02:43,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:02:43,222 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) [2022-02-09 04:02:44,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:02:44,342 INFO L93 Difference]: Finished difference Result 4279 states and 14191 transitions. [2022-02-09 04:02:44,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-09 04:02:44,342 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:02:44,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:02:44,351 INFO L225 Difference]: With dead ends: 4279 [2022-02-09 04:02:44,351 INFO L226 Difference]: Without dead ends: 4212 [2022-02-09 04:02:44,352 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 417 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=209, Invalid=1953, Unknown=0, NotChecked=0, Total=2162 [2022-02-09 04:02:44,352 INFO L933 BasicCegarLoop]: 121 mSDtfsCounter, 261 mSDsluCounter, 1384 mSDsCounter, 0 mSdLazyCounter, 1934 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 04:02:44,352 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [261 Valid, 1184 Invalid, 1979 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 1934 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 04:02:44,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4212 states. [2022-02-09 04:02:44,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4212 to 3676. [2022-02-09 04:02:44,401 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) [2022-02-09 04:02:44,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3676 states to 3676 states and 12280 transitions. [2022-02-09 04:02:44,409 INFO L78 Accepts]: Start accepts. Automaton has 3676 states and 12280 transitions. Word has length 39 [2022-02-09 04:02:44,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:02:44,409 INFO L470 AbstractCegarLoop]: Abstraction has 3676 states and 12280 transitions. [2022-02-09 04:02:44,409 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) [2022-02-09 04:02:44,409 INFO L276 IsEmpty]: Start isEmpty. Operand 3676 states and 12280 transitions. [2022-02-09 04:02:44,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:02:44,415 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:02:44,415 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:02:44,415 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable153 [2022-02-09 04:02:44,415 INFO L402 AbstractCegarLoop]: === Iteration 155 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:02:44,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:02:44,415 INFO L85 PathProgramCache]: Analyzing trace with hash 508891882, now seen corresponding path program 155 times [2022-02-09 04:02:44,415 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:02:44,415 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676917253] [2022-02-09 04:02:44,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:02:44,416 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:02:44,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:02:44,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:02:44,637 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:02:44,637 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676917253] [2022-02-09 04:02:44,637 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676917253] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:02:44,637 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:02:44,637 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:02:44,637 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836482452] [2022-02-09 04:02:44,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:02:44,638 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:02:44,638 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:02:44,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:02:44,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:02:44,638 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) [2022-02-09 04:02:45,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:02:45,739 INFO L93 Difference]: Finished difference Result 4267 states and 14151 transitions. [2022-02-09 04:02:45,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-09 04:02:45,739 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:02:45,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:02:45,747 INFO L225 Difference]: With dead ends: 4267 [2022-02-09 04:02:45,747 INFO L226 Difference]: Without dead ends: 4204 [2022-02-09 04:02:45,748 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 416 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=211, Invalid=1951, Unknown=0, NotChecked=0, Total=2162 [2022-02-09 04:02:45,748 INFO L933 BasicCegarLoop]: 122 mSDtfsCounter, 263 mSDsluCounter, 1385 mSDsCounter, 0 mSdLazyCounter, 1930 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 04:02:45,748 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [263 Valid, 1197 Invalid, 1978 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 1930 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 04:02:45,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4204 states. [2022-02-09 04:02:45,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4204 to 3668. [2022-02-09 04:02:45,789 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) [2022-02-09 04:02:45,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3668 states to 3668 states and 12256 transitions. [2022-02-09 04:02:45,796 INFO L78 Accepts]: Start accepts. Automaton has 3668 states and 12256 transitions. Word has length 39 [2022-02-09 04:02:45,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:02:45,796 INFO L470 AbstractCegarLoop]: Abstraction has 3668 states and 12256 transitions. [2022-02-09 04:02:45,796 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:02:45,796 INFO L276 IsEmpty]: Start isEmpty. Operand 3668 states and 12256 transitions. [2022-02-09 04:02:45,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:02:45,801 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:02:45,801 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:02:45,801 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable154 [2022-02-09 04:02:45,801 INFO L402 AbstractCegarLoop]: === Iteration 156 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:02:45,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:02:45,801 INFO L85 PathProgramCache]: Analyzing trace with hash -21008566, now seen corresponding path program 156 times [2022-02-09 04:02:45,801 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:02:45,801 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209830008] [2022-02-09 04:02:45,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:02:45,801 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:02:45,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:02:46,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:02:46,020 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:02:46,020 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209830008] [2022-02-09 04:02:46,020 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209830008] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:02:46,020 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:02:46,020 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:02:46,020 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531281157] [2022-02-09 04:02:46,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:02:46,020 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:02:46,020 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:02:46,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:02:46,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:02:46,021 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) [2022-02-09 04:02:47,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:02:47,124 INFO L93 Difference]: Finished difference Result 4279 states and 14179 transitions. [2022-02-09 04:02:47,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-09 04:02:47,125 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:02:47,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:02:47,133 INFO L225 Difference]: With dead ends: 4279 [2022-02-09 04:02:47,133 INFO L226 Difference]: Without dead ends: 4140 [2022-02-09 04:02:47,133 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 415 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=207, Invalid=1955, Unknown=0, NotChecked=0, Total=2162 [2022-02-09 04:02:47,133 INFO L933 BasicCegarLoop]: 127 mSDtfsCounter, 262 mSDsluCounter, 1451 mSDsCounter, 0 mSdLazyCounter, 1949 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 04:02:47,133 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [262 Valid, 1269 Invalid, 1993 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 1949 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 04:02:47,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4140 states. [2022-02-09 04:02:47,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4140 to 3616. [2022-02-09 04:02:47,174 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) [2022-02-09 04:02:47,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3616 states to 3616 states and 12100 transitions. [2022-02-09 04:02:47,180 INFO L78 Accepts]: Start accepts. Automaton has 3616 states and 12100 transitions. Word has length 39 [2022-02-09 04:02:47,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:02:47,181 INFO L470 AbstractCegarLoop]: Abstraction has 3616 states and 12100 transitions. [2022-02-09 04:02:47,181 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:02:47,181 INFO L276 IsEmpty]: Start isEmpty. Operand 3616 states and 12100 transitions. [2022-02-09 04:02:47,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:02:47,185 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:02:47,185 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] [2022-02-09 04:02:47,185 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable155 [2022-02-09 04:02:47,185 INFO L402 AbstractCegarLoop]: === Iteration 157 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:02:47,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:02:47,186 INFO L85 PathProgramCache]: Analyzing trace with hash -1398936488, now seen corresponding path program 157 times [2022-02-09 04:02:47,186 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:02:47,186 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294896997] [2022-02-09 04:02:47,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:02:47,186 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:02:47,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:02:47,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:02:47,404 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:02:47,404 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294896997] [2022-02-09 04:02:47,404 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294896997] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:02:47,404 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:02:47,404 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:02:47,404 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957988078] [2022-02-09 04:02:47,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:02:47,404 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:02:47,404 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:02:47,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:02:47,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:02:47,404 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) [2022-02-09 04:02:48,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:02:48,382 INFO L93 Difference]: Finished difference Result 4091 states and 13567 transitions. [2022-02-09 04:02:48,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-02-09 04:02:48,382 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 [2022-02-09 04:02:48,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:02:48,390 INFO L225 Difference]: With dead ends: 4091 [2022-02-09 04:02:48,390 INFO L226 Difference]: Without dead ends: 4024 [2022-02-09 04:02:48,390 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 391 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=202, Invalid=1868, Unknown=0, NotChecked=0, Total=2070 [2022-02-09 04:02:48,391 INFO L933 BasicCegarLoop]: 111 mSDtfsCounter, 231 mSDsluCounter, 1327 mSDsCounter, 0 mSdLazyCounter, 1649 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.5s IncrementalHoareTripleChecker+Time [2022-02-09 04:02:48,391 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [231 Valid, 1116 Invalid, 1687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1649 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-09 04:02:48,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4024 states. [2022-02-09 04:02:48,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4024 to 3668. [2022-02-09 04:02:48,431 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) [2022-02-09 04:02:48,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3668 states to 3668 states and 12236 transitions. [2022-02-09 04:02:48,438 INFO L78 Accepts]: Start accepts. Automaton has 3668 states and 12236 transitions. Word has length 39 [2022-02-09 04:02:48,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:02:48,438 INFO L470 AbstractCegarLoop]: Abstraction has 3668 states and 12236 transitions. [2022-02-09 04:02:48,438 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:02:48,438 INFO L276 IsEmpty]: Start isEmpty. Operand 3668 states and 12236 transitions. [2022-02-09 04:02:48,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:02:48,443 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:02:48,443 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:02:48,443 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable156 [2022-02-09 04:02:48,443 INFO L402 AbstractCegarLoop]: === Iteration 158 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:02:48,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:02:48,443 INFO L85 PathProgramCache]: Analyzing trace with hash -1571079706, now seen corresponding path program 158 times [2022-02-09 04:02:48,443 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:02:48,443 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967695272] [2022-02-09 04:02:48,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:02:48,443 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:02:48,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:02:48,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:02:48,673 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:02:48,673 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967695272] [2022-02-09 04:02:48,673 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967695272] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:02:48,673 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:02:48,674 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:02:48,674 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150684993] [2022-02-09 04:02:48,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:02:48,674 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:02:48,674 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:02:48,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:02:48,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:02:48,674 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) [2022-02-09 04:02:49,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:02:49,697 INFO L93 Difference]: Finished difference Result 4079 states and 13527 transitions. [2022-02-09 04:02:49,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-09 04:02:49,698 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:02:49,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:02:49,706 INFO L225 Difference]: With dead ends: 4079 [2022-02-09 04:02:49,707 INFO L226 Difference]: Without dead ends: 4016 [2022-02-09 04:02:49,707 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 392 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=200, Invalid=1870, Unknown=0, NotChecked=0, Total=2070 [2022-02-09 04:02:49,707 INFO L933 BasicCegarLoop]: 113 mSDtfsCounter, 230 mSDsluCounter, 1351 mSDsCounter, 0 mSdLazyCounter, 1656 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 04:02:49,707 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [230 Valid, 1143 Invalid, 1696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1656 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 04:02:49,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4016 states. [2022-02-09 04:02:49,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4016 to 3660. [2022-02-09 04:02:49,757 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) [2022-02-09 04:02:49,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3660 states to 3660 states and 12212 transitions. [2022-02-09 04:02:49,765 INFO L78 Accepts]: Start accepts. Automaton has 3660 states and 12212 transitions. Word has length 39 [2022-02-09 04:02:49,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:02:49,765 INFO L470 AbstractCegarLoop]: Abstraction has 3660 states and 12212 transitions. [2022-02-09 04:02:49,765 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:02:49,765 INFO L276 IsEmpty]: Start isEmpty. Operand 3660 states and 12212 transitions. [2022-02-09 04:02:49,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:02:49,771 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:02:49,771 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:02:49,771 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable157 [2022-02-09 04:02:49,771 INFO L402 AbstractCegarLoop]: === Iteration 159 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:02:49,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:02:49,771 INFO L85 PathProgramCache]: Analyzing trace with hash 921053434, now seen corresponding path program 159 times [2022-02-09 04:02:49,771 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:02:49,771 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585620126] [2022-02-09 04:02:49,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:02:49,771 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:02:49,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:02:50,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:02:50,046 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:02:50,046 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585620126] [2022-02-09 04:02:50,046 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585620126] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:02:50,046 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:02:50,046 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:02:50,046 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96156079] [2022-02-09 04:02:50,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:02:50,047 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:02:50,047 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:02:50,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:02:50,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:02:50,047 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) [2022-02-09 04:02:51,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:02:51,034 INFO L93 Difference]: Finished difference Result 4079 states and 13519 transitions. [2022-02-09 04:02:51,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-09 04:02:51,034 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:02:51,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:02:51,043 INFO L225 Difference]: With dead ends: 4079 [2022-02-09 04:02:51,043 INFO L226 Difference]: Without dead ends: 3936 [2022-02-09 04:02:51,043 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 391 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=197, Invalid=1873, Unknown=0, NotChecked=0, Total=2070 [2022-02-09 04:02:51,044 INFO L933 BasicCegarLoop]: 119 mSDtfsCounter, 222 mSDsluCounter, 1417 mSDsCounter, 0 mSdLazyCounter, 1667 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.5s IncrementalHoareTripleChecker+Time [2022-02-09 04:02:51,044 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [222 Valid, 1216 Invalid, 1703 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1667 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-09 04:02:51,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3936 states. [2022-02-09 04:02:51,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3936 to 3608. [2022-02-09 04:02:51,089 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) [2022-02-09 04:02:51,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3608 states to 3608 states and 12080 transitions. [2022-02-09 04:02:51,127 INFO L78 Accepts]: Start accepts. Automaton has 3608 states and 12080 transitions. Word has length 39 [2022-02-09 04:02:51,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:02:51,127 INFO L470 AbstractCegarLoop]: Abstraction has 3608 states and 12080 transitions. [2022-02-09 04:02:51,127 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:02:51,127 INFO L276 IsEmpty]: Start isEmpty. Operand 3608 states and 12080 transitions. [2022-02-09 04:02:51,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:02:51,133 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:02:51,133 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] [2022-02-09 04:02:51,133 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable158 [2022-02-09 04:02:51,133 INFO L402 AbstractCegarLoop]: === Iteration 160 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:02:51,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:02:51,133 INFO L85 PathProgramCache]: Analyzing trace with hash 1947592984, now seen corresponding path program 160 times [2022-02-09 04:02:51,133 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:02:51,133 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867736315] [2022-02-09 04:02:51,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:02:51,133 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:02:51,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:02:51,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:02:51,333 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:02:51,333 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867736315] [2022-02-09 04:02:51,333 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867736315] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:02:51,333 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:02:51,333 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-09 04:02:51,333 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254547527] [2022-02-09 04:02:51,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:02:51,333 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-02-09 04:02:51,333 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:02:51,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-02-09 04:02:51,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2022-02-09 04:02:51,334 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) [2022-02-09 04:02:52,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:02:52,345 INFO L93 Difference]: Finished difference Result 4099 states and 13671 transitions. [2022-02-09 04:02:52,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-09 04:02:52,345 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 [2022-02-09 04:02:52,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:02:52,354 INFO L225 Difference]: With dead ends: 4099 [2022-02-09 04:02:52,354 INFO L226 Difference]: Without dead ends: 4032 [2022-02-09 04:02:52,354 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 [2022-02-09 04:02:52,355 INFO L933 BasicCegarLoop]: 115 mSDtfsCounter, 239 mSDsluCounter, 1106 mSDsCounter, 0 mSdLazyCounter, 1552 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.5s IncrementalHoareTripleChecker+Time [2022-02-09 04:02:52,355 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [239 Valid, 947 Invalid, 1589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1552 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-09 04:02:52,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4032 states. [2022-02-09 04:02:52,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4032 to 3700. [2022-02-09 04:02:52,404 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) [2022-02-09 04:02:52,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3700 states to 3700 states and 12380 transitions. [2022-02-09 04:02:52,412 INFO L78 Accepts]: Start accepts. Automaton has 3700 states and 12380 transitions. Word has length 39 [2022-02-09 04:02:52,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:02:52,412 INFO L470 AbstractCegarLoop]: Abstraction has 3700 states and 12380 transitions. [2022-02-09 04:02:52,412 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) [2022-02-09 04:02:52,412 INFO L276 IsEmpty]: Start isEmpty. Operand 3700 states and 12380 transitions. [2022-02-09 04:02:52,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:02:52,418 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:02:52,418 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:02:52,418 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable159 [2022-02-09 04:02:52,418 INFO L402 AbstractCegarLoop]: === Iteration 161 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:02:52,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:02:52,418 INFO L85 PathProgramCache]: Analyzing trace with hash 227977014, now seen corresponding path program 161 times [2022-02-09 04:02:52,418 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:02:52,418 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433967491] [2022-02-09 04:02:52,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:02:52,418 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:02:52,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:02:52,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:02:52,621 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:02:52,621 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433967491] [2022-02-09 04:02:52,621 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433967491] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:02:52,621 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:02:52,621 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-09 04:02:52,621 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215694063] [2022-02-09 04:02:52,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:02:52,622 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-02-09 04:02:52,622 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:02:52,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-02-09 04:02:52,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2022-02-09 04:02:52,622 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) [2022-02-09 04:02:54,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:02:54,007 INFO L93 Difference]: Finished difference Result 4203 states and 13962 transitions. [2022-02-09 04:02:54,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-02-09 04:02:54,008 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 [2022-02-09 04:02:54,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:02:54,016 INFO L225 Difference]: With dead ends: 4203 [2022-02-09 04:02:54,016 INFO L226 Difference]: Without dead ends: 4160 [2022-02-09 04:02:54,017 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 792 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=291, Invalid=2789, Unknown=0, NotChecked=0, Total=3080 [2022-02-09 04:02:54,017 INFO L933 BasicCegarLoop]: 122 mSDtfsCounter, 329 mSDsluCounter, 1224 mSDsCounter, 0 mSdLazyCounter, 1843 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 04:02:54,017 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [329 Valid, 1043 Invalid, 1901 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 1843 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 04:02:54,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4160 states. [2022-02-09 04:02:54,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4160 to 3706. [2022-02-09 04:02:54,066 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) [2022-02-09 04:02:54,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3706 states to 3706 states and 12393 transitions. [2022-02-09 04:02:54,074 INFO L78 Accepts]: Start accepts. Automaton has 3706 states and 12393 transitions. Word has length 39 [2022-02-09 04:02:54,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:02:54,074 INFO L470 AbstractCegarLoop]: Abstraction has 3706 states and 12393 transitions. [2022-02-09 04:02:54,074 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) [2022-02-09 04:02:54,074 INFO L276 IsEmpty]: Start isEmpty. Operand 3706 states and 12393 transitions. [2022-02-09 04:02:54,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:02:54,080 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:02:54,080 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] [2022-02-09 04:02:54,080 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable160 [2022-02-09 04:02:54,080 INFO L402 AbstractCegarLoop]: === Iteration 162 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:02:54,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:02:54,080 INFO L85 PathProgramCache]: Analyzing trace with hash -1552621288, now seen corresponding path program 162 times [2022-02-09 04:02:54,080 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:02:54,080 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091558350] [2022-02-09 04:02:54,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:02:54,080 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:02:54,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:02:54,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:02:54,272 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:02:54,273 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091558350] [2022-02-09 04:02:54,273 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091558350] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:02:54,273 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:02:54,273 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-09 04:02:54,273 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163215381] [2022-02-09 04:02:54,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:02:54,273 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-02-09 04:02:54,273 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:02:54,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-02-09 04:02:54,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2022-02-09 04:02:54,273 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) [2022-02-09 04:02:55,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:02:55,589 INFO L93 Difference]: Finished difference Result 4134 states and 13782 transitions. [2022-02-09 04:02:55,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-02-09 04:02:55,589 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 [2022-02-09 04:02:55,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:02:55,598 INFO L225 Difference]: With dead ends: 4134 [2022-02-09 04:02:55,598 INFO L226 Difference]: Without dead ends: 4070 [2022-02-09 04:02:55,599 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 751 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=284, Invalid=2686, Unknown=0, NotChecked=0, Total=2970 [2022-02-09 04:02:55,599 INFO L933 BasicCegarLoop]: 118 mSDtfsCounter, 306 mSDsluCounter, 1186 mSDsCounter, 0 mSdLazyCounter, 1775 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 04:02:55,599 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [306 Valid, 1014 Invalid, 1831 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1775 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 04:02:55,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4070 states. [2022-02-09 04:02:55,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4070 to 3688. [2022-02-09 04:02:55,650 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) [2022-02-09 04:02:55,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3688 states to 3688 states and 12342 transitions. [2022-02-09 04:02:55,658 INFO L78 Accepts]: Start accepts. Automaton has 3688 states and 12342 transitions. Word has length 39 [2022-02-09 04:02:55,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:02:55,658 INFO L470 AbstractCegarLoop]: Abstraction has 3688 states and 12342 transitions. [2022-02-09 04:02:55,658 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) [2022-02-09 04:02:55,658 INFO L276 IsEmpty]: Start isEmpty. Operand 3688 states and 12342 transitions. [2022-02-09 04:02:55,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:02:55,664 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:02:55,664 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] [2022-02-09 04:02:55,664 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable161 [2022-02-09 04:02:55,664 INFO L402 AbstractCegarLoop]: === Iteration 163 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:02:55,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:02:55,664 INFO L85 PathProgramCache]: Analyzing trace with hash -1961436904, now seen corresponding path program 163 times [2022-02-09 04:02:55,664 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:02:55,664 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519485607] [2022-02-09 04:02:55,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:02:55,664 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:02:55,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:02:55,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:02:55,856 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:02:55,856 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519485607] [2022-02-09 04:02:55,856 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519485607] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:02:55,856 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:02:55,856 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-09 04:02:55,856 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366953747] [2022-02-09 04:02:55,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:02:55,856 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-02-09 04:02:55,856 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:02:55,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-02-09 04:02:55,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2022-02-09 04:02:55,857 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) [2022-02-09 04:02:57,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:02:57,172 INFO L93 Difference]: Finished difference Result 4145 states and 13790 transitions. [2022-02-09 04:02:57,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-02-09 04:02:57,173 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 [2022-02-09 04:02:57,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:02:57,181 INFO L225 Difference]: With dead ends: 4145 [2022-02-09 04:02:57,182 INFO L226 Difference]: Without dead ends: 4015 [2022-02-09 04:02:57,182 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 639 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=255, Invalid=2397, Unknown=0, NotChecked=0, Total=2652 [2022-02-09 04:02:57,182 INFO L933 BasicCegarLoop]: 130 mSDtfsCounter, 288 mSDsluCounter, 1265 mSDsCounter, 0 mSdLazyCounter, 1912 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 04:02:57,182 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [288 Valid, 1074 Invalid, 1962 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 1912 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 04:02:57,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4015 states. [2022-02-09 04:02:57,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4015 to 3664. [2022-02-09 04:02:57,233 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) [2022-02-09 04:02:57,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3664 states to 3664 states and 12270 transitions. [2022-02-09 04:02:57,242 INFO L78 Accepts]: Start accepts. Automaton has 3664 states and 12270 transitions. Word has length 39 [2022-02-09 04:02:57,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:02:57,242 INFO L470 AbstractCegarLoop]: Abstraction has 3664 states and 12270 transitions. [2022-02-09 04:02:57,242 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) [2022-02-09 04:02:57,242 INFO L276 IsEmpty]: Start isEmpty. Operand 3664 states and 12270 transitions. [2022-02-09 04:02:57,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:02:57,248 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:02:57,248 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] [2022-02-09 04:02:57,248 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable162 [2022-02-09 04:02:57,248 INFO L402 AbstractCegarLoop]: === Iteration 164 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:02:57,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:02:57,248 INFO L85 PathProgramCache]: Analyzing trace with hash -123485052, now seen corresponding path program 164 times [2022-02-09 04:02:57,248 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:02:57,248 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588351309] [2022-02-09 04:02:57,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:02:57,248 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:02:57,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:02:57,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:02:57,465 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:02:57,466 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588351309] [2022-02-09 04:02:57,466 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588351309] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:02:57,466 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:02:57,466 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:02:57,466 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314959838] [2022-02-09 04:02:57,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:02:57,466 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:02:57,466 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:02:57,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:02:57,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:02:57,466 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) [2022-02-09 04:02:58,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:02:58,633 INFO L93 Difference]: Finished difference Result 4129 states and 13740 transitions. [2022-02-09 04:02:58,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-02-09 04:02:58,633 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 [2022-02-09 04:02:58,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:02:58,641 INFO L225 Difference]: With dead ends: 4129 [2022-02-09 04:02:58,641 INFO L226 Difference]: Without dead ends: 4062 [2022-02-09 04:02:58,642 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 609 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=258, Invalid=2394, Unknown=0, NotChecked=0, Total=2652 [2022-02-09 04:02:58,642 INFO L933 BasicCegarLoop]: 121 mSDtfsCounter, 261 mSDsluCounter, 1255 mSDsCounter, 0 mSdLazyCounter, 1704 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 04:02:58,642 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [261 Valid, 1093 Invalid, 1757 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 1704 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 04:02:58,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4062 states. [2022-02-09 04:02:58,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4062 to 3680. [2022-02-09 04:02:58,685 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) [2022-02-09 04:02:58,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3680 states to 3680 states and 12310 transitions. [2022-02-09 04:02:58,692 INFO L78 Accepts]: Start accepts. Automaton has 3680 states and 12310 transitions. Word has length 39 [2022-02-09 04:02:58,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:02:58,692 INFO L470 AbstractCegarLoop]: Abstraction has 3680 states and 12310 transitions. [2022-02-09 04:02:58,692 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) [2022-02-09 04:02:58,693 INFO L276 IsEmpty]: Start isEmpty. Operand 3680 states and 12310 transitions. [2022-02-09 04:02:58,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:02:58,697 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:02:58,697 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] [2022-02-09 04:02:58,697 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable163 [2022-02-09 04:02:58,698 INFO L402 AbstractCegarLoop]: === Iteration 165 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:02:58,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:02:58,698 INFO L85 PathProgramCache]: Analyzing trace with hash -1843101022, now seen corresponding path program 165 times [2022-02-09 04:02:58,698 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:02:58,698 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987184877] [2022-02-09 04:02:58,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:02:58,698 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:02:58,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:02:58,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:02:58,922 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:02:58,922 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987184877] [2022-02-09 04:02:58,922 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987184877] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:02:58,922 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:02:58,922 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:02:58,922 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92285613] [2022-02-09 04:02:58,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:02:58,922 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:02:58,922 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:02:58,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:02:58,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:02:58,923 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) [2022-02-09 04:03:00,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:03:00,488 INFO L93 Difference]: Finished difference Result 4266 states and 14097 transitions. [2022-02-09 04:03:00,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-02-09 04:03:00,488 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 [2022-02-09 04:03:00,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:03:00,497 INFO L225 Difference]: With dead ends: 4266 [2022-02-09 04:03:00,497 INFO L226 Difference]: Without dead ends: 4223 [2022-02-09 04:03:00,498 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1041 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=352, Invalid=3554, Unknown=0, NotChecked=0, Total=3906 [2022-02-09 04:03:00,498 INFO L933 BasicCegarLoop]: 127 mSDtfsCounter, 351 mSDsluCounter, 1386 mSDsCounter, 0 mSdLazyCounter, 2011 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.7s IncrementalHoareTripleChecker+Time [2022-02-09 04:03:00,498 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [351 Valid, 1193 Invalid, 2085 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 2011 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-09 04:03:00,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4223 states. [2022-02-09 04:03:00,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4223 to 3686. [2022-02-09 04:03:00,545 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) [2022-02-09 04:03:00,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3686 states to 3686 states and 12323 transitions. [2022-02-09 04:03:00,552 INFO L78 Accepts]: Start accepts. Automaton has 3686 states and 12323 transitions. Word has length 39 [2022-02-09 04:03:00,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:03:00,552 INFO L470 AbstractCegarLoop]: Abstraction has 3686 states and 12323 transitions. [2022-02-09 04:03:00,553 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) [2022-02-09 04:03:00,553 INFO L276 IsEmpty]: Start isEmpty. Operand 3686 states and 12323 transitions. [2022-02-09 04:03:00,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:03:00,558 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:03:00,558 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] [2022-02-09 04:03:00,558 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable164 [2022-02-09 04:03:00,558 INFO L402 AbstractCegarLoop]: === Iteration 166 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:03:00,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:03:00,558 INFO L85 PathProgramCache]: Analyzing trace with hash 671267972, now seen corresponding path program 166 times [2022-02-09 04:03:00,558 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:03:00,558 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768537579] [2022-02-09 04:03:00,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:03:00,558 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:03:00,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:03:00,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:03:00,761 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:03:00,761 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768537579] [2022-02-09 04:03:00,761 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768537579] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:03:00,761 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:03:00,761 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:03:00,761 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683338751] [2022-02-09 04:03:00,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:03:00,761 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:03:00,761 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:03:00,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:03:00,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:03:00,762 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) [2022-02-09 04:03:02,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:03:02,260 INFO L93 Difference]: Finished difference Result 4197 states and 13917 transitions. [2022-02-09 04:03:02,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-02-09 04:03:02,260 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 [2022-02-09 04:03:02,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:03:02,268 INFO L225 Difference]: With dead ends: 4197 [2022-02-09 04:03:02,268 INFO L226 Difference]: Without dead ends: 4133 [2022-02-09 04:03:02,268 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 [2022-02-09 04:03:02,269 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 [2022-02-09 04:03:02,269 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] [2022-02-09 04:03:02,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4133 states. [2022-02-09 04:03:02,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4133 to 3668. [2022-02-09 04:03:02,309 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) [2022-02-09 04:03:02,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3668 states to 3668 states and 12280 transitions. [2022-02-09 04:03:02,316 INFO L78 Accepts]: Start accepts. Automaton has 3668 states and 12280 transitions. Word has length 39 [2022-02-09 04:03:02,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:03:02,316 INFO L470 AbstractCegarLoop]: Abstraction has 3668 states and 12280 transitions. [2022-02-09 04:03:02,316 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) [2022-02-09 04:03:02,316 INFO L276 IsEmpty]: Start isEmpty. Operand 3668 states and 12280 transitions. [2022-02-09 04:03:02,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:03:02,321 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:03:02,321 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] [2022-02-09 04:03:02,321 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable165 [2022-02-09 04:03:02,321 INFO L402 AbstractCegarLoop]: === Iteration 167 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:03:02,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:03:02,321 INFO L85 PathProgramCache]: Analyzing trace with hash 1291702372, now seen corresponding path program 167 times [2022-02-09 04:03:02,321 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:03:02,321 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949545718] [2022-02-09 04:03:02,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:03:02,321 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:03:02,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:03:02,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:03:02,646 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:03:02,646 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949545718] [2022-02-09 04:03:02,646 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949545718] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:03:02,646 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:03:02,646 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:03:02,647 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955099141] [2022-02-09 04:03:02,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:03:02,647 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:03:02,647 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:03:02,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:03:02,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:03:02,647 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) [2022-02-09 04:03:03,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:03:03,618 INFO L93 Difference]: Finished difference Result 4015 states and 13375 transitions. [2022-02-09 04:03:03,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-09 04:03:03,618 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 [2022-02-09 04:03:03,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:03:03,626 INFO L225 Difference]: With dead ends: 4015 [2022-02-09 04:03:03,626 INFO L226 Difference]: Without dead ends: 3948 [2022-02-09 04:03:03,626 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 418 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=211, Invalid=1859, Unknown=0, NotChecked=0, Total=2070 [2022-02-09 04:03:03,626 INFO L933 BasicCegarLoop]: 104 mSDtfsCounter, 223 mSDsluCounter, 1119 mSDsCounter, 0 mSdLazyCounter, 1560 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.5s IncrementalHoareTripleChecker+Time [2022-02-09 04:03:03,627 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [223 Valid, 930 Invalid, 1599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1560 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-09 04:03:03,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3948 states. [2022-02-09 04:03:03,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3948 to 3676. [2022-02-09 04:03:03,667 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) [2022-02-09 04:03:03,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3676 states to 3676 states and 12296 transitions. [2022-02-09 04:03:03,674 INFO L78 Accepts]: Start accepts. Automaton has 3676 states and 12296 transitions. Word has length 39 [2022-02-09 04:03:03,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:03:03,674 INFO L470 AbstractCegarLoop]: Abstraction has 3676 states and 12296 transitions. [2022-02-09 04:03:03,674 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) [2022-02-09 04:03:03,674 INFO L276 IsEmpty]: Start isEmpty. Operand 3676 states and 12296 transitions. [2022-02-09 04:03:03,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:03:03,679 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:03:03,679 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:03:03,679 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable166 [2022-02-09 04:03:03,679 INFO L402 AbstractCegarLoop]: === Iteration 168 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:03:03,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:03:03,681 INFO L85 PathProgramCache]: Analyzing trace with hash 1161107524, now seen corresponding path program 168 times [2022-02-09 04:03:03,681 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:03:03,681 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044759782] [2022-02-09 04:03:03,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:03:03,681 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:03:03,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:03:03,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:03:03,886 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:03:03,886 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044759782] [2022-02-09 04:03:03,886 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044759782] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:03:03,886 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:03:03,886 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:03:03,886 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528413077] [2022-02-09 04:03:03,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:03:03,886 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:03:03,886 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:03:03,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:03:03,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:03:03,887 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) [2022-02-09 04:03:04,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:03:04,877 INFO L93 Difference]: Finished difference Result 4003 states and 13335 transitions. [2022-02-09 04:03:04,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-09 04:03:04,878 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 [2022-02-09 04:03:04,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:03:04,885 INFO L225 Difference]: With dead ends: 4003 [2022-02-09 04:03:04,885 INFO L226 Difference]: Without dead ends: 3940 [2022-02-09 04:03:04,885 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 [2022-02-09 04:03:04,886 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, 0.5s IncrementalHoareTripleChecker+Time [2022-02-09 04:03:04,886 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [237 Valid, 941 Invalid, 1586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1546 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-09 04:03:04,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3940 states. [2022-02-09 04:03:04,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3940 to 3668. [2022-02-09 04:03:04,924 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) [2022-02-09 04:03:04,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3668 states to 3668 states and 12276 transitions. [2022-02-09 04:03:04,931 INFO L78 Accepts]: Start accepts. Automaton has 3668 states and 12276 transitions. Word has length 39 [2022-02-09 04:03:04,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:03:04,931 INFO L470 AbstractCegarLoop]: Abstraction has 3668 states and 12276 transitions. [2022-02-09 04:03:04,931 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) [2022-02-09 04:03:04,931 INFO L276 IsEmpty]: Start isEmpty. Operand 3668 states and 12276 transitions. [2022-02-09 04:03:04,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:03:04,936 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:03:04,936 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:03:04,936 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable167 [2022-02-09 04:03:04,936 INFO L402 AbstractCegarLoop]: === Iteration 169 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:03:04,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:03:04,936 INFO L85 PathProgramCache]: Analyzing trace with hash 1025428932, now seen corresponding path program 169 times [2022-02-09 04:03:04,936 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:03:04,936 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328584886] [2022-02-09 04:03:04,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:03:04,936 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:03:04,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:03:05,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:03:05,137 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:03:05,137 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328584886] [2022-02-09 04:03:05,137 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328584886] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:03:05,137 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:03:05,137 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:03:05,137 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254996008] [2022-02-09 04:03:05,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:03:05,137 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:03:05,137 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:03:05,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:03:05,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:03:05,137 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) [2022-02-09 04:03:06,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:03:06,489 INFO L93 Difference]: Finished difference Result 4137 states and 13670 transitions. [2022-02-09 04:03:06,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-02-09 04:03:06,489 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 [2022-02-09 04:03:06,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:03:06,497 INFO L225 Difference]: With dead ends: 4137 [2022-02-09 04:03:06,498 INFO L226 Difference]: Without dead ends: 4094 [2022-02-09 04:03:06,498 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 [2022-02-09 04:03:06,498 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 [2022-02-09 04:03:06,498 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] [2022-02-09 04:03:06,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4094 states. [2022-02-09 04:03:06,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4094 to 3676. [2022-02-09 04:03:06,541 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) [2022-02-09 04:03:06,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3676 states to 3676 states and 12296 transitions. [2022-02-09 04:03:06,547 INFO L78 Accepts]: Start accepts. Automaton has 3676 states and 12296 transitions. Word has length 39 [2022-02-09 04:03:06,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:03:06,548 INFO L470 AbstractCegarLoop]: Abstraction has 3676 states and 12296 transitions. [2022-02-09 04:03:06,548 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) [2022-02-09 04:03:06,548 INFO L276 IsEmpty]: Start isEmpty. Operand 3676 states and 12296 transitions. [2022-02-09 04:03:06,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:03:06,552 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:03:06,552 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] [2022-02-09 04:03:06,553 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable168 [2022-02-09 04:03:06,553 INFO L402 AbstractCegarLoop]: === Iteration 170 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:03:06,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:03:06,553 INFO L85 PathProgramCache]: Analyzing trace with hash -755169370, now seen corresponding path program 170 times [2022-02-09 04:03:06,553 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:03:06,553 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747683255] [2022-02-09 04:03:06,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:03:06,553 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:03:06,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:03:06,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:03:06,756 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:03:06,756 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747683255] [2022-02-09 04:03:06,756 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747683255] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:03:06,756 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:03:06,756 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:03:06,756 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306851887] [2022-02-09 04:03:06,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:03:06,756 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:03:06,756 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:03:06,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:03:06,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:03:06,756 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) [2022-02-09 04:03:08,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:03:08,073 INFO L93 Difference]: Finished difference Result 4125 states and 13632 transitions. [2022-02-09 04:03:08,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-02-09 04:03:08,073 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 [2022-02-09 04:03:08,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:03:08,081 INFO L225 Difference]: With dead ends: 4125 [2022-02-09 04:03:08,081 INFO L226 Difference]: Without dead ends: 4073 [2022-02-09 04:03:08,082 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 786 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=306, Invalid=2886, Unknown=0, NotChecked=0, Total=3192 [2022-02-09 04:03:08,082 INFO L933 BasicCegarLoop]: 103 mSDtfsCounter, 318 mSDsluCounter, 1159 mSDsCounter, 0 mSdLazyCounter, 1748 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 04:03:08,082 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [318 Valid, 960 Invalid, 1806 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 1748 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 04:03:08,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4073 states. [2022-02-09 04:03:08,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4073 to 3668. [2022-02-09 04:03:08,124 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) [2022-02-09 04:03:08,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3668 states to 3668 states and 12276 transitions. [2022-02-09 04:03:08,130 INFO L78 Accepts]: Start accepts. Automaton has 3668 states and 12276 transitions. Word has length 39 [2022-02-09 04:03:08,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:03:08,130 INFO L470 AbstractCegarLoop]: Abstraction has 3668 states and 12276 transitions. [2022-02-09 04:03:08,130 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) [2022-02-09 04:03:08,130 INFO L276 IsEmpty]: Start isEmpty. Operand 3668 states and 12276 transitions. [2022-02-09 04:03:08,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:03:08,135 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:03:08,135 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:03:08,135 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable169 [2022-02-09 04:03:08,135 INFO L402 AbstractCegarLoop]: === Iteration 171 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:03:08,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:03:08,135 INFO L85 PathProgramCache]: Analyzing trace with hash 1943912502, now seen corresponding path program 171 times [2022-02-09 04:03:08,135 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:03:08,136 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773657534] [2022-02-09 04:03:08,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:03:08,136 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:03:08,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:03:08,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:03:08,355 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:03:08,355 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773657534] [2022-02-09 04:03:08,355 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773657534] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:03:08,355 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:03:08,355 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:03:08,355 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402854628] [2022-02-09 04:03:08,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:03:08,355 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:03:08,355 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:03:08,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:03:08,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:03:08,356 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) [2022-02-09 04:03:09,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:03:09,409 INFO L93 Difference]: Finished difference Result 4090 states and 13523 transitions. [2022-02-09 04:03:09,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-02-09 04:03:09,410 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 [2022-02-09 04:03:09,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:03:09,418 INFO L225 Difference]: With dead ends: 4090 [2022-02-09 04:03:09,418 INFO L226 Difference]: Without dead ends: 4035 [2022-02-09 04:03:09,418 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 [2022-02-09 04:03:09,418 INFO L933 BasicCegarLoop]: 103 mSDtfsCounter, 266 mSDsluCounter, 1148 mSDsCounter, 0 mSdLazyCounter, 1601 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.5s IncrementalHoareTripleChecker+Time [2022-02-09 04:03:09,418 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [266 Valid, 933 Invalid, 1644 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 1601 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-09 04:03:09,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4035 states. [2022-02-09 04:03:09,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4035 to 3670. [2022-02-09 04:03:09,460 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) [2022-02-09 04:03:09,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3670 states to 3670 states and 12279 transitions. [2022-02-09 04:03:09,467 INFO L78 Accepts]: Start accepts. Automaton has 3670 states and 12279 transitions. Word has length 39 [2022-02-09 04:03:09,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:03:09,467 INFO L470 AbstractCegarLoop]: Abstraction has 3670 states and 12279 transitions. [2022-02-09 04:03:09,467 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) [2022-02-09 04:03:09,467 INFO L276 IsEmpty]: Start isEmpty. Operand 3670 states and 12279 transitions. [2022-02-09 04:03:09,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:03:09,472 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:03:09,472 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:03:09,472 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable170 [2022-02-09 04:03:09,472 INFO L402 AbstractCegarLoop]: === Iteration 172 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:03:09,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:03:09,472 INFO L85 PathProgramCache]: Analyzing trace with hash -1178402572, now seen corresponding path program 172 times [2022-02-09 04:03:09,472 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:03:09,472 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107658062] [2022-02-09 04:03:09,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:03:09,472 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:03:09,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:03:09,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:03:09,710 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:03:09,710 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107658062] [2022-02-09 04:03:09,710 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107658062] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:03:09,710 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:03:09,710 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:03:09,710 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842753453] [2022-02-09 04:03:09,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:03:09,711 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:03:09,711 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:03:09,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:03:09,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:03:09,711 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) [2022-02-09 04:03:10,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:03:10,728 INFO L93 Difference]: Finished difference Result 4000 states and 13325 transitions. [2022-02-09 04:03:10,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-02-09 04:03:10,728 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 [2022-02-09 04:03:10,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:03:10,736 INFO L225 Difference]: With dead ends: 4000 [2022-02-09 04:03:10,737 INFO L226 Difference]: Without dead ends: 3936 [2022-02-09 04:03:10,737 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 444 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=224, Invalid=1938, Unknown=0, NotChecked=0, Total=2162 [2022-02-09 04:03:10,737 INFO L933 BasicCegarLoop]: 103 mSDtfsCounter, 230 mSDsluCounter, 1136 mSDsCounter, 0 mSdLazyCounter, 1552 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.5s IncrementalHoareTripleChecker+Time [2022-02-09 04:03:10,737 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [230 Valid, 938 Invalid, 1590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1552 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-09 04:03:10,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3936 states. [2022-02-09 04:03:10,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3936 to 3664. [2022-02-09 04:03:10,783 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) [2022-02-09 04:03:10,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3664 states to 3664 states and 12266 transitions. [2022-02-09 04:03:10,791 INFO L78 Accepts]: Start accepts. Automaton has 3664 states and 12266 transitions. Word has length 39 [2022-02-09 04:03:10,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:03:10,791 INFO L470 AbstractCegarLoop]: Abstraction has 3664 states and 12266 transitions. [2022-02-09 04:03:10,791 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) [2022-02-09 04:03:10,791 INFO L276 IsEmpty]: Start isEmpty. Operand 3664 states and 12266 transitions. [2022-02-09 04:03:10,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:03:10,796 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:03:10,796 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:03:10,796 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable171 [2022-02-09 04:03:10,797 INFO L402 AbstractCegarLoop]: === Iteration 173 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:03:10,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:03:10,797 INFO L85 PathProgramCache]: Analyzing trace with hash 1063645750, now seen corresponding path program 173 times [2022-02-09 04:03:10,797 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:03:10,797 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415906060] [2022-02-09 04:03:10,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:03:10,797 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:03:10,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:03:11,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:03:11,017 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:03:11,017 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415906060] [2022-02-09 04:03:11,017 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415906060] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:03:11,018 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:03:11,018 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:03:11,018 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422823890] [2022-02-09 04:03:11,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:03:11,018 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:03:11,018 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:03:11,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:03:11,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:03:11,018 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) [2022-02-09 04:03:12,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:03:12,528 INFO L93 Difference]: Finished difference Result 4263 states and 14057 transitions. [2022-02-09 04:03:12,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-02-09 04:03:12,528 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 [2022-02-09 04:03:12,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:03:12,537 INFO L225 Difference]: With dead ends: 4263 [2022-02-09 04:03:12,537 INFO L226 Difference]: Without dead ends: 4126 [2022-02-09 04:03:12,537 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 867 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=307, Invalid=3115, Unknown=0, NotChecked=0, Total=3422 [2022-02-09 04:03:12,538 INFO L933 BasicCegarLoop]: 141 mSDtfsCounter, 342 mSDsluCounter, 1518 mSDsCounter, 0 mSdLazyCounter, 2189 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.7s IncrementalHoareTripleChecker+Time [2022-02-09 04:03:12,538 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [342 Valid, 1270 Invalid, 2250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 2189 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-09 04:03:12,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4126 states. [2022-02-09 04:03:12,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4126 to 3668. [2022-02-09 04:03:12,596 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) [2022-02-09 04:03:12,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3668 states to 3668 states and 12276 transitions. [2022-02-09 04:03:12,602 INFO L78 Accepts]: Start accepts. Automaton has 3668 states and 12276 transitions. Word has length 39 [2022-02-09 04:03:12,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:03:12,602 INFO L470 AbstractCegarLoop]: Abstraction has 3668 states and 12276 transitions. [2022-02-09 04:03:12,602 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) [2022-02-09 04:03:12,602 INFO L276 IsEmpty]: Start isEmpty. Operand 3668 states and 12276 transitions. [2022-02-09 04:03:12,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:03:12,607 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:03:12,607 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:03:12,607 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable172 [2022-02-09 04:03:12,607 INFO L402 AbstractCegarLoop]: === Iteration 174 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:03:12,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:03:12,608 INFO L85 PathProgramCache]: Analyzing trace with hash -431245150, now seen corresponding path program 174 times [2022-02-09 04:03:12,608 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:03:12,608 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381632184] [2022-02-09 04:03:12,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:03:12,608 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:03:12,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:03:12,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:03:12,808 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:03:12,808 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381632184] [2022-02-09 04:03:12,808 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381632184] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:03:12,808 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:03:12,809 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:03:12,809 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791951461] [2022-02-09 04:03:12,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:03:12,809 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:03:12,809 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:03:12,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:03:12,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:03:12,809 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) [2022-02-09 04:03:14,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:03:14,151 INFO L93 Difference]: Finished difference Result 4241 states and 13923 transitions. [2022-02-09 04:03:14,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-02-09 04:03:14,151 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 [2022-02-09 04:03:14,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:03:14,160 INFO L225 Difference]: With dead ends: 4241 [2022-02-09 04:03:14,160 INFO L226 Difference]: Without dead ends: 4177 [2022-02-09 04:03:14,160 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 787 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=299, Invalid=2893, Unknown=0, NotChecked=0, Total=3192 [2022-02-09 04:03:14,161 INFO L933 BasicCegarLoop]: 107 mSDtfsCounter, 320 mSDsluCounter, 1253 mSDsCounter, 0 mSdLazyCounter, 1852 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 04:03:14,161 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [320 Valid, 1010 Invalid, 1911 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 1852 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 04:03:14,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4177 states. [2022-02-09 04:03:14,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4177 to 3668. [2022-02-09 04:03:14,215 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) [2022-02-09 04:03:14,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3668 states to 3668 states and 12276 transitions. [2022-02-09 04:03:14,223 INFO L78 Accepts]: Start accepts. Automaton has 3668 states and 12276 transitions. Word has length 39 [2022-02-09 04:03:14,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:03:14,223 INFO L470 AbstractCegarLoop]: Abstraction has 3668 states and 12276 transitions. [2022-02-09 04:03:14,223 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) [2022-02-09 04:03:14,223 INFO L276 IsEmpty]: Start isEmpty. Operand 3668 states and 12276 transitions. [2022-02-09 04:03:14,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:03:14,229 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:03:14,229 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:03:14,229 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable173 [2022-02-09 04:03:14,229 INFO L402 AbstractCegarLoop]: === Iteration 175 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:03:14,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:03:14,230 INFO L85 PathProgramCache]: Analyzing trace with hash 487238420, now seen corresponding path program 175 times [2022-02-09 04:03:14,230 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:03:14,230 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644061478] [2022-02-09 04:03:14,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:03:14,230 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:03:14,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:03:14,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:03:14,447 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:03:14,447 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644061478] [2022-02-09 04:03:14,447 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644061478] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:03:14,447 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:03:14,447 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:03:14,447 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732152775] [2022-02-09 04:03:14,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:03:14,447 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:03:14,447 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:03:14,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:03:14,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:03:14,448 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) [2022-02-09 04:03:15,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:03:15,541 INFO L93 Difference]: Finished difference Result 4146 states and 13671 transitions. [2022-02-09 04:03:15,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-02-09 04:03:15,541 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 [2022-02-09 04:03:15,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:03:15,549 INFO L225 Difference]: With dead ends: 4146 [2022-02-09 04:03:15,550 INFO L226 Difference]: Without dead ends: 4091 [2022-02-09 04:03:15,550 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 477 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=220, Invalid=2036, Unknown=0, NotChecked=0, Total=2256 [2022-02-09 04:03:15,550 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 [2022-02-09 04:03:15,550 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] [2022-02-09 04:03:15,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4091 states. [2022-02-09 04:03:15,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4091 to 3670. [2022-02-09 04:03:15,599 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) [2022-02-09 04:03:15,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3670 states to 3670 states and 12279 transitions. [2022-02-09 04:03:15,606 INFO L78 Accepts]: Start accepts. Automaton has 3670 states and 12279 transitions. Word has length 39 [2022-02-09 04:03:15,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:03:15,606 INFO L470 AbstractCegarLoop]: Abstraction has 3670 states and 12279 transitions. [2022-02-09 04:03:15,606 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) [2022-02-09 04:03:15,607 INFO L276 IsEmpty]: Start isEmpty. Operand 3670 states and 12279 transitions. [2022-02-09 04:03:15,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:03:15,612 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:03:15,612 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] [2022-02-09 04:03:15,612 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable174 [2022-02-09 04:03:15,612 INFO L402 AbstractCegarLoop]: === Iteration 176 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:03:15,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:03:15,612 INFO L85 PathProgramCache]: Analyzing trace with hash 1659890642, now seen corresponding path program 176 times [2022-02-09 04:03:15,612 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:03:15,612 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055140669] [2022-02-09 04:03:15,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:03:15,613 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:03:15,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:03:15,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:03:15,813 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:03:15,813 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055140669] [2022-02-09 04:03:15,813 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055140669] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:03:15,813 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:03:15,813 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:03:15,813 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417321100] [2022-02-09 04:03:15,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:03:15,813 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:03:15,813 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:03:15,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:03:15,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:03:15,813 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) [2022-02-09 04:03:16,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:03:16,870 INFO L93 Difference]: Finished difference Result 4116 states and 13610 transitions. [2022-02-09 04:03:16,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-02-09 04:03:16,870 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 [2022-02-09 04:03:16,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:03:16,879 INFO L225 Difference]: With dead ends: 4116 [2022-02-09 04:03:16,879 INFO L226 Difference]: Without dead ends: 4056 [2022-02-09 04:03:16,880 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 480 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=223, Invalid=2033, Unknown=0, NotChecked=0, Total=2256 [2022-02-09 04:03:16,880 INFO L933 BasicCegarLoop]: 103 mSDtfsCounter, 276 mSDsluCounter, 1181 mSDsCounter, 0 mSdLazyCounter, 1615 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.5s IncrementalHoareTripleChecker+Time [2022-02-09 04:03:16,880 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [276 Valid, 947 Invalid, 1657 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 1615 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-09 04:03:16,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4056 states. [2022-02-09 04:03:16,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4056 to 3668. [2022-02-09 04:03:16,932 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) [2022-02-09 04:03:16,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3668 states to 3668 states and 12274 transitions. [2022-02-09 04:03:16,940 INFO L78 Accepts]: Start accepts. Automaton has 3668 states and 12274 transitions. Word has length 39 [2022-02-09 04:03:16,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:03:16,940 INFO L470 AbstractCegarLoop]: Abstraction has 3668 states and 12274 transitions. [2022-02-09 04:03:16,940 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) [2022-02-09 04:03:16,940 INFO L276 IsEmpty]: Start isEmpty. Operand 3668 states and 12274 transitions. [2022-02-09 04:03:16,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:03:16,946 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:03:16,946 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:03:16,946 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable175 [2022-02-09 04:03:16,946 INFO L402 AbstractCegarLoop]: === Iteration 177 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:03:16,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:03:16,946 INFO L85 PathProgramCache]: Analyzing trace with hash -419675900, now seen corresponding path program 177 times [2022-02-09 04:03:16,946 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:03:16,946 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161608405] [2022-02-09 04:03:16,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:03:16,946 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:03:16,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:03:17,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:03:17,142 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:03:17,142 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161608405] [2022-02-09 04:03:17,142 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161608405] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:03:17,143 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:03:17,143 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-09 04:03:17,143 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670591232] [2022-02-09 04:03:17,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:03:17,143 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-02-09 04:03:17,143 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:03:17,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-02-09 04:03:17,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2022-02-09 04:03:17,143 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) [2022-02-09 04:03:18,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:03:18,090 INFO L93 Difference]: Finished difference Result 4027 states and 13397 transitions. [2022-02-09 04:03:18,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-02-09 04:03:18,090 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 [2022-02-09 04:03:18,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:03:18,099 INFO L225 Difference]: With dead ends: 4027 [2022-02-09 04:03:18,099 INFO L226 Difference]: Without dead ends: 3951 [2022-02-09 04:03:18,099 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 391 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=196, Invalid=1696, Unknown=0, NotChecked=0, Total=1892 [2022-02-09 04:03:18,099 INFO L933 BasicCegarLoop]: 104 mSDtfsCounter, 231 mSDsluCounter, 1048 mSDsCounter, 0 mSdLazyCounter, 1470 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.5s IncrementalHoareTripleChecker+Time [2022-02-09 04:03:18,099 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [231 Valid, 855 Invalid, 1507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1470 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-09 04:03:18,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3951 states. [2022-02-09 04:03:18,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3951 to 3676. [2022-02-09 04:03:18,140 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) [2022-02-09 04:03:18,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3676 states to 3676 states and 12290 transitions. [2022-02-09 04:03:18,147 INFO L78 Accepts]: Start accepts. Automaton has 3676 states and 12290 transitions. Word has length 39 [2022-02-09 04:03:18,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:03:18,147 INFO L470 AbstractCegarLoop]: Abstraction has 3676 states and 12290 transitions. [2022-02-09 04:03:18,147 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) [2022-02-09 04:03:18,147 INFO L276 IsEmpty]: Start isEmpty. Operand 3676 states and 12290 transitions. [2022-02-09 04:03:18,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:03:18,151 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:03:18,152 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:03:18,152 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable176 [2022-02-09 04:03:18,152 INFO L402 AbstractCegarLoop]: === Iteration 178 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:03:18,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:03:18,152 INFO L85 PathProgramCache]: Analyzing trace with hash -1437729512, now seen corresponding path program 178 times [2022-02-09 04:03:18,152 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:03:18,152 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838179424] [2022-02-09 04:03:18,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:03:18,152 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:03:18,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:03:18,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:03:18,353 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:03:18,353 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838179424] [2022-02-09 04:03:18,353 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838179424] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:03:18,353 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:03:18,354 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:03:18,354 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921299484] [2022-02-09 04:03:18,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:03:18,354 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:03:18,354 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:03:18,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:03:18,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:03:18,354 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) [2022-02-09 04:03:19,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:03:19,357 INFO L93 Difference]: Finished difference Result 4009 states and 13343 transitions. [2022-02-09 04:03:19,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-09 04:03:19,357 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 [2022-02-09 04:03:19,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:03:19,374 INFO L225 Difference]: With dead ends: 4009 [2022-02-09 04:03:19,374 INFO L226 Difference]: Without dead ends: 3931 [2022-02-09 04:03:19,374 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 448 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=212, Invalid=1950, Unknown=0, NotChecked=0, Total=2162 [2022-02-09 04:03:19,375 INFO L933 BasicCegarLoop]: 104 mSDtfsCounter, 261 mSDsluCounter, 1143 mSDsCounter, 0 mSdLazyCounter, 1556 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.5s IncrementalHoareTripleChecker+Time [2022-02-09 04:03:19,375 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [261 Valid, 945 Invalid, 1597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1556 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-09 04:03:19,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3931 states. [2022-02-09 04:03:19,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3931 to 3656. [2022-02-09 04:03:19,417 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) [2022-02-09 04:03:19,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3656 states to 3656 states and 12242 transitions. [2022-02-09 04:03:19,424 INFO L78 Accepts]: Start accepts. Automaton has 3656 states and 12242 transitions. Word has length 39 [2022-02-09 04:03:19,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:03:19,424 INFO L470 AbstractCegarLoop]: Abstraction has 3656 states and 12242 transitions. [2022-02-09 04:03:19,424 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) [2022-02-09 04:03:19,424 INFO L276 IsEmpty]: Start isEmpty. Operand 3656 states and 12242 transitions. [2022-02-09 04:03:19,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:03:19,429 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:03:19,429 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] [2022-02-09 04:03:19,429 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable177 [2022-02-09 04:03:19,429 INFO L402 AbstractCegarLoop]: === Iteration 179 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:03:19,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:03:19,429 INFO L85 PathProgramCache]: Analyzing trace with hash 446382202, now seen corresponding path program 179 times [2022-02-09 04:03:19,429 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:03:19,429 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138957636] [2022-02-09 04:03:19,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:03:19,429 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:03:19,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:03:19,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:03:19,640 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:03:19,640 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138957636] [2022-02-09 04:03:19,641 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138957636] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:03:19,641 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:03:19,641 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:03:19,641 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268215639] [2022-02-09 04:03:19,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:03:19,641 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:03:19,641 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:03:19,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:03:19,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:03:19,641 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) [2022-02-09 04:03:20,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:03:20,832 INFO L93 Difference]: Finished difference Result 4203 states and 13963 transitions. [2022-02-09 04:03:20,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-02-09 04:03:20,832 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 [2022-02-09 04:03:20,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:03:20,843 INFO L225 Difference]: With dead ends: 4203 [2022-02-09 04:03:20,843 INFO L226 Difference]: Without dead ends: 4136 [2022-02-09 04:03:20,843 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 570 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=251, Invalid=2299, Unknown=0, NotChecked=0, Total=2550 [2022-02-09 04:03:20,844 INFO L933 BasicCegarLoop]: 126 mSDtfsCounter, 268 mSDsluCounter, 1329 mSDsCounter, 0 mSdLazyCounter, 1830 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 04:03:20,844 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [268 Valid, 1171 Invalid, 1879 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1830 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 04:03:20,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4136 states. [2022-02-09 04:03:20,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4136 to 3696. [2022-02-09 04:03:20,895 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) [2022-02-09 04:03:20,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3696 states to 3696 states and 12367 transitions. [2022-02-09 04:03:20,904 INFO L78 Accepts]: Start accepts. Automaton has 3696 states and 12367 transitions. Word has length 39 [2022-02-09 04:03:20,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:03:20,904 INFO L470 AbstractCegarLoop]: Abstraction has 3696 states and 12367 transitions. [2022-02-09 04:03:20,904 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) [2022-02-09 04:03:20,904 INFO L276 IsEmpty]: Start isEmpty. Operand 3696 states and 12367 transitions. [2022-02-09 04:03:20,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:03:20,910 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:03:20,910 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:03:20,910 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable178 [2022-02-09 04:03:20,910 INFO L402 AbstractCegarLoop]: === Iteration 180 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:03:20,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:03:20,910 INFO L85 PathProgramCache]: Analyzing trace with hash -1273233768, now seen corresponding path program 180 times [2022-02-09 04:03:20,910 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:03:20,910 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057555564] [2022-02-09 04:03:20,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:03:20,910 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:03:20,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:03:21,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:03:21,122 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:03:21,122 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057555564] [2022-02-09 04:03:21,122 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057555564] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:03:21,122 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:03:21,122 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:03:21,122 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139055010] [2022-02-09 04:03:21,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:03:21,122 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:03:21,122 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:03:21,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:03:21,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:03:21,122 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) [2022-02-09 04:03:22,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:03:22,678 INFO L93 Difference]: Finished difference Result 4340 states and 14320 transitions. [2022-02-09 04:03:22,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-02-09 04:03:22,678 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 [2022-02-09 04:03:22,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:03:22,690 INFO L225 Difference]: With dead ends: 4340 [2022-02-09 04:03:22,690 INFO L226 Difference]: Without dead ends: 4297 [2022-02-09 04:03:22,690 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 947 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=332, Invalid=3328, Unknown=0, NotChecked=0, Total=3660 [2022-02-09 04:03:22,690 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 345 mSDsluCounter, 1466 mSDsCounter, 0 mSdLazyCounter, 2117 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.7s IncrementalHoareTripleChecker+Time [2022-02-09 04:03:22,691 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [345 Valid, 1278 Invalid, 2184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 2117 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-09 04:03:22,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4297 states. [2022-02-09 04:03:22,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4297 to 3702. [2022-02-09 04:03:22,746 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) [2022-02-09 04:03:22,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3702 states to 3702 states and 12380 transitions. [2022-02-09 04:03:22,783 INFO L78 Accepts]: Start accepts. Automaton has 3702 states and 12380 transitions. Word has length 39 [2022-02-09 04:03:22,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:03:22,783 INFO L470 AbstractCegarLoop]: Abstraction has 3702 states and 12380 transitions. [2022-02-09 04:03:22,783 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) [2022-02-09 04:03:22,783 INFO L276 IsEmpty]: Start isEmpty. Operand 3702 states and 12380 transitions. [2022-02-09 04:03:22,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:03:22,789 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:03:22,789 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:03:22,789 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable179 [2022-02-09 04:03:22,789 INFO L402 AbstractCegarLoop]: === Iteration 181 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:03:22,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:03:22,789 INFO L85 PathProgramCache]: Analyzing trace with hash 1241135226, now seen corresponding path program 181 times [2022-02-09 04:03:22,789 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:03:22,789 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206333133] [2022-02-09 04:03:22,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:03:22,789 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:03:22,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:03:22,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:03:22,994 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:03:22,994 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206333133] [2022-02-09 04:03:22,994 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206333133] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:03:22,995 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:03:22,995 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:03:22,995 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319914218] [2022-02-09 04:03:22,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:03:22,995 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:03:22,995 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:03:22,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:03:22,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:03:22,995 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) [2022-02-09 04:03:24,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:03:24,463 INFO L93 Difference]: Finished difference Result 4271 states and 14140 transitions. [2022-02-09 04:03:24,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-02-09 04:03:24,463 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 [2022-02-09 04:03:24,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:03:24,473 INFO L225 Difference]: With dead ends: 4271 [2022-02-09 04:03:24,473 INFO L226 Difference]: Without dead ends: 4207 [2022-02-09 04:03:24,474 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 862 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=314, Invalid=3108, Unknown=0, NotChecked=0, Total=3422 [2022-02-09 04:03:24,474 INFO L933 BasicCegarLoop]: 126 mSDtfsCounter, 333 mSDsluCounter, 1424 mSDsCounter, 0 mSdLazyCounter, 2034 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.7s IncrementalHoareTripleChecker+Time [2022-02-09 04:03:24,474 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [333 Valid, 1245 Invalid, 2098 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 2034 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-09 04:03:24,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4207 states. [2022-02-09 04:03:24,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4207 to 3684. [2022-02-09 04:03:24,524 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) [2022-02-09 04:03:24,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3684 states to 3684 states and 12337 transitions. [2022-02-09 04:03:24,532 INFO L78 Accepts]: Start accepts. Automaton has 3684 states and 12337 transitions. Word has length 39 [2022-02-09 04:03:24,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:03:24,533 INFO L470 AbstractCegarLoop]: Abstraction has 3684 states and 12337 transitions. [2022-02-09 04:03:24,533 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) [2022-02-09 04:03:24,533 INFO L276 IsEmpty]: Start isEmpty. Operand 3684 states and 12337 transitions. [2022-02-09 04:03:24,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:03:24,538 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:03:24,538 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] [2022-02-09 04:03:24,538 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable180 [2022-02-09 04:03:24,539 INFO L402 AbstractCegarLoop]: === Iteration 182 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:03:24,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:03:24,539 INFO L85 PathProgramCache]: Analyzing trace with hash 1861569626, now seen corresponding path program 182 times [2022-02-09 04:03:24,539 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:03:24,539 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985673692] [2022-02-09 04:03:24,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:03:24,539 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:03:24,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:03:24,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:03:24,740 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:03:24,740 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985673692] [2022-02-09 04:03:24,740 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985673692] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:03:24,740 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:03:24,740 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:03:24,740 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104101881] [2022-02-09 04:03:24,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:03:24,741 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:03:24,741 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:03:24,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:03:24,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:03:24,741 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) [2022-02-09 04:03:25,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:03:25,757 INFO L93 Difference]: Finished difference Result 4183 states and 13891 transitions. [2022-02-09 04:03:25,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-09 04:03:25,757 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 [2022-02-09 04:03:25,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:03:25,765 INFO L225 Difference]: With dead ends: 4183 [2022-02-09 04:03:25,766 INFO L226 Difference]: Without dead ends: 4116 [2022-02-09 04:03:25,766 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 415 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=212, Invalid=1858, Unknown=0, NotChecked=0, Total=2070 [2022-02-09 04:03:25,766 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 04:03:25,766 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [237 Valid, 1001 Invalid, 1697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1661 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 04:03:25,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4116 states. [2022-02-09 04:03:25,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4116 to 3712. [2022-02-09 04:03:25,810 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) [2022-02-09 04:03:25,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3712 states to 3712 states and 12417 transitions. [2022-02-09 04:03:25,817 INFO L78 Accepts]: Start accepts. Automaton has 3712 states and 12417 transitions. Word has length 39 [2022-02-09 04:03:25,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:03:25,818 INFO L470 AbstractCegarLoop]: Abstraction has 3712 states and 12417 transitions. [2022-02-09 04:03:25,818 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) [2022-02-09 04:03:25,818 INFO L276 IsEmpty]: Start isEmpty. Operand 3712 states and 12417 transitions. [2022-02-09 04:03:25,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:03:25,823 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:03:25,823 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] [2022-02-09 04:03:25,823 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable181 [2022-02-09 04:03:25,823 INFO L402 AbstractCegarLoop]: === Iteration 183 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:03:25,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:03:25,823 INFO L85 PathProgramCache]: Analyzing trace with hash 1730974778, now seen corresponding path program 183 times [2022-02-09 04:03:25,824 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:03:25,824 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902440206] [2022-02-09 04:03:25,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:03:25,824 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:03:25,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:03:26,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:03:26,040 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:03:26,040 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902440206] [2022-02-09 04:03:26,040 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902440206] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:03:26,040 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:03:26,040 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:03:26,040 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759149049] [2022-02-09 04:03:26,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:03:26,040 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:03:26,040 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:03:26,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:03:26,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:03:26,041 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) [2022-02-09 04:03:27,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:03:27,074 INFO L93 Difference]: Finished difference Result 4171 states and 13851 transitions. [2022-02-09 04:03:27,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-02-09 04:03:27,075 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 [2022-02-09 04:03:27,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:03:27,083 INFO L225 Difference]: With dead ends: 4171 [2022-02-09 04:03:27,083 INFO L226 Difference]: Without dead ends: 4108 [2022-02-09 04:03:27,083 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 477 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=226, Invalid=2030, Unknown=0, NotChecked=0, Total=2256 [2022-02-09 04:03:27,083 INFO L933 BasicCegarLoop]: 109 mSDtfsCounter, 243 mSDsluCounter, 1202 mSDsCounter, 0 mSdLazyCounter, 1674 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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 [2022-02-09 04:03:27,084 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] [2022-02-09 04:03:27,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4108 states. [2022-02-09 04:03:27,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4108 to 3704. [2022-02-09 04:03:27,126 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) [2022-02-09 04:03:27,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3704 states to 3704 states and 12397 transitions. [2022-02-09 04:03:27,132 INFO L78 Accepts]: Start accepts. Automaton has 3704 states and 12397 transitions. Word has length 39 [2022-02-09 04:03:27,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:03:27,132 INFO L470 AbstractCegarLoop]: Abstraction has 3704 states and 12397 transitions. [2022-02-09 04:03:27,132 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) [2022-02-09 04:03:27,132 INFO L276 IsEmpty]: Start isEmpty. Operand 3704 states and 12397 transitions. [2022-02-09 04:03:27,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:03:27,137 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:03:27,137 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:03:27,137 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable182 [2022-02-09 04:03:27,137 INFO L402 AbstractCegarLoop]: === Iteration 184 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:03:27,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:03:27,137 INFO L85 PathProgramCache]: Analyzing trace with hash 1595296186, now seen corresponding path program 184 times [2022-02-09 04:03:27,138 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:03:27,138 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721075370] [2022-02-09 04:03:27,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:03:27,138 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:03:27,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:03:27,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:03:27,340 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:03:27,340 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721075370] [2022-02-09 04:03:27,340 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721075370] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:03:27,340 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:03:27,340 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:03:27,341 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19667393] [2022-02-09 04:03:27,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:03:27,341 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:03:27,341 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:03:27,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:03:27,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:03:27,341 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) [2022-02-09 04:03:28,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:03:28,718 INFO L93 Difference]: Finished difference Result 4334 states and 14240 transitions. [2022-02-09 04:03:28,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-02-09 04:03:28,719 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 [2022-02-09 04:03:28,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:03:28,727 INFO L225 Difference]: With dead ends: 4334 [2022-02-09 04:03:28,727 INFO L226 Difference]: Without dead ends: 4291 [2022-02-09 04:03:28,727 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 863 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=323, Invalid=3099, Unknown=0, NotChecked=0, Total=3422 [2022-02-09 04:03:28,727 INFO L933 BasicCegarLoop]: 110 mSDtfsCounter, 326 mSDsluCounter, 1296 mSDsCounter, 0 mSdLazyCounter, 1887 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 04:03:28,727 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [326 Valid, 1085 Invalid, 1948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 1887 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 04:03:28,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4291 states. [2022-02-09 04:03:28,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4291 to 3712. [2022-02-09 04:03:28,769 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) [2022-02-09 04:03:28,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3712 states to 3712 states and 12417 transitions. [2022-02-09 04:03:28,775 INFO L78 Accepts]: Start accepts. Automaton has 3712 states and 12417 transitions. Word has length 39 [2022-02-09 04:03:28,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:03:28,775 INFO L470 AbstractCegarLoop]: Abstraction has 3712 states and 12417 transitions. [2022-02-09 04:03:28,775 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) [2022-02-09 04:03:28,775 INFO L276 IsEmpty]: Start isEmpty. Operand 3712 states and 12417 transitions. [2022-02-09 04:03:28,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:03:28,780 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:03:28,780 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] [2022-02-09 04:03:28,780 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable183 [2022-02-09 04:03:28,780 INFO L402 AbstractCegarLoop]: === Iteration 185 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:03:28,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:03:28,780 INFO L85 PathProgramCache]: Analyzing trace with hash -185302116, now seen corresponding path program 185 times [2022-02-09 04:03:28,780 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:03:28,780 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247674101] [2022-02-09 04:03:28,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:03:28,781 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:03:28,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:03:28,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:03:28,987 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:03:28,987 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247674101] [2022-02-09 04:03:28,987 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247674101] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:03:28,987 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:03:28,987 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:03:28,987 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394769588] [2022-02-09 04:03:28,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:03:28,987 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:03:28,988 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:03:28,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:03:28,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:03:28,988 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) [2022-02-09 04:03:30,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:03:30,353 INFO L93 Difference]: Finished difference Result 4322 states and 14202 transitions. [2022-02-09 04:03:30,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-02-09 04:03:30,353 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 [2022-02-09 04:03:30,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:03:30,361 INFO L225 Difference]: With dead ends: 4322 [2022-02-09 04:03:30,361 INFO L226 Difference]: Without dead ends: 4270 [2022-02-09 04:03:30,362 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 821 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=315, Invalid=2991, Unknown=0, NotChecked=0, Total=3306 [2022-02-09 04:03:30,362 INFO L933 BasicCegarLoop]: 108 mSDtfsCounter, 325 mSDsluCounter, 1271 mSDsCounter, 0 mSdLazyCounter, 1859 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 04:03:30,362 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [325 Valid, 1070 Invalid, 1915 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1859 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 04:03:30,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4270 states. [2022-02-09 04:03:30,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4270 to 3704. [2022-02-09 04:03:30,404 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) [2022-02-09 04:03:30,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3704 states to 3704 states and 12397 transitions. [2022-02-09 04:03:30,411 INFO L78 Accepts]: Start accepts. Automaton has 3704 states and 12397 transitions. Word has length 39 [2022-02-09 04:03:30,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:03:30,411 INFO L470 AbstractCegarLoop]: Abstraction has 3704 states and 12397 transitions. [2022-02-09 04:03:30,411 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) [2022-02-09 04:03:30,411 INFO L276 IsEmpty]: Start isEmpty. Operand 3704 states and 12397 transitions. [2022-02-09 04:03:30,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:03:30,427 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:03:30,427 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] [2022-02-09 04:03:30,427 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable184 [2022-02-09 04:03:30,427 INFO L402 AbstractCegarLoop]: === Iteration 186 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:03:30,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:03:30,428 INFO L85 PathProgramCache]: Analyzing trace with hash -1781187540, now seen corresponding path program 186 times [2022-02-09 04:03:30,428 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:03:30,428 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794256096] [2022-02-09 04:03:30,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:03:30,428 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:03:30,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:03:30,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:03:30,645 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:03:30,645 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794256096] [2022-02-09 04:03:30,645 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794256096] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:03:30,645 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:03:30,646 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:03:30,646 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459122546] [2022-02-09 04:03:30,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:03:30,646 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:03:30,646 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:03:30,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:03:30,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:03:30,646 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) [2022-02-09 04:03:31,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:03:31,748 INFO L93 Difference]: Finished difference Result 4299 states and 14125 transitions. [2022-02-09 04:03:31,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-02-09 04:03:31,748 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 [2022-02-09 04:03:31,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:03:31,756 INFO L225 Difference]: With dead ends: 4299 [2022-02-09 04:03:31,756 INFO L226 Difference]: Without dead ends: 4244 [2022-02-09 04:03:31,757 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 568 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=258, Invalid=2292, Unknown=0, NotChecked=0, Total=2550 [2022-02-09 04:03:31,757 INFO L933 BasicCegarLoop]: 108 mSDtfsCounter, 270 mSDsluCounter, 1249 mSDsCounter, 0 mSdLazyCounter, 1721 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 04:03:31,757 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [270 Valid, 1037 Invalid, 1767 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 1721 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 04:03:31,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4244 states. [2022-02-09 04:03:31,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4244 to 3706. [2022-02-09 04:03:31,802 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) [2022-02-09 04:03:31,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3706 states to 3706 states and 12400 transitions. [2022-02-09 04:03:31,809 INFO L78 Accepts]: Start accepts. Automaton has 3706 states and 12400 transitions. Word has length 39 [2022-02-09 04:03:31,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:03:31,809 INFO L470 AbstractCegarLoop]: Abstraction has 3706 states and 12400 transitions. [2022-02-09 04:03:31,809 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) [2022-02-09 04:03:31,809 INFO L276 IsEmpty]: Start isEmpty. Operand 3706 states and 12400 transitions. [2022-02-09 04:03:31,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:03:31,814 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:03:31,814 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] [2022-02-09 04:03:31,814 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable185 [2022-02-09 04:03:31,814 INFO L402 AbstractCegarLoop]: === Iteration 187 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:03:31,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:03:31,814 INFO L85 PathProgramCache]: Analyzing trace with hash -608535318, now seen corresponding path program 187 times [2022-02-09 04:03:31,814 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:03:31,815 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733129520] [2022-02-09 04:03:31,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:03:31,815 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:03:31,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:03:32,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:03:32,017 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:03:32,017 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733129520] [2022-02-09 04:03:32,017 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733129520] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:03:32,017 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:03:32,017 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:03:32,017 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147890126] [2022-02-09 04:03:32,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:03:32,018 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:03:32,018 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:03:32,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:03:32,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:03:32,018 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) [2022-02-09 04:03:33,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:03:33,051 INFO L93 Difference]: Finished difference Result 4234 states and 13973 transitions. [2022-02-09 04:03:33,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-02-09 04:03:33,052 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 [2022-02-09 04:03:33,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:03:33,060 INFO L225 Difference]: With dead ends: 4234 [2022-02-09 04:03:33,060 INFO L226 Difference]: Without dead ends: 4188 [2022-02-09 04:03:33,060 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 469 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=233, Invalid=2023, Unknown=0, NotChecked=0, Total=2256 [2022-02-09 04:03:33,061 INFO L933 BasicCegarLoop]: 106 mSDtfsCounter, 261 mSDsluCounter, 1248 mSDsCounter, 0 mSdLazyCounter, 1686 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.5s IncrementalHoareTripleChecker+Time [2022-02-09 04:03:33,061 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [261 Valid, 1035 Invalid, 1721 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1686 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-09 04:03:33,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4188 states. [2022-02-09 04:03:33,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4188 to 3710. [2022-02-09 04:03:33,120 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) [2022-02-09 04:03:33,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3710 states to 3710 states and 12408 transitions. [2022-02-09 04:03:33,127 INFO L78 Accepts]: Start accepts. Automaton has 3710 states and 12408 transitions. Word has length 39 [2022-02-09 04:03:33,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:03:33,127 INFO L470 AbstractCegarLoop]: Abstraction has 3710 states and 12408 transitions. [2022-02-09 04:03:33,127 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) [2022-02-09 04:03:33,127 INFO L276 IsEmpty]: Start isEmpty. Operand 3710 states and 12408 transitions. [2022-02-09 04:03:33,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:03:33,132 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:03:33,132 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] [2022-02-09 04:03:33,132 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable186 [2022-02-09 04:03:33,132 INFO L402 AbstractCegarLoop]: === Iteration 188 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:03:33,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:03:33,132 INFO L85 PathProgramCache]: Analyzing trace with hash -856001480, now seen corresponding path program 188 times [2022-02-09 04:03:33,132 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:03:33,132 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357635875] [2022-02-09 04:03:33,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:03:33,132 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:03:33,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:03:33,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:03:33,332 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:03:33,332 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357635875] [2022-02-09 04:03:33,332 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357635875] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:03:33,332 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:03:33,332 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:03:33,332 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402083089] [2022-02-09 04:03:33,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:03:33,333 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:03:33,333 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:03:33,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:03:33,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:03:33,333 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) [2022-02-09 04:03:34,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:03:34,496 INFO L93 Difference]: Finished difference Result 4218 states and 13962 transitions. [2022-02-09 04:03:34,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-02-09 04:03:34,497 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 [2022-02-09 04:03:34,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:03:34,505 INFO L225 Difference]: With dead ends: 4218 [2022-02-09 04:03:34,505 INFO L226 Difference]: Without dead ends: 4169 [2022-02-09 04:03:34,505 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 561 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=263, Invalid=2287, Unknown=0, NotChecked=0, Total=2550 [2022-02-09 04:03:34,505 INFO L933 BasicCegarLoop]: 112 mSDtfsCounter, 263 mSDsluCounter, 1276 mSDsCounter, 0 mSdLazyCounter, 1727 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 04:03:34,505 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [263 Valid, 1088 Invalid, 1768 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1727 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 04:03:34,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4169 states. [2022-02-09 04:03:34,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4169 to 3700. [2022-02-09 04:03:34,547 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) [2022-02-09 04:03:34,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3700 states to 3700 states and 12387 transitions. [2022-02-09 04:03:34,553 INFO L78 Accepts]: Start accepts. Automaton has 3700 states and 12387 transitions. Word has length 39 [2022-02-09 04:03:34,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:03:34,554 INFO L470 AbstractCegarLoop]: Abstraction has 3700 states and 12387 transitions. [2022-02-09 04:03:34,554 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) [2022-02-09 04:03:34,554 INFO L276 IsEmpty]: Start isEmpty. Operand 3700 states and 12387 transitions. [2022-02-09 04:03:34,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:03:34,558 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:03:34,558 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] [2022-02-09 04:03:34,558 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable187 [2022-02-09 04:03:34,559 INFO L402 AbstractCegarLoop]: === Iteration 189 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:03:34,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:03:34,559 INFO L85 PathProgramCache]: Analyzing trace with hash 682874042, now seen corresponding path program 189 times [2022-02-09 04:03:34,559 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:03:34,559 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019183221] [2022-02-09 04:03:34,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:03:34,559 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:03:34,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:03:34,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:03:34,779 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:03:34,779 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019183221] [2022-02-09 04:03:34,779 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019183221] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:03:34,779 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:03:34,779 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:03:34,779 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708752159] [2022-02-09 04:03:34,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:03:34,780 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:03:34,780 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:03:34,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:03:34,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:03:34,780 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) [2022-02-09 04:03:35,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:03:35,755 INFO L93 Difference]: Finished difference Result 4155 states and 13831 transitions. [2022-02-09 04:03:35,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-02-09 04:03:35,756 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 [2022-02-09 04:03:35,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:03:35,764 INFO L225 Difference]: With dead ends: 4155 [2022-02-09 04:03:35,764 INFO L226 Difference]: Without dead ends: 4088 [2022-02-09 04:03:35,764 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 [2022-02-09 04:03:35,764 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 [2022-02-09 04:03:35,764 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] [2022-02-09 04:03:35,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4088 states. [2022-02-09 04:03:35,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4088 to 3740. [2022-02-09 04:03:35,806 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) [2022-02-09 04:03:35,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3740 states to 3740 states and 12495 transitions. [2022-02-09 04:03:35,813 INFO L78 Accepts]: Start accepts. Automaton has 3740 states and 12495 transitions. Word has length 39 [2022-02-09 04:03:35,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:03:35,813 INFO L470 AbstractCegarLoop]: Abstraction has 3740 states and 12495 transitions. [2022-02-09 04:03:35,813 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) [2022-02-09 04:03:35,813 INFO L276 IsEmpty]: Start isEmpty. Operand 3740 states and 12495 transitions. [2022-02-09 04:03:35,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:03:35,818 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:03:35,818 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] [2022-02-09 04:03:35,818 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable188 [2022-02-09 04:03:35,818 INFO L402 AbstractCegarLoop]: === Iteration 190 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:03:35,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:03:35,819 INFO L85 PathProgramCache]: Analyzing trace with hash 552279194, now seen corresponding path program 190 times [2022-02-09 04:03:35,819 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:03:35,819 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085218481] [2022-02-09 04:03:35,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:03:35,819 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:03:35,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:03:36,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:03:36,032 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:03:36,032 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085218481] [2022-02-09 04:03:36,032 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085218481] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:03:36,032 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:03:36,032 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:03:36,032 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844329032] [2022-02-09 04:03:36,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:03:36,032 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:03:36,032 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:03:36,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:03:36,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:03:36,033 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) [2022-02-09 04:03:37,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:03:37,029 INFO L93 Difference]: Finished difference Result 4143 states and 13791 transitions. [2022-02-09 04:03:37,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-02-09 04:03:37,030 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 [2022-02-09 04:03:37,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:03:37,038 INFO L225 Difference]: With dead ends: 4143 [2022-02-09 04:03:37,038 INFO L226 Difference]: Without dead ends: 4080 [2022-02-09 04:03:37,038 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 [2022-02-09 04:03:37,038 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 [2022-02-09 04:03:37,038 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] [2022-02-09 04:03:37,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4080 states. [2022-02-09 04:03:37,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4080 to 3732. [2022-02-09 04:03:37,081 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) [2022-02-09 04:03:37,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3732 states to 3732 states and 12471 transitions. [2022-02-09 04:03:37,088 INFO L78 Accepts]: Start accepts. Automaton has 3732 states and 12471 transitions. Word has length 39 [2022-02-09 04:03:37,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:03:37,088 INFO L470 AbstractCegarLoop]: Abstraction has 3732 states and 12471 transitions. [2022-02-09 04:03:37,088 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) [2022-02-09 04:03:37,088 INFO L276 IsEmpty]: Start isEmpty. Operand 3732 states and 12471 transitions. [2022-02-09 04:03:37,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:03:37,093 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:03:37,093 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] [2022-02-09 04:03:37,093 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable189 [2022-02-09 04:03:37,093 INFO L402 AbstractCegarLoop]: === Iteration 191 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:03:37,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:03:37,093 INFO L85 PathProgramCache]: Analyzing trace with hash 22378746, now seen corresponding path program 191 times [2022-02-09 04:03:37,093 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:03:37,093 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289375837] [2022-02-09 04:03:37,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:03:37,093 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:03:37,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:03:37,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:03:37,296 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:03:37,297 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289375837] [2022-02-09 04:03:37,297 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289375837] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:03:37,297 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:03:37,297 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:03:37,297 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449997762] [2022-02-09 04:03:37,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:03:37,297 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:03:37,297 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:03:37,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:03:37,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:03:37,297 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) [2022-02-09 04:03:38,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:03:38,313 INFO L93 Difference]: Finished difference Result 4167 states and 13851 transitions. [2022-02-09 04:03:38,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-02-09 04:03:38,313 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 [2022-02-09 04:03:38,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:03:38,321 INFO L225 Difference]: With dead ends: 4167 [2022-02-09 04:03:38,321 INFO L226 Difference]: Without dead ends: 4044 [2022-02-09 04:03:38,321 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 389 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=195, Invalid=1785, Unknown=0, NotChecked=0, Total=1980 [2022-02-09 04:03:38,322 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 [2022-02-09 04:03:38,322 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] [2022-02-09 04:03:38,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4044 states. [2022-02-09 04:03:38,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4044 to 3684. [2022-02-09 04:03:38,366 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) [2022-02-09 04:03:38,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3684 states to 3684 states and 12337 transitions. [2022-02-09 04:03:38,373 INFO L78 Accepts]: Start accepts. Automaton has 3684 states and 12337 transitions. Word has length 39 [2022-02-09 04:03:38,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:03:38,373 INFO L470 AbstractCegarLoop]: Abstraction has 3684 states and 12337 transitions. [2022-02-09 04:03:38,373 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) [2022-02-09 04:03:38,373 INFO L276 IsEmpty]: Start isEmpty. Operand 3684 states and 12337 transitions. [2022-02-09 04:03:38,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:03:38,378 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:03:38,378 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:03:38,379 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable190 [2022-02-09 04:03:38,379 INFO L402 AbstractCegarLoop]: === Iteration 192 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:03:38,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:03:38,379 INFO L85 PathProgramCache]: Analyzing trace with hash -696032424, now seen corresponding path program 192 times [2022-02-09 04:03:38,379 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:03:38,379 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316328417] [2022-02-09 04:03:38,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:03:38,379 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:03:38,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:03:38,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:03:38,579 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:03:38,579 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316328417] [2022-02-09 04:03:38,579 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316328417] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:03:38,579 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:03:38,579 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:03:38,579 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300473737] [2022-02-09 04:03:38,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:03:38,580 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:03:38,580 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:03:38,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:03:38,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:03:38,580 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) [2022-02-09 04:03:40,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:03:40,372 INFO L93 Difference]: Finished difference Result 6284 states and 21185 transitions. [2022-02-09 04:03:40,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2022-02-09 04:03:40,372 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 [2022-02-09 04:03:40,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:03:40,387 INFO L225 Difference]: With dead ends: 6284 [2022-02-09 04:03:40,387 INFO L226 Difference]: Without dead ends: 6241 [2022-02-09 04:03:40,388 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1277 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=399, Invalid=4157, Unknown=0, NotChecked=0, Total=4556 [2022-02-09 04:03:40,388 INFO L933 BasicCegarLoop]: 178 mSDtfsCounter, 512 mSDsluCounter, 1902 mSDsCounter, 0 mSdLazyCounter, 2498 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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, 0.8s IncrementalHoareTripleChecker+Time [2022-02-09 04:03:40,388 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [512 Valid, 1784 Invalid, 2591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 2498 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-09 04:03:40,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6241 states. [2022-02-09 04:03:40,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6241 to 3912. [2022-02-09 04:03:40,459 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) [2022-02-09 04:03:40,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3912 states to 3912 states and 13150 transitions. [2022-02-09 04:03:40,468 INFO L78 Accepts]: Start accepts. Automaton has 3912 states and 13150 transitions. Word has length 39 [2022-02-09 04:03:40,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:03:40,468 INFO L470 AbstractCegarLoop]: Abstraction has 3912 states and 13150 transitions. [2022-02-09 04:03:40,468 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) [2022-02-09 04:03:40,468 INFO L276 IsEmpty]: Start isEmpty. Operand 3912 states and 13150 transitions. [2022-02-09 04:03:40,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:03:40,488 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:03:40,488 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] [2022-02-09 04:03:40,488 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable191 [2022-02-09 04:03:40,488 INFO L402 AbstractCegarLoop]: === Iteration 193 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:03:40,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:03:40,488 INFO L85 PathProgramCache]: Analyzing trace with hash 1818336570, now seen corresponding path program 193 times [2022-02-09 04:03:40,488 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:03:40,488 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861677310] [2022-02-09 04:03:40,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:03:40,489 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:03:40,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:03:40,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:03:40,691 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:03:40,691 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861677310] [2022-02-09 04:03:40,691 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861677310] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:03:40,691 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:03:40,691 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:03:40,691 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431728592] [2022-02-09 04:03:40,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:03:40,691 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:03:40,691 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:03:40,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:03:40,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:03:40,692 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) [2022-02-09 04:03:42,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:03:42,753 INFO L93 Difference]: Finished difference Result 7189 states and 24259 transitions. [2022-02-09 04:03:42,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-02-09 04:03:42,753 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 [2022-02-09 04:03:42,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:03:42,769 INFO L225 Difference]: With dead ends: 7189 [2022-02-09 04:03:42,769 INFO L226 Difference]: Without dead ends: 7137 [2022-02-09 04:03:42,770 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1653 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=448, Invalid=5102, Unknown=0, NotChecked=0, Total=5550 [2022-02-09 04:03:42,770 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 [2022-02-09 04:03:42,770 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] [2022-02-09 04:03:42,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7137 states. [2022-02-09 04:03:42,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7137 to 3882. [2022-02-09 04:03:42,834 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) [2022-02-09 04:03:42,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3882 states to 3882 states and 13055 transitions. [2022-02-09 04:03:42,843 INFO L78 Accepts]: Start accepts. Automaton has 3882 states and 13055 transitions. Word has length 39 [2022-02-09 04:03:42,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:03:42,843 INFO L470 AbstractCegarLoop]: Abstraction has 3882 states and 13055 transitions. [2022-02-09 04:03:42,843 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) [2022-02-09 04:03:42,843 INFO L276 IsEmpty]: Start isEmpty. Operand 3882 states and 13055 transitions. [2022-02-09 04:03:42,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:03:42,849 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:03:42,849 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:03:42,849 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable192 [2022-02-09 04:03:42,849 INFO L402 AbstractCegarLoop]: === Iteration 194 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:03:42,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:03:42,849 INFO L85 PathProgramCache]: Analyzing trace with hash 222451146, now seen corresponding path program 194 times [2022-02-09 04:03:42,849 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:03:42,849 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702668240] [2022-02-09 04:03:42,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:03:42,850 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:03:42,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:03:43,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:03:43,056 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:03:43,056 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702668240] [2022-02-09 04:03:43,056 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702668240] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:03:43,056 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:03:43,056 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:03:43,056 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544747314] [2022-02-09 04:03:43,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:03:43,057 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:03:43,057 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:03:43,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:03:43,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:03:43,057 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) [2022-02-09 04:03:44,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:03:44,378 INFO L93 Difference]: Finished difference Result 6209 states and 20838 transitions. [2022-02-09 04:03:44,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-02-09 04:03:44,378 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 [2022-02-09 04:03:44,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:03:44,391 INFO L225 Difference]: With dead ends: 6209 [2022-02-09 04:03:44,391 INFO L226 Difference]: Without dead ends: 6154 [2022-02-09 04:03:44,391 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 602 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=262, Invalid=2390, Unknown=0, NotChecked=0, Total=2652 [2022-02-09 04:03:44,391 INFO L933 BasicCegarLoop]: 167 mSDtfsCounter, 403 mSDsluCounter, 1763 mSDsCounter, 0 mSdLazyCounter, 2195 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.7s IncrementalHoareTripleChecker+Time [2022-02-09 04:03:44,391 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [403 Valid, 1637 Invalid, 2246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 2195 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-09 04:03:44,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6154 states. [2022-02-09 04:03:44,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6154 to 4087. [2022-02-09 04:03:44,450 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) [2022-02-09 04:03:44,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4087 states to 4087 states and 13813 transitions. [2022-02-09 04:03:44,458 INFO L78 Accepts]: Start accepts. Automaton has 4087 states and 13813 transitions. Word has length 39 [2022-02-09 04:03:44,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:03:44,458 INFO L470 AbstractCegarLoop]: Abstraction has 4087 states and 13813 transitions. [2022-02-09 04:03:44,459 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) [2022-02-09 04:03:44,459 INFO L276 IsEmpty]: Start isEmpty. Operand 4087 states and 13813 transitions. [2022-02-09 04:03:44,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:03:44,464 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:03:44,464 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:03:44,464 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable193 [2022-02-09 04:03:44,464 INFO L402 AbstractCegarLoop]: === Iteration 195 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:03:44,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:03:44,465 INFO L85 PathProgramCache]: Analyzing trace with hash 1395103368, now seen corresponding path program 195 times [2022-02-09 04:03:44,465 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:03:44,465 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573976974] [2022-02-09 04:03:44,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:03:44,465 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:03:44,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:03:44,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:03:44,665 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:03:44,665 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573976974] [2022-02-09 04:03:44,665 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573976974] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:03:44,665 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:03:44,665 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:03:44,665 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072781351] [2022-02-09 04:03:44,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:03:44,665 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:03:44,665 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:03:44,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:03:44,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:03:44,665 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) [2022-02-09 04:03:46,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:03:46,234 INFO L93 Difference]: Finished difference Result 7114 states and 23916 transitions. [2022-02-09 04:03:46,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-02-09 04:03:46,234 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 [2022-02-09 04:03:46,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:03:46,250 INFO L225 Difference]: With dead ends: 7114 [2022-02-09 04:03:46,251 INFO L226 Difference]: Without dead ends: 7054 [2022-02-09 04:03:46,251 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 828 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=300, Invalid=3006, Unknown=0, NotChecked=0, Total=3306 [2022-02-09 04:03:46,251 INFO L933 BasicCegarLoop]: 207 mSDtfsCounter, 429 mSDsluCounter, 2130 mSDsCounter, 0 mSdLazyCounter, 2570 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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, 0.8s IncrementalHoareTripleChecker+Time [2022-02-09 04:03:46,251 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [429 Valid, 2048 Invalid, 2625 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 2570 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-09 04:03:46,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7054 states. [2022-02-09 04:03:46,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7054 to 4085. [2022-02-09 04:03:46,318 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) [2022-02-09 04:03:46,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4085 states to 4085 states and 13808 transitions. [2022-02-09 04:03:46,327 INFO L78 Accepts]: Start accepts. Automaton has 4085 states and 13808 transitions. Word has length 39 [2022-02-09 04:03:46,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:03:46,327 INFO L470 AbstractCegarLoop]: Abstraction has 4085 states and 13808 transitions. [2022-02-09 04:03:46,327 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) [2022-02-09 04:03:46,327 INFO L276 IsEmpty]: Start isEmpty. Operand 4085 states and 13808 transitions. [2022-02-09 04:03:46,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:03:46,333 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:03:46,333 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:03:46,333 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable194 [2022-02-09 04:03:46,333 INFO L402 AbstractCegarLoop]: === Iteration 196 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:03:46,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:03:46,334 INFO L85 PathProgramCache]: Analyzing trace with hash -482300234, now seen corresponding path program 196 times [2022-02-09 04:03:46,334 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:03:46,334 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311388130] [2022-02-09 04:03:46,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:03:46,334 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:03:46,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:03:46,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:03:46,537 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:03:46,537 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311388130] [2022-02-09 04:03:46,537 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311388130] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:03:46,537 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:03:46,538 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:03:46,538 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363506776] [2022-02-09 04:03:46,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:03:46,538 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:03:46,538 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:03:46,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:03:46,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:03:46,538 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) [2022-02-09 04:03:47,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:03:47,807 INFO L93 Difference]: Finished difference Result 6178 states and 20792 transitions. [2022-02-09 04:03:47,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-02-09 04:03:47,807 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 [2022-02-09 04:03:47,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:03:47,821 INFO L225 Difference]: With dead ends: 6178 [2022-02-09 04:03:47,821 INFO L226 Difference]: Without dead ends: 6087 [2022-02-09 04:03:47,822 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 572 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=244, Invalid=2306, Unknown=0, NotChecked=0, Total=2550 [2022-02-09 04:03:47,822 INFO L933 BasicCegarLoop]: 174 mSDtfsCounter, 390 mSDsluCounter, 1793 mSDsCounter, 0 mSdLazyCounter, 2171 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.7s IncrementalHoareTripleChecker+Time [2022-02-09 04:03:47,822 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [390 Valid, 1703 Invalid, 2218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 2171 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-09 04:03:47,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6087 states. [2022-02-09 04:03:47,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6087 to 4085. [2022-02-09 04:03:47,893 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) [2022-02-09 04:03:47,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4085 states to 4085 states and 13802 transitions. [2022-02-09 04:03:47,902 INFO L78 Accepts]: Start accepts. Automaton has 4085 states and 13802 transitions. Word has length 39 [2022-02-09 04:03:47,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:03:47,902 INFO L470 AbstractCegarLoop]: Abstraction has 4085 states and 13802 transitions. [2022-02-09 04:03:47,902 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) [2022-02-09 04:03:47,902 INFO L276 IsEmpty]: Start isEmpty. Operand 4085 states and 13802 transitions. [2022-02-09 04:03:47,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:03:47,909 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:03:47,909 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:03:47,909 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable195 [2022-02-09 04:03:47,909 INFO L402 AbstractCegarLoop]: === Iteration 197 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:03:47,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:03:47,910 INFO L85 PathProgramCache]: Analyzing trace with hash -1984782440, now seen corresponding path program 197 times [2022-02-09 04:03:47,910 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:03:47,910 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235939399] [2022-02-09 04:03:47,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:03:47,910 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:03:47,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:03:48,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:03:48,117 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:03:48,117 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235939399] [2022-02-09 04:03:48,117 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235939399] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:03:48,117 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:03:48,117 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:03:48,117 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732047216] [2022-02-09 04:03:48,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:03:48,117 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:03:48,117 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:03:48,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:03:48,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:03:48,117 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) [2022-02-09 04:03:49,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:03:49,733 INFO L93 Difference]: Finished difference Result 7266 states and 24407 transitions. [2022-02-09 04:03:49,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-02-09 04:03:49,734 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 [2022-02-09 04:03:49,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:03:49,751 INFO L225 Difference]: With dead ends: 7266 [2022-02-09 04:03:49,751 INFO L226 Difference]: Without dead ends: 7087 [2022-02-09 04:03:49,751 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 825 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=290, Invalid=3016, Unknown=0, NotChecked=0, Total=3306 [2022-02-09 04:03:49,751 INFO L933 BasicCegarLoop]: 227 mSDtfsCounter, 422 mSDsluCounter, 2284 mSDsCounter, 0 mSdLazyCounter, 2701 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s 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, 0.9s IncrementalHoareTripleChecker+Time [2022-02-09 04:03:49,751 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [422 Valid, 2236 Invalid, 2759 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 2701 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-09 04:03:49,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7087 states. [2022-02-09 04:03:49,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7087 to 4266. [2022-02-09 04:03:49,830 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) [2022-02-09 04:03:49,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4266 states to 4266 states and 14420 transitions. [2022-02-09 04:03:49,839 INFO L78 Accepts]: Start accepts. Automaton has 4266 states and 14420 transitions. Word has length 39 [2022-02-09 04:03:49,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:03:49,839 INFO L470 AbstractCegarLoop]: Abstraction has 4266 states and 14420 transitions. [2022-02-09 04:03:49,839 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) [2022-02-09 04:03:49,840 INFO L276 IsEmpty]: Start isEmpty. Operand 4266 states and 14420 transitions. [2022-02-09 04:03:49,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:03:49,846 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:03:49,846 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] [2022-02-09 04:03:49,846 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable196 [2022-02-09 04:03:49,846 INFO L402 AbstractCegarLoop]: === Iteration 198 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:03:49,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:03:49,846 INFO L85 PathProgramCache]: Analyzing trace with hash -1248064424, now seen corresponding path program 198 times [2022-02-09 04:03:49,847 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:03:49,847 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716820590] [2022-02-09 04:03:49,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:03:49,847 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:03:49,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:03:50,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:03:50,050 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:03:50,050 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716820590] [2022-02-09 04:03:50,050 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716820590] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:03:50,051 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:03:50,051 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:03:50,051 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502754438] [2022-02-09 04:03:50,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:03:50,051 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:03:50,051 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:03:50,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:03:50,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:03:50,051 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) [2022-02-09 04:03:51,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:03:51,497 INFO L93 Difference]: Finished difference Result 4817 states and 16072 transitions. [2022-02-09 04:03:51,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-02-09 04:03:51,498 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 [2022-02-09 04:03:51,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:03:51,507 INFO L225 Difference]: With dead ends: 4817 [2022-02-09 04:03:51,507 INFO L226 Difference]: Without dead ends: 4711 [2022-02-09 04:03:51,507 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 [2022-02-09 04:03:51,507 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 [2022-02-09 04:03:51,507 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] [2022-02-09 04:03:51,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4711 states. [2022-02-09 04:03:51,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4711 to 4288. [2022-02-09 04:03:51,562 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) [2022-02-09 04:03:51,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4288 states to 4288 states and 14496 transitions. [2022-02-09 04:03:51,571 INFO L78 Accepts]: Start accepts. Automaton has 4288 states and 14496 transitions. Word has length 39 [2022-02-09 04:03:51,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:03:51,571 INFO L470 AbstractCegarLoop]: Abstraction has 4288 states and 14496 transitions. [2022-02-09 04:03:51,571 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) [2022-02-09 04:03:51,571 INFO L276 IsEmpty]: Start isEmpty. Operand 4288 states and 14496 transitions. [2022-02-09 04:03:51,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:03:51,577 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:03:51,577 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] [2022-02-09 04:03:51,578 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable197 [2022-02-09 04:03:51,578 INFO L402 AbstractCegarLoop]: === Iteration 199 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:03:51,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:03:51,578 INFO L85 PathProgramCache]: Analyzing trace with hash 1552011972, now seen corresponding path program 199 times [2022-02-09 04:03:51,578 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:03:51,578 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133238573] [2022-02-09 04:03:51,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:03:51,578 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:03:51,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:03:51,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:03:51,779 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:03:51,779 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133238573] [2022-02-09 04:03:51,780 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133238573] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:03:51,780 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:03:51,780 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:03:51,780 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719806604] [2022-02-09 04:03:51,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:03:51,780 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:03:51,780 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:03:51,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:03:51,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:03:51,780 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) [2022-02-09 04:03:53,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:03:53,069 INFO L93 Difference]: Finished difference Result 4854 states and 16096 transitions. [2022-02-09 04:03:53,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-02-09 04:03:53,070 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 [2022-02-09 04:03:53,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:03:53,080 INFO L225 Difference]: With dead ends: 4854 [2022-02-09 04:03:53,080 INFO L226 Difference]: Without dead ends: 4790 [2022-02-09 04:03:53,081 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 753 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=287, Invalid=2793, Unknown=0, NotChecked=0, Total=3080 [2022-02-09 04:03:53,081 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 [2022-02-09 04:03:53,081 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] [2022-02-09 04:03:53,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4790 states. [2022-02-09 04:03:53,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4790 to 4304. [2022-02-09 04:03:53,140 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) [2022-02-09 04:03:53,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4304 states to 4304 states and 14548 transitions. [2022-02-09 04:03:53,149 INFO L78 Accepts]: Start accepts. Automaton has 4304 states and 14548 transitions. Word has length 39 [2022-02-09 04:03:53,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:03:53,149 INFO L470 AbstractCegarLoop]: Abstraction has 4304 states and 14548 transitions. [2022-02-09 04:03:53,149 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) [2022-02-09 04:03:53,149 INFO L276 IsEmpty]: Start isEmpty. Operand 4304 states and 14548 transitions. [2022-02-09 04:03:53,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:03:53,156 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:03:53,156 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:03:53,156 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable198 [2022-02-09 04:03:53,156 INFO L402 AbstractCegarLoop]: === Iteration 200 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:03:53,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:03:53,156 INFO L85 PathProgramCache]: Analyzing trace with hash -1824471754, now seen corresponding path program 200 times [2022-02-09 04:03:53,156 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:03:53,156 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004819084] [2022-02-09 04:03:53,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:03:53,156 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:03:53,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:03:53,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:03:53,389 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:03:53,389 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004819084] [2022-02-09 04:03:53,389 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004819084] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:03:53,389 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:03:53,389 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:03:53,389 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456974515] [2022-02-09 04:03:53,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:03:53,389 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:03:53,389 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:03:53,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:03:53,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:03:53,390 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) [2022-02-09 04:03:54,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:03:54,385 INFO L93 Difference]: Finished difference Result 4752 states and 15828 transitions. [2022-02-09 04:03:54,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-02-09 04:03:54,386 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 [2022-02-09 04:03:54,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:03:54,395 INFO L225 Difference]: With dead ends: 4752 [2022-02-09 04:03:54,395 INFO L226 Difference]: Without dead ends: 4709 [2022-02-09 04:03:54,395 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 [2022-02-09 04:03:54,395 INFO L933 BasicCegarLoop]: 102 mSDtfsCounter, 270 mSDsluCounter, 1215 mSDsCounter, 0 mSdLazyCounter, 1654 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.5s IncrementalHoareTripleChecker+Time [2022-02-09 04:03:54,395 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [270 Valid, 945 Invalid, 1689 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1654 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-09 04:03:54,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4709 states. [2022-02-09 04:03:54,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4709 to 4310. [2022-02-09 04:03:54,444 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) [2022-02-09 04:03:54,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4310 states to 4310 states and 14561 transitions. [2022-02-09 04:03:54,452 INFO L78 Accepts]: Start accepts. Automaton has 4310 states and 14561 transitions. Word has length 39 [2022-02-09 04:03:54,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:03:54,452 INFO L470 AbstractCegarLoop]: Abstraction has 4310 states and 14561 transitions. [2022-02-09 04:03:54,452 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) [2022-02-09 04:03:54,452 INFO L276 IsEmpty]: Start isEmpty. Operand 4310 states and 14561 transitions. [2022-02-09 04:03:54,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:03:54,458 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:03:54,458 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:03:54,458 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable199 [2022-02-09 04:03:54,458 INFO L402 AbstractCegarLoop]: === Iteration 201 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:03:54,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:03:54,458 INFO L85 PathProgramCache]: Analyzing trace with hash -1804323020, now seen corresponding path program 201 times [2022-02-09 04:03:54,458 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:03:54,458 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085149557] [2022-02-09 04:03:54,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:03:54,458 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:03:54,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:03:54,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:03:54,662 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:03:54,662 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085149557] [2022-02-09 04:03:54,662 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085149557] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:03:54,662 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:03:54,662 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:03:54,662 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027940807] [2022-02-09 04:03:54,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:03:54,663 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:03:54,663 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:03:54,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:03:54,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:03:54,663 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) [2022-02-09 04:03:55,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:03:55,773 INFO L93 Difference]: Finished difference Result 4723 states and 15772 transitions. [2022-02-09 04:03:55,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-02-09 04:03:55,774 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 [2022-02-09 04:03:55,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:03:55,784 INFO L225 Difference]: With dead ends: 4723 [2022-02-09 04:03:55,785 INFO L226 Difference]: Without dead ends: 4680 [2022-02-09 04:03:55,785 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 511 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=230, Invalid=2122, Unknown=0, NotChecked=0, Total=2352 [2022-02-09 04:03:55,785 INFO L933 BasicCegarLoop]: 104 mSDtfsCounter, 268 mSDsluCounter, 1225 mSDsCounter, 0 mSdLazyCounter, 1653 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.5s IncrementalHoareTripleChecker+Time [2022-02-09 04:03:55,785 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [268 Valid, 967 Invalid, 1694 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1653 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-09 04:03:55,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4680 states. [2022-02-09 04:03:55,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4680 to 4306. [2022-02-09 04:03:55,867 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) [2022-02-09 04:03:55,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4306 states to 4306 states and 14551 transitions. [2022-02-09 04:03:55,877 INFO L78 Accepts]: Start accepts. Automaton has 4306 states and 14551 transitions. Word has length 39 [2022-02-09 04:03:55,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:03:55,877 INFO L470 AbstractCegarLoop]: Abstraction has 4306 states and 14551 transitions. [2022-02-09 04:03:55,877 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) [2022-02-09 04:03:55,877 INFO L276 IsEmpty]: Start isEmpty. Operand 4306 states and 14551 transitions. [2022-02-09 04:03:55,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:03:55,884 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:03:55,884 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] [2022-02-09 04:03:55,884 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable200 [2022-02-09 04:03:55,884 INFO L402 AbstractCegarLoop]: === Iteration 202 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:03:55,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:03:55,885 INFO L85 PathProgramCache]: Analyzing trace with hash -651819532, now seen corresponding path program 202 times [2022-02-09 04:03:55,885 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:03:55,885 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503715518] [2022-02-09 04:03:55,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:03:55,885 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:03:55,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:03:56,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:03:56,108 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:03:56,108 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503715518] [2022-02-09 04:03:56,108 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503715518] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:03:56,108 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:03:56,108 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:03:56,108 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658403889] [2022-02-09 04:03:56,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:03:56,108 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:03:56,109 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:03:56,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:03:56,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:03:56,109 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) [2022-02-09 04:03:57,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:03:57,129 INFO L93 Difference]: Finished difference Result 4730 states and 15787 transitions. [2022-02-09 04:03:57,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-02-09 04:03:57,130 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 [2022-02-09 04:03:57,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:03:57,140 INFO L225 Difference]: With dead ends: 4730 [2022-02-09 04:03:57,140 INFO L226 Difference]: Without dead ends: 4670 [2022-02-09 04:03:57,140 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 453 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=214, Invalid=1948, Unknown=0, NotChecked=0, Total=2162 [2022-02-09 04:03:57,141 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 277 mSDsluCounter, 1151 mSDsCounter, 0 mSdLazyCounter, 1577 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.5s IncrementalHoareTripleChecker+Time [2022-02-09 04:03:57,141 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [277 Valid, 921 Invalid, 1623 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 1577 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-09 04:03:57,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4670 states. [2022-02-09 04:03:57,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4670 to 4304. [2022-02-09 04:03:57,202 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) [2022-02-09 04:03:57,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4304 states to 4304 states and 14546 transitions. [2022-02-09 04:03:57,211 INFO L78 Accepts]: Start accepts. Automaton has 4304 states and 14546 transitions. Word has length 39 [2022-02-09 04:03:57,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:03:57,211 INFO L470 AbstractCegarLoop]: Abstraction has 4304 states and 14546 transitions. [2022-02-09 04:03:57,212 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) [2022-02-09 04:03:57,212 INFO L276 IsEmpty]: Start isEmpty. Operand 4304 states and 14546 transitions. [2022-02-09 04:03:57,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:03:57,218 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:03:57,218 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] [2022-02-09 04:03:57,218 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable201 [2022-02-09 04:03:57,219 INFO L402 AbstractCegarLoop]: === Iteration 203 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:03:57,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:03:57,219 INFO L85 PathProgramCache]: Analyzing trace with hash 1563581222, now seen corresponding path program 203 times [2022-02-09 04:03:57,219 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:03:57,219 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217440278] [2022-02-09 04:03:57,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:03:57,219 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:03:57,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:03:57,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:03:57,415 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:03:57,415 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217440278] [2022-02-09 04:03:57,415 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217440278] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:03:57,415 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:03:57,415 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-09 04:03:57,415 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766492499] [2022-02-09 04:03:57,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:03:57,415 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-02-09 04:03:57,415 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:03:57,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-02-09 04:03:57,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2022-02-09 04:03:57,416 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) [2022-02-09 04:03:58,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:03:58,327 INFO L93 Difference]: Finished difference Result 4698 states and 15727 transitions. [2022-02-09 04:03:58,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-02-09 04:03:58,328 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 [2022-02-09 04:03:58,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:03:58,337 INFO L225 Difference]: With dead ends: 4698 [2022-02-09 04:03:58,338 INFO L226 Difference]: Without dead ends: 4622 [2022-02-09 04:03:58,338 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 342 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=177, Invalid=1545, Unknown=0, NotChecked=0, Total=1722 [2022-02-09 04:03:58,338 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 241 mSDsluCounter, 1027 mSDsCounter, 0 mSdLazyCounter, 1432 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.5s IncrementalHoareTripleChecker+Time [2022-02-09 04:03:58,338 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [241 Valid, 833 Invalid, 1465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1432 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-09 04:03:58,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4622 states. [2022-02-09 04:03:58,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4622 to 4312. [2022-02-09 04:03:58,392 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) [2022-02-09 04:03:58,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4312 states to 4312 states and 14562 transitions. [2022-02-09 04:03:58,401 INFO L78 Accepts]: Start accepts. Automaton has 4312 states and 14562 transitions. Word has length 39 [2022-02-09 04:03:58,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:03:58,402 INFO L470 AbstractCegarLoop]: Abstraction has 4312 states and 14562 transitions. [2022-02-09 04:03:58,402 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) [2022-02-09 04:03:58,402 INFO L276 IsEmpty]: Start isEmpty. Operand 4312 states and 14562 transitions. [2022-02-09 04:03:58,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:03:58,409 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:03:58,409 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] [2022-02-09 04:03:58,409 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable202 [2022-02-09 04:03:58,409 INFO L402 AbstractCegarLoop]: === Iteration 204 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:03:58,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:03:58,409 INFO L85 PathProgramCache]: Analyzing trace with hash 545527610, now seen corresponding path program 204 times [2022-02-09 04:03:58,409 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:03:58,409 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503767984] [2022-02-09 04:03:58,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:03:58,409 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:03:58,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:03:58,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:03:58,616 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:03:58,616 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503767984] [2022-02-09 04:03:58,616 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503767984] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:03:58,616 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:03:58,616 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:03:58,616 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245912212] [2022-02-09 04:03:58,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:03:58,617 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:03:58,617 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:03:58,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:03:58,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:03:58,617 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) [2022-02-09 04:03:59,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:03:59,579 INFO L93 Difference]: Finished difference Result 4680 states and 15673 transitions. [2022-02-09 04:03:59,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-09 04:03:59,580 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 [2022-02-09 04:03:59,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:03:59,590 INFO L225 Difference]: With dead ends: 4680 [2022-02-09 04:03:59,590 INFO L226 Difference]: Without dead ends: 4610 [2022-02-09 04:03:59,590 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 397 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=193, Invalid=1787, Unknown=0, NotChecked=0, Total=1980 [2022-02-09 04:03:59,590 INFO L933 BasicCegarLoop]: 101 mSDtfsCounter, 260 mSDsluCounter, 1153 mSDsCounter, 0 mSdLazyCounter, 1552 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.5s IncrementalHoareTripleChecker+Time [2022-02-09 04:03:59,591 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [260 Valid, 934 Invalid, 1593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1552 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-09 04:03:59,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4610 states. [2022-02-09 04:03:59,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4610 to 4300. [2022-02-09 04:03:59,647 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) [2022-02-09 04:03:59,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4300 states to 4300 states and 14534 transitions. [2022-02-09 04:03:59,657 INFO L78 Accepts]: Start accepts. Automaton has 4300 states and 14534 transitions. Word has length 39 [2022-02-09 04:03:59,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:03:59,657 INFO L470 AbstractCegarLoop]: Abstraction has 4300 states and 14534 transitions. [2022-02-09 04:03:59,657 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) [2022-02-09 04:03:59,657 INFO L276 IsEmpty]: Start isEmpty. Operand 4300 states and 14534 transitions. [2022-02-09 04:03:59,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:03:59,663 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:03:59,663 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:03:59,663 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable203 [2022-02-09 04:03:59,663 INFO L402 AbstractCegarLoop]: === Iteration 205 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:03:59,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:03:59,664 INFO L85 PathProgramCache]: Analyzing trace with hash 1391711290, now seen corresponding path program 205 times [2022-02-09 04:03:59,664 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:03:59,664 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519649807] [2022-02-09 04:03:59,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:03:59,664 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:03:59,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:03:59,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:03:59,867 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:03:59,867 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519649807] [2022-02-09 04:03:59,868 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519649807] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:03:59,868 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:03:59,868 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:03:59,868 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884861564] [2022-02-09 04:03:59,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:03:59,868 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:03:59,868 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:03:59,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:03:59,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:03:59,868 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) [2022-02-09 04:04:01,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:04:01,542 INFO L93 Difference]: Finished difference Result 6858 states and 23172 transitions. [2022-02-09 04:04:01,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-02-09 04:04:01,543 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 [2022-02-09 04:04:01,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:04:01,559 INFO L225 Difference]: With dead ends: 6858 [2022-02-09 04:04:01,559 INFO L226 Difference]: Without dead ends: 6815 [2022-02-09 04:04:01,560 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1182 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=380, Invalid=3910, Unknown=0, NotChecked=0, Total=4290 [2022-02-09 04:04:01,560 INFO L933 BasicCegarLoop]: 169 mSDtfsCounter, 481 mSDsluCounter, 1824 mSDsCounter, 0 mSdLazyCounter, 2331 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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, 0.8s IncrementalHoareTripleChecker+Time [2022-02-09 04:04:01,560 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [481 Valid, 1697 Invalid, 2419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 2331 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-09 04:04:01,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6815 states. [2022-02-09 04:04:01,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6815 to 4326. [2022-02-09 04:04:01,639 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) [2022-02-09 04:04:01,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4326 states to 4326 states and 14617 transitions. [2022-02-09 04:04:01,649 INFO L78 Accepts]: Start accepts. Automaton has 4326 states and 14617 transitions. Word has length 39 [2022-02-09 04:04:01,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:04:01,649 INFO L470 AbstractCegarLoop]: Abstraction has 4326 states and 14617 transitions. [2022-02-09 04:04:01,649 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) [2022-02-09 04:04:01,650 INFO L276 IsEmpty]: Start isEmpty. Operand 4326 states and 14617 transitions. [2022-02-09 04:04:01,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:04:01,656 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:04:01,657 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] [2022-02-09 04:04:01,657 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable204 [2022-02-09 04:04:01,657 INFO L402 AbstractCegarLoop]: === Iteration 206 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:04:01,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:04:01,657 INFO L85 PathProgramCache]: Analyzing trace with hash -388887012, now seen corresponding path program 206 times [2022-02-09 04:04:01,657 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:04:01,657 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823584769] [2022-02-09 04:04:01,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:04:01,657 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:04:01,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:04:01,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:04:01,858 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:04:01,858 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823584769] [2022-02-09 04:04:01,858 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823584769] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:04:01,858 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:04:01,858 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:04:01,858 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581474226] [2022-02-09 04:04:01,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:04:01,858 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:04:01,858 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:04:01,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:04:01,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:04:01,858 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) [2022-02-09 04:04:03,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:04:03,825 INFO L93 Difference]: Finished difference Result 7715 states and 26114 transitions. [2022-02-09 04:04:03,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2022-02-09 04:04:03,825 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 [2022-02-09 04:04:03,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:04:03,843 INFO L225 Difference]: With dead ends: 7715 [2022-02-09 04:04:03,843 INFO L226 Difference]: Without dead ends: 7663 [2022-02-09 04:04:03,843 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1544 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=429, Invalid=4827, Unknown=0, NotChecked=0, Total=5256 [2022-02-09 04:04:03,844 INFO L933 BasicCegarLoop]: 209 mSDtfsCounter, 523 mSDsluCounter, 2172 mSDsCounter, 0 mSdLazyCounter, 2713 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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, 0.9s IncrementalHoareTripleChecker+Time [2022-02-09 04:04:03,844 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [523 Valid, 2087 Invalid, 2809 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 2713 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-09 04:04:03,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7663 states. [2022-02-09 04:04:03,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7663 to 4300. [2022-02-09 04:04:03,921 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) [2022-02-09 04:04:03,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4300 states to 4300 states and 14534 transitions. [2022-02-09 04:04:03,931 INFO L78 Accepts]: Start accepts. Automaton has 4300 states and 14534 transitions. Word has length 39 [2022-02-09 04:04:03,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:04:03,931 INFO L470 AbstractCegarLoop]: Abstraction has 4300 states and 14534 transitions. [2022-02-09 04:04:03,931 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) [2022-02-09 04:04:03,931 INFO L276 IsEmpty]: Start isEmpty. Operand 4300 states and 14534 transitions. [2022-02-09 04:04:03,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:04:03,939 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:04:03,939 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] [2022-02-09 04:04:03,940 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable205 [2022-02-09 04:04:03,940 INFO L402 AbstractCegarLoop]: === Iteration 207 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:04:03,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:04:03,940 INFO L85 PathProgramCache]: Analyzing trace with hash -1984772436, now seen corresponding path program 207 times [2022-02-09 04:04:03,940 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:04:03,940 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365628645] [2022-02-09 04:04:03,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:04:03,940 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:04:03,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:04:04,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:04:04,163 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:04:04,163 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365628645] [2022-02-09 04:04:04,164 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365628645] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:04:04,164 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:04:04,164 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:04:04,164 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87099628] [2022-02-09 04:04:04,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:04:04,164 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:04:04,164 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:04:04,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:04:04,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:04:04,164 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) [2022-02-09 04:04:05,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:04:05,367 INFO L93 Difference]: Finished difference Result 6351 states and 21238 transitions. [2022-02-09 04:04:05,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-02-09 04:04:05,367 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 [2022-02-09 04:04:05,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:04:05,383 INFO L225 Difference]: With dead ends: 6351 [2022-02-09 04:04:05,384 INFO L226 Difference]: Without dead ends: 6296 [2022-02-09 04:04:05,384 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 512 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=232, Invalid=2120, Unknown=0, NotChecked=0, Total=2352 [2022-02-09 04:04:05,384 INFO L933 BasicCegarLoop]: 158 mSDtfsCounter, 376 mSDsluCounter, 1686 mSDsCounter, 0 mSdLazyCounter, 2032 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.7s IncrementalHoareTripleChecker+Time [2022-02-09 04:04:05,384 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [376 Valid, 1551 Invalid, 2079 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 2032 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-09 04:04:05,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6296 states. [2022-02-09 04:04:05,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6296 to 4320. [2022-02-09 04:04:05,460 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) [2022-02-09 04:04:05,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4320 states to 4320 states and 14600 transitions. [2022-02-09 04:04:05,501 INFO L78 Accepts]: Start accepts. Automaton has 4320 states and 14600 transitions. Word has length 39 [2022-02-09 04:04:05,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:04:05,501 INFO L470 AbstractCegarLoop]: Abstraction has 4320 states and 14600 transitions. [2022-02-09 04:04:05,501 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) [2022-02-09 04:04:05,501 INFO L276 IsEmpty]: Start isEmpty. Operand 4320 states and 14600 transitions. [2022-02-09 04:04:05,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:04:05,507 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:04:05,507 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:04:05,508 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable206 [2022-02-09 04:04:05,508 INFO L402 AbstractCegarLoop]: === Iteration 208 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:04:05,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:04:05,508 INFO L85 PathProgramCache]: Analyzing trace with hash -812120214, now seen corresponding path program 208 times [2022-02-09 04:04:05,508 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:04:05,508 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409621736] [2022-02-09 04:04:05,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:04:05,508 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:04:05,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:04:05,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:04:05,708 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:04:05,708 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409621736] [2022-02-09 04:04:05,708 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409621736] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:04:05,708 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:04:05,708 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:04:05,709 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482641135] [2022-02-09 04:04:05,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:04:05,709 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:04:05,709 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:04:05,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:04:05,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:04:05,709 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) [2022-02-09 04:04:07,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:04:07,352 INFO L93 Difference]: Finished difference Result 7052 states and 23686 transitions. [2022-02-09 04:04:07,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-02-09 04:04:07,352 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 [2022-02-09 04:04:07,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:04:07,367 INFO L225 Difference]: With dead ends: 7052 [2022-02-09 04:04:07,367 INFO L226 Difference]: Without dead ends: 6992 [2022-02-09 04:04:07,368 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 830 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=301, Invalid=3005, Unknown=0, NotChecked=0, Total=3306 [2022-02-09 04:04:07,368 INFO L933 BasicCegarLoop]: 198 mSDtfsCounter, 422 mSDsluCounter, 2043 mSDsCounter, 0 mSdLazyCounter, 2393 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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, 0.9s IncrementalHoareTripleChecker+Time [2022-02-09 04:04:07,368 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [422 Valid, 1952 Invalid, 2453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 2393 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-09 04:04:07,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6992 states. [2022-02-09 04:04:07,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6992 to 4318. [2022-02-09 04:04:07,439 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) [2022-02-09 04:04:07,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4318 states to 4318 states and 14595 transitions. [2022-02-09 04:04:07,449 INFO L78 Accepts]: Start accepts. Automaton has 4318 states and 14595 transitions. Word has length 39 [2022-02-09 04:04:07,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:04:07,449 INFO L470 AbstractCegarLoop]: Abstraction has 4318 states and 14595 transitions. [2022-02-09 04:04:07,449 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) [2022-02-09 04:04:07,449 INFO L276 IsEmpty]: Start isEmpty. Operand 4318 states and 14595 transitions. [2022-02-09 04:04:07,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:04:07,455 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:04:07,455 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] [2022-02-09 04:04:07,455 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable207 [2022-02-09 04:04:07,455 INFO L402 AbstractCegarLoop]: === Iteration 209 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:04:07,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:04:07,455 INFO L85 PathProgramCache]: Analyzing trace with hash 1605443480, now seen corresponding path program 209 times [2022-02-09 04:04:07,455 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:04:07,456 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359511426] [2022-02-09 04:04:07,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:04:07,456 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:04:07,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:04:07,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:04:07,654 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:04:07,655 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359511426] [2022-02-09 04:04:07,655 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359511426] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:04:07,655 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:04:07,655 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:04:07,655 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149032464] [2022-02-09 04:04:07,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:04:07,655 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:04:07,655 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:04:07,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:04:07,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:04:07,655 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) [2022-02-09 04:04:08,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:04:08,792 INFO L93 Difference]: Finished difference Result 6272 states and 21064 transitions. [2022-02-09 04:04:08,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-02-09 04:04:08,792 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 [2022-02-09 04:04:08,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:04:08,806 INFO L225 Difference]: With dead ends: 6272 [2022-02-09 04:04:08,806 INFO L226 Difference]: Without dead ends: 6181 [2022-02-09 04:04:08,807 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 [2022-02-09 04:04:08,807 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 04:04:08,807 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [353 Valid, 1619 Invalid, 2047 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 2006 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 04:04:08,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6181 states. [2022-02-09 04:04:08,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6181 to 4318. [2022-02-09 04:04:08,880 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) [2022-02-09 04:04:08,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4318 states to 4318 states and 14589 transitions. [2022-02-09 04:04:08,890 INFO L78 Accepts]: Start accepts. Automaton has 4318 states and 14589 transitions. Word has length 39 [2022-02-09 04:04:08,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:04:08,890 INFO L470 AbstractCegarLoop]: Abstraction has 4318 states and 14589 transitions. [2022-02-09 04:04:08,890 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) [2022-02-09 04:04:08,890 INFO L276 IsEmpty]: Start isEmpty. Operand 4318 states and 14589 transitions. [2022-02-09 04:04:08,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:04:08,897 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:04:08,897 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:04:08,897 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable208 [2022-02-09 04:04:08,897 INFO L402 AbstractCegarLoop]: === Iteration 210 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:04:08,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:04:08,897 INFO L85 PathProgramCache]: Analyzing trace with hash 102961274, now seen corresponding path program 210 times [2022-02-09 04:04:08,897 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:04:08,897 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792242905] [2022-02-09 04:04:08,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:04:08,897 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:04:08,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:04:09,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:04:09,104 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:04:09,105 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792242905] [2022-02-09 04:04:09,105 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792242905] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:04:09,105 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:04:09,105 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:04:09,105 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149175854] [2022-02-09 04:04:09,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:04:09,105 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:04:09,105 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:04:09,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:04:09,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:04:09,105 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) [2022-02-09 04:04:10,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:04:10,652 INFO L93 Difference]: Finished difference Result 7142 states and 24051 transitions. [2022-02-09 04:04:10,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-02-09 04:04:10,652 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 [2022-02-09 04:04:10,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:04:10,688 INFO L225 Difference]: With dead ends: 7142 [2022-02-09 04:04:10,688 INFO L226 Difference]: Without dead ends: 7042 [2022-02-09 04:04:10,689 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 870 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=303, Invalid=3119, Unknown=0, NotChecked=0, Total=3422 [2022-02-09 04:04:10,689 INFO L933 BasicCegarLoop]: 222 mSDtfsCounter, 415 mSDsluCounter, 2226 mSDsCounter, 0 mSdLazyCounter, 2598 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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, 0.8s IncrementalHoareTripleChecker+Time [2022-02-09 04:04:10,689 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [415 Valid, 2166 Invalid, 2661 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 2598 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-09 04:04:10,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7042 states. [2022-02-09 04:04:10,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7042 to 4300. [2022-02-09 04:04:10,743 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) [2022-02-09 04:04:10,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4300 states to 4300 states and 14528 transitions. [2022-02-09 04:04:10,751 INFO L78 Accepts]: Start accepts. Automaton has 4300 states and 14528 transitions. Word has length 39 [2022-02-09 04:04:10,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:04:10,751 INFO L470 AbstractCegarLoop]: Abstraction has 4300 states and 14528 transitions. [2022-02-09 04:04:10,751 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) [2022-02-09 04:04:10,751 INFO L276 IsEmpty]: Start isEmpty. Operand 4300 states and 14528 transitions. [2022-02-09 04:04:10,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:04:10,757 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:04:10,757 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] [2022-02-09 04:04:10,757 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable209 [2022-02-09 04:04:10,757 INFO L402 AbstractCegarLoop]: === Iteration 211 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:04:10,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:04:10,758 INFO L85 PathProgramCache]: Analyzing trace with hash -133663722, now seen corresponding path program 211 times [2022-02-09 04:04:10,758 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:04:10,758 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091237950] [2022-02-09 04:04:10,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:04:10,758 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:04:10,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:04:10,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:04:10,946 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:04:10,946 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091237950] [2022-02-09 04:04:10,946 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091237950] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:04:10,946 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:04:10,946 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-09 04:04:10,946 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480256695] [2022-02-09 04:04:10,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:04:10,946 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-02-09 04:04:10,946 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:04:10,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-02-09 04:04:10,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2022-02-09 04:04:10,947 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) [2022-02-09 04:04:11,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:04:11,776 INFO L93 Difference]: Finished difference Result 4629 states and 15530 transitions. [2022-02-09 04:04:11,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-02-09 04:04:11,776 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 [2022-02-09 04:04:11,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:04:11,786 INFO L225 Difference]: With dead ends: 4629 [2022-02-09 04:04:11,786 INFO L226 Difference]: Without dead ends: 4553 [2022-02-09 04:04:11,787 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 [2022-02-09 04:04:11,787 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 215 mSDsluCounter, 1015 mSDsCounter, 0 mSdLazyCounter, 1408 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.5s IncrementalHoareTripleChecker+Time [2022-02-09 04:04:11,787 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [215 Valid, 830 Invalid, 1435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1408 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-09 04:04:11,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4553 states. [2022-02-09 04:04:11,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4553 to 4332. [2022-02-09 04:04:11,846 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) [2022-02-09 04:04:11,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4332 states to 4332 states and 14616 transitions. [2022-02-09 04:04:11,856 INFO L78 Accepts]: Start accepts. Automaton has 4332 states and 14616 transitions. Word has length 39 [2022-02-09 04:04:11,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:04:11,856 INFO L470 AbstractCegarLoop]: Abstraction has 4332 states and 14616 transitions. [2022-02-09 04:04:11,856 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) [2022-02-09 04:04:11,856 INFO L276 IsEmpty]: Start isEmpty. Operand 4332 states and 14616 transitions. [2022-02-09 04:04:11,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:04:11,863 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:04:11,863 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] [2022-02-09 04:04:11,863 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable210 [2022-02-09 04:04:11,863 INFO L402 AbstractCegarLoop]: === Iteration 212 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:04:11,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:04:11,863 INFO L85 PathProgramCache]: Analyzing trace with hash -1151717334, now seen corresponding path program 212 times [2022-02-09 04:04:11,863 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:04:11,863 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936607138] [2022-02-09 04:04:11,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:04:11,863 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:04:11,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:04:12,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:04:12,079 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:04:12,079 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936607138] [2022-02-09 04:04:12,079 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936607138] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:04:12,079 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:04:12,079 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:04:12,079 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072931664] [2022-02-09 04:04:12,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:04:12,079 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:04:12,079 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:04:12,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:04:12,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:04:12,080 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) [2022-02-09 04:04:12,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:04:12,989 INFO L93 Difference]: Finished difference Result 4611 states and 15476 transitions. [2022-02-09 04:04:12,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-02-09 04:04:12,989 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 [2022-02-09 04:04:12,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:04:12,999 INFO L225 Difference]: With dead ends: 4611 [2022-02-09 04:04:12,999 INFO L226 Difference]: Without dead ends: 4545 [2022-02-09 04:04:13,000 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 341 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=178, Invalid=1628, Unknown=0, NotChecked=0, Total=1806 [2022-02-09 04:04:13,000 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 242 mSDsluCounter, 1099 mSDsCounter, 0 mSdLazyCounter, 1496 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.5s IncrementalHoareTripleChecker+Time [2022-02-09 04:04:13,000 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [242 Valid, 914 Invalid, 1532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1496 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-09 04:04:13,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4545 states. [2022-02-09 04:04:13,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4545 to 4324. [2022-02-09 04:04:13,059 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) [2022-02-09 04:04:13,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4324 states to 4324 states and 14592 transitions. [2022-02-09 04:04:13,069 INFO L78 Accepts]: Start accepts. Automaton has 4324 states and 14592 transitions. Word has length 39 [2022-02-09 04:04:13,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:04:13,069 INFO L470 AbstractCegarLoop]: Abstraction has 4324 states and 14592 transitions. [2022-02-09 04:04:13,069 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) [2022-02-09 04:04:13,070 INFO L276 IsEmpty]: Start isEmpty. Operand 4324 states and 14592 transitions. [2022-02-09 04:04:13,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:04:13,076 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:04:13,076 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:04:13,076 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable211 [2022-02-09 04:04:13,076 INFO L402 AbstractCegarLoop]: === Iteration 213 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:04:13,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:04:13,077 INFO L85 PathProgramCache]: Analyzing trace with hash -1433982988, now seen corresponding path program 213 times [2022-02-09 04:04:13,077 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:04:13,077 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17776065] [2022-02-09 04:04:13,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:04:13,077 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:04:13,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:04:13,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:04:13,278 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:04:13,279 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17776065] [2022-02-09 04:04:13,279 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17776065] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:04:13,279 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:04:13,279 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:04:13,279 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497370418] [2022-02-09 04:04:13,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:04:13,279 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:04:13,279 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:04:13,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:04:13,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:04:13,279 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) [2022-02-09 04:04:14,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:04:14,180 INFO L93 Difference]: Finished difference Result 4632 states and 15529 transitions. [2022-02-09 04:04:14,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-02-09 04:04:14,180 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 [2022-02-09 04:04:14,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:04:14,189 INFO L225 Difference]: With dead ends: 4632 [2022-02-09 04:04:14,189 INFO L226 Difference]: Without dead ends: 4470 [2022-02-09 04:04:14,190 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 [2022-02-09 04:04:14,190 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 [2022-02-09 04:04:14,190 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] [2022-02-09 04:04:14,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4470 states. [2022-02-09 04:04:14,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4470 to 4256. [2022-02-09 04:04:14,238 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) [2022-02-09 04:04:14,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4256 states to 4256 states and 14396 transitions. [2022-02-09 04:04:14,246 INFO L78 Accepts]: Start accepts. Automaton has 4256 states and 14396 transitions. Word has length 39 [2022-02-09 04:04:14,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:04:14,246 INFO L470 AbstractCegarLoop]: Abstraction has 4256 states and 14396 transitions. [2022-02-09 04:04:14,246 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) [2022-02-09 04:04:14,247 INFO L276 IsEmpty]: Start isEmpty. Operand 4256 states and 14396 transitions. [2022-02-09 04:04:14,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:04:14,252 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:04:14,252 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:04:14,252 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable212 [2022-02-09 04:04:14,252 INFO L402 AbstractCegarLoop]: === Iteration 214 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:04:14,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:04:14,253 INFO L85 PathProgramCache]: Analyzing trace with hash 755420440, now seen corresponding path program 214 times [2022-02-09 04:04:14,253 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:04:14,253 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321817200] [2022-02-09 04:04:14,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:04:14,253 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:04:14,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:04:14,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:04:14,452 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:04:14,452 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321817200] [2022-02-09 04:04:14,452 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321817200] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:04:14,452 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:04:14,452 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:04:14,452 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321106885] [2022-02-09 04:04:14,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:04:14,452 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:04:14,452 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:04:14,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:04:14,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:04:14,453 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) [2022-02-09 04:04:15,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:04:15,945 INFO L93 Difference]: Finished difference Result 5381 states and 18242 transitions. [2022-02-09 04:04:15,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-02-09 04:04:15,945 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 [2022-02-09 04:04:15,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:04:15,957 INFO L225 Difference]: With dead ends: 5381 [2022-02-09 04:04:15,957 INFO L226 Difference]: Without dead ends: 5314 [2022-02-09 04:04:15,957 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 [2022-02-09 04:04:15,957 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 [2022-02-09 04:04:15,957 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] [2022-02-09 04:04:15,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5314 states. [2022-02-09 04:04:16,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5314 to 4394. [2022-02-09 04:04:16,018 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) [2022-02-09 04:04:16,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4394 states to 4394 states and 14852 transitions. [2022-02-09 04:04:16,028 INFO L78 Accepts]: Start accepts. Automaton has 4394 states and 14852 transitions. Word has length 39 [2022-02-09 04:04:16,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:04:16,028 INFO L470 AbstractCegarLoop]: Abstraction has 4394 states and 14852 transitions. [2022-02-09 04:04:16,029 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) [2022-02-09 04:04:16,029 INFO L276 IsEmpty]: Start isEmpty. Operand 4394 states and 14852 transitions. [2022-02-09 04:04:16,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:04:16,035 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:04:16,035 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:04:16,035 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable213 [2022-02-09 04:04:16,035 INFO L402 AbstractCegarLoop]: === Iteration 215 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:04:16,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:04:16,036 INFO L85 PathProgramCache]: Analyzing trace with hash -964195530, now seen corresponding path program 215 times [2022-02-09 04:04:16,036 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:04:16,036 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604938421] [2022-02-09 04:04:16,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:04:16,036 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:04:16,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:04:16,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:04:16,235 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:04:16,235 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604938421] [2022-02-09 04:04:16,235 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604938421] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:04:16,235 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:04:16,235 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:04:16,235 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071285662] [2022-02-09 04:04:16,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:04:16,235 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:04:16,235 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:04:16,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:04:16,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:04:16,236 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) [2022-02-09 04:04:18,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:04:18,223 INFO L93 Difference]: Finished difference Result 5477 states and 18503 transitions. [2022-02-09 04:04:18,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-02-09 04:04:18,223 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 [2022-02-09 04:04:18,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:04:18,235 INFO L225 Difference]: With dead ends: 5477 [2022-02-09 04:04:18,235 INFO L226 Difference]: Without dead ends: 5434 [2022-02-09 04:04:18,235 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1586 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=476, Invalid=4926, Unknown=0, NotChecked=0, Total=5402 [2022-02-09 04:04:18,236 INFO L933 BasicCegarLoop]: 130 mSDtfsCounter, 355 mSDsluCounter, 1450 mSDsCounter, 0 mSdLazyCounter, 2357 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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, 0.8s IncrementalHoareTripleChecker+Time [2022-02-09 04:04:18,236 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [355 Valid, 1241 Invalid, 2442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 2357 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-09 04:04:18,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5434 states. [2022-02-09 04:04:18,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5434 to 4400. [2022-02-09 04:04:18,299 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) [2022-02-09 04:04:18,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4400 states to 4400 states and 14865 transitions. [2022-02-09 04:04:18,308 INFO L78 Accepts]: Start accepts. Automaton has 4400 states and 14865 transitions. Word has length 39 [2022-02-09 04:04:18,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:04:18,309 INFO L470 AbstractCegarLoop]: Abstraction has 4400 states and 14865 transitions. [2022-02-09 04:04:18,309 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) [2022-02-09 04:04:18,309 INFO L276 IsEmpty]: Start isEmpty. Operand 4400 states and 14865 transitions. [2022-02-09 04:04:18,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:04:18,315 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:04:18,315 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:04:18,315 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable214 [2022-02-09 04:04:18,316 INFO L402 AbstractCegarLoop]: === Iteration 216 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:04:18,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:04:18,316 INFO L85 PathProgramCache]: Analyzing trace with hash 1550173464, now seen corresponding path program 216 times [2022-02-09 04:04:18,316 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:04:18,316 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678577136] [2022-02-09 04:04:18,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:04:18,316 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:04:18,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:04:18,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:04:18,516 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:04:18,516 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678577136] [2022-02-09 04:04:18,516 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678577136] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:04:18,516 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:04:18,516 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:04:18,516 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137097426] [2022-02-09 04:04:18,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:04:18,516 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:04:18,516 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:04:18,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:04:18,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:04:18,517 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) [2022-02-09 04:04:20,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:04:20,468 INFO L93 Difference]: Finished difference Result 5408 states and 18323 transitions. [2022-02-09 04:04:20,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-02-09 04:04:20,469 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 [2022-02-09 04:04:20,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:04:20,480 INFO L225 Difference]: With dead ends: 5408 [2022-02-09 04:04:20,480 INFO L226 Difference]: Without dead ends: 5344 [2022-02-09 04:04:20,481 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1528 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=469, Invalid=4787, Unknown=0, NotChecked=0, Total=5256 [2022-02-09 04:04:20,481 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, 0.8s IncrementalHoareTripleChecker+Time [2022-02-09 04:04:20,481 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [332 Valid, 1207 Invalid, 2373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 2290 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-09 04:04:20,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5344 states. [2022-02-09 04:04:20,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5344 to 4382. [2022-02-09 04:04:20,560 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) [2022-02-09 04:04:20,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4382 states to 4382 states and 14814 transitions. [2022-02-09 04:04:20,570 INFO L78 Accepts]: Start accepts. Automaton has 4382 states and 14814 transitions. Word has length 39 [2022-02-09 04:04:20,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:04:20,570 INFO L470 AbstractCegarLoop]: Abstraction has 4382 states and 14814 transitions. [2022-02-09 04:04:20,570 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) [2022-02-09 04:04:20,570 INFO L276 IsEmpty]: Start isEmpty. Operand 4382 states and 14814 transitions. [2022-02-09 04:04:20,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:04:20,577 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:04:20,577 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] [2022-02-09 04:04:20,577 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable215 [2022-02-09 04:04:20,577 INFO L402 AbstractCegarLoop]: === Iteration 217 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:04:20,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:04:20,577 INFO L85 PathProgramCache]: Analyzing trace with hash 1141357848, now seen corresponding path program 217 times [2022-02-09 04:04:20,577 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:04:20,577 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362663237] [2022-02-09 04:04:20,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:04:20,577 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:04:20,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:04:20,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:04:20,779 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:04:20,779 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362663237] [2022-02-09 04:04:20,779 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362663237] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:04:20,779 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:04:20,779 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:04:20,779 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75836496] [2022-02-09 04:04:20,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:04:20,780 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:04:20,780 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:04:20,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:04:20,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:04:20,780 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) [2022-02-09 04:04:22,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:04:22,634 INFO L93 Difference]: Finished difference Result 5411 states and 18300 transitions. [2022-02-09 04:04:22,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-02-09 04:04:22,634 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 [2022-02-09 04:04:22,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:04:22,645 INFO L225 Difference]: With dead ends: 5411 [2022-02-09 04:04:22,645 INFO L226 Difference]: Without dead ends: 5281 [2022-02-09 04:04:22,646 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1268 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=402, Invalid=4154, Unknown=0, NotChecked=0, Total=4556 [2022-02-09 04:04:22,646 INFO L933 BasicCegarLoop]: 139 mSDtfsCounter, 323 mSDsluCounter, 1502 mSDsCounter, 0 mSdLazyCounter, 2436 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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, 0.8s IncrementalHoareTripleChecker+Time [2022-02-09 04:04:22,646 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [323 Valid, 1282 Invalid, 2513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 2436 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-09 04:04:22,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5281 states. [2022-02-09 04:04:22,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5281 to 4358. [2022-02-09 04:04:22,708 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) [2022-02-09 04:04:22,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4358 states to 4358 states and 14742 transitions. [2022-02-09 04:04:22,717 INFO L78 Accepts]: Start accepts. Automaton has 4358 states and 14742 transitions. Word has length 39 [2022-02-09 04:04:22,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:04:22,717 INFO L470 AbstractCegarLoop]: Abstraction has 4358 states and 14742 transitions. [2022-02-09 04:04:22,717 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) [2022-02-09 04:04:22,717 INFO L276 IsEmpty]: Start isEmpty. Operand 4358 states and 14742 transitions. [2022-02-09 04:04:22,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:04:22,723 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:04:22,724 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] [2022-02-09 04:04:22,724 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable216 [2022-02-09 04:04:22,724 INFO L402 AbstractCegarLoop]: === Iteration 218 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:04:22,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:04:22,724 INFO L85 PathProgramCache]: Analyzing trace with hash -1315657596, now seen corresponding path program 218 times [2022-02-09 04:04:22,724 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:04:22,724 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600063307] [2022-02-09 04:04:22,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:04:22,724 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:04:22,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:04:22,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:04:22,949 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:04:22,949 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600063307] [2022-02-09 04:04:22,949 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600063307] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:04:22,949 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:04:22,949 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:04:22,949 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470478957] [2022-02-09 04:04:22,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:04:22,950 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:04:22,950 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:04:22,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:04:22,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:04:22,950 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) [2022-02-09 04:04:24,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:04:24,693 INFO L93 Difference]: Finished difference Result 5465 states and 18464 transitions. [2022-02-09 04:04:24,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-02-09 04:04:24,693 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 [2022-02-09 04:04:24,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:04:24,705 INFO L225 Difference]: With dead ends: 5465 [2022-02-09 04:04:24,705 INFO L226 Difference]: Without dead ends: 5398 [2022-02-09 04:04:24,706 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1278 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=427, Invalid=4265, Unknown=0, NotChecked=0, Total=4692 [2022-02-09 04:04:24,706 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 [2022-02-09 04:04:24,706 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] [2022-02-09 04:04:24,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5398 states. [2022-02-09 04:04:24,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5398 to 4392. [2022-02-09 04:04:24,774 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) [2022-02-09 04:04:24,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4392 states to 4392 states and 14852 transitions. [2022-02-09 04:04:24,783 INFO L78 Accepts]: Start accepts. Automaton has 4392 states and 14852 transitions. Word has length 39 [2022-02-09 04:04:24,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:04:24,783 INFO L470 AbstractCegarLoop]: Abstraction has 4392 states and 14852 transitions. [2022-02-09 04:04:24,783 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:04:24,784 INFO L276 IsEmpty]: Start isEmpty. Operand 4392 states and 14852 transitions. [2022-02-09 04:04:24,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:04:24,790 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:04:24,790 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:04:24,790 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable217 [2022-02-09 04:04:24,790 INFO L402 AbstractCegarLoop]: === Iteration 219 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:04:24,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:04:24,791 INFO L85 PathProgramCache]: Analyzing trace with hash 1259693730, now seen corresponding path program 219 times [2022-02-09 04:04:24,791 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:04:24,791 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762991969] [2022-02-09 04:04:24,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:04:24,791 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:04:24,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:04:25,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:04:25,017 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:04:25,017 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762991969] [2022-02-09 04:04:25,017 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762991969] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:04:25,017 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:04:25,017 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:04:25,017 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455603462] [2022-02-09 04:04:25,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:04:25,017 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:04:25,017 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:04:25,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:04:25,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:04:25,018 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) [2022-02-09 04:04:27,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:04:27,285 INFO L93 Difference]: Finished difference Result 5594 states and 18791 transitions. [2022-02-09 04:04:27,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2022-02-09 04:04:27,285 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:04:27,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:04:27,297 INFO L225 Difference]: With dead ends: 5594 [2022-02-09 04:04:27,297 INFO L226 Difference]: Without dead ends: 5551 [2022-02-09 04:04:27,298 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2061 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=570, Invalid=6236, Unknown=0, NotChecked=0, Total=6806 [2022-02-09 04:04:27,298 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, 0.9s IncrementalHoareTripleChecker+Time [2022-02-09 04:04:27,298 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [375 Valid, 1431 Invalid, 2672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 2571 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-09 04:04:27,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5551 states. [2022-02-09 04:04:27,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5551 to 4398. [2022-02-09 04:04:27,371 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) [2022-02-09 04:04:27,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4398 states to 4398 states and 14865 transitions. [2022-02-09 04:04:27,381 INFO L78 Accepts]: Start accepts. Automaton has 4398 states and 14865 transitions. Word has length 39 [2022-02-09 04:04:27,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:04:27,381 INFO L470 AbstractCegarLoop]: Abstraction has 4398 states and 14865 transitions. [2022-02-09 04:04:27,381 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:04:27,381 INFO L276 IsEmpty]: Start isEmpty. Operand 4398 states and 14865 transitions. [2022-02-09 04:04:27,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:04:27,388 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:04:27,388 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:04:27,388 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable218 [2022-02-09 04:04:27,388 INFO L402 AbstractCegarLoop]: === Iteration 220 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:04:27,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:04:27,388 INFO L85 PathProgramCache]: Analyzing trace with hash -520904572, now seen corresponding path program 220 times [2022-02-09 04:04:27,388 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:04:27,388 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652213804] [2022-02-09 04:04:27,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:04:27,388 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:04:27,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:04:27,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:04:27,605 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:04:27,605 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652213804] [2022-02-09 04:04:27,606 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652213804] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:04:27,606 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:04:27,606 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:04:27,606 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721878279] [2022-02-09 04:04:27,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:04:27,606 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:04:27,606 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:04:27,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:04:27,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:04:27,606 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) [2022-02-09 04:04:29,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:04:29,791 INFO L93 Difference]: Finished difference Result 5525 states and 18611 transitions. [2022-02-09 04:04:29,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2022-02-09 04:04:29,791 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 [2022-02-09 04:04:29,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:04:29,802 INFO L225 Difference]: With dead ends: 5525 [2022-02-09 04:04:29,802 INFO L226 Difference]: Without dead ends: 5461 [2022-02-09 04:04:29,802 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 [2022-02-09 04:04:29,802 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, 0.8s IncrementalHoareTripleChecker+Time [2022-02-09 04:04:29,803 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [356 Valid, 1373 Invalid, 2588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 2491 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-09 04:04:29,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5461 states. [2022-02-09 04:04:29,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5461 to 4376. [2022-02-09 04:04:29,861 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) [2022-02-09 04:04:29,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4376 states to 4376 states and 14812 transitions. [2022-02-09 04:04:29,871 INFO L78 Accepts]: Start accepts. Automaton has 4376 states and 14812 transitions. Word has length 39 [2022-02-09 04:04:29,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:04:29,871 INFO L470 AbstractCegarLoop]: Abstraction has 4376 states and 14812 transitions. [2022-02-09 04:04:29,871 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:04:29,871 INFO L276 IsEmpty]: Start isEmpty. Operand 4376 states and 14812 transitions. [2022-02-09 04:04:29,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:04:29,877 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:04:29,877 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:04:29,877 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable219 [2022-02-09 04:04:29,877 INFO L402 AbstractCegarLoop]: === Iteration 221 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:04:29,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:04:29,878 INFO L85 PathProgramCache]: Analyzing trace with hash 99529828, now seen corresponding path program 221 times [2022-02-09 04:04:29,878 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:04:29,878 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802716352] [2022-02-09 04:04:29,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:04:29,878 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:04:29,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:04:30,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:04:30,089 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:04:30,089 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802716352] [2022-02-09 04:04:30,090 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802716352] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:04:30,090 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:04:30,090 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:04:30,090 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063554791] [2022-02-09 04:04:30,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:04:30,090 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:04:30,090 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:04:30,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:04:30,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:04:30,090 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) [2022-02-09 04:04:31,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:04:31,629 INFO L93 Difference]: Finished difference Result 5361 states and 18138 transitions. [2022-02-09 04:04:31,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-02-09 04:04:31,629 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:04:31,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:04:31,643 INFO L225 Difference]: With dead ends: 5361 [2022-02-09 04:04:31,643 INFO L226 Difference]: Without dead ends: 5294 [2022-02-09 04:04:31,644 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 908 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=346, Invalid=3314, Unknown=0, NotChecked=0, Total=3660 [2022-02-09 04:04:31,644 INFO L933 BasicCegarLoop]: 124 mSDtfsCounter, 281 mSDsluCounter, 1468 mSDsCounter, 0 mSdLazyCounter, 2102 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.7s IncrementalHoareTripleChecker+Time [2022-02-09 04:04:31,644 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [281 Valid, 1216 Invalid, 2167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 2102 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-09 04:04:31,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5294 states. [2022-02-09 04:04:31,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5294 to 4388. [2022-02-09 04:04:31,712 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) [2022-02-09 04:04:31,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4388 states to 4388 states and 14838 transitions. [2022-02-09 04:04:31,722 INFO L78 Accepts]: Start accepts. Automaton has 4388 states and 14838 transitions. Word has length 39 [2022-02-09 04:04:31,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:04:31,722 INFO L470 AbstractCegarLoop]: Abstraction has 4388 states and 14838 transitions. [2022-02-09 04:04:31,722 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:04:31,723 INFO L276 IsEmpty]: Start isEmpty. Operand 4388 states and 14838 transitions. [2022-02-09 04:04:31,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:04:31,729 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:04:31,729 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:04:31,729 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable220 [2022-02-09 04:04:31,730 INFO L402 AbstractCegarLoop]: === Iteration 222 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:04:31,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:04:31,730 INFO L85 PathProgramCache]: Analyzing trace with hash -31065020, now seen corresponding path program 222 times [2022-02-09 04:04:31,730 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:04:31,730 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812578154] [2022-02-09 04:04:31,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:04:31,730 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:04:31,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:04:31,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:04:31,942 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:04:31,942 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812578154] [2022-02-09 04:04:31,942 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812578154] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:04:31,942 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:04:31,942 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:04:31,943 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477755707] [2022-02-09 04:04:31,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:04:31,943 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:04:31,943 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:04:31,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:04:31,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:04:31,943 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) [2022-02-09 04:04:33,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:04:33,435 INFO L93 Difference]: Finished difference Result 5370 states and 18122 transitions. [2022-02-09 04:04:33,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-02-09 04:04:33,435 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:04:33,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:04:33,447 INFO L225 Difference]: With dead ends: 5370 [2022-02-09 04:04:33,447 INFO L226 Difference]: Without dead ends: 5307 [2022-02-09 04:04:33,448 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 951 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=352, Invalid=3430, Unknown=0, NotChecked=0, Total=3782 [2022-02-09 04:04:33,448 INFO L933 BasicCegarLoop]: 122 mSDtfsCounter, 298 mSDsluCounter, 1475 mSDsCounter, 0 mSdLazyCounter, 2039 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.7s IncrementalHoareTripleChecker+Time [2022-02-09 04:04:33,448 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [298 Valid, 1229 Invalid, 2104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 2039 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-09 04:04:33,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5307 states. [2022-02-09 04:04:33,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5307 to 4380. [2022-02-09 04:04:33,516 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) [2022-02-09 04:04:33,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4380 states to 4380 states and 14818 transitions. [2022-02-09 04:04:33,526 INFO L78 Accepts]: Start accepts. Automaton has 4380 states and 14818 transitions. Word has length 39 [2022-02-09 04:04:33,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:04:33,526 INFO L470 AbstractCegarLoop]: Abstraction has 4380 states and 14818 transitions. [2022-02-09 04:04:33,526 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:04:33,526 INFO L276 IsEmpty]: Start isEmpty. Operand 4380 states and 14818 transitions. [2022-02-09 04:04:33,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:04:33,533 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:04:33,533 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] [2022-02-09 04:04:33,533 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable221 [2022-02-09 04:04:33,533 INFO L402 AbstractCegarLoop]: === Iteration 223 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:04:33,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:04:33,533 INFO L85 PathProgramCache]: Analyzing trace with hash -166743612, now seen corresponding path program 223 times [2022-02-09 04:04:33,533 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:04:33,533 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713958784] [2022-02-09 04:04:33,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:04:33,534 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:04:33,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:04:33,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:04:33,785 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:04:33,785 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713958784] [2022-02-09 04:04:33,785 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713958784] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:04:33,785 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:04:33,785 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:04:33,785 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282223013] [2022-02-09 04:04:33,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:04:33,785 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:04:33,785 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:04:33,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:04:33,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:04:33,785 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) [2022-02-09 04:04:35,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:04:35,793 INFO L93 Difference]: Finished difference Result 5537 states and 18547 transitions. [2022-02-09 04:04:35,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2022-02-09 04:04:35,793 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:04:35,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:04:35,805 INFO L225 Difference]: With dead ends: 5537 [2022-02-09 04:04:35,805 INFO L226 Difference]: Without dead ends: 5494 [2022-02-09 04:04:35,806 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1694 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=519, Invalid=5333, Unknown=0, NotChecked=0, Total=5852 [2022-02-09 04:04:35,806 INFO L933 BasicCegarLoop]: 119 mSDtfsCounter, 361 mSDsluCounter, 1519 mSDsCounter, 0 mSdLazyCounter, 2309 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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 [2022-02-09 04:04:35,807 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] [2022-02-09 04:04:35,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5494 states. [2022-02-09 04:04:35,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5494 to 4388. [2022-02-09 04:04:35,875 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) [2022-02-09 04:04:35,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4388 states to 4388 states and 14838 transitions. [2022-02-09 04:04:35,884 INFO L78 Accepts]: Start accepts. Automaton has 4388 states and 14838 transitions. Word has length 39 [2022-02-09 04:04:35,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:04:35,884 INFO L470 AbstractCegarLoop]: Abstraction has 4388 states and 14838 transitions. [2022-02-09 04:04:35,884 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:04:35,884 INFO L276 IsEmpty]: Start isEmpty. Operand 4388 states and 14838 transitions. [2022-02-09 04:04:35,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:04:35,891 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:04:35,891 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:04:35,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable222 [2022-02-09 04:04:35,891 INFO L402 AbstractCegarLoop]: === Iteration 224 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:04:35,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:04:35,892 INFO L85 PathProgramCache]: Analyzing trace with hash -1947341914, now seen corresponding path program 224 times [2022-02-09 04:04:35,892 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:04:35,892 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324881864] [2022-02-09 04:04:35,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:04:35,892 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:04:35,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:04:36,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:04:36,110 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:04:36,110 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324881864] [2022-02-09 04:04:36,110 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324881864] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:04:36,110 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:04:36,110 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:04:36,110 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970193955] [2022-02-09 04:04:36,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:04:36,110 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:04:36,110 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:04:36,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:04:36,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:04:36,111 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) [2022-02-09 04:04:38,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:04:38,072 INFO L93 Difference]: Finished difference Result 5525 states and 18509 transitions. [2022-02-09 04:04:38,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-02-09 04:04:38,072 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 [2022-02-09 04:04:38,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:04:38,084 INFO L225 Difference]: With dead ends: 5525 [2022-02-09 04:04:38,084 INFO L226 Difference]: Without dead ends: 5473 [2022-02-09 04:04:38,085 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 [2022-02-09 04:04:38,085 INFO L933 BasicCegarLoop]: 117 mSDtfsCounter, 361 mSDsluCounter, 1491 mSDsCounter, 0 mSdLazyCounter, 2283 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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 [2022-02-09 04:04:38,085 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] [2022-02-09 04:04:38,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5473 states. [2022-02-09 04:04:38,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5473 to 4380. [2022-02-09 04:04:38,147 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) [2022-02-09 04:04:38,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4380 states to 4380 states and 14818 transitions. [2022-02-09 04:04:38,156 INFO L78 Accepts]: Start accepts. Automaton has 4380 states and 14818 transitions. Word has length 39 [2022-02-09 04:04:38,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:04:38,156 INFO L470 AbstractCegarLoop]: Abstraction has 4380 states and 14818 transitions. [2022-02-09 04:04:38,156 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:04:38,156 INFO L276 IsEmpty]: Start isEmpty. Operand 4380 states and 14818 transitions. [2022-02-09 04:04:38,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:04:38,162 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:04:38,162 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:04:38,162 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable223 [2022-02-09 04:04:38,162 INFO L402 AbstractCegarLoop]: === Iteration 225 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:04:38,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:04:38,162 INFO L85 PathProgramCache]: Analyzing trace with hash 751739958, now seen corresponding path program 225 times [2022-02-09 04:04:38,162 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:04:38,163 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824805117] [2022-02-09 04:04:38,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:04:38,163 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:04:38,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:04:38,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:04:38,389 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:04:38,389 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824805117] [2022-02-09 04:04:38,390 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824805117] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:04:38,390 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:04:38,390 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:04:38,390 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320355690] [2022-02-09 04:04:38,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:04:38,390 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:04:38,390 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:04:38,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:04:38,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:04:38,390 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) [2022-02-09 04:04:39,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:04:39,990 INFO L93 Difference]: Finished difference Result 5508 states and 18427 transitions. [2022-02-09 04:04:39,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-02-09 04:04:39,990 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:04:39,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:04:40,001 INFO L225 Difference]: With dead ends: 5508 [2022-02-09 04:04:40,001 INFO L226 Difference]: Without dead ends: 5453 [2022-02-09 04:04:40,002 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 [2022-02-09 04:04:40,002 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 [2022-02-09 04:04:40,002 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] [2022-02-09 04:04:40,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5453 states. [2022-02-09 04:04:40,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5453 to 4382. [2022-02-09 04:04:40,058 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) [2022-02-09 04:04:40,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4382 states to 4382 states and 14821 transitions. [2022-02-09 04:04:40,067 INFO L78 Accepts]: Start accepts. Automaton has 4382 states and 14821 transitions. Word has length 39 [2022-02-09 04:04:40,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:04:40,067 INFO L470 AbstractCegarLoop]: Abstraction has 4382 states and 14821 transitions. [2022-02-09 04:04:40,067 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:04:40,067 INFO L276 IsEmpty]: Start isEmpty. Operand 4382 states and 14821 transitions. [2022-02-09 04:04:40,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:04:40,073 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:04:40,073 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:04:40,073 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable224 [2022-02-09 04:04:40,073 INFO L402 AbstractCegarLoop]: === Iteration 226 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:04:40,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:04:40,073 INFO L85 PathProgramCache]: Analyzing trace with hash 1924392180, now seen corresponding path program 226 times [2022-02-09 04:04:40,073 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:04:40,073 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264511304] [2022-02-09 04:04:40,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:04:40,074 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:04:40,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:04:40,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:04:40,297 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:04:40,297 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264511304] [2022-02-09 04:04:40,297 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264511304] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:04:40,297 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:04:40,297 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:04:40,297 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80494401] [2022-02-09 04:04:40,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:04:40,297 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:04:40,297 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:04:40,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:04:40,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:04:40,297 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) [2022-02-09 04:04:41,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:04:41,823 INFO L93 Difference]: Finished difference Result 5421 states and 18236 transitions. [2022-02-09 04:04:41,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-02-09 04:04:41,824 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:04:41,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:04:41,835 INFO L225 Difference]: With dead ends: 5421 [2022-02-09 04:04:41,835 INFO L226 Difference]: Without dead ends: 5357 [2022-02-09 04:04:41,835 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1037 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=379, Invalid=3653, Unknown=0, NotChecked=0, Total=4032 [2022-02-09 04:04:41,835 INFO L933 BasicCegarLoop]: 123 mSDtfsCounter, 304 mSDsluCounter, 1532 mSDsCounter, 0 mSdLazyCounter, 2106 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.7s IncrementalHoareTripleChecker+Time [2022-02-09 04:04:41,835 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [304 Valid, 1257 Invalid, 2173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 2106 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-09 04:04:41,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5357 states. [2022-02-09 04:04:41,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5357 to 4376. [2022-02-09 04:04:41,916 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) [2022-02-09 04:04:41,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4376 states to 4376 states and 14808 transitions. [2022-02-09 04:04:41,926 INFO L78 Accepts]: Start accepts. Automaton has 4376 states and 14808 transitions. Word has length 39 [2022-02-09 04:04:41,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:04:41,926 INFO L470 AbstractCegarLoop]: Abstraction has 4376 states and 14808 transitions. [2022-02-09 04:04:41,926 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:04:41,926 INFO L276 IsEmpty]: Start isEmpty. Operand 4376 states and 14808 transitions. [2022-02-09 04:04:41,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:04:41,933 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:04:41,933 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:04:41,933 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable225 [2022-02-09 04:04:41,933 INFO L402 AbstractCegarLoop]: === Iteration 227 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:04:41,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:04:41,933 INFO L85 PathProgramCache]: Analyzing trace with hash -128526794, now seen corresponding path program 227 times [2022-02-09 04:04:41,934 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:04:41,934 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446148282] [2022-02-09 04:04:41,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:04:41,934 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:04:41,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:04:42,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:04:42,149 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:04:42,149 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446148282] [2022-02-09 04:04:42,149 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446148282] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:04:42,150 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:04:42,150 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:04:42,150 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701185813] [2022-02-09 04:04:42,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:04:42,150 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:04:42,150 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:04:42,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:04:42,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:04:42,150 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) [2022-02-09 04:04:44,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:04:44,273 INFO L93 Difference]: Finished difference Result 5610 states and 18811 transitions. [2022-02-09 04:04:44,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-02-09 04:04:44,273 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:04:44,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:04:44,285 INFO L225 Difference]: With dead ends: 5610 [2022-02-09 04:04:44,285 INFO L226 Difference]: Without dead ends: 5473 [2022-02-09 04:04:44,286 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1642 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=466, Invalid=5234, Unknown=0, NotChecked=0, Total=5700 [2022-02-09 04:04:44,286 INFO L933 BasicCegarLoop]: 150 mSDtfsCounter, 381 mSDsluCounter, 1813 mSDsCounter, 0 mSdLazyCounter, 2770 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s 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, 0.9s IncrementalHoareTripleChecker+Time [2022-02-09 04:04:44,286 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [381 Valid, 1517 Invalid, 2858 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 2770 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-09 04:04:44,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5473 states. [2022-02-09 04:04:44,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5473 to 4384. [2022-02-09 04:04:44,353 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) [2022-02-09 04:04:44,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4384 states to 4384 states and 14840 transitions. [2022-02-09 04:04:44,363 INFO L78 Accepts]: Start accepts. Automaton has 4384 states and 14840 transitions. Word has length 39 [2022-02-09 04:04:44,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:04:44,363 INFO L470 AbstractCegarLoop]: Abstraction has 4384 states and 14840 transitions. [2022-02-09 04:04:44,363 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:04:44,363 INFO L276 IsEmpty]: Start isEmpty. Operand 4384 states and 14840 transitions. [2022-02-09 04:04:44,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:04:44,383 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:04:44,383 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:04:44,383 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable226 [2022-02-09 04:04:44,383 INFO L402 AbstractCegarLoop]: === Iteration 228 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:04:44,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:04:44,384 INFO L85 PathProgramCache]: Analyzing trace with hash -1623417694, now seen corresponding path program 228 times [2022-02-09 04:04:44,384 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:04:44,384 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311851858] [2022-02-09 04:04:44,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:04:44,384 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:04:44,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:04:44,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:04:44,597 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:04:44,597 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311851858] [2022-02-09 04:04:44,597 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311851858] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:04:44,597 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:04:44,597 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:04:44,597 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557214994] [2022-02-09 04:04:44,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:04:44,597 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:04:44,597 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:04:44,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:04:44,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:04:44,598 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) [2022-02-09 04:04:46,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:04:46,521 INFO L93 Difference]: Finished difference Result 5569 states and 18627 transitions. [2022-02-09 04:04:46,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-02-09 04:04:46,521 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:04:46,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:04:46,533 INFO L225 Difference]: With dead ends: 5569 [2022-02-09 04:04:46,533 INFO L226 Difference]: Without dead ends: 5505 [2022-02-09 04:04:46,534 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1581 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=485, Invalid=5065, Unknown=0, NotChecked=0, Total=5550 [2022-02-09 04:04:46,534 INFO L933 BasicCegarLoop]: 117 mSDtfsCounter, 364 mSDsluCounter, 1514 mSDsCounter, 0 mSdLazyCounter, 2340 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.8s IncrementalHoareTripleChecker+Time [2022-02-09 04:04:46,534 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [364 Valid, 1230 Invalid, 2424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 2340 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-09 04:04:46,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5505 states. [2022-02-09 04:04:46,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5505 to 4388. [2022-02-09 04:04:46,600 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) [2022-02-09 04:04:46,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4388 states to 4388 states and 14850 transitions. [2022-02-09 04:04:46,609 INFO L78 Accepts]: Start accepts. Automaton has 4388 states and 14850 transitions. Word has length 39 [2022-02-09 04:04:46,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:04:46,609 INFO L470 AbstractCegarLoop]: Abstraction has 4388 states and 14850 transitions. [2022-02-09 04:04:46,609 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) [2022-02-09 04:04:46,609 INFO L276 IsEmpty]: Start isEmpty. Operand 4388 states and 14850 transitions. [2022-02-09 04:04:46,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:04:46,616 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:04:46,616 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] [2022-02-09 04:04:46,616 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable227 [2022-02-09 04:04:46,616 INFO L402 AbstractCegarLoop]: === Iteration 229 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:04:46,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:04:46,616 INFO L85 PathProgramCache]: Analyzing trace with hash -704934124, now seen corresponding path program 229 times [2022-02-09 04:04:46,617 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:04:46,617 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428880026] [2022-02-09 04:04:46,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:04:46,617 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:04:46,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:04:46,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:04:46,832 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:04:46,832 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428880026] [2022-02-09 04:04:46,833 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428880026] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:04:46,833 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:04:46,833 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:04:46,833 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971782087] [2022-02-09 04:04:46,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:04:46,833 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:04:46,833 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:04:46,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:04:46,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:04:46,833 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) [2022-02-09 04:04:48,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:04:48,346 INFO L93 Difference]: Finished difference Result 5495 states and 18413 transitions. [2022-02-09 04:04:48,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-02-09 04:04:48,346 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 [2022-02-09 04:04:48,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:04:48,357 INFO L225 Difference]: With dead ends: 5495 [2022-02-09 04:04:48,357 INFO L226 Difference]: Without dead ends: 5440 [2022-02-09 04:04:48,357 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 993 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=351, Invalid=3555, Unknown=0, NotChecked=0, Total=3906 [2022-02-09 04:04:48,357 INFO L933 BasicCegarLoop]: 123 mSDtfsCounter, 323 mSDsluCounter, 1574 mSDsCounter, 0 mSdLazyCounter, 2196 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.7s IncrementalHoareTripleChecker+Time [2022-02-09 04:04:48,357 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [323 Valid, 1248 Invalid, 2259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 2196 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-09 04:04:48,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5440 states. [2022-02-09 04:04:48,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5440 to 4390. [2022-02-09 04:04:48,413 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) [2022-02-09 04:04:48,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4390 states to 4390 states and 14853 transitions. [2022-02-09 04:04:48,422 INFO L78 Accepts]: Start accepts. Automaton has 4390 states and 14853 transitions. Word has length 39 [2022-02-09 04:04:48,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:04:48,422 INFO L470 AbstractCegarLoop]: Abstraction has 4390 states and 14853 transitions. [2022-02-09 04:04:48,422 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) [2022-02-09 04:04:48,422 INFO L276 IsEmpty]: Start isEmpty. Operand 4390 states and 14853 transitions. [2022-02-09 04:04:48,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:04:48,428 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:04:48,428 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] [2022-02-09 04:04:48,428 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable228 [2022-02-09 04:04:48,428 INFO L402 AbstractCegarLoop]: === Iteration 230 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:04:48,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:04:48,428 INFO L85 PathProgramCache]: Analyzing trace with hash 467718098, now seen corresponding path program 230 times [2022-02-09 04:04:48,429 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:04:48,429 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41414016] [2022-02-09 04:04:48,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:04:48,429 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:04:48,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:04:48,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:04:48,635 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:04:48,635 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41414016] [2022-02-09 04:04:48,635 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41414016] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:04:48,635 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:04:48,635 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:04:48,635 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176435230] [2022-02-09 04:04:48,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:04:48,635 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:04:48,635 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:04:48,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:04:48,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:04:48,635 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) [2022-02-09 04:04:50,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:04:50,179 INFO L93 Difference]: Finished difference Result 5513 states and 18457 transitions. [2022-02-09 04:04:50,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-02-09 04:04:50,179 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:04:50,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:04:50,189 INFO L225 Difference]: With dead ends: 5513 [2022-02-09 04:04:50,189 INFO L226 Difference]: Without dead ends: 5453 [2022-02-09 04:04:50,190 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1044 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=362, Invalid=3670, Unknown=0, NotChecked=0, Total=4032 [2022-02-09 04:04:50,190 INFO L933 BasicCegarLoop]: 119 mSDtfsCounter, 346 mSDsluCounter, 1501 mSDsCounter, 0 mSdLazyCounter, 2133 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.7s IncrementalHoareTripleChecker+Time [2022-02-09 04:04:50,190 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [346 Valid, 1208 Invalid, 2199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 2133 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-09 04:04:50,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5453 states. [2022-02-09 04:04:50,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5453 to 4388. [2022-02-09 04:04:50,242 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) [2022-02-09 04:04:50,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4388 states to 4388 states and 14848 transitions. [2022-02-09 04:04:50,250 INFO L78 Accepts]: Start accepts. Automaton has 4388 states and 14848 transitions. Word has length 39 [2022-02-09 04:04:50,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:04:50,251 INFO L470 AbstractCegarLoop]: Abstraction has 4388 states and 14848 transitions. [2022-02-09 04:04:50,251 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:04:50,251 INFO L276 IsEmpty]: Start isEmpty. Operand 4388 states and 14848 transitions. [2022-02-09 04:04:50,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:04:50,256 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:04:50,257 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:04:50,257 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable229 [2022-02-09 04:04:50,257 INFO L402 AbstractCegarLoop]: === Iteration 231 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:04:50,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:04:50,257 INFO L85 PathProgramCache]: Analyzing trace with hash -1611848444, now seen corresponding path program 231 times [2022-02-09 04:04:50,257 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:04:50,257 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921130206] [2022-02-09 04:04:50,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:04:50,257 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:04:50,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:04:50,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:04:50,456 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:04:50,456 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921130206] [2022-02-09 04:04:50,456 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921130206] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:04:50,456 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:04:50,456 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:04:50,456 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128836097] [2022-02-09 04:04:50,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:04:50,456 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:04:50,456 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:04:50,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:04:50,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:04:50,457 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) [2022-02-09 04:04:51,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:04:51,818 INFO L93 Difference]: Finished difference Result 5370 states and 18139 transitions. [2022-02-09 04:04:51,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-02-09 04:04:51,818 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 [2022-02-09 04:04:51,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:04:51,828 INFO L225 Difference]: With dead ends: 5370 [2022-02-09 04:04:51,829 INFO L226 Difference]: Without dead ends: 5294 [2022-02-09 04:04:51,829 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 826 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=312, Invalid=2994, Unknown=0, NotChecked=0, Total=3306 [2022-02-09 04:04:51,829 INFO L933 BasicCegarLoop]: 118 mSDtfsCounter, 288 mSDsluCounter, 1317 mSDsCounter, 0 mSdLazyCounter, 1912 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 04:04:51,829 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [288 Valid, 1078 Invalid, 1972 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 1912 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 04:04:51,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5294 states. [2022-02-09 04:04:51,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5294 to 4396. [2022-02-09 04:04:51,885 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) [2022-02-09 04:04:51,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4396 states to 4396 states and 14864 transitions. [2022-02-09 04:04:51,893 INFO L78 Accepts]: Start accepts. Automaton has 4396 states and 14864 transitions. Word has length 39 [2022-02-09 04:04:51,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:04:51,893 INFO L470 AbstractCegarLoop]: Abstraction has 4396 states and 14864 transitions. [2022-02-09 04:04:51,893 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) [2022-02-09 04:04:51,893 INFO L276 IsEmpty]: Start isEmpty. Operand 4396 states and 14864 transitions. [2022-02-09 04:04:51,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:04:51,899 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:04:51,899 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:04:51,899 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable230 [2022-02-09 04:04:51,899 INFO L402 AbstractCegarLoop]: === Iteration 232 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:04:51,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:04:51,900 INFO L85 PathProgramCache]: Analyzing trace with hash 1665065240, now seen corresponding path program 232 times [2022-02-09 04:04:51,900 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:04:51,900 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348533558] [2022-02-09 04:04:51,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:04:51,900 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:04:51,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:04:52,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:04:52,135 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:04:52,135 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348533558] [2022-02-09 04:04:52,135 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348533558] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:04:52,135 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:04:52,136 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:04:52,136 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583275433] [2022-02-09 04:04:52,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:04:52,136 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:04:52,136 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:04:52,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:04:52,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:04:52,136 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) [2022-02-09 04:04:53,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:04:53,589 INFO L93 Difference]: Finished difference Result 5400 states and 18190 transitions. [2022-02-09 04:04:53,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-02-09 04:04:53,589 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 [2022-02-09 04:04:53,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:04:53,600 INFO L225 Difference]: With dead ends: 5400 [2022-02-09 04:04:53,601 INFO L226 Difference]: Without dead ends: 5322 [2022-02-09 04:04:53,601 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 909 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=328, Invalid=3332, Unknown=0, NotChecked=0, Total=3660 [2022-02-09 04:04:53,601 INFO L933 BasicCegarLoop]: 120 mSDtfsCounter, 319 mSDsluCounter, 1492 mSDsCounter, 0 mSdLazyCounter, 2075 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.7s IncrementalHoareTripleChecker+Time [2022-02-09 04:04:53,601 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [319 Valid, 1211 Invalid, 2139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 2075 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-09 04:04:53,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5322 states. [2022-02-09 04:04:53,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5322 to 4376. [2022-02-09 04:04:53,666 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) [2022-02-09 04:04:53,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4376 states to 4376 states and 14812 transitions. [2022-02-09 04:04:53,675 INFO L78 Accepts]: Start accepts. Automaton has 4376 states and 14812 transitions. Word has length 39 [2022-02-09 04:04:53,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:04:53,675 INFO L470 AbstractCegarLoop]: Abstraction has 4376 states and 14812 transitions. [2022-02-09 04:04:53,675 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) [2022-02-09 04:04:53,675 INFO L276 IsEmpty]: Start isEmpty. Operand 4376 states and 14812 transitions. [2022-02-09 04:04:53,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:04:53,682 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:04:53,682 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] [2022-02-09 04:04:53,682 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable231 [2022-02-09 04:04:53,682 INFO L402 AbstractCegarLoop]: === Iteration 233 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:04:53,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:04:53,682 INFO L85 PathProgramCache]: Analyzing trace with hash 637928698, now seen corresponding path program 233 times [2022-02-09 04:04:53,683 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:04:53,683 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337235028] [2022-02-09 04:04:53,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:04:53,683 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:04:53,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:04:53,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:04:53,886 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:04:53,886 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337235028] [2022-02-09 04:04:53,887 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337235028] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:04:53,887 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:04:53,887 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:04:53,887 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654298555] [2022-02-09 04:04:53,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:04:53,887 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:04:53,887 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:04:53,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:04:53,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:04:53,887 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) [2022-02-09 04:04:55,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:04:55,357 INFO L93 Difference]: Finished difference Result 5319 states and 18031 transitions. [2022-02-09 04:04:55,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-02-09 04:04:55,357 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 [2022-02-09 04:04:55,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:04:55,368 INFO L225 Difference]: With dead ends: 5319 [2022-02-09 04:04:55,368 INFO L226 Difference]: Without dead ends: 5252 [2022-02-09 04:04:55,368 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 [2022-02-09 04:04:55,368 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 [2022-02-09 04:04:55,368 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] [2022-02-09 04:04:55,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5252 states. [2022-02-09 04:04:55,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5252 to 4424. [2022-02-09 04:04:55,422 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) [2022-02-09 04:04:55,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4424 states to 4424 states and 14958 transitions. [2022-02-09 04:04:55,430 INFO L78 Accepts]: Start accepts. Automaton has 4424 states and 14958 transitions. Word has length 39 [2022-02-09 04:04:55,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:04:55,430 INFO L470 AbstractCegarLoop]: Abstraction has 4424 states and 14958 transitions. [2022-02-09 04:04:55,430 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) [2022-02-09 04:04:55,430 INFO L276 IsEmpty]: Start isEmpty. Operand 4424 states and 14958 transitions. [2022-02-09 04:04:55,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:04:55,436 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:04:55,436 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] [2022-02-09 04:04:55,436 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable232 [2022-02-09 04:04:55,436 INFO L402 AbstractCegarLoop]: === Iteration 234 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:04:55,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:04:55,436 INFO L85 PathProgramCache]: Analyzing trace with hash -1081687272, now seen corresponding path program 234 times [2022-02-09 04:04:55,437 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:04:55,437 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441914704] [2022-02-09 04:04:55,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:04:55,437 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:04:55,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:04:55,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:04:55,636 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:04:55,636 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441914704] [2022-02-09 04:04:55,636 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441914704] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:04:55,636 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:04:55,636 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:04:55,636 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186839596] [2022-02-09 04:04:55,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:04:55,636 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:04:55,636 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:04:55,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:04:55,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:04:55,636 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) [2022-02-09 04:04:57,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:04:57,563 INFO L93 Difference]: Finished difference Result 5415 states and 18292 transitions. [2022-02-09 04:04:57,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-02-09 04:04:57,564 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 [2022-02-09 04:04:57,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:04:57,594 INFO L225 Difference]: With dead ends: 5415 [2022-02-09 04:04:57,594 INFO L226 Difference]: Without dead ends: 5372 [2022-02-09 04:04:57,594 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1530 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=459, Invalid=4797, Unknown=0, NotChecked=0, Total=5256 [2022-02-09 04:04:57,595 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 [2022-02-09 04:04:57,595 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] [2022-02-09 04:04:57,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5372 states. [2022-02-09 04:04:57,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5372 to 4430. [2022-02-09 04:04:57,643 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) [2022-02-09 04:04:57,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4430 states to 4430 states and 14971 transitions. [2022-02-09 04:04:57,651 INFO L78 Accepts]: Start accepts. Automaton has 4430 states and 14971 transitions. Word has length 39 [2022-02-09 04:04:57,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:04:57,651 INFO L470 AbstractCegarLoop]: Abstraction has 4430 states and 14971 transitions. [2022-02-09 04:04:57,651 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) [2022-02-09 04:04:57,651 INFO L276 IsEmpty]: Start isEmpty. Operand 4430 states and 14971 transitions. [2022-02-09 04:04:57,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:04:57,657 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:04:57,657 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] [2022-02-09 04:04:57,657 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable233 [2022-02-09 04:04:57,657 INFO L402 AbstractCegarLoop]: === Iteration 235 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:04:57,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:04:57,657 INFO L85 PathProgramCache]: Analyzing trace with hash 1432681722, now seen corresponding path program 235 times [2022-02-09 04:04:57,658 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:04:57,658 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874752449] [2022-02-09 04:04:57,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:04:57,658 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:04:57,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:04:57,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:04:57,852 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:04:57,852 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874752449] [2022-02-09 04:04:57,852 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874752449] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:04:57,852 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:04:57,852 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:04:57,852 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10944465] [2022-02-09 04:04:57,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:04:57,852 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:04:57,852 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:04:57,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:04:57,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:04:57,853 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) [2022-02-09 04:04:59,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:04:59,752 INFO L93 Difference]: Finished difference Result 5346 states and 18112 transitions. [2022-02-09 04:04:59,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-02-09 04:04:59,752 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 [2022-02-09 04:04:59,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:04:59,764 INFO L225 Difference]: With dead ends: 5346 [2022-02-09 04:04:59,764 INFO L226 Difference]: Without dead ends: 5282 [2022-02-09 04:04:59,765 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1473 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=452, Invalid=4660, Unknown=0, NotChecked=0, Total=5112 [2022-02-09 04:04:59,765 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 317 mSDsluCounter, 1437 mSDsCounter, 0 mSdLazyCounter, 2351 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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 [2022-02-09 04:04:59,765 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] [2022-02-09 04:04:59,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5282 states. [2022-02-09 04:04:59,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5282 to 4412. [2022-02-09 04:04:59,830 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) [2022-02-09 04:04:59,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4412 states to 4412 states and 14920 transitions. [2022-02-09 04:04:59,871 INFO L78 Accepts]: Start accepts. Automaton has 4412 states and 14920 transitions. Word has length 39 [2022-02-09 04:04:59,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:04:59,871 INFO L470 AbstractCegarLoop]: Abstraction has 4412 states and 14920 transitions. [2022-02-09 04:04:59,871 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) [2022-02-09 04:04:59,871 INFO L276 IsEmpty]: Start isEmpty. Operand 4412 states and 14920 transitions. [2022-02-09 04:04:59,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:04:59,878 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:04:59,878 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:04:59,878 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable234 [2022-02-09 04:04:59,878 INFO L402 AbstractCegarLoop]: === Iteration 236 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:04:59,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:04:59,878 INFO L85 PathProgramCache]: Analyzing trace with hash 1023866106, now seen corresponding path program 236 times [2022-02-09 04:04:59,878 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:04:59,878 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735304960] [2022-02-09 04:04:59,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:04:59,878 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:04:59,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:05:00,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:05:00,078 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:05:00,078 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735304960] [2022-02-09 04:05:00,078 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735304960] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:05:00,078 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:05:00,078 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:05:00,078 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798018982] [2022-02-09 04:05:00,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:05:00,079 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:05:00,079 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:05:00,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:05:00,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:05:00,079 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) [2022-02-09 04:05:01,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:05:01,916 INFO L93 Difference]: Finished difference Result 5367 states and 18159 transitions. [2022-02-09 04:05:01,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-02-09 04:05:01,916 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 [2022-02-09 04:05:01,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:05:01,928 INFO L225 Difference]: With dead ends: 5367 [2022-02-09 04:05:01,928 INFO L226 Difference]: Without dead ends: 5237 [2022-02-09 04:05:01,929 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1218 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=387, Invalid=4035, Unknown=0, NotChecked=0, Total=4422 [2022-02-09 04:05:01,929 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, 0.8s IncrementalHoareTripleChecker+Time [2022-02-09 04:05:01,929 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [305 Valid, 1319 Invalid, 2574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 2504 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-09 04:05:01,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5237 states. [2022-02-09 04:05:01,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5237 to 4388. [2022-02-09 04:05:01,992 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) [2022-02-09 04:05:02,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4388 states to 4388 states and 14844 transitions. [2022-02-09 04:05:02,001 INFO L78 Accepts]: Start accepts. Automaton has 4388 states and 14844 transitions. Word has length 39 [2022-02-09 04:05:02,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:05:02,002 INFO L470 AbstractCegarLoop]: Abstraction has 4388 states and 14844 transitions. [2022-02-09 04:05:02,002 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) [2022-02-09 04:05:02,002 INFO L276 IsEmpty]: Start isEmpty. Operand 4388 states and 14844 transitions. [2022-02-09 04:05:02,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:05:02,008 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:05:02,008 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] [2022-02-09 04:05:02,008 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable235 [2022-02-09 04:05:02,009 INFO L402 AbstractCegarLoop]: === Iteration 237 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:05:02,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:05:02,009 INFO L85 PathProgramCache]: Analyzing trace with hash 362721816, now seen corresponding path program 237 times [2022-02-09 04:05:02,009 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:05:02,009 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087574867] [2022-02-09 04:05:02,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:05:02,009 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:05:02,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:05:02,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:05:02,220 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:05:02,220 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087574867] [2022-02-09 04:05:02,221 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087574867] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:05:02,221 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:05:02,221 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:05:02,221 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464395524] [2022-02-09 04:05:02,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:05:02,221 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:05:02,221 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:05:02,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:05:02,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:05:02,221 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) [2022-02-09 04:05:03,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:05:03,883 INFO L93 Difference]: Finished difference Result 5412 states and 18282 transitions. [2022-02-09 04:05:03,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-02-09 04:05:03,883 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:05:03,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:05:03,894 INFO L225 Difference]: With dead ends: 5412 [2022-02-09 04:05:03,894 INFO L226 Difference]: Without dead ends: 5345 [2022-02-09 04:05:03,894 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1133 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=375, Invalid=3915, Unknown=0, NotChecked=0, Total=4290 [2022-02-09 04:05:03,895 INFO L933 BasicCegarLoop]: 143 mSDtfsCounter, 296 mSDsluCounter, 1583 mSDsCounter, 0 mSdLazyCounter, 2355 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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 [2022-02-09 04:05:03,895 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] [2022-02-09 04:05:03,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5345 states. [2022-02-09 04:05:03,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5345 to 4406. [2022-02-09 04:05:03,950 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) [2022-02-09 04:05:03,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4406 states to 4406 states and 14892 transitions. [2022-02-09 04:05:03,958 INFO L78 Accepts]: Start accepts. Automaton has 4406 states and 14892 transitions. Word has length 39 [2022-02-09 04:05:03,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:05:03,958 INFO L470 AbstractCegarLoop]: Abstraction has 4406 states and 14892 transitions. [2022-02-09 04:05:03,959 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:05:03,959 INFO L276 IsEmpty]: Start isEmpty. Operand 4406 states and 14892 transitions. [2022-02-09 04:05:03,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:05:03,964 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:05:03,964 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] [2022-02-09 04:05:03,965 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable236 [2022-02-09 04:05:03,965 INFO L402 AbstractCegarLoop]: === Iteration 238 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:05:03,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:05:03,965 INFO L85 PathProgramCache]: Analyzing trace with hash -1356894154, now seen corresponding path program 238 times [2022-02-09 04:05:03,965 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:05:03,965 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509233901] [2022-02-09 04:05:03,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:05:03,965 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:05:03,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:05:04,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:05:04,183 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:05:04,183 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509233901] [2022-02-09 04:05:04,183 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509233901] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:05:04,183 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:05:04,183 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:05:04,183 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337884288] [2022-02-09 04:05:04,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:05:04,183 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:05:04,183 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:05:04,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:05:04,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:05:04,184 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) [2022-02-09 04:05:06,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:05:06,329 INFO L93 Difference]: Finished difference Result 5541 states and 18609 transitions. [2022-02-09 04:05:06,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2022-02-09 04:05:06,330 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:05:06,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:05:06,340 INFO L225 Difference]: With dead ends: 5541 [2022-02-09 04:05:06,340 INFO L226 Difference]: Without dead ends: 5498 [2022-02-09 04:05:06,341 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1874 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=517, Invalid=5803, Unknown=0, NotChecked=0, Total=6320 [2022-02-09 04:05:06,341 INFO L933 BasicCegarLoop]: 140 mSDtfsCounter, 362 mSDsluCounter, 1690 mSDsCounter, 0 mSdLazyCounter, 2650 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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, 0.9s IncrementalHoareTripleChecker+Time [2022-02-09 04:05:06,341 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [362 Valid, 1457 Invalid, 2741 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 2650 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-09 04:05:06,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5498 states. [2022-02-09 04:05:06,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5498 to 4412. [2022-02-09 04:05:06,397 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) [2022-02-09 04:05:06,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4412 states to 4412 states and 14905 transitions. [2022-02-09 04:05:06,406 INFO L78 Accepts]: Start accepts. Automaton has 4412 states and 14905 transitions. Word has length 39 [2022-02-09 04:05:06,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:05:06,406 INFO L470 AbstractCegarLoop]: Abstraction has 4412 states and 14905 transitions. [2022-02-09 04:05:06,406 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:05:06,406 INFO L276 IsEmpty]: Start isEmpty. Operand 4412 states and 14905 transitions. [2022-02-09 04:05:06,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:05:06,412 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:05:06,412 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:05:06,412 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable237 [2022-02-09 04:05:06,412 INFO L402 AbstractCegarLoop]: === Iteration 239 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:05:06,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:05:06,413 INFO L85 PathProgramCache]: Analyzing trace with hash 1157474840, now seen corresponding path program 239 times [2022-02-09 04:05:06,413 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:05:06,413 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613504226] [2022-02-09 04:05:06,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:05:06,413 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:05:06,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:05:06,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:05:06,625 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:05:06,625 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613504226] [2022-02-09 04:05:06,625 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613504226] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:05:06,625 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:05:06,625 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:05:06,626 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338224432] [2022-02-09 04:05:06,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:05:06,626 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:05:06,626 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:05:06,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:05:06,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:05:06,626 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) [2022-02-09 04:05:08,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:05:08,724 INFO L93 Difference]: Finished difference Result 5472 states and 18429 transitions. [2022-02-09 04:05:08,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2022-02-09 04:05:08,724 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 [2022-02-09 04:05:08,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:05:08,736 INFO L225 Difference]: With dead ends: 5472 [2022-02-09 04:05:08,736 INFO L226 Difference]: Without dead ends: 5408 [2022-02-09 04:05:08,737 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1694 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=491, Invalid=5361, Unknown=0, NotChecked=0, Total=5852 [2022-02-09 04:05:08,737 INFO L933 BasicCegarLoop]: 133 mSDtfsCounter, 344 mSDsluCounter, 1627 mSDsCounter, 0 mSdLazyCounter, 2570 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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, 0.8s IncrementalHoareTripleChecker+Time [2022-02-09 04:05:08,737 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [344 Valid, 1399 Invalid, 2658 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 2570 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-09 04:05:08,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5408 states. [2022-02-09 04:05:08,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5408 to 4394. [2022-02-09 04:05:08,804 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) [2022-02-09 04:05:08,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4394 states to 4394 states and 14860 transitions. [2022-02-09 04:05:08,813 INFO L78 Accepts]: Start accepts. Automaton has 4394 states and 14860 transitions. Word has length 39 [2022-02-09 04:05:08,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:05:08,814 INFO L470 AbstractCegarLoop]: Abstraction has 4394 states and 14860 transitions. [2022-02-09 04:05:08,814 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) [2022-02-09 04:05:08,814 INFO L276 IsEmpty]: Start isEmpty. Operand 4394 states and 14860 transitions. [2022-02-09 04:05:08,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:05:08,821 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:05:08,821 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] [2022-02-09 04:05:08,821 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable238 [2022-02-09 04:05:08,821 INFO L402 AbstractCegarLoop]: === Iteration 240 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:05:08,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:05:08,821 INFO L85 PathProgramCache]: Analyzing trace with hash 1669265880, now seen corresponding path program 240 times [2022-02-09 04:05:08,821 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:05:08,821 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44826404] [2022-02-09 04:05:08,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:05:08,821 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:05:08,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:05:09,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:05:09,035 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:05:09,035 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44826404] [2022-02-09 04:05:09,035 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44826404] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:05:09,035 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:05:09,035 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:05:09,035 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396244016] [2022-02-09 04:05:09,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:05:09,035 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:05:09,035 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:05:09,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:05:09,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:05:09,036 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) [2022-02-09 04:05:10,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:05:10,487 INFO L93 Difference]: Finished difference Result 5314 states and 17970 transitions. [2022-02-09 04:05:10,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-02-09 04:05:10,487 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:05:10,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:05:10,499 INFO L225 Difference]: With dead ends: 5314 [2022-02-09 04:05:10,499 INFO L226 Difference]: Without dead ends: 5247 [2022-02-09 04:05:10,499 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 787 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=296, Invalid=3010, Unknown=0, NotChecked=0, Total=3306 [2022-02-09 04:05:10,499 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 262 mSDsluCounter, 1465 mSDsCounter, 0 mSdLazyCounter, 2204 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.7s IncrementalHoareTripleChecker+Time [2022-02-09 04:05:10,500 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [262 Valid, 1218 Invalid, 2261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 2204 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-09 04:05:10,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5247 states. [2022-02-09 04:05:10,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5247 to 4412. [2022-02-09 04:05:10,580 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) [2022-02-09 04:05:10,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4412 states to 4412 states and 14902 transitions. [2022-02-09 04:05:10,590 INFO L78 Accepts]: Start accepts. Automaton has 4412 states and 14902 transitions. Word has length 39 [2022-02-09 04:05:10,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:05:10,590 INFO L470 AbstractCegarLoop]: Abstraction has 4412 states and 14902 transitions. [2022-02-09 04:05:10,590 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:05:10,590 INFO L276 IsEmpty]: Start isEmpty. Operand 4412 states and 14902 transitions. [2022-02-09 04:05:10,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:05:10,597 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:05:10,597 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:05:10,597 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable239 [2022-02-09 04:05:10,597 INFO L402 AbstractCegarLoop]: === Iteration 241 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:05:10,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:05:10,597 INFO L85 PathProgramCache]: Analyzing trace with hash 2027336088, now seen corresponding path program 241 times [2022-02-09 04:05:10,597 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:05:10,597 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410043834] [2022-02-09 04:05:10,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:05:10,598 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:05:10,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:05:10,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:05:10,825 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:05:10,825 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410043834] [2022-02-09 04:05:10,825 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410043834] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:05:10,825 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:05:10,825 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:05:10,826 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405618112] [2022-02-09 04:05:10,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:05:10,826 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:05:10,826 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:05:10,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:05:10,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:05:10,826 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) [2022-02-09 04:05:12,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:05:12,226 INFO L93 Difference]: Finished difference Result 5331 states and 17974 transitions. [2022-02-09 04:05:12,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-02-09 04:05:12,227 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:05:12,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:05:12,237 INFO L225 Difference]: With dead ends: 5331 [2022-02-09 04:05:12,237 INFO L226 Difference]: Without dead ends: 5256 [2022-02-09 04:05:12,238 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 [2022-02-09 04:05:12,238 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 [2022-02-09 04:05:12,238 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] [2022-02-09 04:05:12,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5256 states. [2022-02-09 04:05:12,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5256 to 4400. [2022-02-09 04:05:12,295 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) [2022-02-09 04:05:12,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4400 states to 4400 states and 14870 transitions. [2022-02-09 04:05:12,304 INFO L78 Accepts]: Start accepts. Automaton has 4400 states and 14870 transitions. Word has length 39 [2022-02-09 04:05:12,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:05:12,304 INFO L470 AbstractCegarLoop]: Abstraction has 4400 states and 14870 transitions. [2022-02-09 04:05:12,304 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:05:12,304 INFO L276 IsEmpty]: Start isEmpty. Operand 4400 states and 14870 transitions. [2022-02-09 04:05:12,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:05:12,310 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:05:12,310 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] [2022-02-09 04:05:12,310 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable240 [2022-02-09 04:05:12,310 INFO L402 AbstractCegarLoop]: === Iteration 242 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:05:12,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:05:12,311 INFO L85 PathProgramCache]: Analyzing trace with hash -639326154, now seen corresponding path program 242 times [2022-02-09 04:05:12,311 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:05:12,311 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163652438] [2022-02-09 04:05:12,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:05:12,311 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:05:12,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:05:12,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:05:12,523 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:05:12,523 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163652438] [2022-02-09 04:05:12,523 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163652438] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:05:12,523 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:05:12,523 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:05:12,523 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285281638] [2022-02-09 04:05:12,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:05:12,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:05:12,524 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:05:12,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:05:12,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:05:12,524 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) [2022-02-09 04:05:14,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:05:14,407 INFO L93 Difference]: Finished difference Result 5490 states and 18381 transitions. [2022-02-09 04:05:14,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-02-09 04:05:14,407 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 [2022-02-09 04:05:14,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:05:14,419 INFO L225 Difference]: With dead ends: 5490 [2022-02-09 04:05:14,419 INFO L226 Difference]: Without dead ends: 5447 [2022-02-09 04:05:14,420 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1479 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=440, Invalid=4816, Unknown=0, NotChecked=0, Total=5256 [2022-02-09 04:05:14,420 INFO L933 BasicCegarLoop]: 124 mSDtfsCounter, 354 mSDsluCounter, 1544 mSDsCounter, 0 mSdLazyCounter, 2406 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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 [2022-02-09 04:05:14,420 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] [2022-02-09 04:05:14,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5447 states. [2022-02-09 04:05:14,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5447 to 4409. [2022-02-09 04:05:14,489 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) [2022-02-09 04:05:14,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4409 states to 4409 states and 14894 transitions. [2022-02-09 04:05:14,499 INFO L78 Accepts]: Start accepts. Automaton has 4409 states and 14894 transitions. Word has length 39 [2022-02-09 04:05:14,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:05:14,499 INFO L470 AbstractCegarLoop]: Abstraction has 4409 states and 14894 transitions. [2022-02-09 04:05:14,500 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:05:14,500 INFO L276 IsEmpty]: Start isEmpty. Operand 4409 states and 14894 transitions. [2022-02-09 04:05:14,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:05:14,506 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:05:14,507 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:05:14,507 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable241 [2022-02-09 04:05:14,507 INFO L402 AbstractCegarLoop]: === Iteration 243 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:05:14,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:05:14,507 INFO L85 PathProgramCache]: Analyzing trace with hash 1875042840, now seen corresponding path program 243 times [2022-02-09 04:05:14,507 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:05:14,507 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161679200] [2022-02-09 04:05:14,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:05:14,507 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:05:14,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:05:14,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:05:14,721 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:05:14,721 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161679200] [2022-02-09 04:05:14,721 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161679200] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:05:14,721 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:05:14,722 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:05:14,722 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552728049] [2022-02-09 04:05:14,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:05:14,722 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:05:14,722 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:05:14,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:05:14,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:05:14,722 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) [2022-02-09 04:05:16,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:05:16,593 INFO L93 Difference]: Finished difference Result 5478 states and 18343 transitions. [2022-02-09 04:05:16,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-02-09 04:05:16,593 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:05:16,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:05:16,605 INFO L225 Difference]: With dead ends: 5478 [2022-02-09 04:05:16,605 INFO L226 Difference]: Without dead ends: 5426 [2022-02-09 04:05:16,606 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1425 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=432, Invalid=4680, Unknown=0, NotChecked=0, Total=5112 [2022-02-09 04:05:16,606 INFO L933 BasicCegarLoop]: 122 mSDtfsCounter, 354 mSDsluCounter, 1516 mSDsCounter, 0 mSdLazyCounter, 2380 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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, 0.8s IncrementalHoareTripleChecker+Time [2022-02-09 04:05:16,606 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [354 Valid, 1248 Invalid, 2458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 2380 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-09 04:05:16,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5426 states. [2022-02-09 04:05:16,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5426 to 4403. [2022-02-09 04:05:16,673 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) [2022-02-09 04:05:16,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4403 states to 4403 states and 14878 transitions. [2022-02-09 04:05:16,683 INFO L78 Accepts]: Start accepts. Automaton has 4403 states and 14878 transitions. Word has length 39 [2022-02-09 04:05:16,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:05:16,683 INFO L470 AbstractCegarLoop]: Abstraction has 4403 states and 14878 transitions. [2022-02-09 04:05:16,683 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:05:16,683 INFO L276 IsEmpty]: Start isEmpty. Operand 4403 states and 14878 transitions. [2022-02-09 04:05:16,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:05:16,690 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:05:16,690 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:05:16,690 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable242 [2022-02-09 04:05:16,690 INFO L402 AbstractCegarLoop]: === Iteration 244 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:05:16,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:05:16,690 INFO L85 PathProgramCache]: Analyzing trace with hash 2118221912, now seen corresponding path program 244 times [2022-02-09 04:05:16,691 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:05:16,691 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700742824] [2022-02-09 04:05:16,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:05:16,691 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:05:16,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:05:16,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:05:16,903 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:05:16,903 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700742824] [2022-02-09 04:05:16,903 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700742824] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:05:16,903 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:05:16,903 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:05:16,904 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434263967] [2022-02-09 04:05:16,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:05:16,904 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:05:16,904 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:05:16,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:05:16,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:05:16,904 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) [2022-02-09 04:05:18,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:05:18,381 INFO L93 Difference]: Finished difference Result 5475 states and 18297 transitions. [2022-02-09 04:05:18,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-02-09 04:05:18,382 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 [2022-02-09 04:05:18,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:05:18,392 INFO L225 Difference]: With dead ends: 5475 [2022-02-09 04:05:18,392 INFO L226 Difference]: Without dead ends: 5412 [2022-02-09 04:05:18,393 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 958 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=329, Invalid=3453, Unknown=0, NotChecked=0, Total=3782 [2022-02-09 04:05:18,393 INFO L933 BasicCegarLoop]: 127 mSDtfsCounter, 309 mSDsluCounter, 1546 mSDsCounter, 0 mSdLazyCounter, 2225 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.7s IncrementalHoareTripleChecker+Time [2022-02-09 04:05:18,393 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [309 Valid, 1250 Invalid, 2287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 2225 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-09 04:05:18,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5412 states. [2022-02-09 04:05:18,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5412 to 4403. [2022-02-09 04:05:18,467 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) [2022-02-09 04:05:18,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4403 states to 4403 states and 14875 transitions. [2022-02-09 04:05:18,475 INFO L78 Accepts]: Start accepts. Automaton has 4403 states and 14875 transitions. Word has length 39 [2022-02-09 04:05:18,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:05:18,475 INFO L470 AbstractCegarLoop]: Abstraction has 4403 states and 14875 transitions. [2022-02-09 04:05:18,475 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:05:18,475 INFO L276 IsEmpty]: Start isEmpty. Operand 4403 states and 14875 transitions. [2022-02-09 04:05:18,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:05:18,481 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:05:18,481 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:05:18,481 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable243 [2022-02-09 04:05:18,481 INFO L402 AbstractCegarLoop]: === Iteration 245 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:05:18,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:05:18,481 INFO L85 PathProgramCache]: Analyzing trace with hash 190580154, now seen corresponding path program 245 times [2022-02-09 04:05:18,481 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:05:18,481 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391557941] [2022-02-09 04:05:18,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:05:18,481 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:05:18,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:05:18,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:05:18,700 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:05:18,700 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391557941] [2022-02-09 04:05:18,700 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391557941] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:05:18,700 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:05:18,700 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:05:18,700 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628709534] [2022-02-09 04:05:18,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:05:18,700 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:05:18,700 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:05:18,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:05:18,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:05:18,700 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) [2022-02-09 04:05:20,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:05:20,135 INFO L93 Difference]: Finished difference Result 5380 states and 18081 transitions. [2022-02-09 04:05:20,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-02-09 04:05:20,135 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 [2022-02-09 04:05:20,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:05:20,146 INFO L225 Difference]: With dead ends: 5380 [2022-02-09 04:05:20,146 INFO L226 Difference]: Without dead ends: 5304 [2022-02-09 04:05:20,147 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 867 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=312, Invalid=3228, Unknown=0, NotChecked=0, Total=3540 [2022-02-09 04:05:20,147 INFO L933 BasicCegarLoop]: 128 mSDtfsCounter, 285 mSDsluCounter, 1553 mSDsCounter, 0 mSdLazyCounter, 2232 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.7s IncrementalHoareTripleChecker+Time [2022-02-09 04:05:20,147 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [285 Valid, 1253 Invalid, 2290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 2232 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-09 04:05:20,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5304 states. [2022-02-09 04:05:20,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5304 to 4394. [2022-02-09 04:05:20,209 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) [2022-02-09 04:05:20,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4394 states to 4394 states and 14854 transitions. [2022-02-09 04:05:20,218 INFO L78 Accepts]: Start accepts. Automaton has 4394 states and 14854 transitions. Word has length 39 [2022-02-09 04:05:20,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:05:20,218 INFO L470 AbstractCegarLoop]: Abstraction has 4394 states and 14854 transitions. [2022-02-09 04:05:20,219 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:05:20,219 INFO L276 IsEmpty]: Start isEmpty. Operand 4394 states and 14854 transitions. [2022-02-09 04:05:20,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:05:20,225 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:05:20,225 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] [2022-02-09 04:05:20,225 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable244 [2022-02-09 04:05:20,225 INFO L402 AbstractCegarLoop]: === Iteration 246 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:05:20,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:05:20,225 INFO L85 PathProgramCache]: Analyzing trace with hash 608825786, now seen corresponding path program 246 times [2022-02-09 04:05:20,225 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:05:20,225 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283223397] [2022-02-09 04:05:20,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:05:20,226 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:05:20,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:05:20,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:05:20,439 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:05:20,439 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283223397] [2022-02-09 04:05:20,439 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283223397] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:05:20,439 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:05:20,439 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:05:20,439 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054242928] [2022-02-09 04:05:20,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:05:20,439 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:05:20,439 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:05:20,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:05:20,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:05:20,439 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) [2022-02-09 04:05:22,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:05:22,646 INFO L93 Difference]: Finished difference Result 5557 states and 18619 transitions. [2022-02-09 04:05:22,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-02-09 04:05:22,646 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 [2022-02-09 04:05:22,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:05:22,658 INFO L225 Difference]: With dead ends: 5557 [2022-02-09 04:05:22,658 INFO L226 Difference]: Without dead ends: 5420 [2022-02-09 04:05:22,659 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 [2022-02-09 04:05:22,659 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, 1.0s IncrementalHoareTripleChecker+Time [2022-02-09 04:05:22,659 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [364 Valid, 1558 Invalid, 2931 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 2852 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-02-09 04:05:22,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5420 states. [2022-02-09 04:05:22,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5420 to 4400. [2022-02-09 04:05:22,728 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) [2022-02-09 04:05:22,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4400 states to 4400 states and 14870 transitions. [2022-02-09 04:05:22,737 INFO L78 Accepts]: Start accepts. Automaton has 4400 states and 14870 transitions. Word has length 39 [2022-02-09 04:05:22,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:05:22,738 INFO L470 AbstractCegarLoop]: Abstraction has 4400 states and 14870 transitions. [2022-02-09 04:05:22,738 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) [2022-02-09 04:05:22,738 INFO L276 IsEmpty]: Start isEmpty. Operand 4400 states and 14870 transitions. [2022-02-09 04:05:22,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:05:22,745 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:05:22,745 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] [2022-02-09 04:05:22,745 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable245 [2022-02-09 04:05:22,745 INFO L402 AbstractCegarLoop]: === Iteration 247 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:05:22,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:05:22,745 INFO L85 PathProgramCache]: Analyzing trace with hash -132126312, now seen corresponding path program 247 times [2022-02-09 04:05:22,745 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:05:22,745 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602624682] [2022-02-09 04:05:22,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:05:22,745 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:05:22,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:05:22,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:05:22,959 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:05:22,959 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602624682] [2022-02-09 04:05:22,959 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602624682] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:05:22,959 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:05:22,959 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:05:22,959 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433151675] [2022-02-09 04:05:22,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:05:22,959 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:05:22,959 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:05:22,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:05:22,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:05:22,960 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) [2022-02-09 04:05:24,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:05:24,818 INFO L93 Difference]: Finished difference Result 5529 states and 18482 transitions. [2022-02-09 04:05:24,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-02-09 04:05:24,818 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:05:24,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:05:24,830 INFO L225 Difference]: With dead ends: 5529 [2022-02-09 04:05:24,830 INFO L226 Difference]: Without dead ends: 5465 [2022-02-09 04:05:24,830 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1427 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=429, Invalid=4683, Unknown=0, NotChecked=0, Total=5112 [2022-02-09 04:05:24,831 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 [2022-02-09 04:05:24,831 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] [2022-02-09 04:05:24,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5465 states. [2022-02-09 04:05:24,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5465 to 4409. [2022-02-09 04:05:24,896 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) [2022-02-09 04:05:24,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4409 states to 4409 states and 14894 transitions. [2022-02-09 04:05:24,906 INFO L78 Accepts]: Start accepts. Automaton has 4409 states and 14894 transitions. Word has length 39 [2022-02-09 04:05:24,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:05:24,906 INFO L470 AbstractCegarLoop]: Abstraction has 4409 states and 14894 transitions. [2022-02-09 04:05:24,906 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) [2022-02-09 04:05:24,906 INFO L276 IsEmpty]: Start isEmpty. Operand 4409 states and 14894 transitions. [2022-02-09 04:05:24,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:05:24,913 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:05:24,913 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] [2022-02-09 04:05:24,913 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable246 [2022-02-09 04:05:24,913 INFO L402 AbstractCegarLoop]: === Iteration 248 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:05:24,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:05:24,913 INFO L85 PathProgramCache]: Analyzing trace with hash -1669545542, now seen corresponding path program 248 times [2022-02-09 04:05:24,913 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:05:24,913 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671375605] [2022-02-09 04:05:24,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:05:24,913 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:05:24,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:05:25,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:05:25,128 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:05:25,128 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671375605] [2022-02-09 04:05:25,128 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671375605] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:05:25,128 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:05:25,128 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:05:25,128 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516782095] [2022-02-09 04:05:25,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:05:25,129 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:05:25,129 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:05:25,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:05:25,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:05:25,129 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) [2022-02-09 04:05:26,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:05:26,629 INFO L93 Difference]: Finished difference Result 5469 states and 18300 transitions. [2022-02-09 04:05:26,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-02-09 04:05:26,630 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:05:26,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:05:26,640 INFO L225 Difference]: With dead ends: 5469 [2022-02-09 04:05:26,640 INFO L226 Difference]: Without dead ends: 5406 [2022-02-09 04:05:26,640 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 [2022-02-09 04:05:26,640 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 [2022-02-09 04:05:26,640 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] [2022-02-09 04:05:26,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5406 states. [2022-02-09 04:05:26,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5406 to 4409. [2022-02-09 04:05:26,693 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) [2022-02-09 04:05:26,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4409 states to 4409 states and 14891 transitions. [2022-02-09 04:05:26,702 INFO L78 Accepts]: Start accepts. Automaton has 4409 states and 14891 transitions. Word has length 39 [2022-02-09 04:05:26,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:05:26,702 INFO L470 AbstractCegarLoop]: Abstraction has 4409 states and 14891 transitions. [2022-02-09 04:05:26,702 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:05:26,702 INFO L276 IsEmpty]: Start isEmpty. Operand 4409 states and 14891 transitions. [2022-02-09 04:05:26,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:05:26,708 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:05:26,708 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] [2022-02-09 04:05:26,708 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable247 [2022-02-09 04:05:26,708 INFO L402 AbstractCegarLoop]: === Iteration 249 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:05:26,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:05:26,708 INFO L85 PathProgramCache]: Analyzing trace with hash 697779996, now seen corresponding path program 249 times [2022-02-09 04:05:26,708 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:05:26,708 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777828719] [2022-02-09 04:05:26,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:05:26,708 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:05:26,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:05:26,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:05:26,916 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:05:26,916 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777828719] [2022-02-09 04:05:26,916 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777828719] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:05:26,916 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:05:26,916 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:05:26,916 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801959944] [2022-02-09 04:05:26,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:05:26,916 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:05:26,916 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:05:26,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:05:26,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:05:26,917 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) [2022-02-09 04:05:28,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:05:28,386 INFO L93 Difference]: Finished difference Result 5488 states and 18346 transitions. [2022-02-09 04:05:28,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-02-09 04:05:28,386 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 [2022-02-09 04:05:28,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:05:28,397 INFO L225 Difference]: With dead ends: 5488 [2022-02-09 04:05:28,398 INFO L226 Difference]: Without dead ends: 5418 [2022-02-09 04:05:28,398 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 918 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=318, Invalid=3342, Unknown=0, NotChecked=0, Total=3660 [2022-02-09 04:05:28,398 INFO L933 BasicCegarLoop]: 124 mSDtfsCounter, 337 mSDsluCounter, 1529 mSDsCounter, 0 mSdLazyCounter, 2242 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.7s IncrementalHoareTripleChecker+Time [2022-02-09 04:05:28,398 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [337 Valid, 1218 Invalid, 2304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 2242 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-09 04:05:28,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5418 states. [2022-02-09 04:05:28,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5418 to 4406. [2022-02-09 04:05:28,463 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) [2022-02-09 04:05:28,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4406 states to 4406 states and 14883 transitions. [2022-02-09 04:05:28,473 INFO L78 Accepts]: Start accepts. Automaton has 4406 states and 14883 transitions. Word has length 39 [2022-02-09 04:05:28,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:05:28,473 INFO L470 AbstractCegarLoop]: Abstraction has 4406 states and 14883 transitions. [2022-02-09 04:05:28,473 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) [2022-02-09 04:05:28,473 INFO L276 IsEmpty]: Start isEmpty. Operand 4406 states and 14883 transitions. [2022-02-09 04:05:28,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:05:28,479 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:05:28,479 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] [2022-02-09 04:05:28,480 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable248 [2022-02-09 04:05:28,480 INFO L402 AbstractCegarLoop]: === Iteration 250 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:05:28,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:05:28,480 INFO L85 PathProgramCache]: Analyzing trace with hash -1317904204, now seen corresponding path program 250 times [2022-02-09 04:05:28,480 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:05:28,480 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255204202] [2022-02-09 04:05:28,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:05:28,480 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:05:28,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:05:28,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:05:28,683 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:05:28,683 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255204202] [2022-02-09 04:05:28,683 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255204202] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:05:28,683 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:05:28,683 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:05:28,683 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9682340] [2022-02-09 04:05:28,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:05:28,683 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:05:28,684 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:05:28,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:05:28,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:05:28,684 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) [2022-02-09 04:05:30,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:05:30,016 INFO L93 Difference]: Finished difference Result 5326 states and 17971 transitions. [2022-02-09 04:05:30,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-02-09 04:05:30,016 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 [2022-02-09 04:05:30,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:05:30,028 INFO L225 Difference]: With dead ends: 5326 [2022-02-09 04:05:30,028 INFO L226 Difference]: Without dead ends: 5250 [2022-02-09 04:05:30,029 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 750 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=285, Invalid=2795, Unknown=0, NotChecked=0, Total=3080 [2022-02-09 04:05:30,029 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 [2022-02-09 04:05:30,029 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] [2022-02-09 04:05:30,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5250 states. [2022-02-09 04:05:30,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5250 to 4420. [2022-02-09 04:05:30,098 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) [2022-02-09 04:05:30,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4420 states to 4420 states and 14913 transitions. [2022-02-09 04:05:30,109 INFO L78 Accepts]: Start accepts. Automaton has 4420 states and 14913 transitions. Word has length 39 [2022-02-09 04:05:30,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:05:30,109 INFO L470 AbstractCegarLoop]: Abstraction has 4420 states and 14913 transitions. [2022-02-09 04:05:30,109 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) [2022-02-09 04:05:30,109 INFO L276 IsEmpty]: Start isEmpty. Operand 4420 states and 14913 transitions. [2022-02-09 04:05:30,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:05:30,116 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:05:30,117 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] [2022-02-09 04:05:30,117 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable249 [2022-02-09 04:05:30,117 INFO L402 AbstractCegarLoop]: === Iteration 251 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:05:30,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:05:30,117 INFO L85 PathProgramCache]: Analyzing trace with hash 1429140758, now seen corresponding path program 251 times [2022-02-09 04:05:30,117 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:05:30,117 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892531160] [2022-02-09 04:05:30,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:05:30,117 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:05:30,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:05:30,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:05:30,328 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:05:30,328 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892531160] [2022-02-09 04:05:30,328 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892531160] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:05:30,328 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:05:30,328 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:05:30,328 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694191478] [2022-02-09 04:05:30,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:05:30,329 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:05:30,329 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:05:30,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:05:30,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:05:30,329 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) [2022-02-09 04:05:31,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:05:31,778 INFO L93 Difference]: Finished difference Result 5365 states and 18043 transitions. [2022-02-09 04:05:31,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-02-09 04:05:31,779 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 [2022-02-09 04:05:31,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:05:31,790 INFO L225 Difference]: With dead ends: 5365 [2022-02-09 04:05:31,790 INFO L226 Difference]: Without dead ends: 5266 [2022-02-09 04:05:31,790 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 829 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=301, Invalid=3121, Unknown=0, NotChecked=0, Total=3422 [2022-02-09 04:05:31,790 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, 0.7s IncrementalHoareTripleChecker+Time [2022-02-09 04:05:31,791 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [306 Valid, 1217 Invalid, 2264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 2204 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-09 04:05:31,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5266 states. [2022-02-09 04:05:31,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5266 to 4388. [2022-02-09 04:05:31,853 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) [2022-02-09 04:05:31,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4388 states to 4388 states and 14840 transitions. [2022-02-09 04:05:31,863 INFO L78 Accepts]: Start accepts. Automaton has 4388 states and 14840 transitions. Word has length 39 [2022-02-09 04:05:31,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:05:31,863 INFO L470 AbstractCegarLoop]: Abstraction has 4388 states and 14840 transitions. [2022-02-09 04:05:31,863 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:05:31,863 INFO L276 IsEmpty]: Start isEmpty. Operand 4388 states and 14840 transitions. [2022-02-09 04:05:31,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:05:31,870 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:05:31,870 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:05:31,870 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable250 [2022-02-09 04:05:31,870 INFO L402 AbstractCegarLoop]: === Iteration 252 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:05:31,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:05:31,870 INFO L85 PathProgramCache]: Analyzing trace with hash 1192163142, now seen corresponding path program 252 times [2022-02-09 04:05:31,870 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:05:31,870 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581303584] [2022-02-09 04:05:31,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:05:31,871 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:05:31,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:05:32,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:05:32,089 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:05:32,089 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581303584] [2022-02-09 04:05:32,089 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581303584] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:05:32,089 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:05:32,089 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:05:32,089 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051059003] [2022-02-09 04:05:32,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:05:32,089 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:05:32,089 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:05:32,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:05:32,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:05:32,090 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) [2022-02-09 04:05:33,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:05:33,775 INFO L93 Difference]: Finished difference Result 5636 states and 18948 transitions. [2022-02-09 04:05:33,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-02-09 04:05:33,775 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 [2022-02-09 04:05:33,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:05:33,786 INFO L225 Difference]: With dead ends: 5636 [2022-02-09 04:05:33,786 INFO L226 Difference]: Without dead ends: 5569 [2022-02-09 04:05:33,786 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 [2022-02-09 04:05:33,787 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 [2022-02-09 04:05:33,787 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] [2022-02-09 04:05:33,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5569 states. [2022-02-09 04:05:33,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5569 to 4406. [2022-02-09 04:05:33,869 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) [2022-02-09 04:05:33,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4406 states to 4406 states and 14888 transitions. [2022-02-09 04:05:33,877 INFO L78 Accepts]: Start accepts. Automaton has 4406 states and 14888 transitions. Word has length 39 [2022-02-09 04:05:33,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:05:33,877 INFO L470 AbstractCegarLoop]: Abstraction has 4406 states and 14888 transitions. [2022-02-09 04:05:33,877 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) [2022-02-09 04:05:33,877 INFO L276 IsEmpty]: Start isEmpty. Operand 4406 states and 14888 transitions. [2022-02-09 04:05:33,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:05:33,882 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:05:33,882 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:05:33,883 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable251 [2022-02-09 04:05:33,883 INFO L402 AbstractCegarLoop]: === Iteration 253 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:05:33,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:05:33,883 INFO L85 PathProgramCache]: Analyzing trace with hash 1061568294, now seen corresponding path program 253 times [2022-02-09 04:05:33,883 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:05:33,883 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215744017] [2022-02-09 04:05:33,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:05:33,883 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:05:33,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:05:34,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:05:34,092 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:05:34,092 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215744017] [2022-02-09 04:05:34,092 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215744017] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:05:34,092 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:05:34,092 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:05:34,092 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030462158] [2022-02-09 04:05:34,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:05:34,093 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:05:34,093 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:05:34,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:05:34,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:05:34,093 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) [2022-02-09 04:05:35,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:05:35,661 INFO L93 Difference]: Finished difference Result 5539 states and 18688 transitions. [2022-02-09 04:05:35,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-02-09 04:05:35,661 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 [2022-02-09 04:05:35,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:05:35,672 INFO L225 Difference]: With dead ends: 5539 [2022-02-09 04:05:35,672 INFO L226 Difference]: Without dead ends: 5476 [2022-02-09 04:05:35,673 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1179 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=419, Invalid=4003, Unknown=0, NotChecked=0, Total=4422 [2022-02-09 04:05:35,673 INFO L933 BasicCegarLoop]: 126 mSDtfsCounter, 283 mSDsluCounter, 1511 mSDsCounter, 0 mSdLazyCounter, 2102 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.7s IncrementalHoareTripleChecker+Time [2022-02-09 04:05:35,673 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [283 Valid, 1293 Invalid, 2164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 2102 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-09 04:05:35,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5476 states. [2022-02-09 04:05:35,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5476 to 4406. [2022-02-09 04:05:35,729 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) [2022-02-09 04:05:35,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4406 states to 4406 states and 14884 transitions. [2022-02-09 04:05:35,737 INFO L78 Accepts]: Start accepts. Automaton has 4406 states and 14884 transitions. Word has length 39 [2022-02-09 04:05:35,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:05:35,737 INFO L470 AbstractCegarLoop]: Abstraction has 4406 states and 14884 transitions. [2022-02-09 04:05:35,737 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:05:35,738 INFO L276 IsEmpty]: Start isEmpty. Operand 4406 states and 14884 transitions. [2022-02-09 04:05:35,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:05:35,743 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:05:35,743 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] [2022-02-09 04:05:35,743 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable252 [2022-02-09 04:05:35,743 INFO L402 AbstractCegarLoop]: === Iteration 254 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:05:35,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:05:35,744 INFO L85 PathProgramCache]: Analyzing trace with hash 925889702, now seen corresponding path program 254 times [2022-02-09 04:05:35,744 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:05:35,744 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236161824] [2022-02-09 04:05:35,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:05:35,744 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:05:35,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:05:35,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:05:35,957 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:05:35,957 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236161824] [2022-02-09 04:05:35,957 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236161824] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:05:35,957 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:05:35,957 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:05:35,957 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293563288] [2022-02-09 04:05:35,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:05:35,958 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:05:35,958 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:05:35,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:05:35,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:05:35,958 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) [2022-02-09 04:05:38,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:05:38,224 INFO L93 Difference]: Finished difference Result 5805 states and 19318 transitions. [2022-02-09 04:05:38,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-02-09 04:05:38,224 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:05:38,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:05:38,236 INFO L225 Difference]: With dead ends: 5805 [2022-02-09 04:05:38,236 INFO L226 Difference]: Without dead ends: 5723 [2022-02-09 04:05:38,237 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2324 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=628, Invalid=6854, Unknown=0, NotChecked=0, Total=7482 [2022-02-09 04:05:38,237 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 [2022-02-09 04:05:38,237 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] [2022-02-09 04:05:38,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5723 states. [2022-02-09 04:05:38,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5723 to 4421. [2022-02-09 04:05:38,295 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) [2022-02-09 04:05:38,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4421 states to 4421 states and 14923 transitions. [2022-02-09 04:05:38,303 INFO L78 Accepts]: Start accepts. Automaton has 4421 states and 14923 transitions. Word has length 39 [2022-02-09 04:05:38,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:05:38,303 INFO L470 AbstractCegarLoop]: Abstraction has 4421 states and 14923 transitions. [2022-02-09 04:05:38,303 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:05:38,303 INFO L276 IsEmpty]: Start isEmpty. Operand 4421 states and 14923 transitions. [2022-02-09 04:05:38,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:05:38,309 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:05:38,309 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:05:38,309 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable253 [2022-02-09 04:05:38,309 INFO L402 AbstractCegarLoop]: === Iteration 255 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:05:38,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:05:38,309 INFO L85 PathProgramCache]: Analyzing trace with hash -854708600, now seen corresponding path program 255 times [2022-02-09 04:05:38,309 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:05:38,310 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241598816] [2022-02-09 04:05:38,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:05:38,310 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:05:38,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:05:38,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:05:38,526 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:05:38,526 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241598816] [2022-02-09 04:05:38,526 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241598816] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:05:38,526 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:05:38,526 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:05:38,526 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875739696] [2022-02-09 04:05:38,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:05:38,527 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:05:38,527 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:05:38,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:05:38,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:05:38,527 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) [2022-02-09 04:05:40,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:05:40,675 INFO L93 Difference]: Finished difference Result 5707 states and 19089 transitions. [2022-02-09 04:05:40,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2022-02-09 04:05:40,675 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:05:40,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:05:40,686 INFO L225 Difference]: With dead ends: 5707 [2022-02-09 04:05:40,686 INFO L226 Difference]: Without dead ends: 5655 [2022-02-09 04:05:40,687 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 [2022-02-09 04:05:40,687 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 [2022-02-09 04:05:40,687 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] [2022-02-09 04:05:40,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5655 states. [2022-02-09 04:05:40,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5655 to 4413. [2022-02-09 04:05:40,744 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) [2022-02-09 04:05:40,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4413 states to 4413 states and 14903 transitions. [2022-02-09 04:05:40,753 INFO L78 Accepts]: Start accepts. Automaton has 4413 states and 14903 transitions. Word has length 39 [2022-02-09 04:05:40,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:05:40,753 INFO L470 AbstractCegarLoop]: Abstraction has 4413 states and 14903 transitions. [2022-02-09 04:05:40,753 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) [2022-02-09 04:05:40,753 INFO L276 IsEmpty]: Start isEmpty. Operand 4413 states and 14903 transitions. [2022-02-09 04:05:40,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:05:40,759 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:05:40,759 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:05:40,759 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable254 [2022-02-09 04:05:40,759 INFO L402 AbstractCegarLoop]: === Iteration 256 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:05:40,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:05:40,760 INFO L85 PathProgramCache]: Analyzing trace with hash 1844373272, now seen corresponding path program 256 times [2022-02-09 04:05:40,760 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:05:40,760 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315622055] [2022-02-09 04:05:40,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:05:40,760 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:05:40,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:05:40,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:05:40,976 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:05:40,976 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315622055] [2022-02-09 04:05:40,976 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315622055] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:05:40,976 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:05:40,976 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:05:40,976 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050126222] [2022-02-09 04:05:40,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:05:40,978 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:05:40,978 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:05:40,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:05:40,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:05:40,978 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) [2022-02-09 04:05:42,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:05:42,656 INFO L93 Difference]: Finished difference Result 5676 states and 18986 transitions. [2022-02-09 04:05:42,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-02-09 04:05:42,657 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:05:42,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:05:42,668 INFO L225 Difference]: With dead ends: 5676 [2022-02-09 04:05:42,668 INFO L226 Difference]: Without dead ends: 5621 [2022-02-09 04:05:42,668 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1326 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=455, Invalid=4375, Unknown=0, NotChecked=0, Total=4830 [2022-02-09 04:05:42,669 INFO L933 BasicCegarLoop]: 127 mSDtfsCounter, 312 mSDsluCounter, 1589 mSDsCounter, 0 mSdLazyCounter, 2189 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.7s IncrementalHoareTripleChecker+Time [2022-02-09 04:05:42,669 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [312 Valid, 1319 Invalid, 2254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 2189 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-09 04:05:42,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5621 states. [2022-02-09 04:05:42,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5621 to 4415. [2022-02-09 04:05:42,725 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) [2022-02-09 04:05:42,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4415 states to 4415 states and 14906 transitions. [2022-02-09 04:05:42,733 INFO L78 Accepts]: Start accepts. Automaton has 4415 states and 14906 transitions. Word has length 39 [2022-02-09 04:05:42,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:05:42,734 INFO L470 AbstractCegarLoop]: Abstraction has 4415 states and 14906 transitions. [2022-02-09 04:05:42,734 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:05:42,734 INFO L276 IsEmpty]: Start isEmpty. Operand 4415 states and 14906 transitions. [2022-02-09 04:05:42,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:05:42,740 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:05:42,740 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:05:42,740 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable255 [2022-02-09 04:05:42,740 INFO L402 AbstractCegarLoop]: === Iteration 257 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:05:42,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:05:42,740 INFO L85 PathProgramCache]: Analyzing trace with hash -1277941802, now seen corresponding path program 257 times [2022-02-09 04:05:42,740 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:05:42,740 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143849395] [2022-02-09 04:05:42,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:05:42,741 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:05:42,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:05:42,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:05:42,954 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:05:42,954 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143849395] [2022-02-09 04:05:42,954 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143849395] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:05:42,954 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:05:42,954 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:05:42,954 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781766310] [2022-02-09 04:05:42,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:05:42,954 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:05:42,954 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:05:42,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:05:42,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:05:42,954 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) [2022-02-09 04:05:44,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:05:44,585 INFO L93 Difference]: Finished difference Result 5611 states and 18834 transitions. [2022-02-09 04:05:44,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-02-09 04:05:44,586 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:05:44,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:05:44,598 INFO L225 Difference]: With dead ends: 5611 [2022-02-09 04:05:44,598 INFO L226 Difference]: Without dead ends: 5565 [2022-02-09 04:05:44,599 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1175 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=425, Invalid=3997, Unknown=0, NotChecked=0, Total=4422 [2022-02-09 04:05:44,599 INFO L933 BasicCegarLoop]: 125 mSDtfsCounter, 301 mSDsluCounter, 1585 mSDsCounter, 0 mSdLazyCounter, 2154 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.7s IncrementalHoareTripleChecker+Time [2022-02-09 04:05:44,599 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [301 Valid, 1316 Invalid, 2212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 2154 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-09 04:05:44,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5565 states. [2022-02-09 04:05:44,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5565 to 4419. [2022-02-09 04:05:44,690 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) [2022-02-09 04:05:44,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4419 states to 4419 states and 14914 transitions. [2022-02-09 04:05:44,700 INFO L78 Accepts]: Start accepts. Automaton has 4419 states and 14914 transitions. Word has length 39 [2022-02-09 04:05:44,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:05:44,700 INFO L470 AbstractCegarLoop]: Abstraction has 4419 states and 14914 transitions. [2022-02-09 04:05:44,700 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:05:44,700 INFO L276 IsEmpty]: Start isEmpty. Operand 4419 states and 14914 transitions. [2022-02-09 04:05:44,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:05:44,707 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:05:44,707 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:05:44,707 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable256 [2022-02-09 04:05:44,707 INFO L402 AbstractCegarLoop]: === Iteration 258 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:05:44,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:05:44,708 INFO L85 PathProgramCache]: Analyzing trace with hash -1525407964, now seen corresponding path program 258 times [2022-02-09 04:05:44,708 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:05:44,708 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903048630] [2022-02-09 04:05:44,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:05:44,708 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:05:44,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:05:44,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:05:44,918 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:05:44,918 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903048630] [2022-02-09 04:05:44,918 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903048630] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:05:44,918 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:05:44,918 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:05:44,918 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504072048] [2022-02-09 04:05:44,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:05:44,918 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:05:44,918 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:05:44,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:05:44,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:05:44,919 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) [2022-02-09 04:05:46,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:05:46,585 INFO L93 Difference]: Finished difference Result 5583 states and 18783 transitions. [2022-02-09 04:05:46,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-02-09 04:05:46,585 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 [2022-02-09 04:05:46,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:05:46,597 INFO L225 Difference]: With dead ends: 5583 [2022-02-09 04:05:46,597 INFO L226 Difference]: Without dead ends: 5534 [2022-02-09 04:05:46,598 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1224 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=437, Invalid=4119, Unknown=0, NotChecked=0, Total=4556 [2022-02-09 04:05:46,598 INFO L933 BasicCegarLoop]: 128 mSDtfsCounter, 317 mSDsluCounter, 1564 mSDsCounter, 0 mSdLazyCounter, 2139 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.7s IncrementalHoareTripleChecker+Time [2022-02-09 04:05:46,598 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [317 Valid, 1334 Invalid, 2210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 2139 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-09 04:05:46,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5534 states. [2022-02-09 04:05:46,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5534 to 4409. [2022-02-09 04:05:46,666 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) [2022-02-09 04:05:46,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4409 states to 4409 states and 14895 transitions. [2022-02-09 04:05:46,676 INFO L78 Accepts]: Start accepts. Automaton has 4409 states and 14895 transitions. Word has length 39 [2022-02-09 04:05:46,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:05:46,676 INFO L470 AbstractCegarLoop]: Abstraction has 4409 states and 14895 transitions. [2022-02-09 04:05:46,676 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:05:46,676 INFO L276 IsEmpty]: Start isEmpty. Operand 4409 states and 14895 transitions. [2022-02-09 04:05:46,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:05:46,683 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:05:46,683 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:05:46,683 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable257 [2022-02-09 04:05:46,683 INFO L402 AbstractCegarLoop]: === Iteration 259 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:05:46,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:05:46,683 INFO L85 PathProgramCache]: Analyzing trace with hash -66868668, now seen corresponding path program 259 times [2022-02-09 04:05:46,684 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:05:46,684 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346655858] [2022-02-09 04:05:46,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:05:46,684 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:05:46,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:05:46,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:05:46,921 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:05:46,921 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346655858] [2022-02-09 04:05:46,921 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346655858] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:05:46,921 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:05:46,921 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:05:46,921 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091069077] [2022-02-09 04:05:46,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:05:46,922 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:05:46,922 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:05:46,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:05:46,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:05:46,922 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) [2022-02-09 04:05:48,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:05:48,585 INFO L93 Difference]: Finished difference Result 5682 states and 19072 transitions. [2022-02-09 04:05:48,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-02-09 04:05:48,586 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:05:48,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:05:48,598 INFO L225 Difference]: With dead ends: 5682 [2022-02-09 04:05:48,598 INFO L226 Difference]: Without dead ends: 5615 [2022-02-09 04:05:48,599 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 [2022-02-09 04:05:48,599 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 [2022-02-09 04:05:48,599 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] [2022-02-09 04:05:48,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5615 states. [2022-02-09 04:05:48,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5615 to 4427. [2022-02-09 04:05:48,669 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) [2022-02-09 04:05:48,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4427 states to 4427 states and 14937 transitions. [2022-02-09 04:05:48,680 INFO L78 Accepts]: Start accepts. Automaton has 4427 states and 14937 transitions. Word has length 39 [2022-02-09 04:05:48,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:05:48,680 INFO L470 AbstractCegarLoop]: Abstraction has 4427 states and 14937 transitions. [2022-02-09 04:05:48,680 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:05:48,680 INFO L276 IsEmpty]: Start isEmpty. Operand 4427 states and 14937 transitions. [2022-02-09 04:05:48,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:05:48,687 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:05:48,687 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] [2022-02-09 04:05:48,687 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable258 [2022-02-09 04:05:48,687 INFO L402 AbstractCegarLoop]: === Iteration 260 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:05:48,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:05:48,687 INFO L85 PathProgramCache]: Analyzing trace with hash 291201540, now seen corresponding path program 260 times [2022-02-09 04:05:48,687 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:05:48,687 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008158185] [2022-02-09 04:05:48,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:05:48,688 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:05:48,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:05:48,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:05:48,902 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:05:48,902 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008158185] [2022-02-09 04:05:48,902 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008158185] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:05:48,902 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:05:48,902 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:05:48,902 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606383694] [2022-02-09 04:05:48,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:05:48,902 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:05:48,902 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:05:48,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:05:48,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:05:48,903 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) [2022-02-09 04:05:50,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:05:50,532 INFO L93 Difference]: Finished difference Result 5644 states and 18947 transitions. [2022-02-09 04:05:50,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-02-09 04:05:50,532 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:05:50,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:05:50,544 INFO L225 Difference]: With dead ends: 5644 [2022-02-09 04:05:50,544 INFO L226 Difference]: Without dead ends: 5569 [2022-02-09 04:05:50,544 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 [2022-02-09 04:05:50,545 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, 0.7s IncrementalHoareTripleChecker+Time [2022-02-09 04:05:50,545 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [299 Valid, 1332 Invalid, 2321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 2264 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-09 04:05:50,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5569 states. [2022-02-09 04:05:50,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5569 to 4427. [2022-02-09 04:05:50,613 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) [2022-02-09 04:05:50,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4427 states to 4427 states and 14931 transitions. [2022-02-09 04:05:50,623 INFO L78 Accepts]: Start accepts. Automaton has 4427 states and 14931 transitions. Word has length 39 [2022-02-09 04:05:50,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:05:50,623 INFO L470 AbstractCegarLoop]: Abstraction has 4427 states and 14931 transitions. [2022-02-09 04:05:50,623 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) [2022-02-09 04:05:50,623 INFO L276 IsEmpty]: Start isEmpty. Operand 4427 states and 14931 transitions. [2022-02-09 04:05:50,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:05:50,630 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:05:50,630 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] [2022-02-09 04:05:50,630 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable259 [2022-02-09 04:05:50,630 INFO L402 AbstractCegarLoop]: === Iteration 261 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:05:50,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:05:50,630 INFO L85 PathProgramCache]: Analyzing trace with hash 1919506594, now seen corresponding path program 261 times [2022-02-09 04:05:50,630 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:05:50,630 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926150778] [2022-02-09 04:05:50,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:05:50,630 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:05:50,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:05:50,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:05:50,840 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:05:50,840 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926150778] [2022-02-09 04:05:50,840 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926150778] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:05:50,841 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:05:50,841 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:05:50,841 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628966328] [2022-02-09 04:05:50,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:05:50,841 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:05:50,841 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:05:50,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:05:50,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:05:50,841 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) [2022-02-09 04:05:53,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:05:53,230 INFO L93 Difference]: Finished difference Result 5812 states and 19359 transitions. [2022-02-09 04:05:53,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-02-09 04:05:53,230 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:05:53,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:05:53,241 INFO L225 Difference]: With dead ends: 5812 [2022-02-09 04:05:53,241 INFO L226 Difference]: Without dead ends: 5720 [2022-02-09 04:05:53,242 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 [2022-02-09 04:05:53,242 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 [2022-02-09 04:05:53,242 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] [2022-02-09 04:05:53,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5720 states. [2022-02-09 04:05:53,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5720 to 4432. [2022-02-09 04:05:53,299 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) [2022-02-09 04:05:53,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4432 states to 4432 states and 14945 transitions. [2022-02-09 04:05:53,307 INFO L78 Accepts]: Start accepts. Automaton has 4432 states and 14945 transitions. Word has length 39 [2022-02-09 04:05:53,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:05:53,308 INFO L470 AbstractCegarLoop]: Abstraction has 4432 states and 14945 transitions. [2022-02-09 04:05:53,308 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) [2022-02-09 04:05:53,308 INFO L276 IsEmpty]: Start isEmpty. Operand 4432 states and 14945 transitions. [2022-02-09 04:05:53,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:05:53,314 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:05:53,314 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] [2022-02-09 04:05:53,314 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable260 [2022-02-09 04:05:53,314 INFO L402 AbstractCegarLoop]: === Iteration 262 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:05:53,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:05:53,314 INFO L85 PathProgramCache]: Analyzing trace with hash 138908292, now seen corresponding path program 262 times [2022-02-09 04:05:53,314 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:05:53,314 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112158313] [2022-02-09 04:05:53,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:05:53,314 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:05:53,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:05:53,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:05:53,522 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:05:53,522 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112158313] [2022-02-09 04:05:53,522 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112158313] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:05:53,522 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:05:53,522 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:05:53,522 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008885344] [2022-02-09 04:05:53,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:05:53,522 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:05:53,522 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:05:53,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:05:53,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:05:53,523 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) [2022-02-09 04:05:55,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:05:55,676 INFO L93 Difference]: Finished difference Result 5751 states and 19210 transitions. [2022-02-09 04:05:55,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2022-02-09 04:05:55,677 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 [2022-02-09 04:05:55,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:05:55,689 INFO L225 Difference]: With dead ends: 5751 [2022-02-09 04:05:55,689 INFO L226 Difference]: Without dead ends: 5699 [2022-02-09 04:05:55,689 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2066 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=564, Invalid=6242, Unknown=0, NotChecked=0, Total=6806 [2022-02-09 04:05:55,689 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 [2022-02-09 04:05:55,689 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] [2022-02-09 04:05:55,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5699 states. [2022-02-09 04:05:55,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5699 to 4426. [2022-02-09 04:05:55,755 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) [2022-02-09 04:05:55,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4426 states to 4426 states and 14929 transitions. [2022-02-09 04:05:55,764 INFO L78 Accepts]: Start accepts. Automaton has 4426 states and 14929 transitions. Word has length 39 [2022-02-09 04:05:55,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:05:55,764 INFO L470 AbstractCegarLoop]: Abstraction has 4426 states and 14929 transitions. [2022-02-09 04:05:55,764 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:05:55,764 INFO L276 IsEmpty]: Start isEmpty. Operand 4426 states and 14929 transitions. [2022-02-09 04:05:55,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:05:55,771 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:05:55,771 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:05:55,771 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable261 [2022-02-09 04:05:55,771 INFO L402 AbstractCegarLoop]: === Iteration 263 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:05:55,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:05:55,771 INFO L85 PathProgramCache]: Analyzing trace with hash 382087364, now seen corresponding path program 263 times [2022-02-09 04:05:55,771 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:05:55,772 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773701618] [2022-02-09 04:05:55,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:05:55,772 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:05:55,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:05:55,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:05:55,984 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:05:55,984 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773701618] [2022-02-09 04:05:55,984 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773701618] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:05:55,985 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:05:55,985 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:05:55,985 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312128654] [2022-02-09 04:05:55,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:05:55,985 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:05:55,985 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:05:55,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:05:55,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:05:55,985 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) [2022-02-09 04:05:57,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:05:57,697 INFO L93 Difference]: Finished difference Result 5765 states and 19209 transitions. [2022-02-09 04:05:57,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-02-09 04:05:57,698 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:05:57,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:05:57,710 INFO L225 Difference]: With dead ends: 5765 [2022-02-09 04:05:57,710 INFO L226 Difference]: Without dead ends: 5702 [2022-02-09 04:05:57,711 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1331 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=431, Invalid=4399, Unknown=0, NotChecked=0, Total=4830 [2022-02-09 04:05:57,711 INFO L933 BasicCegarLoop]: 132 mSDtfsCounter, 325 mSDsluCounter, 1630 mSDsCounter, 0 mSdLazyCounter, 2324 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.8s IncrementalHoareTripleChecker+Time [2022-02-09 04:05:57,711 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [325 Valid, 1347 Invalid, 2386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 2324 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-09 04:05:57,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5702 states. [2022-02-09 04:05:57,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5702 to 4429. [2022-02-09 04:05:57,795 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) [2022-02-09 04:05:57,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4429 states to 4429 states and 14934 transitions. [2022-02-09 04:05:57,805 INFO L78 Accepts]: Start accepts. Automaton has 4429 states and 14934 transitions. Word has length 39 [2022-02-09 04:05:57,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:05:57,805 INFO L470 AbstractCegarLoop]: Abstraction has 4429 states and 14934 transitions. [2022-02-09 04:05:57,805 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:05:57,805 INFO L276 IsEmpty]: Start isEmpty. Operand 4429 states and 14934 transitions. [2022-02-09 04:05:57,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:05:57,812 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:05:57,812 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:05:57,812 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable262 [2022-02-09 04:05:57,812 INFO L402 AbstractCegarLoop]: === Iteration 264 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:05:57,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:05:57,812 INFO L85 PathProgramCache]: Analyzing trace with hash -1545554394, now seen corresponding path program 264 times [2022-02-09 04:05:57,812 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:05:57,812 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544315488] [2022-02-09 04:05:57,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:05:57,813 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:05:57,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:05:58,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:05:58,021 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:05:58,021 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544315488] [2022-02-09 04:05:58,021 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544315488] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:05:58,021 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:05:58,021 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:05:58,021 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12689180] [2022-02-09 04:05:58,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:05:58,022 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:05:58,022 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:05:58,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:05:58,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:05:58,022 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) [2022-02-09 04:05:59,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:05:59,662 INFO L93 Difference]: Finished difference Result 5656 states and 18956 transitions. [2022-02-09 04:05:59,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-02-09 04:05:59,662 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 [2022-02-09 04:05:59,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:05:59,674 INFO L225 Difference]: With dead ends: 5656 [2022-02-09 04:05:59,674 INFO L226 Difference]: Without dead ends: 5610 [2022-02-09 04:05:59,675 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1180 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=401, Invalid=4021, Unknown=0, NotChecked=0, Total=4422 [2022-02-09 04:05:59,675 INFO L933 BasicCegarLoop]: 128 mSDtfsCounter, 304 mSDsluCounter, 1565 mSDsCounter, 0 mSdLazyCounter, 2275 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.7s IncrementalHoareTripleChecker+Time [2022-02-09 04:05:59,675 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [304 Valid, 1300 Invalid, 2331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 2275 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-09 04:05:59,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5610 states. [2022-02-09 04:05:59,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5610 to 4436. [2022-02-09 04:05:59,743 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) [2022-02-09 04:05:59,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4436 states to 4436 states and 14949 transitions. [2022-02-09 04:05:59,753 INFO L78 Accepts]: Start accepts. Automaton has 4436 states and 14949 transitions. Word has length 39 [2022-02-09 04:05:59,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:05:59,753 INFO L470 AbstractCegarLoop]: Abstraction has 4436 states and 14949 transitions. [2022-02-09 04:05:59,753 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) [2022-02-09 04:05:59,753 INFO L276 IsEmpty]: Start isEmpty. Operand 4436 states and 14949 transitions. [2022-02-09 04:05:59,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:05:59,760 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:05:59,760 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] [2022-02-09 04:05:59,760 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable263 [2022-02-09 04:05:59,760 INFO L402 AbstractCegarLoop]: === Iteration 265 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:05:59,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:05:59,760 INFO L85 PathProgramCache]: Analyzing trace with hash 1314345412, now seen corresponding path program 265 times [2022-02-09 04:05:59,760 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:05:59,760 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975029178] [2022-02-09 04:05:59,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:05:59,760 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:05:59,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:05:59,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:05:59,986 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:05:59,986 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975029178] [2022-02-09 04:05:59,986 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975029178] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:05:59,986 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:05:59,986 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:05:59,986 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090462060] [2022-02-09 04:05:59,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:05:59,986 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:05:59,986 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:05:59,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:05:59,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:05:59,987 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) [2022-02-09 04:06:01,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:06:01,660 INFO L93 Difference]: Finished difference Result 5586 states and 18745 transitions. [2022-02-09 04:06:01,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-02-09 04:06:01,660 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:06:01,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:06:01,672 INFO L225 Difference]: With dead ends: 5586 [2022-02-09 04:06:01,672 INFO L226 Difference]: Without dead ends: 5525 [2022-02-09 04:06:01,673 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1126 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=384, Invalid=3906, Unknown=0, NotChecked=0, Total=4290 [2022-02-09 04:06:01,673 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 [2022-02-09 04:06:01,673 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] [2022-02-09 04:06:01,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5525 states. [2022-02-09 04:06:01,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5525 to 4420. [2022-02-09 04:06:01,731 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) [2022-02-09 04:06:01,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4420 states to 4420 states and 14917 transitions. [2022-02-09 04:06:01,739 INFO L78 Accepts]: Start accepts. Automaton has 4420 states and 14917 transitions. Word has length 39 [2022-02-09 04:06:01,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:06:01,739 INFO L470 AbstractCegarLoop]: Abstraction has 4420 states and 14917 transitions. [2022-02-09 04:06:01,739 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:06:01,739 INFO L276 IsEmpty]: Start isEmpty. Operand 4420 states and 14917 transitions. [2022-02-09 04:06:01,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:06:01,745 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:06:01,745 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] [2022-02-09 04:06:01,745 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable264 [2022-02-09 04:06:01,745 INFO L402 AbstractCegarLoop]: === Iteration 266 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:06:01,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:06:01,745 INFO L85 PathProgramCache]: Analyzing trace with hash -972824730, now seen corresponding path program 266 times [2022-02-09 04:06:01,746 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:06:01,746 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598328579] [2022-02-09 04:06:01,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:06:01,746 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:06:01,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:06:01,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:06:01,957 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:06:01,957 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598328579] [2022-02-09 04:06:01,957 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598328579] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:06:01,957 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:06:01,957 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:06:01,957 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235934000] [2022-02-09 04:06:01,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:06:01,957 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:06:01,957 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:06:01,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:06:01,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:06:01,957 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) [2022-02-09 04:06:03,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:06:03,534 INFO L93 Difference]: Finished difference Result 5615 states and 19016 transitions. [2022-02-09 04:06:03,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-02-09 04:06:03,534 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:06:03,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:06:03,545 INFO L225 Difference]: With dead ends: 5615 [2022-02-09 04:06:03,545 INFO L226 Difference]: Without dead ends: 5552 [2022-02-09 04:06:03,545 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1042 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=374, Invalid=3658, Unknown=0, NotChecked=0, Total=4032 [2022-02-09 04:06:03,545 INFO L933 BasicCegarLoop]: 152 mSDtfsCounter, 298 mSDsluCounter, 1722 mSDsCounter, 0 mSdLazyCounter, 2399 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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, 0.8s IncrementalHoareTripleChecker+Time [2022-02-09 04:06:03,546 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [298 Valid, 1519 Invalid, 2460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 2399 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-09 04:06:03,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5552 states. [2022-02-09 04:06:03,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5552 to 4412. [2022-02-09 04:06:03,600 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) [2022-02-09 04:06:03,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4412 states to 4412 states and 14897 transitions. [2022-02-09 04:06:03,608 INFO L78 Accepts]: Start accepts. Automaton has 4412 states and 14897 transitions. Word has length 39 [2022-02-09 04:06:03,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:06:03,608 INFO L470 AbstractCegarLoop]: Abstraction has 4412 states and 14897 transitions. [2022-02-09 04:06:03,608 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:06:03,608 INFO L276 IsEmpty]: Start isEmpty. Operand 4412 states and 14897 transitions. [2022-02-09 04:06:03,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:06:03,614 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:06:03,614 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] [2022-02-09 04:06:03,614 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable265 [2022-02-09 04:06:03,614 INFO L402 AbstractCegarLoop]: === Iteration 267 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:06:03,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:06:03,615 INFO L85 PathProgramCache]: Analyzing trace with hash -1218316828, now seen corresponding path program 267 times [2022-02-09 04:06:03,615 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:06:03,615 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351916719] [2022-02-09 04:06:03,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:06:03,615 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:06:03,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:06:03,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:06:03,835 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:06:03,835 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351916719] [2022-02-09 04:06:03,835 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351916719] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:06:03,835 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:06:03,835 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:06:03,835 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511303424] [2022-02-09 04:06:03,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:06:03,835 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:06:03,835 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:06:03,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:06:03,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:06:03,835 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) [2022-02-09 04:06:05,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:06:05,460 INFO L93 Difference]: Finished difference Result 5686 states and 19189 transitions. [2022-02-09 04:06:05,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-02-09 04:06:05,460 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:06:05,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:06:05,472 INFO L225 Difference]: With dead ends: 5686 [2022-02-09 04:06:05,472 INFO L226 Difference]: Without dead ends: 5611 [2022-02-09 04:06:05,473 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1042 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=374, Invalid=3658, Unknown=0, NotChecked=0, Total=4032 [2022-02-09 04:06:05,473 INFO L933 BasicCegarLoop]: 154 mSDtfsCounter, 308 mSDsluCounter, 1779 mSDsCounter, 0 mSdLazyCounter, 2464 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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, 0.8s IncrementalHoareTripleChecker+Time [2022-02-09 04:06:05,473 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [308 Valid, 1539 Invalid, 2524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 2464 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-09 04:06:05,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5611 states. [2022-02-09 04:06:05,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5611 to 4400. [2022-02-09 04:06:05,556 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) [2022-02-09 04:06:05,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4400 states to 4400 states and 14867 transitions. [2022-02-09 04:06:05,565 INFO L78 Accepts]: Start accepts. Automaton has 4400 states and 14867 transitions. Word has length 39 [2022-02-09 04:06:05,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:06:05,565 INFO L470 AbstractCegarLoop]: Abstraction has 4400 states and 14867 transitions. [2022-02-09 04:06:05,565 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:06:05,565 INFO L276 IsEmpty]: Start isEmpty. Operand 4400 states and 14867 transitions. [2022-02-09 04:06:05,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:06:05,572 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:06:05,572 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:06:05,572 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable266 [2022-02-09 04:06:05,572 INFO L402 AbstractCegarLoop]: === Iteration 268 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:06:05,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:06:05,573 INFO L85 PathProgramCache]: Analyzing trace with hash 1892945830, now seen corresponding path program 268 times [2022-02-09 04:06:05,573 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:06:05,573 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257864211] [2022-02-09 04:06:05,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:06:05,573 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:06:05,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:06:05,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:06:05,787 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:06:05,787 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257864211] [2022-02-09 04:06:05,787 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257864211] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:06:05,787 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:06:05,787 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:06:05,787 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540517802] [2022-02-09 04:06:05,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:06:05,787 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:06:05,787 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:06:05,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:06:05,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:06:05,788 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) [2022-02-09 04:06:07,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:06:07,689 INFO L93 Difference]: Finished difference Result 6230 states and 20933 transitions. [2022-02-09 04:06:07,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-02-09 04:06:07,689 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 [2022-02-09 04:06:07,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:06:07,702 INFO L225 Difference]: With dead ends: 6230 [2022-02-09 04:06:07,703 INFO L226 Difference]: Without dead ends: 6175 [2022-02-09 04:06:07,703 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 [2022-02-09 04:06:07,703 INFO L933 BasicCegarLoop]: 188 mSDtfsCounter, 353 mSDsluCounter, 2126 mSDsCounter, 0 mSdLazyCounter, 2821 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s 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, 1.0s IncrementalHoareTripleChecker+Time [2022-02-09 04:06:07,703 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [353 Valid, 1890 Invalid, 2885 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 2821 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-02-09 04:06:07,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6175 states. [2022-02-09 04:06:07,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6175 to 4406. [2022-02-09 04:06:07,773 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) [2022-02-09 04:06:07,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4406 states to 4406 states and 14880 transitions. [2022-02-09 04:06:07,782 INFO L78 Accepts]: Start accepts. Automaton has 4406 states and 14880 transitions. Word has length 39 [2022-02-09 04:06:07,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:06:07,782 INFO L470 AbstractCegarLoop]: Abstraction has 4406 states and 14880 transitions. [2022-02-09 04:06:07,782 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:06:07,783 INFO L276 IsEmpty]: Start isEmpty. Operand 4406 states and 14880 transitions. [2022-02-09 04:06:07,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:06:07,789 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:06:07,789 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:06:07,789 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable267 [2022-02-09 04:06:07,789 INFO L402 AbstractCegarLoop]: === Iteration 269 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:06:07,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:06:07,789 INFO L85 PathProgramCache]: Analyzing trace with hash -1064963452, now seen corresponding path program 269 times [2022-02-09 04:06:07,790 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:06:07,790 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941031857] [2022-02-09 04:06:07,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:06:07,790 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:06:07,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:06:08,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:06:08,029 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:06:08,029 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941031857] [2022-02-09 04:06:08,029 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941031857] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:06:08,029 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:06:08,029 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:06:08,029 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550865280] [2022-02-09 04:06:08,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:06:08,030 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:06:08,030 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:06:08,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:06:08,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:06:08,030 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) [2022-02-09 04:06:09,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:06:09,789 INFO L93 Difference]: Finished difference Result 6218 states and 20895 transitions. [2022-02-09 04:06:09,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-02-09 04:06:09,789 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 [2022-02-09 04:06:09,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:06:09,802 INFO L225 Difference]: With dead ends: 6218 [2022-02-09 04:06:09,802 INFO L226 Difference]: Without dead ends: 6145 [2022-02-09 04:06:09,803 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 [2022-02-09 04:06:09,803 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, 0.9s IncrementalHoareTripleChecker+Time [2022-02-09 04:06:09,803 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [344 Valid, 1926 Invalid, 2887 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 2823 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-09 04:06:09,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6145 states. [2022-02-09 04:06:09,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6145 to 4396. [2022-02-09 04:06:09,868 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) [2022-02-09 04:06:09,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4396 states to 4396 states and 14859 transitions. [2022-02-09 04:06:09,877 INFO L78 Accepts]: Start accepts. Automaton has 4396 states and 14859 transitions. Word has length 39 [2022-02-09 04:06:09,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:06:09,877 INFO L470 AbstractCegarLoop]: Abstraction has 4396 states and 14859 transitions. [2022-02-09 04:06:09,877 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) [2022-02-09 04:06:09,877 INFO L276 IsEmpty]: Start isEmpty. Operand 4396 states and 14859 transitions. [2022-02-09 04:06:09,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:06:09,883 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:06:09,883 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] [2022-02-09 04:06:09,883 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable268 [2022-02-09 04:06:09,883 INFO L402 AbstractCegarLoop]: === Iteration 270 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:06:09,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:06:09,884 INFO L85 PathProgramCache]: Analyzing trace with hash -1434538216, now seen corresponding path program 270 times [2022-02-09 04:06:09,884 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:06:09,884 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417901727] [2022-02-09 04:06:09,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:06:09,884 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:06:09,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:06:10,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:06:10,095 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:06:10,095 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417901727] [2022-02-09 04:06:10,095 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417901727] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:06:10,095 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:06:10,095 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:06:10,095 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468041453] [2022-02-09 04:06:10,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:06:10,095 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:06:10,095 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:06:10,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:06:10,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:06:10,096 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) [2022-02-09 04:06:12,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:06:12,984 INFO L93 Difference]: Finished difference Result 8826 states and 29328 transitions. [2022-02-09 04:06:12,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2022-02-09 04:06:12,984 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 [2022-02-09 04:06:12,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:06:13,002 INFO L225 Difference]: With dead ends: 8826 [2022-02-09 04:06:13,002 INFO L226 Difference]: Without dead ends: 8626 [2022-02-09 04:06:13,004 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3514 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=797, Invalid=9709, Unknown=0, NotChecked=0, Total=10506 [2022-02-09 04:06:13,004 INFO L933 BasicCegarLoop]: 250 mSDtfsCounter, 537 mSDsluCounter, 3163 mSDsCounter, 0 mSdLazyCounter, 3803 mSolverCounterSat, 144 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s 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, 1.2s IncrementalHoareTripleChecker+Time [2022-02-09 04:06:13,004 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [537 Valid, 2839 Invalid, 3947 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [144 Valid, 3803 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-02-09 04:06:13,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8626 states. [2022-02-09 04:06:13,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8626 to 5000. [2022-02-09 04:06:13,088 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) [2022-02-09 04:06:13,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5000 states to 5000 states and 16981 transitions. [2022-02-09 04:06:13,097 INFO L78 Accepts]: Start accepts. Automaton has 5000 states and 16981 transitions. Word has length 39 [2022-02-09 04:06:13,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:06:13,097 INFO L470 AbstractCegarLoop]: Abstraction has 5000 states and 16981 transitions. [2022-02-09 04:06:13,097 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) [2022-02-09 04:06:13,098 INFO L276 IsEmpty]: Start isEmpty. Operand 5000 states and 16981 transitions. [2022-02-09 04:06:13,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:06:13,104 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:06:13,104 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:06:13,104 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable269 [2022-02-09 04:06:13,104 INFO L402 AbstractCegarLoop]: === Iteration 271 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:06:13,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:06:13,105 INFO L85 PathProgramCache]: Analyzing trace with hash -261885994, now seen corresponding path program 271 times [2022-02-09 04:06:13,105 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:06:13,105 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913546698] [2022-02-09 04:06:13,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:06:13,105 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:06:13,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:06:13,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:06:13,326 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:06:13,326 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913546698] [2022-02-09 04:06:13,327 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913546698] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:06:13,327 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:06:13,327 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:06:13,327 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525507016] [2022-02-09 04:06:13,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:06:13,327 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:06:13,327 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:06:13,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:06:13,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:06:13,327 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) [2022-02-09 04:06:16,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:06:16,049 INFO L93 Difference]: Finished difference Result 8993 states and 29811 transitions. [2022-02-09 04:06:16,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2022-02-09 04:06:16,049 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:06:16,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:06:16,067 INFO L225 Difference]: With dead ends: 8993 [2022-02-09 04:06:16,067 INFO L226 Difference]: Without dead ends: 8756 [2022-02-09 04:06:16,068 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3112 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=751, Invalid=8755, Unknown=0, NotChecked=0, Total=9506 [2022-02-09 04:06:16,068 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 [2022-02-09 04:06:16,068 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] [2022-02-09 04:06:16,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8756 states. [2022-02-09 04:06:16,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8756 to 4980. [2022-02-09 04:06:16,168 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) [2022-02-09 04:06:16,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4980 states to 4980 states and 16931 transitions. [2022-02-09 04:06:16,177 INFO L78 Accepts]: Start accepts. Automaton has 4980 states and 16931 transitions. Word has length 39 [2022-02-09 04:06:16,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:06:16,177 INFO L470 AbstractCegarLoop]: Abstraction has 4980 states and 16931 transitions. [2022-02-09 04:06:16,177 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) [2022-02-09 04:06:16,177 INFO L276 IsEmpty]: Start isEmpty. Operand 4980 states and 16931 transitions. [2022-02-09 04:06:16,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:06:16,184 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:06:16,184 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] [2022-02-09 04:06:16,184 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable270 [2022-02-09 04:06:16,184 INFO L402 AbstractCegarLoop]: === Iteration 272 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:06:16,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:06:16,184 INFO L85 PathProgramCache]: Analyzing trace with hash -329630874, now seen corresponding path program 272 times [2022-02-09 04:06:16,184 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:06:16,184 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564871897] [2022-02-09 04:06:16,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:06:16,185 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:06:16,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:06:16,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:06:16,391 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:06:16,391 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564871897] [2022-02-09 04:06:16,391 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564871897] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:06:16,391 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:06:16,391 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:06:16,391 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953731903] [2022-02-09 04:06:16,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:06:16,391 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:06:16,391 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:06:16,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:06:16,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:06:16,391 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) [2022-02-09 04:06:19,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:06:19,163 INFO L93 Difference]: Finished difference Result 8741 states and 29144 transitions. [2022-02-09 04:06:19,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-02-09 04:06:19,163 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 [2022-02-09 04:06:19,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:06:19,182 INFO L225 Difference]: With dead ends: 8741 [2022-02-09 04:06:19,182 INFO L226 Difference]: Without dead ends: 8609 [2022-02-09 04:06:19,183 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3353 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=761, Invalid=9339, Unknown=0, NotChecked=0, Total=10100 [2022-02-09 04:06:19,183 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 519 mSDsluCounter, 3027 mSDsCounter, 0 mSdLazyCounter, 3674 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s 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, 1.2s IncrementalHoareTripleChecker+Time [2022-02-09 04:06:19,183 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [519 Valid, 2760 Invalid, 3811 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 3674 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-02-09 04:06:19,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8609 states. [2022-02-09 04:06:19,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8609 to 5021. [2022-02-09 04:06:19,274 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) [2022-02-09 04:06:19,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5021 states to 5021 states and 17035 transitions. [2022-02-09 04:06:19,285 INFO L78 Accepts]: Start accepts. Automaton has 5021 states and 17035 transitions. Word has length 39 [2022-02-09 04:06:19,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:06:19,285 INFO L470 AbstractCegarLoop]: Abstraction has 5021 states and 17035 transitions. [2022-02-09 04:06:19,285 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:06:19,285 INFO L276 IsEmpty]: Start isEmpty. Operand 5021 states and 17035 transitions. [2022-02-09 04:06:19,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:06:19,293 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:06:19,293 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] [2022-02-09 04:06:19,293 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable271 [2022-02-09 04:06:19,293 INFO L402 AbstractCegarLoop]: === Iteration 273 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:06:19,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:06:19,294 INFO L85 PathProgramCache]: Analyzing trace with hash 2037694664, now seen corresponding path program 273 times [2022-02-09 04:06:19,294 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:06:19,294 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233264036] [2022-02-09 04:06:19,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:06:19,294 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:06:19,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:06:19,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:06:19,502 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:06:19,502 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233264036] [2022-02-09 04:06:19,502 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233264036] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:06:19,502 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:06:19,502 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:06:19,502 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445248427] [2022-02-09 04:06:19,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:06:19,502 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:06:19,502 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:06:19,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:06:19,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:06:19,502 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) [2022-02-09 04:06:22,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:06:22,235 INFO L93 Difference]: Finished difference Result 8871 states and 29524 transitions. [2022-02-09 04:06:22,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2022-02-09 04:06:22,235 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:06:22,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:06:22,253 INFO L225 Difference]: With dead ends: 8871 [2022-02-09 04:06:22,254 INFO L226 Difference]: Without dead ends: 8706 [2022-02-09 04:06:22,254 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2960 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=715, Invalid=8405, Unknown=0, NotChecked=0, Total=9120 [2022-02-09 04:06:22,254 INFO L933 BasicCegarLoop]: 242 mSDtfsCounter, 498 mSDsluCounter, 2951 mSDsCounter, 0 mSdLazyCounter, 3605 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s 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, 1.2s IncrementalHoareTripleChecker+Time [2022-02-09 04:06:22,254 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [498 Valid, 2672 Invalid, 3728 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 3605 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-02-09 04:06:22,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8706 states. [2022-02-09 04:06:22,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8706 to 5003. [2022-02-09 04:06:22,342 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) [2022-02-09 04:06:22,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5003 states to 5003 states and 16995 transitions. [2022-02-09 04:06:22,353 INFO L78 Accepts]: Start accepts. Automaton has 5003 states and 16995 transitions. Word has length 39 [2022-02-09 04:06:22,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:06:22,353 INFO L470 AbstractCegarLoop]: Abstraction has 5003 states and 16995 transitions. [2022-02-09 04:06:22,353 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:06:22,353 INFO L276 IsEmpty]: Start isEmpty. Operand 5003 states and 16995 transitions. [2022-02-09 04:06:22,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:06:22,360 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:06:22,361 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:06:22,361 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable272 [2022-02-09 04:06:22,361 INFO L402 AbstractCegarLoop]: === Iteration 274 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:06:22,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:06:22,361 INFO L85 PathProgramCache]: Analyzing trace with hash -190458718, now seen corresponding path program 274 times [2022-02-09 04:06:22,361 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:06:22,361 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318891861] [2022-02-09 04:06:22,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:06:22,361 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:06:22,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:06:22,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:06:22,571 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:06:22,571 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318891861] [2022-02-09 04:06:22,571 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318891861] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:06:22,571 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:06:22,571 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:06:22,571 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841082840] [2022-02-09 04:06:22,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:06:22,571 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:06:22,571 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:06:22,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:06:22,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:06:22,571 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) [2022-02-09 04:06:24,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:06:24,867 INFO L93 Difference]: Finished difference Result 6507 states and 21685 transitions. [2022-02-09 04:06:24,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2022-02-09 04:06:24,867 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 [2022-02-09 04:06:24,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:06:24,881 INFO L225 Difference]: With dead ends: 6507 [2022-02-09 04:06:24,881 INFO L226 Difference]: Without dead ends: 6373 [2022-02-09 04:06:24,882 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2186 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=579, Invalid=6561, Unknown=0, NotChecked=0, Total=7140 [2022-02-09 04:06:24,882 INFO L933 BasicCegarLoop]: 146 mSDtfsCounter, 388 mSDsluCounter, 1914 mSDsCounter, 0 mSdLazyCounter, 2808 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s 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, 0.9s IncrementalHoareTripleChecker+Time [2022-02-09 04:06:24,882 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [388 Valid, 1564 Invalid, 2904 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 2808 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-09 04:06:24,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6373 states. [2022-02-09 04:06:24,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6373 to 5016. [2022-02-09 04:06:24,957 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) [2022-02-09 04:06:24,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5016 states to 5016 states and 17038 transitions. [2022-02-09 04:06:24,969 INFO L78 Accepts]: Start accepts. Automaton has 5016 states and 17038 transitions. Word has length 39 [2022-02-09 04:06:24,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:06:24,969 INFO L470 AbstractCegarLoop]: Abstraction has 5016 states and 17038 transitions. [2022-02-09 04:06:24,969 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:06:24,969 INFO L276 IsEmpty]: Start isEmpty. Operand 5016 states and 17038 transitions. [2022-02-09 04:06:24,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:06:24,977 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:06:24,977 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] [2022-02-09 04:06:24,977 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable273 [2022-02-09 04:06:24,977 INFO L402 AbstractCegarLoop]: === Iteration 275 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:06:24,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:06:24,977 INFO L85 PathProgramCache]: Analyzing trace with hash 728024852, now seen corresponding path program 275 times [2022-02-09 04:06:24,977 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:06:24,977 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691553372] [2022-02-09 04:06:24,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:06:24,978 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:06:24,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:06:25,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:06:25,194 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:06:25,194 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691553372] [2022-02-09 04:06:25,194 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691553372] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:06:25,194 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:06:25,194 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:06:25,194 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081285886] [2022-02-09 04:06:25,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:06:25,194 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:06:25,195 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:06:25,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:06:25,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:06:25,195 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) [2022-02-09 04:06:26,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:06:26,838 INFO L93 Difference]: Finished difference Result 6279 states and 21136 transitions. [2022-02-09 04:06:26,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-02-09 04:06:26,838 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 [2022-02-09 04:06:26,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:06:26,850 INFO L225 Difference]: With dead ends: 6279 [2022-02-09 04:06:26,850 INFO L226 Difference]: Without dead ends: 6236 [2022-02-09 04:06:26,850 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1083 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=370, Invalid=3790, Unknown=0, NotChecked=0, Total=4160 [2022-02-09 04:06:26,850 INFO L933 BasicCegarLoop]: 134 mSDtfsCounter, 335 mSDsluCounter, 1701 mSDsCounter, 0 mSdLazyCounter, 2376 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.8s IncrementalHoareTripleChecker+Time [2022-02-09 04:06:26,851 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [335 Valid, 1360 Invalid, 2441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 2376 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-09 04:06:26,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6236 states. [2022-02-09 04:06:26,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6236 to 5022. [2022-02-09 04:06:26,914 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) [2022-02-09 04:06:26,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5022 states to 5022 states and 17051 transitions. [2022-02-09 04:06:26,924 INFO L78 Accepts]: Start accepts. Automaton has 5022 states and 17051 transitions. Word has length 39 [2022-02-09 04:06:26,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:06:26,924 INFO L470 AbstractCegarLoop]: Abstraction has 5022 states and 17051 transitions. [2022-02-09 04:06:26,924 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:06:26,924 INFO L276 IsEmpty]: Start isEmpty. Operand 5022 states and 17051 transitions. [2022-02-09 04:06:26,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:06:26,931 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:06:26,931 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:06:26,931 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable274 [2022-02-09 04:06:26,932 INFO L402 AbstractCegarLoop]: === Iteration 276 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:06:26,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:06:26,932 INFO L85 PathProgramCache]: Analyzing trace with hash 748173586, now seen corresponding path program 276 times [2022-02-09 04:06:26,932 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:06:26,932 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532898664] [2022-02-09 04:06:26,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:06:26,932 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:06:26,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:06:27,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:06:27,138 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:06:27,138 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532898664] [2022-02-09 04:06:27,138 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532898664] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:06:27,138 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:06:27,138 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:06:27,138 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041790674] [2022-02-09 04:06:27,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:06:27,138 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:06:27,138 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:06:27,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:06:27,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:06:27,138 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) [2022-02-09 04:06:28,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:06:28,794 INFO L93 Difference]: Finished difference Result 6239 states and 21053 transitions. [2022-02-09 04:06:28,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-02-09 04:06:28,794 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:06:28,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:06:28,808 INFO L225 Difference]: With dead ends: 6239 [2022-02-09 04:06:28,808 INFO L226 Difference]: Without dead ends: 6196 [2022-02-09 04:06:28,809 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 [2022-02-09 04:06:28,809 INFO L933 BasicCegarLoop]: 137 mSDtfsCounter, 341 mSDsluCounter, 1697 mSDsCounter, 0 mSdLazyCounter, 2379 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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 [2022-02-09 04:06:28,809 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] [2022-02-09 04:06:28,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6196 states. [2022-02-09 04:06:28,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6196 to 5018. [2022-02-09 04:06:28,901 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) [2022-02-09 04:06:28,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5018 states to 5018 states and 17041 transitions. [2022-02-09 04:06:28,912 INFO L78 Accepts]: Start accepts. Automaton has 5018 states and 17041 transitions. Word has length 39 [2022-02-09 04:06:28,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:06:28,912 INFO L470 AbstractCegarLoop]: Abstraction has 5018 states and 17041 transitions. [2022-02-09 04:06:28,912 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:06:28,912 INFO L276 IsEmpty]: Start isEmpty. Operand 5018 states and 17041 transitions. [2022-02-09 04:06:28,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:06:28,919 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:06:28,919 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:06:28,919 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable275 [2022-02-09 04:06:28,919 INFO L402 AbstractCegarLoop]: === Iteration 277 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:06:28,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:06:28,920 INFO L85 PathProgramCache]: Analyzing trace with hash 1900677074, now seen corresponding path program 277 times [2022-02-09 04:06:28,920 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:06:28,920 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503135174] [2022-02-09 04:06:28,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:06:28,920 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:06:28,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:06:29,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:06:29,127 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:06:29,127 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503135174] [2022-02-09 04:06:29,127 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503135174] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:06:29,127 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:06:29,127 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:06:29,127 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350482788] [2022-02-09 04:06:29,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:06:29,127 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:06:29,127 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:06:29,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:06:29,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:06:29,128 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) [2022-02-09 04:06:30,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:06:30,844 INFO L93 Difference]: Finished difference Result 6310 states and 21213 transitions. [2022-02-09 04:06:30,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-02-09 04:06:30,844 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 [2022-02-09 04:06:30,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:06:30,858 INFO L225 Difference]: With dead ends: 6310 [2022-02-09 04:06:30,858 INFO L226 Difference]: Without dead ends: 6250 [2022-02-09 04:06:30,859 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1223 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=401, Invalid=4155, Unknown=0, NotChecked=0, Total=4556 [2022-02-09 04:06:30,859 INFO L933 BasicCegarLoop]: 135 mSDtfsCounter, 347 mSDsluCounter, 1699 mSDsCounter, 0 mSdLazyCounter, 2386 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.8s IncrementalHoareTripleChecker+Time [2022-02-09 04:06:30,859 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [347 Valid, 1384 Invalid, 2461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 2386 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-09 04:06:30,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6250 states. [2022-02-09 04:06:30,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6250 to 5018. [2022-02-09 04:06:30,937 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) [2022-02-09 04:06:30,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5018 states to 5018 states and 17041 transitions. [2022-02-09 04:06:30,949 INFO L78 Accepts]: Start accepts. Automaton has 5018 states and 17041 transitions. Word has length 39 [2022-02-09 04:06:30,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:06:30,949 INFO L470 AbstractCegarLoop]: Abstraction has 5018 states and 17041 transitions. [2022-02-09 04:06:30,949 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) [2022-02-09 04:06:30,949 INFO L276 IsEmpty]: Start isEmpty. Operand 5018 states and 17041 transitions. [2022-02-09 04:06:30,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:06:30,957 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:06:30,957 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:06:30,957 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable276 [2022-02-09 04:06:30,957 INFO L402 AbstractCegarLoop]: === Iteration 278 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:06:30,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:06:30,957 INFO L85 PathProgramCache]: Analyzing trace with hash -178889468, now seen corresponding path program 278 times [2022-02-09 04:06:30,957 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:06:30,957 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299976847] [2022-02-09 04:06:30,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:06:30,957 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:06:30,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:06:31,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:06:31,172 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:06:31,172 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299976847] [2022-02-09 04:06:31,172 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299976847] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:06:31,172 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:06:31,172 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:06:31,172 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12798415] [2022-02-09 04:06:31,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:06:31,172 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:06:31,172 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:06:31,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:06:31,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:06:31,173 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) [2022-02-09 04:06:32,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:06:32,692 INFO L93 Difference]: Finished difference Result 6281 states and 21154 transitions. [2022-02-09 04:06:32,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-02-09 04:06:32,692 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 [2022-02-09 04:06:32,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:06:32,706 INFO L225 Difference]: With dead ends: 6281 [2022-02-09 04:06:32,706 INFO L226 Difference]: Without dead ends: 6205 [2022-02-09 04:06:32,707 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1038 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=358, Invalid=3548, Unknown=0, NotChecked=0, Total=3906 [2022-02-09 04:06:32,707 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 [2022-02-09 04:06:32,707 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] [2022-02-09 04:06:32,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6205 states. [2022-02-09 04:06:32,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6205 to 5026. [2022-02-09 04:06:32,785 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) [2022-02-09 04:06:32,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5026 states to 5026 states and 17057 transitions. [2022-02-09 04:06:32,796 INFO L78 Accepts]: Start accepts. Automaton has 5026 states and 17057 transitions. Word has length 39 [2022-02-09 04:06:32,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:06:32,796 INFO L470 AbstractCegarLoop]: Abstraction has 5026 states and 17057 transitions. [2022-02-09 04:06:32,796 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) [2022-02-09 04:06:32,796 INFO L276 IsEmpty]: Start isEmpty. Operand 5026 states and 17057 transitions. [2022-02-09 04:06:32,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:06:32,804 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:06:32,804 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] [2022-02-09 04:06:32,804 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable277 [2022-02-09 04:06:32,804 INFO L402 AbstractCegarLoop]: === Iteration 279 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:06:32,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:06:32,804 INFO L85 PathProgramCache]: Analyzing trace with hash -1196943080, now seen corresponding path program 279 times [2022-02-09 04:06:32,804 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:06:32,804 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510958884] [2022-02-09 04:06:32,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:06:32,804 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:06:32,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:06:33,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:06:33,014 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:06:33,014 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510958884] [2022-02-09 04:06:33,014 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510958884] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:06:33,014 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:06:33,014 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:06:33,015 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345240434] [2022-02-09 04:06:33,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:06:33,015 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:06:33,015 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:06:33,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:06:33,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:06:33,015 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) [2022-02-09 04:06:34,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:06:34,674 INFO L93 Difference]: Finished difference Result 6263 states and 21100 transitions. [2022-02-09 04:06:34,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-02-09 04:06:34,674 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:06:34,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:06:34,687 INFO L225 Difference]: With dead ends: 6263 [2022-02-09 04:06:34,687 INFO L226 Difference]: Without dead ends: 6193 [2022-02-09 04:06:34,688 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 [2022-02-09 04:06:34,688 INFO L933 BasicCegarLoop]: 137 mSDtfsCounter, 328 mSDsluCounter, 1721 mSDsCounter, 0 mSdLazyCounter, 2350 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.7s IncrementalHoareTripleChecker+Time [2022-02-09 04:06:34,688 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [328 Valid, 1407 Invalid, 2423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 2350 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-09 04:06:34,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6193 states. [2022-02-09 04:06:34,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6193 to 5014. [2022-02-09 04:06:34,756 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) [2022-02-09 04:06:34,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5014 states to 5014 states and 17027 transitions. [2022-02-09 04:06:34,766 INFO L78 Accepts]: Start accepts. Automaton has 5014 states and 17027 transitions. Word has length 39 [2022-02-09 04:06:34,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:06:34,766 INFO L470 AbstractCegarLoop]: Abstraction has 5014 states and 17027 transitions. [2022-02-09 04:06:34,766 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:06:34,766 INFO L276 IsEmpty]: Start isEmpty. Operand 5014 states and 17027 transitions. [2022-02-09 04:06:34,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:06:34,773 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:06:34,773 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:06:34,773 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable278 [2022-02-09 04:06:34,773 INFO L402 AbstractCegarLoop]: === Iteration 280 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:06:34,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:06:34,774 INFO L85 PathProgramCache]: Analyzing trace with hash -720555210, now seen corresponding path program 280 times [2022-02-09 04:06:34,774 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:06:34,774 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133344831] [2022-02-09 04:06:34,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:06:34,774 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:06:34,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:06:34,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:06:34,977 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:06:34,977 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133344831] [2022-02-09 04:06:34,977 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133344831] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:06:34,977 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:06:34,977 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:06:34,977 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380314430] [2022-02-09 04:06:34,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:06:34,977 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:06:34,977 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:06:34,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:06:34,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:06:34,977 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) [2022-02-09 04:06:37,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:06:37,245 INFO L93 Difference]: Finished difference Result 6506 states and 21713 transitions. [2022-02-09 04:06:37,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2022-02-09 04:06:37,245 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:06:37,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:06:37,258 INFO L225 Difference]: With dead ends: 6506 [2022-02-09 04:06:37,259 INFO L226 Difference]: Without dead ends: 6362 [2022-02-09 04:06:37,259 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2188 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=569, Invalid=6571, Unknown=0, NotChecked=0, Total=7140 [2022-02-09 04:06:37,259 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 [2022-02-09 04:06:37,259 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] [2022-02-09 04:06:37,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6362 states. [2022-02-09 04:06:37,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6362 to 5023. [2022-02-09 04:06:37,335 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) [2022-02-09 04:06:37,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5023 states to 5023 states and 17047 transitions. [2022-02-09 04:06:37,347 INFO L78 Accepts]: Start accepts. Automaton has 5023 states and 17047 transitions. Word has length 39 [2022-02-09 04:06:37,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:06:37,347 INFO L470 AbstractCegarLoop]: Abstraction has 5023 states and 17047 transitions. [2022-02-09 04:06:37,347 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) [2022-02-09 04:06:37,347 INFO L276 IsEmpty]: Start isEmpty. Operand 5023 states and 17047 transitions. [2022-02-09 04:06:37,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:06:37,357 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:06:37,357 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:06:37,357 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable279 [2022-02-09 04:06:37,357 INFO L402 AbstractCegarLoop]: === Iteration 281 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:06:37,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:06:37,357 INFO L85 PathProgramCache]: Analyzing trace with hash 2036992856, now seen corresponding path program 281 times [2022-02-09 04:06:37,357 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:06:37,357 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635682063] [2022-02-09 04:06:37,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:06:37,357 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:06:37,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:06:37,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:06:37,564 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:06:37,564 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635682063] [2022-02-09 04:06:37,564 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635682063] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:06:37,564 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:06:37,564 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:06:37,564 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440182441] [2022-02-09 04:06:37,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:06:37,564 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:06:37,564 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:06:37,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:06:37,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:06:37,564 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) [2022-02-09 04:06:39,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:06:39,168 INFO L93 Difference]: Finished difference Result 6320 states and 21252 transitions. [2022-02-09 04:06:39,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-02-09 04:06:39,168 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 [2022-02-09 04:06:39,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:06:39,182 INFO L225 Difference]: With dead ends: 6320 [2022-02-09 04:06:39,182 INFO L226 Difference]: Without dead ends: 6277 [2022-02-09 04:06:39,182 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 [2022-02-09 04:06:39,182 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 [2022-02-09 04:06:39,182 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] [2022-02-09 04:06:39,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6277 states. [2022-02-09 04:06:39,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6277 to 5032. [2022-02-09 04:06:39,263 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) [2022-02-09 04:06:39,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5032 states to 5032 states and 17068 transitions. [2022-02-09 04:06:39,275 INFO L78 Accepts]: Start accepts. Automaton has 5032 states and 17068 transitions. Word has length 39 [2022-02-09 04:06:39,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:06:39,275 INFO L470 AbstractCegarLoop]: Abstraction has 5032 states and 17068 transitions. [2022-02-09 04:06:39,275 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:06:39,275 INFO L276 IsEmpty]: Start isEmpty. Operand 5032 states and 17068 transitions. [2022-02-09 04:06:39,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:06:39,283 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:06:39,283 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] [2022-02-09 04:06:39,283 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable280 [2022-02-09 04:06:39,283 INFO L402 AbstractCegarLoop]: === Iteration 282 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:06:39,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:06:39,283 INFO L85 PathProgramCache]: Analyzing trace with hash -507867304, now seen corresponding path program 282 times [2022-02-09 04:06:39,283 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:06:39,284 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422169382] [2022-02-09 04:06:39,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:06:39,284 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:06:39,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:06:39,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:06:39,499 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:06:39,499 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422169382] [2022-02-09 04:06:39,499 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422169382] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:06:39,499 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:06:39,499 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:06:39,499 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149376960] [2022-02-09 04:06:39,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:06:39,499 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:06:39,500 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:06:39,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:06:39,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:06:39,500 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) [2022-02-09 04:06:41,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:06:41,143 INFO L93 Difference]: Finished difference Result 6228 states and 20986 transitions. [2022-02-09 04:06:41,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-02-09 04:06:41,144 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:06:41,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:06:41,157 INFO L225 Difference]: With dead ends: 6228 [2022-02-09 04:06:41,157 INFO L226 Difference]: Without dead ends: 6177 [2022-02-09 04:06:41,158 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1083 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=355, Invalid=3805, Unknown=0, NotChecked=0, Total=4160 [2022-02-09 04:06:41,158 INFO L933 BasicCegarLoop]: 146 mSDtfsCounter, 334 mSDsluCounter, 1756 mSDsCounter, 0 mSdLazyCounter, 2500 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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, 0.8s IncrementalHoareTripleChecker+Time [2022-02-09 04:06:41,158 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [334 Valid, 1450 Invalid, 2568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 2500 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-09 04:06:41,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6177 states. [2022-02-09 04:06:41,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6177 to 5026. [2022-02-09 04:06:41,253 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) [2022-02-09 04:06:41,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5026 states to 5026 states and 17052 transitions. [2022-02-09 04:06:41,264 INFO L78 Accepts]: Start accepts. Automaton has 5026 states and 17052 transitions. Word has length 39 [2022-02-09 04:06:41,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:06:41,264 INFO L470 AbstractCegarLoop]: Abstraction has 5026 states and 17052 transitions. [2022-02-09 04:06:41,264 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:06:41,264 INFO L276 IsEmpty]: Start isEmpty. Operand 5026 states and 17052 transitions. [2022-02-09 04:06:41,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:06:41,272 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:06:41,272 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:06:41,272 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable281 [2022-02-09 04:06:41,272 INFO L402 AbstractCegarLoop]: === Iteration 283 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:06:41,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:06:41,272 INFO L85 PathProgramCache]: Analyzing trace with hash 109351098, now seen corresponding path program 283 times [2022-02-09 04:06:41,272 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:06:41,272 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76271357] [2022-02-09 04:06:41,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:06:41,272 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:06:41,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:06:41,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:06:41,481 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:06:41,481 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76271357] [2022-02-09 04:06:41,481 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76271357] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:06:41,481 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:06:41,481 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:06:41,481 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056720018] [2022-02-09 04:06:41,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:06:41,482 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:06:41,482 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:06:41,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:06:41,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:06:41,482 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) [2022-02-09 04:06:43,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:06:43,139 INFO L93 Difference]: Finished difference Result 6386 states and 21401 transitions. [2022-02-09 04:06:43,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-02-09 04:06:43,139 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:06:43,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:06:43,153 INFO L225 Difference]: With dead ends: 6386 [2022-02-09 04:06:43,153 INFO L226 Difference]: Without dead ends: 6314 [2022-02-09 04:06:43,154 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1228 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=391, Invalid=4165, Unknown=0, NotChecked=0, Total=4556 [2022-02-09 04:06:43,154 INFO L933 BasicCegarLoop]: 138 mSDtfsCounter, 361 mSDsluCounter, 1701 mSDsCounter, 0 mSdLazyCounter, 2453 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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, 0.8s IncrementalHoareTripleChecker+Time [2022-02-09 04:06:43,154 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [361 Valid, 1388 Invalid, 2524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 2453 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-09 04:06:43,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6314 states. [2022-02-09 04:06:43,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6314 to 5021. [2022-02-09 04:06:43,230 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) [2022-02-09 04:06:43,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5021 states to 5021 states and 17039 transitions. [2022-02-09 04:06:43,241 INFO L78 Accepts]: Start accepts. Automaton has 5021 states and 17039 transitions. Word has length 39 [2022-02-09 04:06:43,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:06:43,241 INFO L470 AbstractCegarLoop]: Abstraction has 5021 states and 17039 transitions. [2022-02-09 04:06:43,241 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) [2022-02-09 04:06:43,242 INFO L276 IsEmpty]: Start isEmpty. Operand 5021 states and 17039 transitions. [2022-02-09 04:06:43,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:06:43,249 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:06:43,249 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:06:43,249 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable282 [2022-02-09 04:06:43,249 INFO L402 AbstractCegarLoop]: === Iteration 284 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:06:43,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:06:43,249 INFO L85 PathProgramCache]: Analyzing trace with hash -1906333102, now seen corresponding path program 284 times [2022-02-09 04:06:43,250 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:06:43,250 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543960833] [2022-02-09 04:06:43,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:06:43,250 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:06:43,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:06:43,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:06:43,461 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:06:43,461 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543960833] [2022-02-09 04:06:43,461 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543960833] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:06:43,461 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:06:43,461 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:06:43,461 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867468738] [2022-02-09 04:06:43,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:06:43,462 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:06:43,462 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:06:43,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:06:43,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:06:43,462 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) [2022-02-09 04:06:44,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:06:44,929 INFO L93 Difference]: Finished difference Result 6267 states and 21138 transitions. [2022-02-09 04:06:44,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-02-09 04:06:44,930 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 [2022-02-09 04:06:44,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:06:44,942 INFO L225 Difference]: With dead ends: 6267 [2022-02-09 04:06:44,942 INFO L226 Difference]: Without dead ends: 6191 [2022-02-09 04:06:44,942 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 994 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=348, Invalid=3434, Unknown=0, NotChecked=0, Total=3782 [2022-02-09 04:06:44,942 INFO L933 BasicCegarLoop]: 136 mSDtfsCounter, 307 mSDsluCounter, 1501 mSDsCounter, 0 mSdLazyCounter, 2164 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.7s IncrementalHoareTripleChecker+Time [2022-02-09 04:06:44,943 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [307 Valid, 1247 Invalid, 2227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 2164 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-09 04:06:44,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6191 states. [2022-02-09 04:06:45,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6191 to 5035. [2022-02-09 04:06:45,008 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) [2022-02-09 04:06:45,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5035 states to 5035 states and 17069 transitions. [2022-02-09 04:06:45,018 INFO L78 Accepts]: Start accepts. Automaton has 5035 states and 17069 transitions. Word has length 39 [2022-02-09 04:06:45,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:06:45,018 INFO L470 AbstractCegarLoop]: Abstraction has 5035 states and 17069 transitions. [2022-02-09 04:06:45,018 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) [2022-02-09 04:06:45,018 INFO L276 IsEmpty]: Start isEmpty. Operand 5035 states and 17069 transitions. [2022-02-09 04:06:45,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:06:45,025 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:06:45,025 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] [2022-02-09 04:06:45,025 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable283 [2022-02-09 04:06:45,025 INFO L402 AbstractCegarLoop]: === Iteration 285 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:06:45,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:06:45,025 INFO L85 PathProgramCache]: Analyzing trace with hash 840711860, now seen corresponding path program 285 times [2022-02-09 04:06:45,025 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:06:45,025 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60622504] [2022-02-09 04:06:45,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:06:45,025 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:06:45,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:06:45,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:06:45,233 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:06:45,233 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60622504] [2022-02-09 04:06:45,233 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60622504] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:06:45,233 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:06:45,233 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:06:45,233 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505107094] [2022-02-09 04:06:45,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:06:45,233 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:06:45,233 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:06:45,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:06:45,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:06:45,234 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) [2022-02-09 04:06:46,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:06:46,849 INFO L93 Difference]: Finished difference Result 6306 states and 21210 transitions. [2022-02-09 04:06:46,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-02-09 04:06:46,849 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 [2022-02-09 04:06:46,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:06:46,863 INFO L225 Difference]: With dead ends: 6306 [2022-02-09 04:06:46,863 INFO L226 Difference]: Without dead ends: 6215 [2022-02-09 04:06:46,864 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1084 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=366, Invalid=3794, Unknown=0, NotChecked=0, Total=4160 [2022-02-09 04:06:46,864 INFO L933 BasicCegarLoop]: 138 mSDtfsCounter, 336 mSDsluCounter, 1716 mSDsCounter, 0 mSdLazyCounter, 2405 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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, 0.8s IncrementalHoareTripleChecker+Time [2022-02-09 04:06:46,864 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [336 Valid, 1378 Invalid, 2472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 2405 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-09 04:06:46,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6215 states. [2022-02-09 04:06:46,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6215 to 5011. [2022-02-09 04:06:46,942 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) [2022-02-09 04:06:46,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5011 states to 5011 states and 17014 transitions. [2022-02-09 04:06:46,953 INFO L78 Accepts]: Start accepts. Automaton has 5011 states and 17014 transitions. Word has length 39 [2022-02-09 04:06:46,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:06:46,953 INFO L470 AbstractCegarLoop]: Abstraction has 5011 states and 17014 transitions. [2022-02-09 04:06:46,953 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:06:46,953 INFO L276 IsEmpty]: Start isEmpty. Operand 5011 states and 17014 transitions. [2022-02-09 04:06:46,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:06:46,961 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:06:46,961 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] [2022-02-09 04:06:46,961 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable284 [2022-02-09 04:06:46,961 INFO L402 AbstractCegarLoop]: === Iteration 286 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:06:46,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:06:46,961 INFO L85 PathProgramCache]: Analyzing trace with hash -1138992522, now seen corresponding path program 286 times [2022-02-09 04:06:46,961 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:06:46,961 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443429464] [2022-02-09 04:06:46,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:06:46,961 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:06:46,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:06:47,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:06:47,168 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:06:47,168 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443429464] [2022-02-09 04:06:47,169 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443429464] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:06:47,169 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:06:47,169 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:06:47,169 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10236520] [2022-02-09 04:06:47,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:06:47,169 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:06:47,169 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:06:47,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:06:47,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:06:47,169 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) [2022-02-09 04:06:50,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:06:50,016 INFO L93 Difference]: Finished difference Result 9529 states and 31445 transitions. [2022-02-09 04:06:50,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2022-02-09 04:06:50,017 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 [2022-02-09 04:06:50,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:06:50,035 INFO L225 Difference]: With dead ends: 9529 [2022-02-09 04:06:50,035 INFO L226 Difference]: Without dead ends: 9245 [2022-02-09 04:06:50,036 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2875 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=687, Invalid=8243, Unknown=0, NotChecked=0, Total=8930 [2022-02-09 04:06:50,036 INFO L933 BasicCegarLoop]: 268 mSDtfsCounter, 544 mSDsluCounter, 3407 mSDsCounter, 0 mSdLazyCounter, 4113 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s 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, 1.3s IncrementalHoareTripleChecker+Time [2022-02-09 04:06:50,036 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [544 Valid, 3006 Invalid, 4244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 4113 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-02-09 04:06:50,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9245 states. [2022-02-09 04:06:50,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9245 to 5218. [2022-02-09 04:06:50,126 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) [2022-02-09 04:06:50,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5218 states to 5218 states and 17730 transitions. [2022-02-09 04:06:50,137 INFO L78 Accepts]: Start accepts. Automaton has 5218 states and 17730 transitions. Word has length 39 [2022-02-09 04:06:50,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:06:50,137 INFO L470 AbstractCegarLoop]: Abstraction has 5218 states and 17730 transitions. [2022-02-09 04:06:50,137 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) [2022-02-09 04:06:50,137 INFO L276 IsEmpty]: Start isEmpty. Operand 5218 states and 17730 transitions. [2022-02-09 04:06:50,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:06:50,145 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:06:50,145 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] [2022-02-09 04:06:50,145 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable285 [2022-02-09 04:06:50,145 INFO L402 AbstractCegarLoop]: === Iteration 287 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:06:50,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:06:50,145 INFO L85 PathProgramCache]: Analyzing trace with hash 33659700, now seen corresponding path program 287 times [2022-02-09 04:06:50,145 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:06:50,145 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192761340] [2022-02-09 04:06:50,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:06:50,145 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:06:50,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:06:50,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:06:50,353 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:06:50,353 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192761340] [2022-02-09 04:06:50,353 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192761340] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:06:50,353 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:06:50,353 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:06:50,353 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575507331] [2022-02-09 04:06:50,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:06:50,354 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:06:50,354 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:06:50,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:06:50,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:06:50,354 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) [2022-02-09 04:06:53,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:06:53,094 INFO L93 Difference]: Finished difference Result 9655 states and 31861 transitions. [2022-02-09 04:06:53,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2022-02-09 04:06:53,094 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:06:53,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:06:53,115 INFO L225 Difference]: With dead ends: 9655 [2022-02-09 04:06:53,115 INFO L226 Difference]: Without dead ends: 9493 [2022-02-09 04:06:53,116 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2733 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=669, Invalid=7887, Unknown=0, NotChecked=0, Total=8556 [2022-02-09 04:06:53,117 INFO L933 BasicCegarLoop]: 254 mSDtfsCounter, 556 mSDsluCounter, 3090 mSDsCounter, 0 mSdLazyCounter, 3815 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s 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, 1.3s IncrementalHoareTripleChecker+Time [2022-02-09 04:06:53,117 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [556 Valid, 2803 Invalid, 3947 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 3815 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-02-09 04:06:53,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9493 states. [2022-02-09 04:06:53,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9493 to 5231. [2022-02-09 04:06:53,223 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) [2022-02-09 04:06:53,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5231 states to 5231 states and 17767 transitions. [2022-02-09 04:06:53,234 INFO L78 Accepts]: Start accepts. Automaton has 5231 states and 17767 transitions. Word has length 39 [2022-02-09 04:06:53,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:06:53,234 INFO L470 AbstractCegarLoop]: Abstraction has 5231 states and 17767 transitions. [2022-02-09 04:06:53,234 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:06:53,235 INFO L276 IsEmpty]: Start isEmpty. Operand 5231 states and 17767 transitions. [2022-02-09 04:06:53,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:06:53,242 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:06:53,242 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:06:53,242 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable286 [2022-02-09 04:06:53,242 INFO L402 AbstractCegarLoop]: === Iteration 288 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:06:53,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:06:53,243 INFO L85 PathProgramCache]: Analyzing trace with hash -34085180, now seen corresponding path program 288 times [2022-02-09 04:06:53,243 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:06:53,243 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428657286] [2022-02-09 04:06:53,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:06:53,243 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:06:53,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:06:53,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:06:53,451 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:06:53,451 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428657286] [2022-02-09 04:06:53,451 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428657286] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:06:53,451 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:06:53,451 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:06:53,451 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859877005] [2022-02-09 04:06:53,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:06:53,451 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:06:53,451 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:06:53,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:06:53,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:06:53,452 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) [2022-02-09 04:06:56,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:06:56,195 INFO L93 Difference]: Finished difference Result 9373 states and 31060 transitions. [2022-02-09 04:06:56,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2022-02-09 04:06:56,195 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 [2022-02-09 04:06:56,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:06:56,214 INFO L225 Difference]: With dead ends: 9373 [2022-02-09 04:06:56,215 INFO L226 Difference]: Without dead ends: 9222 [2022-02-09 04:06:56,216 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2733 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=650, Invalid=7906, Unknown=0, NotChecked=0, Total=8556 [2022-02-09 04:06:56,216 INFO L933 BasicCegarLoop]: 262 mSDtfsCounter, 535 mSDsluCounter, 3261 mSDsCounter, 0 mSdLazyCounter, 3969 mSolverCounterSat, 125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s 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, 1.3s IncrementalHoareTripleChecker+Time [2022-02-09 04:06:56,216 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [535 Valid, 2919 Invalid, 4094 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 3969 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-02-09 04:06:56,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9222 states. [2022-02-09 04:06:56,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9222 to 5208. [2022-02-09 04:06:56,308 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) [2022-02-09 04:06:56,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5208 states to 5208 states and 17687 transitions. [2022-02-09 04:06:56,354 INFO L78 Accepts]: Start accepts. Automaton has 5208 states and 17687 transitions. Word has length 39 [2022-02-09 04:06:56,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:06:56,354 INFO L470 AbstractCegarLoop]: Abstraction has 5208 states and 17687 transitions. [2022-02-09 04:06:56,354 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:06:56,354 INFO L276 IsEmpty]: Start isEmpty. Operand 5208 states and 17687 transitions. [2022-02-09 04:06:56,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:06:56,361 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:06:56,361 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:06:56,361 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable287 [2022-02-09 04:06:56,361 INFO L402 AbstractCegarLoop]: === Iteration 289 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:06:56,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:06:56,361 INFO L85 PathProgramCache]: Analyzing trace with hash -1961726938, now seen corresponding path program 289 times [2022-02-09 04:06:56,361 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:06:56,361 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230975854] [2022-02-09 04:06:56,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:06:56,361 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:06:56,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:06:56,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:06:56,582 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:06:56,582 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230975854] [2022-02-09 04:06:56,582 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230975854] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:06:56,582 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:06:56,582 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:06:56,582 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323316184] [2022-02-09 04:06:56,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:06:56,582 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:06:56,582 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:06:56,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:06:56,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:06:56,582 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) [2022-02-09 04:06:59,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:06:59,220 INFO L93 Difference]: Finished difference Result 9549 states and 31606 transitions. [2022-02-09 04:06:59,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2022-02-09 04:06:59,220 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:06:59,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:06:59,267 INFO L225 Difference]: With dead ends: 9549 [2022-02-09 04:06:59,267 INFO L226 Difference]: Without dead ends: 9409 [2022-02-09 04:06:59,267 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2595 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=633, Invalid=7557, Unknown=0, NotChecked=0, Total=8190 [2022-02-09 04:06:59,267 INFO L933 BasicCegarLoop]: 256 mSDtfsCounter, 545 mSDsluCounter, 3074 mSDsCounter, 0 mSdLazyCounter, 3807 mSolverCounterSat, 129 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s 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, 1.2s IncrementalHoareTripleChecker+Time [2022-02-09 04:06:59,267 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [545 Valid, 2788 Invalid, 3936 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [129 Valid, 3807 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-02-09 04:06:59,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9409 states. [2022-02-09 04:06:59,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9409 to 5159. [2022-02-09 04:06:59,362 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) [2022-02-09 04:06:59,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5159 states to 5159 states and 17522 transitions. [2022-02-09 04:06:59,374 INFO L78 Accepts]: Start accepts. Automaton has 5159 states and 17522 transitions. Word has length 39 [2022-02-09 04:06:59,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:06:59,374 INFO L470 AbstractCegarLoop]: Abstraction has 5159 states and 17522 transitions. [2022-02-09 04:06:59,374 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:06:59,375 INFO L276 IsEmpty]: Start isEmpty. Operand 5159 states and 17522 transitions. [2022-02-09 04:06:59,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:06:59,382 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:06:59,382 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:06:59,382 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable288 [2022-02-09 04:06:59,382 INFO L402 AbstractCegarLoop]: === Iteration 290 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:06:59,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:06:59,383 INFO L85 PathProgramCache]: Analyzing trace with hash -957970022, now seen corresponding path program 290 times [2022-02-09 04:06:59,383 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:06:59,383 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642987456] [2022-02-09 04:06:59,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:06:59,383 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:06:59,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:06:59,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:06:59,595 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:06:59,595 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642987456] [2022-02-09 04:06:59,595 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642987456] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:06:59,595 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:06:59,595 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:06:59,595 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365642733] [2022-02-09 04:06:59,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:06:59,595 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:06:59,595 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:06:59,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:06:59,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:06:59,595 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) [2022-02-09 04:07:00,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:07:00,784 INFO L93 Difference]: Finished difference Result 5660 states and 19032 transitions. [2022-02-09 04:07:00,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-02-09 04:07:00,784 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:07:00,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:07:00,796 INFO L225 Difference]: With dead ends: 5660 [2022-02-09 04:07:00,796 INFO L226 Difference]: Without dead ends: 5593 [2022-02-09 04:07:00,797 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 [2022-02-09 04:07:00,797 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 [2022-02-09 04:07:00,797 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] [2022-02-09 04:07:00,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5593 states. [2022-02-09 04:07:00,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5593 to 5171. [2022-02-09 04:07:00,868 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) [2022-02-09 04:07:00,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5171 states to 5171 states and 17548 transitions. [2022-02-09 04:07:00,880 INFO L78 Accepts]: Start accepts. Automaton has 5171 states and 17548 transitions. Word has length 39 [2022-02-09 04:07:00,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:07:00,880 INFO L470 AbstractCegarLoop]: Abstraction has 5171 states and 17548 transitions. [2022-02-09 04:07:00,880 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:07:00,880 INFO L276 IsEmpty]: Start isEmpty. Operand 5171 states and 17548 transitions. [2022-02-09 04:07:00,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:07:00,888 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:07:00,888 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:07:00,888 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable289 [2022-02-09 04:07:00,888 INFO L402 AbstractCegarLoop]: === Iteration 291 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:07:00,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:07:00,888 INFO L85 PathProgramCache]: Analyzing trace with hash -1088564870, now seen corresponding path program 291 times [2022-02-09 04:07:00,888 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:07:00,888 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776675587] [2022-02-09 04:07:00,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:07:00,889 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:07:00,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:07:01,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:07:01,120 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:07:01,120 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776675587] [2022-02-09 04:07:01,120 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776675587] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:07:01,120 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:07:01,120 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:07:01,120 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511132929] [2022-02-09 04:07:01,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:07:01,120 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:07:01,120 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:07:01,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:07:01,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:07:01,121 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) [2022-02-09 04:07:02,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:07:02,232 INFO L93 Difference]: Finished difference Result 5592 states and 18836 transitions. [2022-02-09 04:07:02,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-02-09 04:07:02,233 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:07:02,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:07:02,243 INFO L225 Difference]: With dead ends: 5592 [2022-02-09 04:07:02,243 INFO L226 Difference]: Without dead ends: 5529 [2022-02-09 04:07:02,244 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 [2022-02-09 04:07:02,244 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 [2022-02-09 04:07:02,244 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] [2022-02-09 04:07:02,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5529 states. [2022-02-09 04:07:02,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5529 to 5163. [2022-02-09 04:07:02,302 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) [2022-02-09 04:07:02,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5163 states to 5163 states and 17528 transitions. [2022-02-09 04:07:02,312 INFO L78 Accepts]: Start accepts. Automaton has 5163 states and 17528 transitions. Word has length 39 [2022-02-09 04:07:02,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:07:02,312 INFO L470 AbstractCegarLoop]: Abstraction has 5163 states and 17528 transitions. [2022-02-09 04:07:02,312 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) [2022-02-09 04:07:02,312 INFO L276 IsEmpty]: Start isEmpty. Operand 5163 states and 17528 transitions. [2022-02-09 04:07:02,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:07:02,319 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:07:02,319 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:07:02,319 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable290 [2022-02-09 04:07:02,319 INFO L402 AbstractCegarLoop]: === Iteration 292 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:07:02,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:07:02,320 INFO L85 PathProgramCache]: Analyzing trace with hash -1224243462, now seen corresponding path program 292 times [2022-02-09 04:07:02,320 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:07:02,320 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318920904] [2022-02-09 04:07:02,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:07:02,320 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:07:02,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:07:02,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:07:02,524 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:07:02,524 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318920904] [2022-02-09 04:07:02,524 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318920904] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:07:02,524 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:07:02,524 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:07:02,524 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212018104] [2022-02-09 04:07:02,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:07:02,524 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:07:02,524 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:07:02,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:07:02,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:07:02,525 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) [2022-02-09 04:07:04,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:07:04,099 INFO L93 Difference]: Finished difference Result 5838 states and 19469 transitions. [2022-02-09 04:07:04,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-02-09 04:07:04,100 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 [2022-02-09 04:07:04,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:07:04,111 INFO L225 Difference]: With dead ends: 5838 [2022-02-09 04:07:04,111 INFO L226 Difference]: Without dead ends: 5795 [2022-02-09 04:07:04,111 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1125 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=377, Invalid=3913, Unknown=0, NotChecked=0, Total=4290 [2022-02-09 04:07:04,111 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 [2022-02-09 04:07:04,111 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] [2022-02-09 04:07:04,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5795 states. [2022-02-09 04:07:04,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5795 to 5171. [2022-02-09 04:07:04,177 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) [2022-02-09 04:07:04,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5171 states to 5171 states and 17548 transitions. [2022-02-09 04:07:04,188 INFO L78 Accepts]: Start accepts. Automaton has 5171 states and 17548 transitions. Word has length 39 [2022-02-09 04:07:04,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:07:04,188 INFO L470 AbstractCegarLoop]: Abstraction has 5171 states and 17548 transitions. [2022-02-09 04:07:04,188 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:07:04,188 INFO L276 IsEmpty]: Start isEmpty. Operand 5171 states and 17548 transitions. [2022-02-09 04:07:04,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:07:04,195 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:07:04,195 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:07:04,196 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable291 [2022-02-09 04:07:04,196 INFO L402 AbstractCegarLoop]: === Iteration 293 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:07:04,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:07:04,196 INFO L85 PathProgramCache]: Analyzing trace with hash 1290125532, now seen corresponding path program 293 times [2022-02-09 04:07:04,196 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:07:04,196 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928121623] [2022-02-09 04:07:04,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:07:04,196 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:07:04,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:07:04,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:07:04,402 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:07:04,402 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928121623] [2022-02-09 04:07:04,402 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928121623] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:07:04,402 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:07:04,403 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:07:04,403 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673859366] [2022-02-09 04:07:04,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:07:04,403 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:07:04,403 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:07:04,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:07:04,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:07:04,403 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) [2022-02-09 04:07:05,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:07:05,927 INFO L93 Difference]: Finished difference Result 5794 states and 19351 transitions. [2022-02-09 04:07:05,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-02-09 04:07:05,927 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:07:05,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:07:05,938 INFO L225 Difference]: With dead ends: 5794 [2022-02-09 04:07:05,938 INFO L226 Difference]: Without dead ends: 5742 [2022-02-09 04:07:05,939 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 [2022-02-09 04:07:05,939 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 [2022-02-09 04:07:05,939 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] [2022-02-09 04:07:05,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5742 states. [2022-02-09 04:07:06,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5742 to 5163. [2022-02-09 04:07:06,027 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) [2022-02-09 04:07:06,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5163 states to 5163 states and 17528 transitions. [2022-02-09 04:07:06,039 INFO L78 Accepts]: Start accepts. Automaton has 5163 states and 17528 transitions. Word has length 39 [2022-02-09 04:07:06,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:07:06,039 INFO L470 AbstractCegarLoop]: Abstraction has 5163 states and 17528 transitions. [2022-02-09 04:07:06,039 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) [2022-02-09 04:07:06,039 INFO L276 IsEmpty]: Start isEmpty. Operand 5163 states and 17528 transitions. [2022-02-09 04:07:06,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:07:06,046 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:07:06,046 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] [2022-02-09 04:07:06,046 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable292 [2022-02-09 04:07:06,046 INFO L402 AbstractCegarLoop]: === Iteration 294 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:07:06,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:07:06,047 INFO L85 PathProgramCache]: Analyzing trace with hash -305759892, now seen corresponding path program 294 times [2022-02-09 04:07:06,047 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:07:06,047 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240768096] [2022-02-09 04:07:06,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:07:06,047 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:07:06,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:07:06,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:07:06,256 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:07:06,256 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240768096] [2022-02-09 04:07:06,256 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240768096] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:07:06,256 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:07:06,256 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:07:06,257 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702839664] [2022-02-09 04:07:06,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:07:06,257 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:07:06,257 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:07:06,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:07:06,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:07:06,257 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) [2022-02-09 04:07:07,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:07:07,439 INFO L93 Difference]: Finished difference Result 5720 states and 19110 transitions. [2022-02-09 04:07:07,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-02-09 04:07:07,439 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 [2022-02-09 04:07:07,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:07:07,450 INFO L225 Difference]: With dead ends: 5720 [2022-02-09 04:07:07,450 INFO L226 Difference]: Without dead ends: 5665 [2022-02-09 04:07:07,451 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 [2022-02-09 04:07:07,451 INFO L933 BasicCegarLoop]: 108 mSDtfsCounter, 276 mSDsluCounter, 1370 mSDsCounter, 0 mSdLazyCounter, 1852 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 04:07:07,451 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [276 Valid, 1133 Invalid, 1911 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 1852 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 04:07:07,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5665 states. [2022-02-09 04:07:07,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5665 to 5165. [2022-02-09 04:07:07,512 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) [2022-02-09 04:07:07,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5165 states to 5165 states and 17531 transitions. [2022-02-09 04:07:07,521 INFO L78 Accepts]: Start accepts. Automaton has 5165 states and 17531 transitions. Word has length 39 [2022-02-09 04:07:07,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:07:07,522 INFO L470 AbstractCegarLoop]: Abstraction has 5165 states and 17531 transitions. [2022-02-09 04:07:07,522 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:07:07,522 INFO L276 IsEmpty]: Start isEmpty. Operand 5165 states and 17531 transitions. [2022-02-09 04:07:07,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:07:07,529 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:07:07,529 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:07:07,529 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable293 [2022-02-09 04:07:07,529 INFO L402 AbstractCegarLoop]: === Iteration 295 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:07:07,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:07:07,529 INFO L85 PathProgramCache]: Analyzing trace with hash 866892330, now seen corresponding path program 295 times [2022-02-09 04:07:07,529 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:07:07,529 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043902214] [2022-02-09 04:07:07,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:07:07,529 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:07:07,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:07:07,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:07:07,735 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:07:07,735 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043902214] [2022-02-09 04:07:07,735 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043902214] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:07:07,735 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:07:07,735 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:07:07,735 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243989659] [2022-02-09 04:07:07,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:07:07,735 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:07:07,735 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:07:07,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:07:07,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:07:07,736 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) [2022-02-09 04:07:08,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:07:08,863 INFO L93 Difference]: Finished difference Result 5655 states and 18958 transitions. [2022-02-09 04:07:08,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-02-09 04:07:08,863 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 [2022-02-09 04:07:08,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:07:08,875 INFO L225 Difference]: With dead ends: 5655 [2022-02-09 04:07:08,875 INFO L226 Difference]: Without dead ends: 5609 [2022-02-09 04:07:08,876 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 [2022-02-09 04:07:08,876 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 04:07:08,876 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [265 Valid, 1133 Invalid, 1864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 1817 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 04:07:08,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5609 states. [2022-02-09 04:07:08,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5609 to 5169. [2022-02-09 04:07:08,949 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) [2022-02-09 04:07:08,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5169 states to 5169 states and 17539 transitions. [2022-02-09 04:07:08,960 INFO L78 Accepts]: Start accepts. Automaton has 5169 states and 17539 transitions. Word has length 39 [2022-02-09 04:07:08,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:07:08,960 INFO L470 AbstractCegarLoop]: Abstraction has 5169 states and 17539 transitions. [2022-02-09 04:07:08,960 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) [2022-02-09 04:07:08,960 INFO L276 IsEmpty]: Start isEmpty. Operand 5169 states and 17539 transitions. [2022-02-09 04:07:08,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:07:08,968 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:07:08,968 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:07:08,968 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable294 [2022-02-09 04:07:08,968 INFO L402 AbstractCegarLoop]: === Iteration 296 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:07:08,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:07:08,969 INFO L85 PathProgramCache]: Analyzing trace with hash 619426168, now seen corresponding path program 296 times [2022-02-09 04:07:08,969 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:07:08,969 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764252488] [2022-02-09 04:07:08,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:07:08,969 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:07:08,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:07:09,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:07:09,178 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:07:09,178 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764252488] [2022-02-09 04:07:09,179 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764252488] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:07:09,179 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:07:09,179 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:07:09,179 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54810389] [2022-02-09 04:07:09,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:07:09,179 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:07:09,179 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:07:09,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:07:09,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:07:09,179 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) [2022-02-09 04:07:10,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:07:10,398 INFO L93 Difference]: Finished difference Result 5619 states and 18879 transitions. [2022-02-09 04:07:10,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-02-09 04:07:10,398 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:07:10,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:07:10,409 INFO L225 Difference]: With dead ends: 5619 [2022-02-09 04:07:10,410 INFO L226 Difference]: Without dead ends: 5570 [2022-02-09 04:07:10,410 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 560 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=273, Invalid=2379, Unknown=0, NotChecked=0, Total=2652 [2022-02-09 04:07:10,410 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 [2022-02-09 04:07:10,410 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] [2022-02-09 04:07:10,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5570 states. [2022-02-09 04:07:10,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5570 to 5159. [2022-02-09 04:07:10,489 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) [2022-02-09 04:07:10,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5159 states to 5159 states and 17518 transitions. [2022-02-09 04:07:10,499 INFO L78 Accepts]: Start accepts. Automaton has 5159 states and 17518 transitions. Word has length 39 [2022-02-09 04:07:10,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:07:10,499 INFO L470 AbstractCegarLoop]: Abstraction has 5159 states and 17518 transitions. [2022-02-09 04:07:10,499 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) [2022-02-09 04:07:10,499 INFO L276 IsEmpty]: Start isEmpty. Operand 5159 states and 17518 transitions. [2022-02-09 04:07:10,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:07:10,506 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:07:10,506 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:07:10,506 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable295 [2022-02-09 04:07:10,506 INFO L402 AbstractCegarLoop]: === Iteration 297 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:07:10,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:07:10,506 INFO L85 PathProgramCache]: Analyzing trace with hash -2136665606, now seen corresponding path program 297 times [2022-02-09 04:07:10,506 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:07:10,506 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518667880] [2022-02-09 04:07:10,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:07:10,506 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:07:10,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:07:10,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:07:10,713 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:07:10,713 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518667880] [2022-02-09 04:07:10,713 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518667880] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:07:10,713 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:07:10,713 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:07:10,713 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251748669] [2022-02-09 04:07:10,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:07:10,713 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:07:10,714 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:07:10,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:07:10,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:07:10,714 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) [2022-02-09 04:07:11,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:07:11,859 INFO L93 Difference]: Finished difference Result 5632 states and 18972 transitions. [2022-02-09 04:07:11,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-02-09 04:07:11,860 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:07:11,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:07:11,871 INFO L225 Difference]: With dead ends: 5632 [2022-02-09 04:07:11,871 INFO L226 Difference]: Without dead ends: 5565 [2022-02-09 04:07:11,872 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 477 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=218, Invalid=2134, Unknown=0, NotChecked=0, Total=2352 [2022-02-09 04:07:11,872 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 [2022-02-09 04:07:11,872 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] [2022-02-09 04:07:11,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5565 states. [2022-02-09 04:07:11,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5565 to 5215. [2022-02-09 04:07:11,933 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) [2022-02-09 04:07:11,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5215 states to 5215 states and 17680 transitions. [2022-02-09 04:07:11,943 INFO L78 Accepts]: Start accepts. Automaton has 5215 states and 17680 transitions. Word has length 39 [2022-02-09 04:07:11,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:07:11,943 INFO L470 AbstractCegarLoop]: Abstraction has 5215 states and 17680 transitions. [2022-02-09 04:07:11,944 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:07:11,944 INFO L276 IsEmpty]: Start isEmpty. Operand 5215 states and 17680 transitions. [2022-02-09 04:07:11,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:07:11,950 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:07:11,951 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] [2022-02-09 04:07:11,951 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable296 [2022-02-09 04:07:11,951 INFO L402 AbstractCegarLoop]: === Iteration 298 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:07:11,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:07:11,951 INFO L85 PathProgramCache]: Analyzing trace with hash 2027706842, now seen corresponding path program 298 times [2022-02-09 04:07:11,951 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:07:11,951 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102021412] [2022-02-09 04:07:11,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:07:11,951 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:07:11,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:07:12,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:07:12,159 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:07:12,159 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102021412] [2022-02-09 04:07:12,159 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102021412] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:07:12,159 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:07:12,159 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:07:12,159 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935778898] [2022-02-09 04:07:12,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:07:12,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:07:12,159 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:07:12,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:07:12,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:07:12,159 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) [2022-02-09 04:07:13,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:07:13,237 INFO L93 Difference]: Finished difference Result 5628 states and 18956 transitions. [2022-02-09 04:07:13,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-02-09 04:07:13,237 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 [2022-02-09 04:07:13,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:07:13,248 INFO L225 Difference]: With dead ends: 5628 [2022-02-09 04:07:13,248 INFO L226 Difference]: Without dead ends: 5565 [2022-02-09 04:07:13,248 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 [2022-02-09 04:07:13,249 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 [2022-02-09 04:07:13,249 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] [2022-02-09 04:07:13,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5565 states. [2022-02-09 04:07:13,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5565 to 5247. [2022-02-09 04:07:13,309 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) [2022-02-09 04:07:13,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5247 states to 5247 states and 17764 transitions. [2022-02-09 04:07:13,319 INFO L78 Accepts]: Start accepts. Automaton has 5247 states and 17764 transitions. Word has length 39 [2022-02-09 04:07:13,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:07:13,319 INFO L470 AbstractCegarLoop]: Abstraction has 5247 states and 17764 transitions. [2022-02-09 04:07:13,319 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:07:13,319 INFO L276 IsEmpty]: Start isEmpty. Operand 5247 states and 17764 transitions. [2022-02-09 04:07:13,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:07:13,326 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:07:13,326 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:07:13,326 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable297 [2022-02-09 04:07:13,326 INFO L402 AbstractCegarLoop]: === Iteration 299 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:07:13,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:07:13,326 INFO L85 PathProgramCache]: Analyzing trace with hash 1497806394, now seen corresponding path program 299 times [2022-02-09 04:07:13,326 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:07:13,326 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760614090] [2022-02-09 04:07:13,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:07:13,326 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:07:13,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:07:13,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:07:13,535 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:07:13,535 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760614090] [2022-02-09 04:07:13,535 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760614090] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:07:13,535 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:07:13,535 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:07:13,535 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687924429] [2022-02-09 04:07:13,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:07:13,535 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:07:13,535 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:07:13,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:07:13,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:07:13,535 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) [2022-02-09 04:07:14,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:07:14,635 INFO L93 Difference]: Finished difference Result 5652 states and 19016 transitions. [2022-02-09 04:07:14,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-02-09 04:07:14,635 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:07:14,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:07:14,647 INFO L225 Difference]: With dead ends: 5652 [2022-02-09 04:07:14,647 INFO L226 Difference]: Without dead ends: 5529 [2022-02-09 04:07:14,647 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 [2022-02-09 04:07:14,648 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 [2022-02-09 04:07:14,648 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] [2022-02-09 04:07:14,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5529 states. [2022-02-09 04:07:14,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5529 to 5199. [2022-02-09 04:07:14,733 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) [2022-02-09 04:07:14,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5199 states to 5199 states and 17630 transitions. [2022-02-09 04:07:14,744 INFO L78 Accepts]: Start accepts. Automaton has 5199 states and 17630 transitions. Word has length 39 [2022-02-09 04:07:14,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:07:14,744 INFO L470 AbstractCegarLoop]: Abstraction has 5199 states and 17630 transitions. [2022-02-09 04:07:14,744 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:07:14,744 INFO L276 IsEmpty]: Start isEmpty. Operand 5199 states and 17630 transitions. [2022-02-09 04:07:14,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:07:14,752 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:07:14,752 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:07:14,752 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable298 [2022-02-09 04:07:14,752 INFO L402 AbstractCegarLoop]: === Iteration 300 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:07:14,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:07:14,753 INFO L85 PathProgramCache]: Analyzing trace with hash 779395224, now seen corresponding path program 300 times [2022-02-09 04:07:14,753 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:07:14,753 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478002198] [2022-02-09 04:07:14,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:07:14,753 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:07:14,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:07:14,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:07:14,965 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:07:14,965 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478002198] [2022-02-09 04:07:14,965 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478002198] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:07:14,965 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:07:14,965 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:07:14,965 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121483662] [2022-02-09 04:07:14,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:07:14,965 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:07:14,965 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:07:14,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:07:14,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:07:14,966 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) [2022-02-09 04:07:17,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:07:17,010 INFO L93 Difference]: Finished difference Result 8272 states and 27771 transitions. [2022-02-09 04:07:17,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-02-09 04:07:17,010 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 [2022-02-09 04:07:17,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:07:17,029 INFO L225 Difference]: With dead ends: 8272 [2022-02-09 04:07:17,029 INFO L226 Difference]: Without dead ends: 8166 [2022-02-09 04:07:17,030 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 [2022-02-09 04:07:17,030 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, 0.9s IncrementalHoareTripleChecker+Time [2022-02-09 04:07:17,030 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [542 Valid, 2206 Invalid, 3025 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 2906 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-09 04:07:17,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8166 states. [2022-02-09 04:07:17,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8166 to 5264. [2022-02-09 04:07:17,146 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) [2022-02-09 04:07:17,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5264 states to 5264 states and 17830 transitions. [2022-02-09 04:07:17,158 INFO L78 Accepts]: Start accepts. Automaton has 5264 states and 17830 transitions. Word has length 39 [2022-02-09 04:07:17,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:07:17,158 INFO L470 AbstractCegarLoop]: Abstraction has 5264 states and 17830 transitions. [2022-02-09 04:07:17,158 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:07:17,158 INFO L276 IsEmpty]: Start isEmpty. Operand 5264 states and 17830 transitions. [2022-02-09 04:07:17,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:07:17,166 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:07:17,166 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:07:17,166 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable299 [2022-02-09 04:07:17,166 INFO L402 AbstractCegarLoop]: === Iteration 301 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:07:17,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:07:17,167 INFO L85 PathProgramCache]: Analyzing trace with hash -1001203078, now seen corresponding path program 301 times [2022-02-09 04:07:17,167 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:07:17,167 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557208113] [2022-02-09 04:07:17,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:07:17,167 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:07:17,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:07:17,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:07:17,391 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:07:17,391 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557208113] [2022-02-09 04:07:17,391 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557208113] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:07:17,391 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:07:17,391 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:07:17,391 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733241671] [2022-02-09 04:07:17,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:07:17,391 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:07:17,391 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:07:17,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:07:17,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:07:17,391 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) [2022-02-09 04:07:19,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:07:19,743 INFO L93 Difference]: Finished difference Result 9058 states and 30537 transitions. [2022-02-09 04:07:19,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2022-02-09 04:07:19,743 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 [2022-02-09 04:07:19,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:07:19,792 INFO L225 Difference]: With dead ends: 9058 [2022-02-09 04:07:19,792 INFO L226 Difference]: Without dead ends: 9006 [2022-02-09 04:07:19,792 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2140 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=521, Invalid=6451, Unknown=0, NotChecked=0, Total=6972 [2022-02-09 04:07:19,792 INFO L933 BasicCegarLoop]: 240 mSDtfsCounter, 572 mSDsluCounter, 2676 mSDsCounter, 0 mSdLazyCounter, 3296 mSolverCounterSat, 125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s 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, 1.1s IncrementalHoareTripleChecker+Time [2022-02-09 04:07:19,792 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [572 Valid, 2598 Invalid, 3421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 3296 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-02-09 04:07:19,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9006 states. [2022-02-09 04:07:19,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9006 to 5234. [2022-02-09 04:07:19,880 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) [2022-02-09 04:07:19,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5234 states to 5234 states and 17735 transitions. [2022-02-09 04:07:19,892 INFO L78 Accepts]: Start accepts. Automaton has 5234 states and 17735 transitions. Word has length 39 [2022-02-09 04:07:19,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:07:19,893 INFO L470 AbstractCegarLoop]: Abstraction has 5234 states and 17735 transitions. [2022-02-09 04:07:19,893 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:07:19,893 INFO L276 IsEmpty]: Start isEmpty. Operand 5234 states and 17735 transitions. [2022-02-09 04:07:19,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:07:19,901 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:07:19,901 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] [2022-02-09 04:07:19,901 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable300 [2022-02-09 04:07:19,901 INFO L402 AbstractCegarLoop]: === Iteration 302 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:07:19,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:07:19,901 INFO L85 PathProgramCache]: Analyzing trace with hash 1697878794, now seen corresponding path program 302 times [2022-02-09 04:07:19,901 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:07:19,901 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146552723] [2022-02-09 04:07:19,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:07:19,901 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:07:19,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:07:20,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:07:20,110 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:07:20,110 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146552723] [2022-02-09 04:07:20,110 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146552723] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:07:20,110 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:07:20,110 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:07:20,110 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670303746] [2022-02-09 04:07:20,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:07:20,110 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:07:20,110 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:07:20,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:07:20,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:07:20,111 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) [2022-02-09 04:07:21,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:07:21,641 INFO L93 Difference]: Finished difference Result 7577 states and 25347 transitions. [2022-02-09 04:07:21,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-02-09 04:07:21,641 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 [2022-02-09 04:07:21,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:07:21,657 INFO L225 Difference]: With dead ends: 7577 [2022-02-09 04:07:21,657 INFO L226 Difference]: Without dead ends: 7522 [2022-02-09 04:07:21,657 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 785 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=319, Invalid=2987, Unknown=0, NotChecked=0, Total=3306 [2022-02-09 04:07:21,657 INFO L933 BasicCegarLoop]: 175 mSDtfsCounter, 409 mSDsluCounter, 2003 mSDsCounter, 0 mSdLazyCounter, 2420 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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, 0.8s IncrementalHoareTripleChecker+Time [2022-02-09 04:07:21,657 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [409 Valid, 1862 Invalid, 2486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 2420 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-09 04:07:21,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7522 states. [2022-02-09 04:07:21,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7522 to 5268. [2022-02-09 04:07:21,762 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) [2022-02-09 04:07:21,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5268 states to 5268 states and 17851 transitions. [2022-02-09 04:07:21,772 INFO L78 Accepts]: Start accepts. Automaton has 5268 states and 17851 transitions. Word has length 39 [2022-02-09 04:07:21,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:07:21,773 INFO L470 AbstractCegarLoop]: Abstraction has 5268 states and 17851 transitions. [2022-02-09 04:07:21,773 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) [2022-02-09 04:07:21,773 INFO L276 IsEmpty]: Start isEmpty. Operand 5268 states and 17851 transitions. [2022-02-09 04:07:21,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:07:21,780 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:07:21,780 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] [2022-02-09 04:07:21,780 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable301 [2022-02-09 04:07:21,780 INFO L402 AbstractCegarLoop]: === Iteration 303 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:07:21,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:07:21,781 INFO L85 PathProgramCache]: Analyzing trace with hash -1424436280, now seen corresponding path program 303 times [2022-02-09 04:07:21,781 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:07:21,781 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872455588] [2022-02-09 04:07:21,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:07:21,781 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:07:21,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:07:22,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:07:22,006 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:07:22,006 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872455588] [2022-02-09 04:07:22,006 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872455588] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:07:22,006 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:07:22,006 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:07:22,006 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316164232] [2022-02-09 04:07:22,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:07:22,006 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:07:22,006 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:07:22,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:07:22,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:07:22,006 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) [2022-02-09 04:07:23,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:07:23,739 INFO L93 Difference]: Finished difference Result 8290 states and 27819 transitions. [2022-02-09 04:07:23,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-02-09 04:07:23,740 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:07:23,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:07:23,759 INFO L225 Difference]: With dead ends: 8290 [2022-02-09 04:07:23,759 INFO L226 Difference]: Without dead ends: 8230 [2022-02-09 04:07:23,759 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1043 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=353, Invalid=3679, Unknown=0, NotChecked=0, Total=4032 [2022-02-09 04:07:23,760 INFO L933 BasicCegarLoop]: 215 mSDtfsCounter, 438 mSDsluCounter, 2401 mSDsCounter, 0 mSdLazyCounter, 2828 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s 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, 0.9s IncrementalHoareTripleChecker+Time [2022-02-09 04:07:23,760 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [438 Valid, 2304 Invalid, 2897 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 2828 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-09 04:07:23,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8230 states. [2022-02-09 04:07:23,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8230 to 5266. [2022-02-09 04:07:23,887 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) [2022-02-09 04:07:23,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5266 states to 5266 states and 17846 transitions. [2022-02-09 04:07:23,899 INFO L78 Accepts]: Start accepts. Automaton has 5266 states and 17846 transitions. Word has length 39 [2022-02-09 04:07:23,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:07:23,899 INFO L470 AbstractCegarLoop]: Abstraction has 5266 states and 17846 transitions. [2022-02-09 04:07:23,899 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) [2022-02-09 04:07:23,899 INFO L276 IsEmpty]: Start isEmpty. Operand 5266 states and 17846 transitions. [2022-02-09 04:07:23,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:07:23,907 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:07:23,907 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] [2022-02-09 04:07:23,907 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable302 [2022-02-09 04:07:23,907 INFO L402 AbstractCegarLoop]: === Iteration 304 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:07:23,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:07:23,907 INFO L85 PathProgramCache]: Analyzing trace with hash 993127414, now seen corresponding path program 304 times [2022-02-09 04:07:23,907 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:07:23,907 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875568929] [2022-02-09 04:07:23,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:07:23,907 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:07:23,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:07:24,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:07:24,118 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:07:24,118 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875568929] [2022-02-09 04:07:24,118 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875568929] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:07:24,118 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:07:24,118 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:07:24,118 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56909262] [2022-02-09 04:07:24,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:07:24,118 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:07:24,118 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:07:24,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:07:24,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:07:24,119 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) [2022-02-09 04:07:25,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:07:25,557 INFO L93 Difference]: Finished difference Result 7546 states and 25301 transitions. [2022-02-09 04:07:25,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-02-09 04:07:25,557 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:07:25,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:07:25,573 INFO L225 Difference]: With dead ends: 7546 [2022-02-09 04:07:25,574 INFO L226 Difference]: Without dead ends: 7455 [2022-02-09 04:07:25,574 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 [2022-02-09 04:07:25,574 INFO L933 BasicCegarLoop]: 182 mSDtfsCounter, 394 mSDsluCounter, 2029 mSDsCounter, 0 mSdLazyCounter, 2392 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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 [2022-02-09 04:07:25,574 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] [2022-02-09 04:07:25,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7455 states. [2022-02-09 04:07:25,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7455 to 5266. [2022-02-09 04:07:25,661 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) [2022-02-09 04:07:25,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5266 states to 5266 states and 17840 transitions. [2022-02-09 04:07:25,673 INFO L78 Accepts]: Start accepts. Automaton has 5266 states and 17840 transitions. Word has length 39 [2022-02-09 04:07:25,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:07:25,673 INFO L470 AbstractCegarLoop]: Abstraction has 5266 states and 17840 transitions. [2022-02-09 04:07:25,674 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) [2022-02-09 04:07:25,674 INFO L276 IsEmpty]: Start isEmpty. Operand 5266 states and 17840 transitions. [2022-02-09 04:07:25,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:07:25,682 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:07:25,682 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] [2022-02-09 04:07:25,682 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable303 [2022-02-09 04:07:25,682 INFO L402 AbstractCegarLoop]: === Iteration 305 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:07:25,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:07:25,682 INFO L85 PathProgramCache]: Analyzing trace with hash -509354792, now seen corresponding path program 305 times [2022-02-09 04:07:25,682 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:07:25,682 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106809690] [2022-02-09 04:07:25,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:07:25,682 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:07:25,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:07:25,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:07:25,907 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:07:25,907 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106809690] [2022-02-09 04:07:25,908 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106809690] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:07:25,908 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:07:25,908 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:07:25,908 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148870285] [2022-02-09 04:07:25,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:07:25,908 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:07:25,908 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:07:25,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:07:25,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:07:25,908 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) [2022-02-09 04:07:27,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:07:27,606 INFO L93 Difference]: Finished difference Result 8379 states and 28143 transitions. [2022-02-09 04:07:27,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-02-09 04:07:27,606 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:07:27,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:07:27,622 INFO L225 Difference]: With dead ends: 8379 [2022-02-09 04:07:27,623 INFO L226 Difference]: Without dead ends: 8263 [2022-02-09 04:07:27,623 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 [2022-02-09 04:07:27,623 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, 0.9s IncrementalHoareTripleChecker+Time [2022-02-09 04:07:27,623 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [431 Valid, 2494 Invalid, 3040 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 2968 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-09 04:07:27,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8263 states. [2022-02-09 04:07:27,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8263 to 5228. [2022-02-09 04:07:27,700 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) [2022-02-09 04:07:27,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5228 states to 5228 states and 17723 transitions. [2022-02-09 04:07:27,710 INFO L78 Accepts]: Start accepts. Automaton has 5228 states and 17723 transitions. Word has length 39 [2022-02-09 04:07:27,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:07:27,710 INFO L470 AbstractCegarLoop]: Abstraction has 5228 states and 17723 transitions. [2022-02-09 04:07:27,710 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:07:27,711 INFO L276 IsEmpty]: Start isEmpty. Operand 5228 states and 17723 transitions. [2022-02-09 04:07:27,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:07:27,718 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:07:27,718 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:07:27,718 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable304 [2022-02-09 04:07:27,718 INFO L402 AbstractCegarLoop]: === Iteration 306 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:07:27,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:07:27,718 INFO L85 PathProgramCache]: Analyzing trace with hash -921219652, now seen corresponding path program 306 times [2022-02-09 04:07:27,718 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:07:27,718 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451742110] [2022-02-09 04:07:27,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:07:27,718 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:07:27,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:07:27,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:07:27,925 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:07:27,925 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451742110] [2022-02-09 04:07:27,925 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451742110] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:07:27,925 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:07:27,925 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:07:27,925 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293614448] [2022-02-09 04:07:27,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:07:27,926 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:07:27,926 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:07:27,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:07:27,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:07:27,926 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) [2022-02-09 04:07:29,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:07:29,225 INFO L93 Difference]: Finished difference Result 5722 states and 19189 transitions. [2022-02-09 04:07:29,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-02-09 04:07:29,226 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:07:29,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:07:29,238 INFO L225 Difference]: With dead ends: 5722 [2022-02-09 04:07:29,238 INFO L226 Difference]: Without dead ends: 5655 [2022-02-09 04:07:29,239 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 752 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=298, Invalid=2894, Unknown=0, NotChecked=0, Total=3192 [2022-02-09 04:07:29,239 INFO L933 BasicCegarLoop]: 118 mSDtfsCounter, 253 mSDsluCounter, 1400 mSDsCounter, 0 mSdLazyCounter, 1890 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 04:07:29,239 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [253 Valid, 1209 Invalid, 1954 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 1890 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 04:07:29,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5655 states. [2022-02-09 04:07:29,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5655 to 5254. [2022-02-09 04:07:29,312 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) [2022-02-09 04:07:29,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5254 states to 5254 states and 17809 transitions. [2022-02-09 04:07:29,324 INFO L78 Accepts]: Start accepts. Automaton has 5254 states and 17809 transitions. Word has length 39 [2022-02-09 04:07:29,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:07:29,324 INFO L470 AbstractCegarLoop]: Abstraction has 5254 states and 17809 transitions. [2022-02-09 04:07:29,324 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:07:29,324 INFO L276 IsEmpty]: Start isEmpty. Operand 5254 states and 17809 transitions. [2022-02-09 04:07:29,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:07:29,332 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:07:29,332 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] [2022-02-09 04:07:29,332 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable305 [2022-02-09 04:07:29,333 INFO L402 AbstractCegarLoop]: === Iteration 307 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:07:29,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:07:29,333 INFO L85 PathProgramCache]: Analyzing trace with hash -1051814500, now seen corresponding path program 307 times [2022-02-09 04:07:29,333 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:07:29,333 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754295046] [2022-02-09 04:07:29,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:07:29,333 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:07:29,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:07:29,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:07:29,553 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:07:29,553 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754295046] [2022-02-09 04:07:29,553 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754295046] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:07:29,553 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:07:29,553 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:07:29,553 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100759756] [2022-02-09 04:07:29,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:07:29,553 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:07:29,553 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:07:29,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:07:29,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:07:29,553 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) [2022-02-09 04:07:30,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:07:30,807 INFO L93 Difference]: Finished difference Result 5654 states and 18989 transitions. [2022-02-09 04:07:30,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-02-09 04:07:30,807 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:07:30,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:07:30,818 INFO L225 Difference]: With dead ends: 5654 [2022-02-09 04:07:30,818 INFO L226 Difference]: Without dead ends: 5591 [2022-02-09 04:07:30,818 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 638 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=284, Invalid=2578, Unknown=0, NotChecked=0, Total=2862 [2022-02-09 04:07:30,818 INFO L933 BasicCegarLoop]: 105 mSDtfsCounter, 228 mSDsluCounter, 1273 mSDsCounter, 0 mSdLazyCounter, 1709 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 04:07:30,818 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [228 Valid, 1071 Invalid, 1770 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 1709 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 04:07:30,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5591 states. [2022-02-09 04:07:30,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5591 to 5254. [2022-02-09 04:07:30,882 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) [2022-02-09 04:07:30,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5254 states to 5254 states and 17805 transitions. [2022-02-09 04:07:30,893 INFO L78 Accepts]: Start accepts. Automaton has 5254 states and 17805 transitions. Word has length 39 [2022-02-09 04:07:30,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:07:30,893 INFO L470 AbstractCegarLoop]: Abstraction has 5254 states and 17805 transitions. [2022-02-09 04:07:30,893 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:07:30,893 INFO L276 IsEmpty]: Start isEmpty. Operand 5254 states and 17805 transitions. [2022-02-09 04:07:30,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:07:30,900 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:07:30,900 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:07:30,900 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable306 [2022-02-09 04:07:30,900 INFO L402 AbstractCegarLoop]: === Iteration 308 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:07:30,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:07:30,901 INFO L85 PathProgramCache]: Analyzing trace with hash -1187493092, now seen corresponding path program 308 times [2022-02-09 04:07:30,901 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:07:30,901 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855843338] [2022-02-09 04:07:30,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:07:30,901 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:07:30,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:07:31,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:07:31,129 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:07:31,129 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855843338] [2022-02-09 04:07:31,129 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855843338] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:07:31,129 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:07:31,129 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:07:31,129 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572281589] [2022-02-09 04:07:31,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:07:31,129 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:07:31,130 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:07:31,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:07:31,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:07:31,130 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) [2022-02-09 04:07:32,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:07:32,910 INFO L93 Difference]: Finished difference Result 5867 states and 19517 transitions. [2022-02-09 04:07:32,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-02-09 04:07:32,910 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 [2022-02-09 04:07:32,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:07:32,923 INFO L225 Difference]: With dead ends: 5867 [2022-02-09 04:07:32,923 INFO L226 Difference]: Without dead ends: 5824 [2022-02-09 04:07:32,923 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1426 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=439, Invalid=4673, Unknown=0, NotChecked=0, Total=5112 [2022-02-09 04:07:32,924 INFO L933 BasicCegarLoop]: 122 mSDtfsCounter, 341 mSDsluCounter, 1537 mSDsCounter, 0 mSdLazyCounter, 2200 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.7s IncrementalHoareTripleChecker+Time [2022-02-09 04:07:32,924 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [341 Valid, 1314 Invalid, 2289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 2200 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-09 04:07:32,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5824 states. [2022-02-09 04:07:33,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5824 to 5266. [2022-02-09 04:07:33,018 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) [2022-02-09 04:07:33,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5266 states to 5266 states and 17841 transitions. [2022-02-09 04:07:33,030 INFO L78 Accepts]: Start accepts. Automaton has 5266 states and 17841 transitions. Word has length 39 [2022-02-09 04:07:33,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:07:33,030 INFO L470 AbstractCegarLoop]: Abstraction has 5266 states and 17841 transitions. [2022-02-09 04:07:33,030 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:07:33,030 INFO L276 IsEmpty]: Start isEmpty. Operand 5266 states and 17841 transitions. [2022-02-09 04:07:33,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:07:33,038 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:07:33,038 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:07:33,038 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable307 [2022-02-09 04:07:33,039 INFO L402 AbstractCegarLoop]: === Iteration 309 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:07:33,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:07:33,039 INFO L85 PathProgramCache]: Analyzing trace with hash 1326875902, now seen corresponding path program 309 times [2022-02-09 04:07:33,039 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:07:33,039 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404601382] [2022-02-09 04:07:33,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:07:33,039 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:07:33,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:07:33,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:07:33,247 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:07:33,247 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404601382] [2022-02-09 04:07:33,247 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404601382] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:07:33,247 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:07:33,247 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:07:33,248 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563407438] [2022-02-09 04:07:33,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:07:33,248 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:07:33,248 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:07:33,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:07:33,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:07:33,248 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) [2022-02-09 04:07:34,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:07:34,981 INFO L93 Difference]: Finished difference Result 5847 states and 19459 transitions. [2022-02-09 04:07:34,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-02-09 04:07:34,981 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:07:34,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:07:34,994 INFO L225 Difference]: With dead ends: 5847 [2022-02-09 04:07:34,994 INFO L226 Difference]: Without dead ends: 5795 [2022-02-09 04:07:34,994 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1372 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=427, Invalid=4543, Unknown=0, NotChecked=0, Total=4970 [2022-02-09 04:07:34,995 INFO L933 BasicCegarLoop]: 119 mSDtfsCounter, 328 mSDsluCounter, 1496 mSDsCounter, 0 mSdLazyCounter, 2103 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.7s IncrementalHoareTripleChecker+Time [2022-02-09 04:07:34,995 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [328 Valid, 1282 Invalid, 2185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 2103 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-09 04:07:35,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5795 states. [2022-02-09 04:07:35,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5795 to 5258. [2022-02-09 04:07:35,070 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) [2022-02-09 04:07:35,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5258 states to 5258 states and 17821 transitions. [2022-02-09 04:07:35,082 INFO L78 Accepts]: Start accepts. Automaton has 5258 states and 17821 transitions. Word has length 39 [2022-02-09 04:07:35,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:07:35,082 INFO L470 AbstractCegarLoop]: Abstraction has 5258 states and 17821 transitions. [2022-02-09 04:07:35,082 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) [2022-02-09 04:07:35,082 INFO L276 IsEmpty]: Start isEmpty. Operand 5258 states and 17821 transitions. [2022-02-09 04:07:35,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:07:35,090 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:07:35,090 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] [2022-02-09 04:07:35,090 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable308 [2022-02-09 04:07:35,090 INFO L402 AbstractCegarLoop]: === Iteration 310 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:07:35,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:07:35,090 INFO L85 PathProgramCache]: Analyzing trace with hash -269009522, now seen corresponding path program 310 times [2022-02-09 04:07:35,091 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:07:35,091 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490048597] [2022-02-09 04:07:35,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:07:35,091 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:07:35,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:07:35,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:07:35,316 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:07:35,316 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490048597] [2022-02-09 04:07:35,316 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490048597] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:07:35,317 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:07:35,317 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:07:35,317 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440263972] [2022-02-09 04:07:35,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:07:35,317 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:07:35,317 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:07:35,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:07:35,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:07:35,317 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) [2022-02-09 04:07:36,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:07:36,637 INFO L93 Difference]: Finished difference Result 5783 states and 19267 transitions. [2022-02-09 04:07:36,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-02-09 04:07:36,637 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:07:36,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:07:36,649 INFO L225 Difference]: With dead ends: 5783 [2022-02-09 04:07:36,649 INFO L226 Difference]: Without dead ends: 5728 [2022-02-09 04:07:36,650 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 744 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=318, Invalid=2874, Unknown=0, NotChecked=0, Total=3192 [2022-02-09 04:07:36,650 INFO L933 BasicCegarLoop]: 106 mSDtfsCounter, 255 mSDsluCounter, 1330 mSDsCounter, 0 mSdLazyCounter, 1784 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 04:07:36,650 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [255 Valid, 1092 Invalid, 1848 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 1784 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 04:07:36,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5728 states. [2022-02-09 04:07:36,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5728 to 5260. [2022-02-09 04:07:36,723 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) [2022-02-09 04:07:36,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5260 states to 5260 states and 17824 transitions. [2022-02-09 04:07:36,734 INFO L78 Accepts]: Start accepts. Automaton has 5260 states and 17824 transitions. Word has length 39 [2022-02-09 04:07:36,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:07:36,734 INFO L470 AbstractCegarLoop]: Abstraction has 5260 states and 17824 transitions. [2022-02-09 04:07:36,734 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:07:36,734 INFO L276 IsEmpty]: Start isEmpty. Operand 5260 states and 17824 transitions. [2022-02-09 04:07:36,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:07:36,742 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:07:36,742 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:07:36,742 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable309 [2022-02-09 04:07:36,742 INFO L402 AbstractCegarLoop]: === Iteration 311 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:07:36,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:07:36,743 INFO L85 PathProgramCache]: Analyzing trace with hash 903642700, now seen corresponding path program 311 times [2022-02-09 04:07:36,743 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:07:36,743 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218817294] [2022-02-09 04:07:36,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:07:36,743 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:07:36,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:07:36,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:07:36,955 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:07:36,955 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218817294] [2022-02-09 04:07:36,955 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218817294] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:07:36,955 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:07:36,955 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:07:36,955 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417464612] [2022-02-09 04:07:36,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:07:36,955 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:07:36,955 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:07:36,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:07:36,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:07:36,956 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) [2022-02-09 04:07:38,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:07:38,206 INFO L93 Difference]: Finished difference Result 5718 states and 19115 transitions. [2022-02-09 04:07:38,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-02-09 04:07:38,207 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:07:38,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:07:38,217 INFO L225 Difference]: With dead ends: 5718 [2022-02-09 04:07:38,217 INFO L226 Difference]: Without dead ends: 5672 [2022-02-09 04:07:38,218 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 633 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=286, Invalid=2576, Unknown=0, NotChecked=0, Total=2862 [2022-02-09 04:07:38,218 INFO L933 BasicCegarLoop]: 104 mSDtfsCounter, 244 mSDsluCounter, 1328 mSDsCounter, 0 mSdLazyCounter, 1749 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 04:07:38,218 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [244 Valid, 1089 Invalid, 1799 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 1749 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 04:07:38,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5672 states. [2022-02-09 04:07:38,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5672 to 5264. [2022-02-09 04:07:38,284 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) [2022-02-09 04:07:38,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5264 states to 5264 states and 17832 transitions. [2022-02-09 04:07:38,294 INFO L78 Accepts]: Start accepts. Automaton has 5264 states and 17832 transitions. Word has length 39 [2022-02-09 04:07:38,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:07:38,294 INFO L470 AbstractCegarLoop]: Abstraction has 5264 states and 17832 transitions. [2022-02-09 04:07:38,294 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:07:38,294 INFO L276 IsEmpty]: Start isEmpty. Operand 5264 states and 17832 transitions. [2022-02-09 04:07:38,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:07:38,301 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:07:38,302 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] [2022-02-09 04:07:38,302 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable310 [2022-02-09 04:07:38,302 INFO L402 AbstractCegarLoop]: === Iteration 312 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:07:38,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:07:38,302 INFO L85 PathProgramCache]: Analyzing trace with hash 656176538, now seen corresponding path program 312 times [2022-02-09 04:07:38,302 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:07:38,302 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233383804] [2022-02-09 04:07:38,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:07:38,302 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:07:38,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:07:38,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:07:38,514 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:07:38,514 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233383804] [2022-02-09 04:07:38,514 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233383804] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:07:38,514 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:07:38,514 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:07:38,514 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444719132] [2022-02-09 04:07:38,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:07:38,514 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:07:38,514 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:07:38,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:07:38,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:07:38,514 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) [2022-02-09 04:07:39,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:07:39,796 INFO L93 Difference]: Finished difference Result 5682 states and 19036 transitions. [2022-02-09 04:07:39,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-02-09 04:07:39,796 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:07:39,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:07:39,808 INFO L225 Difference]: With dead ends: 5682 [2022-02-09 04:07:39,808 INFO L226 Difference]: Without dead ends: 5633 [2022-02-09 04:07:39,808 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 667 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=299, Invalid=2671, Unknown=0, NotChecked=0, Total=2970 [2022-02-09 04:07:39,808 INFO L933 BasicCegarLoop]: 104 mSDtfsCounter, 244 mSDsluCounter, 1302 mSDsCounter, 0 mSdLazyCounter, 1712 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 04:07:39,809 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [244 Valid, 1097 Invalid, 1768 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1712 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 04:07:39,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5633 states. [2022-02-09 04:07:39,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5633 to 5254. [2022-02-09 04:07:39,901 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) [2022-02-09 04:07:39,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5254 states to 5254 states and 17813 transitions. [2022-02-09 04:07:39,913 INFO L78 Accepts]: Start accepts. Automaton has 5254 states and 17813 transitions. Word has length 39 [2022-02-09 04:07:39,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:07:39,913 INFO L470 AbstractCegarLoop]: Abstraction has 5254 states and 17813 transitions. [2022-02-09 04:07:39,913 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:07:39,913 INFO L276 IsEmpty]: Start isEmpty. Operand 5254 states and 17813 transitions. [2022-02-09 04:07:39,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:07:39,920 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:07:39,920 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:07:39,920 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable311 [2022-02-09 04:07:39,920 INFO L402 AbstractCegarLoop]: === Iteration 313 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:07:39,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:07:39,921 INFO L85 PathProgramCache]: Analyzing trace with hash 2114715834, now seen corresponding path program 313 times [2022-02-09 04:07:39,921 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:07:39,921 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344566625] [2022-02-09 04:07:39,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:07:39,921 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:07:39,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:07:40,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:07:40,135 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:07:40,135 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344566625] [2022-02-09 04:07:40,135 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344566625] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:07:40,135 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:07:40,135 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:07:40,135 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645589435] [2022-02-09 04:07:40,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:07:40,135 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:07:40,135 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:07:40,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:07:40,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:07:40,136 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) [2022-02-09 04:07:41,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:07:41,397 INFO L93 Difference]: Finished difference Result 5671 states and 19049 transitions. [2022-02-09 04:07:41,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-02-09 04:07:41,397 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 [2022-02-09 04:07:41,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:07:41,408 INFO L225 Difference]: With dead ends: 5671 [2022-02-09 04:07:41,408 INFO L226 Difference]: Without dead ends: 5604 [2022-02-09 04:07:41,409 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 676 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=272, Invalid=2698, Unknown=0, NotChecked=0, Total=2970 [2022-02-09 04:07:41,409 INFO L933 BasicCegarLoop]: 124 mSDtfsCounter, 244 mSDsluCounter, 1424 mSDsCounter, 0 mSdLazyCounter, 1999 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 04:07:41,409 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [244 Valid, 1231 Invalid, 2052 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 1999 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 04:07:41,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5604 states. [2022-02-09 04:07:41,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5604 to 5272. [2022-02-09 04:07:41,470 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) [2022-02-09 04:07:41,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5272 states to 5272 states and 17855 transitions. [2022-02-09 04:07:41,480 INFO L78 Accepts]: Start accepts. Automaton has 5272 states and 17855 transitions. Word has length 39 [2022-02-09 04:07:41,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:07:41,480 INFO L470 AbstractCegarLoop]: Abstraction has 5272 states and 17855 transitions. [2022-02-09 04:07:41,480 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:07:41,480 INFO L276 IsEmpty]: Start isEmpty. Operand 5272 states and 17855 transitions. [2022-02-09 04:07:41,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:07:41,486 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:07:41,487 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:07:41,487 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable312 [2022-02-09 04:07:41,487 INFO L402 AbstractCegarLoop]: === Iteration 314 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:07:41,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:07:41,487 INFO L85 PathProgramCache]: Analyzing trace with hash -1822181254, now seen corresponding path program 314 times [2022-02-09 04:07:41,487 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:07:41,487 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005766889] [2022-02-09 04:07:41,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:07:41,487 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:07:41,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:07:41,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:07:41,692 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:07:41,692 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005766889] [2022-02-09 04:07:41,692 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005766889] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:07:41,692 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:07:41,692 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:07:41,692 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738384738] [2022-02-09 04:07:41,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:07:41,693 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:07:41,693 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:07:41,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:07:41,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:07:41,693 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) [2022-02-09 04:07:42,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:07:42,842 INFO L93 Difference]: Finished difference Result 5650 states and 18952 transitions. [2022-02-09 04:07:42,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-02-09 04:07:42,842 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:07:42,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:07:42,853 INFO L225 Difference]: With dead ends: 5650 [2022-02-09 04:07:42,853 INFO L226 Difference]: Without dead ends: 5607 [2022-02-09 04:07:42,854 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 539 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=245, Invalid=2305, Unknown=0, NotChecked=0, Total=2550 [2022-02-09 04:07:42,854 INFO L933 BasicCegarLoop]: 108 mSDtfsCounter, 233 mSDsluCounter, 1302 mSDsCounter, 0 mSdLazyCounter, 1846 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 04:07:42,854 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [233 Valid, 1077 Invalid, 1887 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1846 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 04:07:42,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5607 states. [2022-02-09 04:07:42,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5607 to 5290. [2022-02-09 04:07:42,922 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) [2022-02-09 04:07:42,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5290 states to 5290 states and 17894 transitions. [2022-02-09 04:07:42,933 INFO L78 Accepts]: Start accepts. Automaton has 5290 states and 17894 transitions. Word has length 39 [2022-02-09 04:07:42,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:07:42,934 INFO L470 AbstractCegarLoop]: Abstraction has 5290 states and 17894 transitions. [2022-02-09 04:07:42,934 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) [2022-02-09 04:07:42,934 INFO L276 IsEmpty]: Start isEmpty. Operand 5290 states and 17894 transitions. [2022-02-09 04:07:42,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:07:42,941 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:07:42,941 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:07:42,941 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable313 [2022-02-09 04:07:42,941 INFO L402 AbstractCegarLoop]: === Iteration 315 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:07:42,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:07:42,941 INFO L85 PathProgramCache]: Analyzing trace with hash -992650084, now seen corresponding path program 315 times [2022-02-09 04:07:42,941 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:07:42,941 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564099953] [2022-02-09 04:07:42,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:07:42,941 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:07:42,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:07:43,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:07:43,154 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:07:43,154 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564099953] [2022-02-09 04:07:43,154 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564099953] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:07:43,154 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:07:43,154 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:07:43,154 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818141938] [2022-02-09 04:07:43,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:07:43,154 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:07:43,154 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:07:43,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:07:43,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:07:43,155 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) [2022-02-09 04:07:44,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:07:44,296 INFO L93 Difference]: Finished difference Result 5599 states and 18829 transitions. [2022-02-09 04:07:44,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-02-09 04:07:44,297 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:07:44,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:07:44,307 INFO L225 Difference]: With dead ends: 5599 [2022-02-09 04:07:44,308 INFO L226 Difference]: Without dead ends: 5536 [2022-02-09 04:07:44,308 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 538 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=244, Invalid=2306, Unknown=0, NotChecked=0, Total=2550 [2022-02-09 04:07:44,308 INFO L933 BasicCegarLoop]: 108 mSDtfsCounter, 225 mSDsluCounter, 1283 mSDsCounter, 0 mSdLazyCounter, 1837 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 04:07:44,308 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [225 Valid, 1061 Invalid, 1883 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 1837 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 04:07:44,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5536 states. [2022-02-09 04:07:44,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5536 to 5272. [2022-02-09 04:07:44,385 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) [2022-02-09 04:07:44,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5272 states to 5272 states and 17849 transitions. [2022-02-09 04:07:44,395 INFO L78 Accepts]: Start accepts. Automaton has 5272 states and 17849 transitions. Word has length 39 [2022-02-09 04:07:44,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:07:44,395 INFO L470 AbstractCegarLoop]: Abstraction has 5272 states and 17849 transitions. [2022-02-09 04:07:44,395 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:07:44,395 INFO L276 IsEmpty]: Start isEmpty. Operand 5272 states and 17849 transitions. [2022-02-09 04:07:44,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:07:44,402 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:07:44,402 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:07:44,402 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable314 [2022-02-09 04:07:44,402 INFO L402 AbstractCegarLoop]: === Iteration 316 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:07:44,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:07:44,403 INFO L85 PathProgramCache]: Analyzing trace with hash -193876200, now seen corresponding path program 316 times [2022-02-09 04:07:44,403 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:07:44,403 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757740963] [2022-02-09 04:07:44,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:07:44,403 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:07:44,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:07:44,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:07:44,611 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:07:44,611 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757740963] [2022-02-09 04:07:44,611 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757740963] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:07:44,611 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:07:44,611 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:07:44,611 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630280361] [2022-02-09 04:07:44,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:07:44,611 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:07:44,611 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:07:44,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:07:44,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:07:44,612 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) [2022-02-09 04:07:46,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:07:46,255 INFO L93 Difference]: Finished difference Result 5767 states and 19268 transitions. [2022-02-09 04:07:46,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-02-09 04:07:46,256 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:07:46,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:07:46,267 INFO L225 Difference]: With dead ends: 5767 [2022-02-09 04:07:46,267 INFO L226 Difference]: Without dead ends: 5724 [2022-02-09 04:07:46,268 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1127 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=368, Invalid=3922, Unknown=0, NotChecked=0, Total=4290 [2022-02-09 04:07:46,268 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 [2022-02-09 04:07:46,268 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] [2022-02-09 04:07:46,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5724 states. [2022-02-09 04:07:46,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5724 to 5281. [2022-02-09 04:07:46,332 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) [2022-02-09 04:07:46,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5281 states to 5281 states and 17873 transitions. [2022-02-09 04:07:46,379 INFO L78 Accepts]: Start accepts. Automaton has 5281 states and 17873 transitions. Word has length 39 [2022-02-09 04:07:46,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:07:46,379 INFO L470 AbstractCegarLoop]: Abstraction has 5281 states and 17873 transitions. [2022-02-09 04:07:46,379 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) [2022-02-09 04:07:46,379 INFO L276 IsEmpty]: Start isEmpty. Operand 5281 states and 17873 transitions. [2022-02-09 04:07:46,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:07:46,386 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:07:46,386 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:07:46,386 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable315 [2022-02-09 04:07:46,386 INFO L402 AbstractCegarLoop]: === Iteration 317 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:07:46,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:07:46,386 INFO L85 PathProgramCache]: Analyzing trace with hash -1974474502, now seen corresponding path program 317 times [2022-02-09 04:07:46,386 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:07:46,386 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629026570] [2022-02-09 04:07:46,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:07:46,387 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:07:46,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:07:46,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:07:46,596 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:07:46,596 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629026570] [2022-02-09 04:07:46,596 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629026570] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:07:46,596 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:07:46,596 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:07:46,596 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573928707] [2022-02-09 04:07:46,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:07:46,597 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:07:46,597 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:07:46,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:07:46,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:07:46,597 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) [2022-02-09 04:07:48,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:07:48,227 INFO L93 Difference]: Finished difference Result 5762 states and 19249 transitions. [2022-02-09 04:07:48,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-02-09 04:07:48,228 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 [2022-02-09 04:07:48,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:07:48,238 INFO L225 Difference]: With dead ends: 5762 [2022-02-09 04:07:48,238 INFO L226 Difference]: Without dead ends: 5710 [2022-02-09 04:07:48,239 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 [2022-02-09 04:07:48,239 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 [2022-02-09 04:07:48,239 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] [2022-02-09 04:07:48,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5710 states. [2022-02-09 04:07:48,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5710 to 5275. [2022-02-09 04:07:48,301 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) [2022-02-09 04:07:48,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5275 states to 5275 states and 17857 transitions. [2022-02-09 04:07:48,311 INFO L78 Accepts]: Start accepts. Automaton has 5275 states and 17857 transitions. Word has length 39 [2022-02-09 04:07:48,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:07:48,311 INFO L470 AbstractCegarLoop]: Abstraction has 5275 states and 17857 transitions. [2022-02-09 04:07:48,311 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) [2022-02-09 04:07:48,311 INFO L276 IsEmpty]: Start isEmpty. Operand 5275 states and 17857 transitions. [2022-02-09 04:07:48,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:07:48,319 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:07:48,319 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:07:48,319 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable316 [2022-02-09 04:07:48,319 INFO L402 AbstractCegarLoop]: === Iteration 318 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:07:48,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:07:48,319 INFO L85 PathProgramCache]: Analyzing trace with hash -1731295430, now seen corresponding path program 318 times [2022-02-09 04:07:48,319 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:07:48,319 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053333187] [2022-02-09 04:07:48,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:07:48,319 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:07:48,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:07:48,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:07:48,552 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:07:48,552 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053333187] [2022-02-09 04:07:48,552 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053333187] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:07:48,552 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:07:48,552 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:07:48,552 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272025265] [2022-02-09 04:07:48,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:07:48,552 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:07:48,552 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:07:48,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:07:48,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:07:48,552 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) [2022-02-09 04:07:49,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:07:49,725 INFO L93 Difference]: Finished difference Result 5746 states and 19166 transitions. [2022-02-09 04:07:49,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-02-09 04:07:49,725 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:07:49,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:07:49,737 INFO L225 Difference]: With dead ends: 5746 [2022-02-09 04:07:49,738 INFO L226 Difference]: Without dead ends: 5703 [2022-02-09 04:07:49,738 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 [2022-02-09 04:07:49,738 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 [2022-02-09 04:07:49,738 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] [2022-02-09 04:07:49,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5703 states. [2022-02-09 04:07:49,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5703 to 5284. [2022-02-09 04:07:49,804 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) [2022-02-09 04:07:49,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5284 states to 5284 states and 17878 transitions. [2022-02-09 04:07:49,816 INFO L78 Accepts]: Start accepts. Automaton has 5284 states and 17878 transitions. Word has length 39 [2022-02-09 04:07:49,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:07:49,816 INFO L470 AbstractCegarLoop]: Abstraction has 5284 states and 17878 transitions. [2022-02-09 04:07:49,817 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) [2022-02-09 04:07:49,817 INFO L276 IsEmpty]: Start isEmpty. Operand 5284 states and 17878 transitions. [2022-02-09 04:07:49,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:07:49,825 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:07:49,825 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:07:49,825 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable317 [2022-02-09 04:07:49,825 INFO L402 AbstractCegarLoop]: === Iteration 319 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:07:49,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:07:49,826 INFO L85 PathProgramCache]: Analyzing trace with hash 18811706, now seen corresponding path program 319 times [2022-02-09 04:07:49,826 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:07:49,826 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899356268] [2022-02-09 04:07:49,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:07:49,826 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:07:49,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:07:50,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:07:50,033 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:07:50,033 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899356268] [2022-02-09 04:07:50,033 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899356268] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:07:50,033 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:07:50,033 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:07:50,033 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170693237] [2022-02-09 04:07:50,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:07:50,033 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:07:50,033 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:07:50,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:07:50,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:07:50,034 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) [2022-02-09 04:07:51,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:07:51,261 INFO L93 Difference]: Finished difference Result 5709 states and 19080 transitions. [2022-02-09 04:07:51,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-02-09 04:07:51,261 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:07:51,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:07:51,272 INFO L225 Difference]: With dead ends: 5709 [2022-02-09 04:07:51,272 INFO L226 Difference]: Without dead ends: 5658 [2022-02-09 04:07:51,272 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 605 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=262, Invalid=2494, Unknown=0, NotChecked=0, Total=2756 [2022-02-09 04:07:51,272 INFO L933 BasicCegarLoop]: 107 mSDtfsCounter, 244 mSDsluCounter, 1330 mSDsCounter, 0 mSdLazyCounter, 1878 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 04:07:51,272 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [244 Valid, 1078 Invalid, 1928 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 1878 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 04:07:51,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5658 states. [2022-02-09 04:07:51,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5658 to 5278. [2022-02-09 04:07:51,333 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) [2022-02-09 04:07:51,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5278 states to 5278 states and 17862 transitions. [2022-02-09 04:07:51,344 INFO L78 Accepts]: Start accepts. Automaton has 5278 states and 17862 transitions. Word has length 39 [2022-02-09 04:07:51,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:07:51,344 INFO L470 AbstractCegarLoop]: Abstraction has 5278 states and 17862 transitions. [2022-02-09 04:07:51,344 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:07:51,344 INFO L276 IsEmpty]: Start isEmpty. Operand 5278 states and 17862 transitions. [2022-02-09 04:07:51,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:07:51,352 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:07:51,352 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:07:51,352 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable318 [2022-02-09 04:07:51,352 INFO L402 AbstractCegarLoop]: === Iteration 320 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:07:51,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:07:51,352 INFO L85 PathProgramCache]: Analyzing trace with hash 636030108, now seen corresponding path program 320 times [2022-02-09 04:07:51,352 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:07:51,352 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253202449] [2022-02-09 04:07:51,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:07:51,354 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:07:51,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:07:51,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:07:51,567 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:07:51,568 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253202449] [2022-02-09 04:07:51,568 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253202449] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:07:51,568 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:07:51,568 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:07:51,568 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265382045] [2022-02-09 04:07:51,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:07:51,568 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:07:51,568 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:07:51,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:07:51,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:07:51,568 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) [2022-02-09 04:07:52,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:07:52,704 INFO L93 Difference]: Finished difference Result 5681 states and 19009 transitions. [2022-02-09 04:07:52,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-02-09 04:07:52,705 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 [2022-02-09 04:07:52,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:07:52,716 INFO L225 Difference]: With dead ends: 5681 [2022-02-09 04:07:52,716 INFO L226 Difference]: Without dead ends: 5635 [2022-02-09 04:07:52,717 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 505 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=234, Invalid=2216, Unknown=0, NotChecked=0, Total=2450 [2022-02-09 04:07:52,717 INFO L933 BasicCegarLoop]: 107 mSDtfsCounter, 234 mSDsluCounter, 1324 mSDsCounter, 0 mSdLazyCounter, 1869 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 04:07:52,717 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [234 Valid, 1076 Invalid, 1907 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1869 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 04:07:52,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5635 states. [2022-02-09 04:07:52,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5635 to 5285. [2022-02-09 04:07:52,782 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) [2022-02-09 04:07:52,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5285 states to 5285 states and 17877 transitions. [2022-02-09 04:07:52,791 INFO L78 Accepts]: Start accepts. Automaton has 5285 states and 17877 transitions. Word has length 39 [2022-02-09 04:07:52,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:07:52,792 INFO L470 AbstractCegarLoop]: Abstraction has 5285 states and 17877 transitions. [2022-02-09 04:07:52,792 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:07:52,792 INFO L276 IsEmpty]: Start isEmpty. Operand 5285 states and 17877 transitions. [2022-02-09 04:07:52,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:07:52,813 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:07:52,813 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:07:52,813 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable319 [2022-02-09 04:07:52,813 INFO L402 AbstractCegarLoop]: === Iteration 321 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:07:52,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:07:52,813 INFO L85 PathProgramCache]: Analyzing trace with hash -799037382, now seen corresponding path program 321 times [2022-02-09 04:07:52,813 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:07:52,813 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256688729] [2022-02-09 04:07:52,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:07:52,813 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:07:52,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:07:53,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:07:53,044 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:07:53,044 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256688729] [2022-02-09 04:07:53,044 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256688729] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:07:53,044 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:07:53,044 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:07:53,044 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948290615] [2022-02-09 04:07:53,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:07:53,045 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:07:53,045 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:07:53,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:07:53,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:07:53,045 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) [2022-02-09 04:07:54,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:07:54,212 INFO L93 Difference]: Finished difference Result 5641 states and 18915 transitions. [2022-02-09 04:07:54,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-02-09 04:07:54,212 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:07:54,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:07:54,223 INFO L225 Difference]: With dead ends: 5641 [2022-02-09 04:07:54,223 INFO L226 Difference]: Without dead ends: 5580 [2022-02-09 04:07:54,224 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 569 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=253, Invalid=2399, Unknown=0, NotChecked=0, Total=2652 [2022-02-09 04:07:54,224 INFO L933 BasicCegarLoop]: 108 mSDtfsCounter, 240 mSDsluCounter, 1311 mSDsCounter, 0 mSdLazyCounter, 1861 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 04:07:54,224 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [240 Valid, 1074 Invalid, 1906 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 1861 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 04:07:54,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5580 states. [2022-02-09 04:07:54,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5580 to 5269. [2022-02-09 04:07:54,282 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) [2022-02-09 04:07:54,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5269 states to 5269 states and 17845 transitions. [2022-02-09 04:07:54,293 INFO L78 Accepts]: Start accepts. Automaton has 5269 states and 17845 transitions. Word has length 39 [2022-02-09 04:07:54,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:07:54,293 INFO L470 AbstractCegarLoop]: Abstraction has 5269 states and 17845 transitions. [2022-02-09 04:07:54,293 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:07:54,293 INFO L276 IsEmpty]: Start isEmpty. Operand 5269 states and 17845 transitions. [2022-02-09 04:07:54,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:07:54,300 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:07:54,300 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:07:54,300 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable320 [2022-02-09 04:07:54,300 INFO L402 AbstractCegarLoop]: === Iteration 322 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:07:54,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:07:54,300 INFO L85 PathProgramCache]: Analyzing trace with hash 1208759772, now seen corresponding path program 322 times [2022-02-09 04:07:54,300 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:07:54,300 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490446505] [2022-02-09 04:07:54,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:07:54,300 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:07:54,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:07:54,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:07:54,507 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:07:54,507 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490446505] [2022-02-09 04:07:54,507 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490446505] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:07:54,507 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:07:54,507 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:07:54,507 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729428267] [2022-02-09 04:07:54,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:07:54,507 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:07:54,507 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:07:54,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:07:54,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:07:54,507 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) [2022-02-09 04:07:55,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:07:55,673 INFO L93 Difference]: Finished difference Result 5636 states and 18933 transitions. [2022-02-09 04:07:55,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-02-09 04:07:55,673 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:07:55,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:07:55,683 INFO L225 Difference]: With dead ends: 5636 [2022-02-09 04:07:55,683 INFO L226 Difference]: Without dead ends: 5573 [2022-02-09 04:07:55,684 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 [2022-02-09 04:07:55,684 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 [2022-02-09 04:07:55,684 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] [2022-02-09 04:07:55,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5573 states. [2022-02-09 04:07:55,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5573 to 5273. [2022-02-09 04:07:55,739 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) [2022-02-09 04:07:55,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5273 states to 5273 states and 17855 transitions. [2022-02-09 04:07:55,748 INFO L78 Accepts]: Start accepts. Automaton has 5273 states and 17855 transitions. Word has length 39 [2022-02-09 04:07:55,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:07:55,748 INFO L470 AbstractCegarLoop]: Abstraction has 5273 states and 17855 transitions. [2022-02-09 04:07:55,748 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:07:55,748 INFO L276 IsEmpty]: Start isEmpty. Operand 5273 states and 17855 transitions. [2022-02-09 04:07:55,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:07:55,755 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:07:55,755 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] [2022-02-09 04:07:55,755 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable321 [2022-02-09 04:07:55,755 INFO L402 AbstractCegarLoop]: === Iteration 323 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:07:55,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:07:55,756 INFO L85 PathProgramCache]: Analyzing trace with hash 963267674, now seen corresponding path program 323 times [2022-02-09 04:07:55,756 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:07:55,756 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756369957] [2022-02-09 04:07:55,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:07:55,756 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:07:55,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:07:55,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:07:55,965 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:07:55,965 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756369957] [2022-02-09 04:07:55,965 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756369957] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:07:55,965 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:07:55,965 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:07:55,965 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653735637] [2022-02-09 04:07:55,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:07:55,965 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:07:55,965 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:07:55,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:07:55,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:07:55,966 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) [2022-02-09 04:07:57,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:07:57,104 INFO L93 Difference]: Finished difference Result 5675 states and 19022 transitions. [2022-02-09 04:07:57,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-02-09 04:07:57,105 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:07:57,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:07:57,115 INFO L225 Difference]: With dead ends: 5675 [2022-02-09 04:07:57,116 INFO L226 Difference]: Without dead ends: 5632 [2022-02-09 04:07:57,116 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 [2022-02-09 04:07:57,116 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 [2022-02-09 04:07:57,116 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] [2022-02-09 04:07:57,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5632 states. [2022-02-09 04:07:57,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5632 to 5291. [2022-02-09 04:07:57,176 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) [2022-02-09 04:07:57,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5291 states to 5291 states and 17894 transitions. [2022-02-09 04:07:57,186 INFO L78 Accepts]: Start accepts. Automaton has 5291 states and 17894 transitions. Word has length 39 [2022-02-09 04:07:57,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:07:57,186 INFO L470 AbstractCegarLoop]: Abstraction has 5291 states and 17894 transitions. [2022-02-09 04:07:57,186 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:07:57,187 INFO L276 IsEmpty]: Start isEmpty. Operand 5291 states and 17894 transitions. [2022-02-09 04:07:57,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:07:57,210 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:07:57,210 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] [2022-02-09 04:07:57,210 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable322 [2022-02-09 04:07:57,210 INFO L402 AbstractCegarLoop]: === Iteration 324 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:07:57,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:07:57,210 INFO L85 PathProgramCache]: Analyzing trace with hash 1792798844, now seen corresponding path program 324 times [2022-02-09 04:07:57,210 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:07:57,210 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466265281] [2022-02-09 04:07:57,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:07:57,211 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:07:57,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:07:57,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:07:57,423 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:07:57,423 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466265281] [2022-02-09 04:07:57,423 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466265281] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:07:57,423 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:07:57,424 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:07:57,424 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467979390] [2022-02-09 04:07:57,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:07:57,424 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:07:57,424 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:07:57,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:07:57,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:07:57,424 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) [2022-02-09 04:07:58,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:07:58,571 INFO L93 Difference]: Finished difference Result 5606 states and 18848 transitions. [2022-02-09 04:07:58,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-02-09 04:07:58,571 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:07:58,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:07:58,582 INFO L225 Difference]: With dead ends: 5606 [2022-02-09 04:07:58,582 INFO L226 Difference]: Without dead ends: 5543 [2022-02-09 04:07:58,583 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 507 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=232, Invalid=2218, Unknown=0, NotChecked=0, Total=2450 [2022-02-09 04:07:58,583 INFO L933 BasicCegarLoop]: 113 mSDtfsCounter, 214 mSDsluCounter, 1336 mSDsCounter, 0 mSdLazyCounter, 1903 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 04:07:58,583 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [214 Valid, 1104 Invalid, 1943 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1903 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 04:07:58,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5543 states. [2022-02-09 04:07:58,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5543 to 5273. [2022-02-09 04:07:58,642 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) [2022-02-09 04:07:58,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5273 states to 5273 states and 17851 transitions. [2022-02-09 04:07:58,653 INFO L78 Accepts]: Start accepts. Automaton has 5273 states and 17851 transitions. Word has length 39 [2022-02-09 04:07:58,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:07:58,653 INFO L470 AbstractCegarLoop]: Abstraction has 5273 states and 17851 transitions. [2022-02-09 04:07:58,653 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:07:58,653 INFO L276 IsEmpty]: Start isEmpty. Operand 5273 states and 17851 transitions. [2022-02-09 04:07:58,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:07:58,660 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:07:58,660 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:07:58,660 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable323 [2022-02-09 04:07:58,661 INFO L402 AbstractCegarLoop]: === Iteration 325 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:07:58,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:07:58,661 INFO L85 PathProgramCache]: Analyzing trace with hash -220436964, now seen corresponding path program 325 times [2022-02-09 04:07:58,661 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:07:58,661 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32325030] [2022-02-09 04:07:58,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:07:58,661 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:07:58,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:07:58,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:07:58,867 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:07:58,867 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32325030] [2022-02-09 04:07:58,867 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32325030] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:07:58,867 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:07:58,867 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:07:58,867 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115621237] [2022-02-09 04:07:58,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:07:58,867 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:07:58,867 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:07:58,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:07:58,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:07:58,868 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) [2022-02-09 04:08:00,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:08:00,121 INFO L93 Difference]: Finished difference Result 5675 states and 19024 transitions. [2022-02-09 04:08:00,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-02-09 04:08:00,122 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:08:00,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:08:00,133 INFO L225 Difference]: With dead ends: 5675 [2022-02-09 04:08:00,133 INFO L226 Difference]: Without dead ends: 5620 [2022-02-09 04:08:00,133 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 681 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=285, Invalid=2685, Unknown=0, NotChecked=0, Total=2970 [2022-02-09 04:08:00,133 INFO L933 BasicCegarLoop]: 111 mSDtfsCounter, 249 mSDsluCounter, 1339 mSDsCounter, 0 mSdLazyCounter, 1874 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 04:08:00,133 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [249 Valid, 1113 Invalid, 1923 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1874 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 04:08:00,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5620 states. [2022-02-09 04:08:00,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5620 to 5275. [2022-02-09 04:08:00,193 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) [2022-02-09 04:08:00,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5275 states to 5275 states and 17856 transitions. [2022-02-09 04:08:00,204 INFO L78 Accepts]: Start accepts. Automaton has 5275 states and 17856 transitions. Word has length 39 [2022-02-09 04:08:00,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:08:00,204 INFO L470 AbstractCegarLoop]: Abstraction has 5275 states and 17856 transitions. [2022-02-09 04:08:00,204 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) [2022-02-09 04:08:00,204 INFO L276 IsEmpty]: Start isEmpty. Operand 5275 states and 17856 transitions. [2022-02-09 04:08:00,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:08:00,211 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:08:00,211 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:08:00,211 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable324 [2022-02-09 04:08:00,211 INFO L402 AbstractCegarLoop]: === Iteration 326 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:08:00,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:08:00,211 INFO L85 PathProgramCache]: Analyzing trace with hash 1116621050, now seen corresponding path program 326 times [2022-02-09 04:08:00,212 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:08:00,212 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248768589] [2022-02-09 04:08:00,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:08:00,212 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:08:00,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:08:00,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:08:00,417 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:08:00,417 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248768589] [2022-02-09 04:08:00,417 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248768589] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:08:00,417 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:08:00,417 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:08:00,418 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611914453] [2022-02-09 04:08:00,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:08:00,418 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:08:00,418 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:08:00,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:08:00,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:08:00,418 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) [2022-02-09 04:08:01,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:08:01,584 INFO L93 Difference]: Finished difference Result 5651 states and 18954 transitions. [2022-02-09 04:08:01,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-02-09 04:08:01,584 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:08:01,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:08:01,596 INFO L225 Difference]: With dead ends: 5651 [2022-02-09 04:08:01,596 INFO L226 Difference]: Without dead ends: 5608 [2022-02-09 04:08:01,596 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 [2022-02-09 04:08:01,596 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 [2022-02-09 04:08:01,597 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] [2022-02-09 04:08:01,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5608 states. [2022-02-09 04:08:01,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5608 to 5281. [2022-02-09 04:08:01,661 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) [2022-02-09 04:08:01,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5281 states to 5281 states and 17869 transitions. [2022-02-09 04:08:01,710 INFO L78 Accepts]: Start accepts. Automaton has 5281 states and 17869 transitions. Word has length 39 [2022-02-09 04:08:01,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:08:01,710 INFO L470 AbstractCegarLoop]: Abstraction has 5281 states and 17869 transitions. [2022-02-09 04:08:01,710 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:08:01,710 INFO L276 IsEmpty]: Start isEmpty. Operand 5281 states and 17869 transitions. [2022-02-09 04:08:01,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:08:01,717 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:08:01,717 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:08:01,718 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable325 [2022-02-09 04:08:01,718 INFO L402 AbstractCegarLoop]: === Iteration 327 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:08:01,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:08:01,718 INFO L85 PathProgramCache]: Analyzing trace with hash 845201500, now seen corresponding path program 327 times [2022-02-09 04:08:01,718 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:08:01,718 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239433133] [2022-02-09 04:08:01,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:08:01,718 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:08:01,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:08:01,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:08:01,927 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:08:01,927 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239433133] [2022-02-09 04:08:01,927 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239433133] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:08:01,927 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:08:01,927 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:08:01,927 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847552078] [2022-02-09 04:08:01,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:08:01,927 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:08:01,927 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:08:01,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:08:01,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:08:01,928 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) [2022-02-09 04:08:03,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:08:03,100 INFO L93 Difference]: Finished difference Result 5600 states and 18831 transitions. [2022-02-09 04:08:03,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-02-09 04:08:03,101 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:08:03,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:08:03,111 INFO L225 Difference]: With dead ends: 5600 [2022-02-09 04:08:03,111 INFO L226 Difference]: Without dead ends: 5539 [2022-02-09 04:08:03,112 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 [2022-02-09 04:08:03,112 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 [2022-02-09 04:08:03,112 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] [2022-02-09 04:08:03,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5539 states. [2022-02-09 04:08:03,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5539 to 5269. [2022-02-09 04:08:03,173 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) [2022-02-09 04:08:03,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5269 states to 5269 states and 17843 transitions. [2022-02-09 04:08:03,183 INFO L78 Accepts]: Start accepts. Automaton has 5269 states and 17843 transitions. Word has length 39 [2022-02-09 04:08:03,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:08:03,184 INFO L470 AbstractCegarLoop]: Abstraction has 5269 states and 17843 transitions. [2022-02-09 04:08:03,184 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) [2022-02-09 04:08:03,184 INFO L276 IsEmpty]: Start isEmpty. Operand 5269 states and 17843 transitions. [2022-02-09 04:08:03,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:08:03,192 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:08:03,192 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:08:03,192 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable326 [2022-02-09 04:08:03,192 INFO L402 AbstractCegarLoop]: === Iteration 328 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:08:03,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:08:03,192 INFO L85 PathProgramCache]: Analyzing trace with hash 747046286, now seen corresponding path program 328 times [2022-02-09 04:08:03,192 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:08:03,192 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966767727] [2022-02-09 04:08:03,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:08:03,192 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:08:03,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:08:03,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:08:03,401 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:08:03,401 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966767727] [2022-02-09 04:08:03,401 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966767727] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:08:03,401 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:08:03,401 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:08:03,401 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634531112] [2022-02-09 04:08:03,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:08:03,402 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:08:03,402 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:08:03,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:08:03,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:08:03,402 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) [2022-02-09 04:08:04,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:08:04,848 INFO L93 Difference]: Finished difference Result 5834 states and 19388 transitions. [2022-02-09 04:08:04,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-02-09 04:08:04,848 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 [2022-02-09 04:08:04,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:08:04,859 INFO L225 Difference]: With dead ends: 5834 [2022-02-09 04:08:04,859 INFO L226 Difference]: Without dead ends: 5779 [2022-02-09 04:08:04,860 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 896 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=353, Invalid=3307, Unknown=0, NotChecked=0, Total=3660 [2022-02-09 04:08:04,860 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 04:08:04,860 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [277 Valid, 1133 Invalid, 2031 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 1959 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 04:08:04,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5779 states. [2022-02-09 04:08:04,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5779 to 5274. [2022-02-09 04:08:04,919 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) [2022-02-09 04:08:04,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5274 states to 5274 states and 17855 transitions. [2022-02-09 04:08:04,929 INFO L78 Accepts]: Start accepts. Automaton has 5274 states and 17855 transitions. Word has length 39 [2022-02-09 04:08:04,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:08:04,929 INFO L470 AbstractCegarLoop]: Abstraction has 5274 states and 17855 transitions. [2022-02-09 04:08:04,929 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) [2022-02-09 04:08:04,929 INFO L276 IsEmpty]: Start isEmpty. Operand 5274 states and 17855 transitions. [2022-02-09 04:08:04,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:08:04,937 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:08:04,937 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] [2022-02-09 04:08:04,937 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable327 [2022-02-09 04:08:04,937 INFO L402 AbstractCegarLoop]: === Iteration 329 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:08:04,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:08:04,937 INFO L85 PathProgramCache]: Analyzing trace with hash 1919698508, now seen corresponding path program 329 times [2022-02-09 04:08:04,937 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:08:04,937 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459169382] [2022-02-09 04:08:04,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:08:04,937 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:08:04,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:08:05,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:08:05,147 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:08:05,147 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459169382] [2022-02-09 04:08:05,147 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459169382] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:08:05,147 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:08:05,147 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:08:05,147 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837222130] [2022-02-09 04:08:05,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:08:05,148 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:08:05,148 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:08:05,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:08:05,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:08:05,148 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) [2022-02-09 04:08:06,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:08:06,486 INFO L93 Difference]: Finished difference Result 5825 states and 19355 transitions. [2022-02-09 04:08:06,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-02-09 04:08:06,486 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 [2022-02-09 04:08:06,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:08:06,498 INFO L225 Difference]: With dead ends: 5825 [2022-02-09 04:08:06,499 INFO L226 Difference]: Without dead ends: 5779 [2022-02-09 04:08:06,499 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 708 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=299, Invalid=2781, Unknown=0, NotChecked=0, Total=3080 [2022-02-09 04:08:06,499 INFO L933 BasicCegarLoop]: 109 mSDtfsCounter, 273 mSDsluCounter, 1396 mSDsCounter, 0 mSdLazyCounter, 1897 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 04:08:06,499 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [273 Valid, 1134 Invalid, 1949 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 1897 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 04:08:06,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5779 states. [2022-02-09 04:08:06,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5779 to 5280. [2022-02-09 04:08:06,559 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) [2022-02-09 04:08:06,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5280 states to 5280 states and 17870 transitions. [2022-02-09 04:08:06,569 INFO L78 Accepts]: Start accepts. Automaton has 5280 states and 17870 transitions. Word has length 39 [2022-02-09 04:08:06,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:08:06,569 INFO L470 AbstractCegarLoop]: Abstraction has 5280 states and 17870 transitions. [2022-02-09 04:08:06,569 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) [2022-02-09 04:08:06,569 INFO L276 IsEmpty]: Start isEmpty. Operand 5280 states and 17870 transitions. [2022-02-09 04:08:06,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:08:06,576 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:08:06,576 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] [2022-02-09 04:08:06,576 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable328 [2022-02-09 04:08:06,576 INFO L402 AbstractCegarLoop]: === Iteration 330 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:08:06,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:08:06,576 INFO L85 PathProgramCache]: Analyzing trace with hash 1672232346, now seen corresponding path program 330 times [2022-02-09 04:08:06,576 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:08:06,576 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652005714] [2022-02-09 04:08:06,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:08:06,577 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:08:06,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:08:06,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:08:06,790 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:08:06,790 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652005714] [2022-02-09 04:08:06,790 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652005714] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:08:06,790 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:08:06,790 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:08:06,790 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374492190] [2022-02-09 04:08:06,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:08:06,791 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:08:06,791 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:08:06,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:08:06,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:08:06,791 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) [2022-02-09 04:08:08,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:08:08,111 INFO L93 Difference]: Finished difference Result 5789 states and 19272 transitions. [2022-02-09 04:08:08,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-02-09 04:08:08,111 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:08:08,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:08:08,122 INFO L225 Difference]: With dead ends: 5789 [2022-02-09 04:08:08,123 INFO L226 Difference]: Without dead ends: 5744 [2022-02-09 04:08:08,123 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 703 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=300, Invalid=2780, Unknown=0, NotChecked=0, Total=3080 [2022-02-09 04:08:08,123 INFO L933 BasicCegarLoop]: 109 mSDtfsCounter, 257 mSDsluCounter, 1383 mSDsCounter, 0 mSdLazyCounter, 1890 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 04:08:08,123 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [257 Valid, 1129 Invalid, 1942 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 1890 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 04:08:08,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5744 states. [2022-02-09 04:08:08,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5744 to 5278. [2022-02-09 04:08:08,186 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) [2022-02-09 04:08:08,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5278 states to 5278 states and 17866 transitions. [2022-02-09 04:08:08,195 INFO L78 Accepts]: Start accepts. Automaton has 5278 states and 17866 transitions. Word has length 39 [2022-02-09 04:08:08,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:08:08,196 INFO L470 AbstractCegarLoop]: Abstraction has 5278 states and 17866 transitions. [2022-02-09 04:08:08,196 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:08:08,196 INFO L276 IsEmpty]: Start isEmpty. Operand 5278 states and 17866 transitions. [2022-02-09 04:08:08,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:08:08,203 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:08:08,203 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:08:08,203 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable329 [2022-02-09 04:08:08,203 INFO L402 AbstractCegarLoop]: === Iteration 331 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:08:08,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:08:08,203 INFO L85 PathProgramCache]: Analyzing trace with hash 1851953628, now seen corresponding path program 331 times [2022-02-09 04:08:08,203 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:08:08,203 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786701446] [2022-02-09 04:08:08,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:08:08,204 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:08:08,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:08:08,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:08:08,440 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:08:08,440 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786701446] [2022-02-09 04:08:08,440 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786701446] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:08:08,440 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:08:08,440 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:08:08,440 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097667038] [2022-02-09 04:08:08,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:08:08,440 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:08:08,440 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:08:08,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:08:08,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:08:08,440 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) [2022-02-09 04:08:09,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:08:09,799 INFO L93 Difference]: Finished difference Result 5840 states and 19400 transitions. [2022-02-09 04:08:09,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-02-09 04:08:09,799 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:08:09,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:08:09,810 INFO L225 Difference]: With dead ends: 5840 [2022-02-09 04:08:09,811 INFO L226 Difference]: Without dead ends: 5797 [2022-02-09 04:08:09,811 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 788 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=312, Invalid=2994, Unknown=0, NotChecked=0, Total=3306 [2022-02-09 04:08:09,811 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 [2022-02-09 04:08:09,811 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] [2022-02-09 04:08:09,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5797 states. [2022-02-09 04:08:09,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5797 to 5287. [2022-02-09 04:08:09,874 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) [2022-02-09 04:08:09,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5287 states to 5287 states and 17887 transitions. [2022-02-09 04:08:09,884 INFO L78 Accepts]: Start accepts. Automaton has 5287 states and 17887 transitions. Word has length 39 [2022-02-09 04:08:09,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:08:09,884 INFO L470 AbstractCegarLoop]: Abstraction has 5287 states and 17887 transitions. [2022-02-09 04:08:09,884 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:08:09,884 INFO L276 IsEmpty]: Start isEmpty. Operand 5287 states and 17887 transitions. [2022-02-09 04:08:09,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:08:09,891 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:08:09,891 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:08:09,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable330 [2022-02-09 04:08:09,891 INFO L402 AbstractCegarLoop]: === Iteration 332 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:08:09,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:08:09,891 INFO L85 PathProgramCache]: Analyzing trace with hash -692906532, now seen corresponding path program 332 times [2022-02-09 04:08:09,891 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:08:09,891 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635491936] [2022-02-09 04:08:09,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:08:09,892 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:08:09,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:08:10,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:08:10,105 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:08:10,105 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635491936] [2022-02-09 04:08:10,105 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635491936] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:08:10,105 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:08:10,105 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:08:10,105 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534776076] [2022-02-09 04:08:10,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:08:10,105 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:08:10,106 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:08:10,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:08:10,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:08:10,106 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) [2022-02-09 04:08:11,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:08:11,434 INFO L93 Difference]: Finished difference Result 5805 states and 19315 transitions. [2022-02-09 04:08:11,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-02-09 04:08:11,434 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 [2022-02-09 04:08:11,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:08:11,445 INFO L225 Difference]: With dead ends: 5805 [2022-02-09 04:08:11,445 INFO L226 Difference]: Without dead ends: 5754 [2022-02-09 04:08:11,446 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 713 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=287, Invalid=2793, Unknown=0, NotChecked=0, Total=3080 [2022-02-09 04:08:11,446 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 [2022-02-09 04:08:11,446 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] [2022-02-09 04:08:11,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5754 states. [2022-02-09 04:08:11,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5754 to 5287. [2022-02-09 04:08:11,505 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) [2022-02-09 04:08:11,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5287 states to 5287 states and 17884 transitions. [2022-02-09 04:08:11,515 INFO L78 Accepts]: Start accepts. Automaton has 5287 states and 17884 transitions. Word has length 39 [2022-02-09 04:08:11,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:08:11,516 INFO L470 AbstractCegarLoop]: Abstraction has 5287 states and 17884 transitions. [2022-02-09 04:08:11,516 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) [2022-02-09 04:08:11,516 INFO L276 IsEmpty]: Start isEmpty. Operand 5287 states and 17884 transitions. [2022-02-09 04:08:11,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:08:11,523 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:08:11,523 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] [2022-02-09 04:08:11,523 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable331 [2022-02-09 04:08:11,523 INFO L402 AbstractCegarLoop]: === Iteration 333 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:08:11,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:08:11,523 INFO L85 PathProgramCache]: Analyzing trace with hash -75688130, now seen corresponding path program 333 times [2022-02-09 04:08:11,523 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:08:11,523 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590576215] [2022-02-09 04:08:11,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:08:11,523 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:08:11,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:08:11,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:08:11,731 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:08:11,731 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590576215] [2022-02-09 04:08:11,732 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590576215] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:08:11,732 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:08:11,732 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:08:11,732 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786038943] [2022-02-09 04:08:11,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:08:11,732 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:08:11,732 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:08:11,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:08:11,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:08:11,732 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) [2022-02-09 04:08:12,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:08:12,972 INFO L93 Difference]: Finished difference Result 5828 states and 19359 transitions. [2022-02-09 04:08:12,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-02-09 04:08:12,972 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 [2022-02-09 04:08:12,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:08:12,985 INFO L225 Difference]: With dead ends: 5828 [2022-02-09 04:08:12,985 INFO L226 Difference]: Without dead ends: 5782 [2022-02-09 04:08:12,986 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 641 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=271, Invalid=2591, Unknown=0, NotChecked=0, Total=2862 [2022-02-09 04:08:12,986 INFO L933 BasicCegarLoop]: 112 mSDtfsCounter, 262 mSDsluCounter, 1396 mSDsCounter, 0 mSdLazyCounter, 1937 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 04:08:12,986 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [262 Valid, 1140 Invalid, 1987 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 1937 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 04:08:12,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5782 states. [2022-02-09 04:08:13,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5782 to 5294. [2022-02-09 04:08:13,080 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) [2022-02-09 04:08:13,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5294 states to 5294 states and 17899 transitions. [2022-02-09 04:08:13,089 INFO L78 Accepts]: Start accepts. Automaton has 5294 states and 17899 transitions. Word has length 39 [2022-02-09 04:08:13,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:08:13,090 INFO L470 AbstractCegarLoop]: Abstraction has 5294 states and 17899 transitions. [2022-02-09 04:08:13,090 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:08:13,090 INFO L276 IsEmpty]: Start isEmpty. Operand 5294 states and 17899 transitions. [2022-02-09 04:08:13,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:08:13,096 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:08:13,096 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:08:13,096 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable332 [2022-02-09 04:08:13,096 INFO L402 AbstractCegarLoop]: === Iteration 334 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:08:13,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:08:13,097 INFO L85 PathProgramCache]: Analyzing trace with hash -1510755620, now seen corresponding path program 334 times [2022-02-09 04:08:13,097 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:08:13,097 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967321536] [2022-02-09 04:08:13,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:08:13,097 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:08:13,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:08:13,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:08:13,304 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:08:13,304 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967321536] [2022-02-09 04:08:13,304 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967321536] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:08:13,305 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:08:13,305 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:08:13,305 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131692400] [2022-02-09 04:08:13,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:08:13,305 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:08:13,305 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:08:13,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:08:13,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:08:13,305 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) [2022-02-09 04:08:14,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:08:14,563 INFO L93 Difference]: Finished difference Result 5791 states and 19268 transitions. [2022-02-09 04:08:14,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-02-09 04:08:14,563 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:08:14,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:08:14,575 INFO L225 Difference]: With dead ends: 5791 [2022-02-09 04:08:14,575 INFO L226 Difference]: Without dead ends: 5736 [2022-02-09 04:08:14,575 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 677 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=277, Invalid=2693, Unknown=0, NotChecked=0, Total=2970 [2022-02-09 04:08:14,575 INFO L933 BasicCegarLoop]: 110 mSDtfsCounter, 268 mSDsluCounter, 1348 mSDsCounter, 0 mSdLazyCounter, 1949 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 04:08:14,576 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [268 Valid, 1101 Invalid, 2000 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 1949 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 04:08:14,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5736 states. [2022-02-09 04:08:14,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5736 to 5291. [2022-02-09 04:08:14,636 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) [2022-02-09 04:08:14,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5291 states to 5291 states and 17893 transitions. [2022-02-09 04:08:14,645 INFO L78 Accepts]: Start accepts. Automaton has 5291 states and 17893 transitions. Word has length 39 [2022-02-09 04:08:14,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:08:14,646 INFO L470 AbstractCegarLoop]: Abstraction has 5291 states and 17893 transitions. [2022-02-09 04:08:14,646 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:08:14,646 INFO L276 IsEmpty]: Start isEmpty. Operand 5291 states and 17893 transitions. [2022-02-09 04:08:14,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:08:14,653 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:08:14,653 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:08:14,653 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable333 [2022-02-09 04:08:14,653 INFO L402 AbstractCegarLoop]: === Iteration 335 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:08:14,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:08:14,653 INFO L85 PathProgramCache]: Analyzing trace with hash 1501508558, now seen corresponding path program 335 times [2022-02-09 04:08:14,653 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:08:14,653 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706017765] [2022-02-09 04:08:14,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:08:14,653 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:08:14,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:08:14,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:08:14,859 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:08:14,859 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706017765] [2022-02-09 04:08:14,859 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706017765] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:08:14,859 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:08:14,859 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:08:14,859 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098711683] [2022-02-09 04:08:14,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:08:14,859 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:08:14,859 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:08:14,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:08:14,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:08:14,859 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) [2022-02-09 04:08:16,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:08:16,175 INFO L93 Difference]: Finished difference Result 5775 states and 19228 transitions. [2022-02-09 04:08:16,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-02-09 04:08:16,176 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:08:16,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:08:16,187 INFO L225 Difference]: With dead ends: 5775 [2022-02-09 04:08:16,187 INFO L226 Difference]: Without dead ends: 5718 [2022-02-09 04:08:16,187 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 713 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=285, Invalid=2795, Unknown=0, NotChecked=0, Total=3080 [2022-02-09 04:08:16,187 INFO L933 BasicCegarLoop]: 112 mSDtfsCounter, 261 mSDsluCounter, 1372 mSDsCounter, 0 mSdLazyCounter, 1983 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 04:08:16,187 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [261 Valid, 1122 Invalid, 2039 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1983 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 04:08:16,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5718 states. [2022-02-09 04:08:16,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5718 to 5283. [2022-02-09 04:08:16,250 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) [2022-02-09 04:08:16,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5283 states to 5283 states and 17874 transitions. [2022-02-09 04:08:16,260 INFO L78 Accepts]: Start accepts. Automaton has 5283 states and 17874 transitions. Word has length 39 [2022-02-09 04:08:16,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:08:16,260 INFO L470 AbstractCegarLoop]: Abstraction has 5283 states and 17874 transitions. [2022-02-09 04:08:16,260 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:08:16,260 INFO L276 IsEmpty]: Start isEmpty. Operand 5283 states and 17874 transitions. [2022-02-09 04:08:16,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:08:16,268 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:08:16,268 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:08:16,268 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable334 [2022-02-09 04:08:16,268 INFO L402 AbstractCegarLoop]: === Iteration 336 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:08:16,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:08:16,268 INFO L85 PathProgramCache]: Analyzing trace with hash -2052727112, now seen corresponding path program 336 times [2022-02-09 04:08:16,268 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:08:16,269 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417412184] [2022-02-09 04:08:16,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:08:16,269 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:08:16,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:08:16,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:08:16,474 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:08:16,475 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417412184] [2022-02-09 04:08:16,475 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417412184] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:08:16,475 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:08:16,475 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:08:16,475 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885735629] [2022-02-09 04:08:16,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:08:16,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:08:16,475 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:08:16,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:08:16,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:08:16,475 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) [2022-02-09 04:08:17,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:08:17,730 INFO L93 Difference]: Finished difference Result 5706 states and 19073 transitions. [2022-02-09 04:08:17,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-02-09 04:08:17,730 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:08:17,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:08:17,742 INFO L225 Difference]: With dead ends: 5706 [2022-02-09 04:08:17,742 INFO L226 Difference]: Without dead ends: 5663 [2022-02-09 04:08:17,742 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 637 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=272, Invalid=2590, Unknown=0, NotChecked=0, Total=2862 [2022-02-09 04:08:17,742 INFO L933 BasicCegarLoop]: 112 mSDtfsCounter, 252 mSDsluCounter, 1375 mSDsCounter, 0 mSdLazyCounter, 1886 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 04:08:17,743 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [252 Valid, 1152 Invalid, 1938 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 1886 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 04:08:17,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5663 states. [2022-02-09 04:08:17,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5663 to 5279. [2022-02-09 04:08:17,820 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) [2022-02-09 04:08:17,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5279 states to 5279 states and 17864 transitions. [2022-02-09 04:08:17,831 INFO L78 Accepts]: Start accepts. Automaton has 5279 states and 17864 transitions. Word has length 39 [2022-02-09 04:08:17,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:08:17,831 INFO L470 AbstractCegarLoop]: Abstraction has 5279 states and 17864 transitions. [2022-02-09 04:08:17,831 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) [2022-02-09 04:08:17,831 INFO L276 IsEmpty]: Start isEmpty. Operand 5279 states and 17864 transitions. [2022-02-09 04:08:17,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:08:17,838 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:08:17,838 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] [2022-02-09 04:08:17,838 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable335 [2022-02-09 04:08:17,838 INFO L402 AbstractCegarLoop]: === Iteration 337 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:08:17,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:08:17,839 INFO L85 PathProgramCache]: Analyzing trace with hash -215969622, now seen corresponding path program 337 times [2022-02-09 04:08:17,839 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:08:17,839 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960180241] [2022-02-09 04:08:17,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:08:17,839 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:08:17,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:08:18,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:08:18,050 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:08:18,050 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960180241] [2022-02-09 04:08:18,050 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1960180241] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:08:18,050 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:08:18,050 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:08:18,050 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699195710] [2022-02-09 04:08:18,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:08:18,050 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:08:18,050 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:08:18,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:08:18,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:08:18,050 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) [2022-02-09 04:08:19,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:08:19,309 INFO L93 Difference]: Finished difference Result 5704 states and 19064 transitions. [2022-02-09 04:08:19,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-02-09 04:08:19,309 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:08:19,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:08:19,320 INFO L225 Difference]: With dead ends: 5704 [2022-02-09 04:08:19,320 INFO L226 Difference]: Without dead ends: 5643 [2022-02-09 04:08:19,321 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 639 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=269, Invalid=2593, Unknown=0, NotChecked=0, Total=2862 [2022-02-09 04:08:19,321 INFO L933 BasicCegarLoop]: 113 mSDtfsCounter, 247 mSDsluCounter, 1392 mSDsCounter, 0 mSdLazyCounter, 1971 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 04:08:19,321 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [247 Valid, 1135 Invalid, 2019 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 1971 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 04:08:19,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5643 states. [2022-02-09 04:08:19,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5643 to 5267. [2022-02-09 04:08:19,380 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) [2022-02-09 04:08:19,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5267 states to 5267 states and 17839 transitions. [2022-02-09 04:08:19,389 INFO L78 Accepts]: Start accepts. Automaton has 5267 states and 17839 transitions. Word has length 39 [2022-02-09 04:08:19,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:08:19,390 INFO L470 AbstractCegarLoop]: Abstraction has 5267 states and 17839 transitions. [2022-02-09 04:08:19,390 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:08:19,390 INFO L276 IsEmpty]: Start isEmpty. Operand 5267 states and 17839 transitions. [2022-02-09 04:08:19,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:08:19,396 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:08:19,396 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:08:19,397 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable336 [2022-02-09 04:08:19,397 INFO L402 AbstractCegarLoop]: === Iteration 338 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:08:19,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:08:19,397 INFO L85 PathProgramCache]: Analyzing trace with hash -908934758, now seen corresponding path program 338 times [2022-02-09 04:08:19,397 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:08:19,397 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751682618] [2022-02-09 04:08:19,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:08:19,397 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:08:19,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:08:19,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:08:19,607 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:08:19,607 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751682618] [2022-02-09 04:08:19,607 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751682618] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:08:19,607 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:08:19,607 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:08:19,607 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804393455] [2022-02-09 04:08:19,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:08:19,607 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:08:19,607 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:08:19,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:08:19,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:08:19,607 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) [2022-02-09 04:08:20,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:08:20,614 INFO L93 Difference]: Finished difference Result 5556 states and 18699 transitions. [2022-02-09 04:08:20,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-09 04:08:20,614 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:08:20,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:08:20,626 INFO L225 Difference]: With dead ends: 5556 [2022-02-09 04:08:20,626 INFO L226 Difference]: Without dead ends: 5493 [2022-02-09 04:08:20,626 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 389 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=202, Invalid=1868, Unknown=0, NotChecked=0, Total=2070 [2022-02-09 04:08:20,626 INFO L933 BasicCegarLoop]: 114 mSDtfsCounter, 207 mSDsluCounter, 1263 mSDsCounter, 0 mSdLazyCounter, 1749 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.5s IncrementalHoareTripleChecker+Time [2022-02-09 04:08:20,626 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [207 Valid, 1094 Invalid, 1788 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1749 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-09 04:08:20,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5493 states. [2022-02-09 04:08:20,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5493 to 5299. [2022-02-09 04:08:20,687 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) [2022-02-09 04:08:20,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5299 states to 5299 states and 17923 transitions. [2022-02-09 04:08:20,697 INFO L78 Accepts]: Start accepts. Automaton has 5299 states and 17923 transitions. Word has length 39 [2022-02-09 04:08:20,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:08:20,697 INFO L470 AbstractCegarLoop]: Abstraction has 5299 states and 17923 transitions. [2022-02-09 04:08:20,697 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:08:20,697 INFO L276 IsEmpty]: Start isEmpty. Operand 5299 states and 17923 transitions. [2022-02-09 04:08:20,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:08:20,705 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:08:20,705 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] [2022-02-09 04:08:20,705 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable337 [2022-02-09 04:08:20,705 INFO L402 AbstractCegarLoop]: === Iteration 339 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:08:20,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:08:20,705 INFO L85 PathProgramCache]: Analyzing trace with hash -1438835206, now seen corresponding path program 339 times [2022-02-09 04:08:20,705 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:08:20,705 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592863249] [2022-02-09 04:08:20,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:08:20,705 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:08:20,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:08:20,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:08:20,918 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:08:20,918 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592863249] [2022-02-09 04:08:20,918 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592863249] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:08:20,918 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:08:20,918 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:08:20,918 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640397164] [2022-02-09 04:08:20,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:08:20,918 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:08:20,918 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:08:20,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:08:20,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:08:20,919 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) [2022-02-09 04:08:21,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:08:21,962 INFO L93 Difference]: Finished difference Result 5580 states and 18759 transitions. [2022-02-09 04:08:21,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-09 04:08:21,962 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 [2022-02-09 04:08:21,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:08:21,973 INFO L225 Difference]: With dead ends: 5580 [2022-02-09 04:08:21,973 INFO L226 Difference]: Without dead ends: 5457 [2022-02-09 04:08:21,974 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 415 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=210, Invalid=1952, Unknown=0, NotChecked=0, Total=2162 [2022-02-09 04:08:21,974 INFO L933 BasicCegarLoop]: 119 mSDtfsCounter, 205 mSDsluCounter, 1322 mSDsCounter, 0 mSdLazyCounter, 1758 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 04:08:21,974 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [205 Valid, 1159 Invalid, 1794 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1758 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 04:08:21,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5457 states. [2022-02-09 04:08:22,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5457 to 5267. [2022-02-09 04:08:22,057 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) [2022-02-09 04:08:22,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5267 states to 5267 states and 17823 transitions. [2022-02-09 04:08:22,067 INFO L78 Accepts]: Start accepts. Automaton has 5267 states and 17823 transitions. Word has length 39 [2022-02-09 04:08:22,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:08:22,067 INFO L470 AbstractCegarLoop]: Abstraction has 5267 states and 17823 transitions. [2022-02-09 04:08:22,067 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:08:22,068 INFO L276 IsEmpty]: Start isEmpty. Operand 5267 states and 17823 transitions. [2022-02-09 04:08:22,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:08:22,075 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:08:22,075 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] [2022-02-09 04:08:22,075 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable338 [2022-02-09 04:08:22,075 INFO L402 AbstractCegarLoop]: === Iteration 340 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:08:22,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:08:22,075 INFO L85 PathProgramCache]: Analyzing trace with hash -1941297604, now seen corresponding path program 340 times [2022-02-09 04:08:22,075 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:08:22,075 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907331971] [2022-02-09 04:08:22,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:08:22,075 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:08:22,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:08:22,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:08:22,283 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:08:22,283 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907331971] [2022-02-09 04:08:22,283 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907331971] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:08:22,283 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:08:22,283 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:08:22,283 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26669717] [2022-02-09 04:08:22,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:08:22,283 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:08:22,283 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:08:22,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:08:22,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:08:22,283 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) [2022-02-09 04:08:23,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:08:23,309 INFO L93 Difference]: Finished difference Result 5540 states and 18645 transitions. [2022-02-09 04:08:23,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-09 04:08:23,310 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:08:23,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:08:23,320 INFO L225 Difference]: With dead ends: 5540 [2022-02-09 04:08:23,320 INFO L226 Difference]: Without dead ends: 5477 [2022-02-09 04:08:23,320 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 419 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=210, Invalid=1952, Unknown=0, NotChecked=0, Total=2162 [2022-02-09 04:08:23,320 INFO L933 BasicCegarLoop]: 111 mSDtfsCounter, 212 mSDsluCounter, 1267 mSDsCounter, 0 mSdLazyCounter, 1756 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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 [2022-02-09 04:08:23,320 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] [2022-02-09 04:08:23,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5477 states. [2022-02-09 04:08:23,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5477 to 5267. [2022-02-09 04:08:23,378 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) [2022-02-09 04:08:23,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5267 states to 5267 states and 17819 transitions. [2022-02-09 04:08:23,388 INFO L78 Accepts]: Start accepts. Automaton has 5267 states and 17819 transitions. Word has length 39 [2022-02-09 04:08:23,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:08:23,388 INFO L470 AbstractCegarLoop]: Abstraction has 5267 states and 17819 transitions. [2022-02-09 04:08:23,388 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:08:23,388 INFO L276 IsEmpty]: Start isEmpty. Operand 5267 states and 17819 transitions. [2022-02-09 04:08:23,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:08:23,394 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:08:23,394 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:08:23,395 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable339 [2022-02-09 04:08:23,395 INFO L402 AbstractCegarLoop]: === Iteration 341 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:08:23,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:08:23,395 INFO L85 PathProgramCache]: Analyzing trace with hash 2108177594, now seen corresponding path program 341 times [2022-02-09 04:08:23,395 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:08:23,395 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741088203] [2022-02-09 04:08:23,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:08:23,395 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:08:23,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:08:23,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:08:23,601 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:08:23,601 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741088203] [2022-02-09 04:08:23,601 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741088203] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:08:23,601 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:08:23,601 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:08:23,601 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139169867] [2022-02-09 04:08:23,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:08:23,602 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:08:23,602 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:08:23,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:08:23,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:08:23,602 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) [2022-02-09 04:08:24,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:08:24,624 INFO L93 Difference]: Finished difference Result 5557 states and 18671 transitions. [2022-02-09 04:08:24,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-09 04:08:24,624 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 [2022-02-09 04:08:24,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:08:24,635 INFO L225 Difference]: With dead ends: 5557 [2022-02-09 04:08:24,635 INFO L226 Difference]: Without dead ends: 5514 [2022-02-09 04:08:24,636 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 [2022-02-09 04:08:24,636 INFO L933 BasicCegarLoop]: 108 mSDtfsCounter, 220 mSDsluCounter, 1276 mSDsCounter, 0 mSdLazyCounter, 1778 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 04:08:24,636 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [220 Valid, 1061 Invalid, 1809 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1778 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 04:08:24,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5514 states. [2022-02-09 04:08:24,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5514 to 5273. [2022-02-09 04:08:24,702 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) [2022-02-09 04:08:24,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5273 states to 5273 states and 17832 transitions. [2022-02-09 04:08:24,713 INFO L78 Accepts]: Start accepts. Automaton has 5273 states and 17832 transitions. Word has length 39 [2022-02-09 04:08:24,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:08:24,713 INFO L470 AbstractCegarLoop]: Abstraction has 5273 states and 17832 transitions. [2022-02-09 04:08:24,713 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:08:24,713 INFO L276 IsEmpty]: Start isEmpty. Operand 5273 states and 17832 transitions. [2022-02-09 04:08:24,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:08:24,720 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:08:24,720 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:08:24,720 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable340 [2022-02-09 04:08:24,720 INFO L402 AbstractCegarLoop]: === Iteration 342 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:08:24,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:08:24,721 INFO L85 PathProgramCache]: Analyzing trace with hash -1357258532, now seen corresponding path program 342 times [2022-02-09 04:08:24,721 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:08:24,721 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972197343] [2022-02-09 04:08:24,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:08:24,721 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:08:24,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:08:24,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:08:24,930 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:08:24,930 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972197343] [2022-02-09 04:08:24,930 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972197343] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:08:24,930 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:08:24,930 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:08:24,930 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512737178] [2022-02-09 04:08:24,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:08:24,930 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:08:24,930 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:08:24,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:08:24,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:08:24,930 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) [2022-02-09 04:08:25,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:08:25,923 INFO L93 Difference]: Finished difference Result 5512 states and 18567 transitions. [2022-02-09 04:08:25,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-09 04:08:25,923 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:08:25,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:08:25,935 INFO L225 Difference]: With dead ends: 5512 [2022-02-09 04:08:25,935 INFO L226 Difference]: Without dead ends: 5449 [2022-02-09 04:08:25,935 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 365 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=188, Invalid=1792, Unknown=0, NotChecked=0, Total=1980 [2022-02-09 04:08:25,936 INFO L933 BasicCegarLoop]: 109 mSDtfsCounter, 198 mSDsluCounter, 1272 mSDsCounter, 0 mSdLazyCounter, 1771 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 04:08:25,936 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [198 Valid, 1061 Invalid, 1801 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1771 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 04:08:25,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5449 states. [2022-02-09 04:08:25,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5449 to 5255. [2022-02-09 04:08:25,997 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) [2022-02-09 04:08:26,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5255 states to 5255 states and 17789 transitions. [2022-02-09 04:08:26,041 INFO L78 Accepts]: Start accepts. Automaton has 5255 states and 17789 transitions. Word has length 39 [2022-02-09 04:08:26,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:08:26,041 INFO L470 AbstractCegarLoop]: Abstraction has 5255 states and 17789 transitions. [2022-02-09 04:08:26,041 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) [2022-02-09 04:08:26,041 INFO L276 IsEmpty]: Start isEmpty. Operand 5255 states and 17789 transitions. [2022-02-09 04:08:26,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:08:26,048 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:08:26,048 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] [2022-02-09 04:08:26,048 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable341 [2022-02-09 04:08:26,048 INFO L402 AbstractCegarLoop]: === Iteration 343 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:08:26,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:08:26,048 INFO L85 PathProgramCache]: Analyzing trace with hash 924472956, now seen corresponding path program 343 times [2022-02-09 04:08:26,049 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:08:26,049 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389916064] [2022-02-09 04:08:26,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:08:26,049 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:08:26,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:08:26,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:08:26,258 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:08:26,258 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389916064] [2022-02-09 04:08:26,258 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389916064] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:08:26,258 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:08:26,259 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:08:26,259 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906756424] [2022-02-09 04:08:26,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:08:26,259 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:08:26,259 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:08:26,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:08:26,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:08:26,259 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) [2022-02-09 04:08:27,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:08:27,342 INFO L93 Difference]: Finished difference Result 5575 states and 18724 transitions. [2022-02-09 04:08:27,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-02-09 04:08:27,342 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:08:27,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:08:27,353 INFO L225 Difference]: With dead ends: 5575 [2022-02-09 04:08:27,353 INFO L226 Difference]: Without dead ends: 5520 [2022-02-09 04:08:27,354 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 509 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=234, Invalid=2216, Unknown=0, NotChecked=0, Total=2450 [2022-02-09 04:08:27,354 INFO L933 BasicCegarLoop]: 109 mSDtfsCounter, 242 mSDsluCounter, 1271 mSDsCounter, 0 mSdLazyCounter, 1789 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 04:08:27,354 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [242 Valid, 1069 Invalid, 1833 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 1789 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 04:08:27,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5520 states. [2022-02-09 04:08:27,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5520 to 5257. [2022-02-09 04:08:27,412 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) [2022-02-09 04:08:27,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5257 states to 5257 states and 17794 transitions. [2022-02-09 04:08:27,422 INFO L78 Accepts]: Start accepts. Automaton has 5257 states and 17794 transitions. Word has length 39 [2022-02-09 04:08:27,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:08:27,422 INFO L470 AbstractCegarLoop]: Abstraction has 5257 states and 17794 transitions. [2022-02-09 04:08:27,422 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) [2022-02-09 04:08:27,422 INFO L276 IsEmpty]: Start isEmpty. Operand 5257 states and 17794 transitions. [2022-02-09 04:08:27,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:08:27,429 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:08:27,429 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] [2022-02-09 04:08:27,429 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable342 [2022-02-09 04:08:27,429 INFO L402 AbstractCegarLoop]: === Iteration 344 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:08:27,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:08:27,429 INFO L85 PathProgramCache]: Analyzing trace with hash -2033436326, now seen corresponding path program 344 times [2022-02-09 04:08:27,429 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:08:27,429 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307153128] [2022-02-09 04:08:27,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:08:27,430 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:08:27,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:08:27,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:08:27,638 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:08:27,638 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307153128] [2022-02-09 04:08:27,638 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307153128] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:08:27,638 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:08:27,638 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:08:27,638 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163144411] [2022-02-09 04:08:27,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:08:27,638 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:08:27,638 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:08:27,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:08:27,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:08:27,639 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) [2022-02-09 04:08:28,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:08:28,683 INFO L93 Difference]: Finished difference Result 5551 states and 18654 transitions. [2022-02-09 04:08:28,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-02-09 04:08:28,684 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:08:28,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:08:28,694 INFO L225 Difference]: With dead ends: 5551 [2022-02-09 04:08:28,694 INFO L226 Difference]: Without dead ends: 5508 [2022-02-09 04:08:28,694 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 450 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=213, Invalid=2043, Unknown=0, NotChecked=0, Total=2256 [2022-02-09 04:08:28,695 INFO L933 BasicCegarLoop]: 107 mSDtfsCounter, 230 mSDsluCounter, 1250 mSDsCounter, 0 mSdLazyCounter, 1757 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 04:08:28,695 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [230 Valid, 1050 Invalid, 1794 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1757 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 04:08:28,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5508 states. [2022-02-09 04:08:28,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5508 to 5263. [2022-02-09 04:08:28,752 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) [2022-02-09 04:08:28,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5263 states to 5263 states and 17807 transitions. [2022-02-09 04:08:28,761 INFO L78 Accepts]: Start accepts. Automaton has 5263 states and 17807 transitions. Word has length 39 [2022-02-09 04:08:28,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:08:28,762 INFO L470 AbstractCegarLoop]: Abstraction has 5263 states and 17807 transitions. [2022-02-09 04:08:28,762 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) [2022-02-09 04:08:28,762 INFO L276 IsEmpty]: Start isEmpty. Operand 5263 states and 17807 transitions. [2022-02-09 04:08:28,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:08:28,768 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:08:28,768 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] [2022-02-09 04:08:28,768 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable343 [2022-02-09 04:08:28,769 INFO L402 AbstractCegarLoop]: === Iteration 345 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:08:28,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:08:28,769 INFO L85 PathProgramCache]: Analyzing trace with hash 1990111420, now seen corresponding path program 345 times [2022-02-09 04:08:28,769 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:08:28,769 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505046831] [2022-02-09 04:08:28,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:08:28,769 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:08:28,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:08:28,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:08:28,973 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:08:28,973 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505046831] [2022-02-09 04:08:28,973 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505046831] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:08:28,973 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:08:28,973 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:08:28,973 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145637643] [2022-02-09 04:08:28,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:08:28,973 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:08:28,973 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:08:28,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:08:28,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:08:28,974 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) [2022-02-09 04:08:29,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:08:29,981 INFO L93 Difference]: Finished difference Result 5506 states and 18550 transitions. [2022-02-09 04:08:29,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-09 04:08:29,981 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:08:29,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:08:29,992 INFO L225 Difference]: With dead ends: 5506 [2022-02-09 04:08:29,992 INFO L226 Difference]: Without dead ends: 5445 [2022-02-09 04:08:29,992 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 392 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=197, Invalid=1873, Unknown=0, NotChecked=0, Total=2070 [2022-02-09 04:08:29,993 INFO L933 BasicCegarLoop]: 107 mSDtfsCounter, 205 mSDsluCounter, 1237 mSDsCounter, 0 mSdLazyCounter, 1739 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.5s IncrementalHoareTripleChecker+Time [2022-02-09 04:08:29,993 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [205 Valid, 1040 Invalid, 1776 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1739 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-09 04:08:29,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5445 states. [2022-02-09 04:08:30,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5445 to 5251. [2022-02-09 04:08:30,054 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) [2022-02-09 04:08:30,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5251 states to 5251 states and 17779 transitions. [2022-02-09 04:08:30,099 INFO L78 Accepts]: Start accepts. Automaton has 5251 states and 17779 transitions. Word has length 39 [2022-02-09 04:08:30,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:08:30,099 INFO L470 AbstractCegarLoop]: Abstraction has 5251 states and 17779 transitions. [2022-02-09 04:08:30,099 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:08:30,099 INFO L276 IsEmpty]: Start isEmpty. Operand 5251 states and 17779 transitions. [2022-02-09 04:08:30,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:08:30,107 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:08:30,107 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] [2022-02-09 04:08:30,107 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable344 [2022-02-09 04:08:30,107 INFO L402 AbstractCegarLoop]: === Iteration 346 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:08:30,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:08:30,107 INFO L85 PathProgramCache]: Analyzing trace with hash 1500706234, now seen corresponding path program 346 times [2022-02-09 04:08:30,107 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:08:30,107 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100513044] [2022-02-09 04:08:30,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:08:30,107 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:08:30,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:08:30,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:08:30,315 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:08:30,315 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100513044] [2022-02-09 04:08:30,315 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100513044] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:08:30,315 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:08:30,315 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:08:30,315 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343196994] [2022-02-09 04:08:30,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:08:30,315 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:08:30,315 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:08:30,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:08:30,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:08:30,315 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) [2022-02-09 04:08:31,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:08:31,344 INFO L93 Difference]: Finished difference Result 5548 states and 18675 transitions. [2022-02-09 04:08:31,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-09 04:08:31,344 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:08:31,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:08:31,354 INFO L225 Difference]: With dead ends: 5548 [2022-02-09 04:08:31,354 INFO L226 Difference]: Without dead ends: 5457 [2022-02-09 04:08:31,355 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 443 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=218, Invalid=2038, Unknown=0, NotChecked=0, Total=2256 [2022-02-09 04:08:31,355 INFO L933 BasicCegarLoop]: 120 mSDtfsCounter, 215 mSDsluCounter, 1335 mSDsCounter, 0 mSdLazyCounter, 1777 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.5s IncrementalHoareTripleChecker+Time [2022-02-09 04:08:31,355 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [215 Valid, 1173 Invalid, 1814 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1777 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-09 04:08:31,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5457 states. [2022-02-09 04:08:31,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5457 to 5257. [2022-02-09 04:08:31,416 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) [2022-02-09 04:08:31,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5257 states to 5257 states and 17794 transitions. [2022-02-09 04:08:31,428 INFO L78 Accepts]: Start accepts. Automaton has 5257 states and 17794 transitions. Word has length 39 [2022-02-09 04:08:31,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:08:31,428 INFO L470 AbstractCegarLoop]: Abstraction has 5257 states and 17794 transitions. [2022-02-09 04:08:31,428 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:08:31,428 INFO L276 IsEmpty]: Start isEmpty. Operand 5257 states and 17794 transitions. [2022-02-09 04:08:31,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:08:31,436 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:08:31,436 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] [2022-02-09 04:08:31,436 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable345 [2022-02-09 04:08:31,436 INFO L402 AbstractCegarLoop]: === Iteration 347 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:08:31,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:08:31,437 INFO L85 PathProgramCache]: Analyzing trace with hash -1503716644, now seen corresponding path program 347 times [2022-02-09 04:08:31,437 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:08:31,437 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756482577] [2022-02-09 04:08:31,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:08:31,437 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:08:31,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:08:31,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:08:31,653 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:08:31,653 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756482577] [2022-02-09 04:08:31,653 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756482577] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:08:31,653 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:08:31,653 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:08:31,653 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712034640] [2022-02-09 04:08:31,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:08:31,654 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:08:31,654 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:08:31,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:08:31,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:08:31,654 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) [2022-02-09 04:08:32,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:08:32,755 INFO L93 Difference]: Finished difference Result 5565 states and 18683 transitions. [2022-02-09 04:08:32,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-02-09 04:08:32,755 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 [2022-02-09 04:08:32,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:08:32,766 INFO L225 Difference]: With dead ends: 5565 [2022-02-09 04:08:32,766 INFO L226 Difference]: Without dead ends: 5510 [2022-02-09 04:08:32,766 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 475 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=226, Invalid=2126, Unknown=0, NotChecked=0, Total=2352 [2022-02-09 04:08:32,767 INFO L933 BasicCegarLoop]: 113 mSDtfsCounter, 229 mSDsluCounter, 1323 mSDsCounter, 0 mSdLazyCounter, 1796 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 04:08:32,767 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [229 Valid, 1125 Invalid, 1835 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1796 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 04:08:32,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5510 states. [2022-02-09 04:08:32,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5510 to 5259. [2022-02-09 04:08:32,827 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) [2022-02-09 04:08:32,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5259 states to 5259 states and 17799 transitions. [2022-02-09 04:08:32,837 INFO L78 Accepts]: Start accepts. Automaton has 5259 states and 17799 transitions. Word has length 39 [2022-02-09 04:08:32,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:08:32,838 INFO L470 AbstractCegarLoop]: Abstraction has 5259 states and 17799 transitions. [2022-02-09 04:08:32,838 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) [2022-02-09 04:08:32,838 INFO L276 IsEmpty]: Start isEmpty. Operand 5259 states and 17799 transitions. [2022-02-09 04:08:32,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:08:32,845 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:08:32,845 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:08:32,845 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable346 [2022-02-09 04:08:32,845 INFO L402 AbstractCegarLoop]: === Iteration 348 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:08:32,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:08:32,845 INFO L85 PathProgramCache]: Analyzing trace with hash -166658630, now seen corresponding path program 348 times [2022-02-09 04:08:32,845 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:08:32,846 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049520910] [2022-02-09 04:08:32,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:08:32,846 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:08:32,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:08:33,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:08:33,054 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:08:33,054 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049520910] [2022-02-09 04:08:33,054 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049520910] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:08:33,054 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:08:33,054 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:08:33,054 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887480913] [2022-02-09 04:08:33,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:08:33,054 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:08:33,054 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:08:33,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:08:33,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:08:33,054 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) [2022-02-09 04:08:34,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:08:34,076 INFO L93 Difference]: Finished difference Result 5541 states and 18613 transitions. [2022-02-09 04:08:34,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-09 04:08:34,077 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:08:34,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:08:34,088 INFO L225 Difference]: With dead ends: 5541 [2022-02-09 04:08:34,088 INFO L226 Difference]: Without dead ends: 5498 [2022-02-09 04:08:34,088 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 418 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=204, Invalid=1958, Unknown=0, NotChecked=0, Total=2162 [2022-02-09 04:08:34,089 INFO L933 BasicCegarLoop]: 110 mSDtfsCounter, 217 mSDsluCounter, 1291 mSDsCounter, 0 mSdLazyCounter, 1751 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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 [2022-02-09 04:08:34,089 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] [2022-02-09 04:08:34,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5498 states. [2022-02-09 04:08:34,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5498 to 5265. [2022-02-09 04:08:34,147 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) [2022-02-09 04:08:34,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5265 states to 5265 states and 17812 transitions. [2022-02-09 04:08:34,189 INFO L78 Accepts]: Start accepts. Automaton has 5265 states and 17812 transitions. Word has length 39 [2022-02-09 04:08:34,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:08:34,189 INFO L470 AbstractCegarLoop]: Abstraction has 5265 states and 17812 transitions. [2022-02-09 04:08:34,189 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:08:34,190 INFO L276 IsEmpty]: Start isEmpty. Operand 5265 states and 17812 transitions. [2022-02-09 04:08:34,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:08:34,196 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:08:34,196 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:08:34,196 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable347 [2022-02-09 04:08:34,197 INFO L402 AbstractCegarLoop]: === Iteration 349 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:08:34,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:08:34,197 INFO L85 PathProgramCache]: Analyzing trace with hash -438078180, now seen corresponding path program 349 times [2022-02-09 04:08:34,197 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:08:34,197 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568549826] [2022-02-09 04:08:34,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:08:34,197 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:08:34,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:08:34,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:08:34,405 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:08:34,405 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568549826] [2022-02-09 04:08:34,405 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568549826] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:08:34,405 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:08:34,405 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:08:34,405 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346360684] [2022-02-09 04:08:34,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:08:34,406 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:08:34,406 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:08:34,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:08:34,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:08:34,406 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) [2022-02-09 04:08:35,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:08:35,419 INFO L93 Difference]: Finished difference Result 5496 states and 18509 transitions. [2022-02-09 04:08:35,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-09 04:08:35,419 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:08:35,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:08:35,430 INFO L225 Difference]: With dead ends: 5496 [2022-02-09 04:08:35,431 INFO L226 Difference]: Without dead ends: 5405 [2022-02-09 04:08:35,431 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 418 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=204, Invalid=1958, Unknown=0, NotChecked=0, Total=2162 [2022-02-09 04:08:35,431 INFO L933 BasicCegarLoop]: 110 mSDtfsCounter, 203 mSDsluCounter, 1275 mSDsCounter, 0 mSdLazyCounter, 1731 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.5s IncrementalHoareTripleChecker+Time [2022-02-09 04:08:35,431 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [203 Valid, 1082 Invalid, 1765 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1731 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-09 04:08:35,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5405 states. [2022-02-09 04:08:35,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5405 to 5235. [2022-02-09 04:08:35,495 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) [2022-02-09 04:08:35,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5235 states to 5235 states and 17737 transitions. [2022-02-09 04:08:35,506 INFO L78 Accepts]: Start accepts. Automaton has 5235 states and 17737 transitions. Word has length 39 [2022-02-09 04:08:35,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:08:35,506 INFO L470 AbstractCegarLoop]: Abstraction has 5235 states and 17737 transitions. [2022-02-09 04:08:35,506 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:08:35,507 INFO L276 IsEmpty]: Start isEmpty. Operand 5235 states and 17737 transitions. [2022-02-09 04:08:35,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:08:35,514 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:08:35,514 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:08:35,514 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable348 [2022-02-09 04:08:35,515 INFO L402 AbstractCegarLoop]: === Iteration 350 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:08:35,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:08:35,515 INFO L85 PathProgramCache]: Analyzing trace with hash -1164129526, now seen corresponding path program 350 times [2022-02-09 04:08:35,515 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:08:35,515 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182979719] [2022-02-09 04:08:35,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:08:35,515 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:08:35,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:08:35,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:08:35,725 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:08:35,725 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182979719] [2022-02-09 04:08:35,725 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182979719] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:08:35,725 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:08:35,725 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:08:35,725 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260876396] [2022-02-09 04:08:35,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:08:35,726 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:08:35,726 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:08:35,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:08:35,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:08:35,726 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) [2022-02-09 04:08:37,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:08:37,483 INFO L93 Difference]: Finished difference Result 7596 states and 25341 transitions. [2022-02-09 04:08:37,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-02-09 04:08:37,483 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:08:37,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:08:37,498 INFO L225 Difference]: With dead ends: 7596 [2022-02-09 04:08:37,498 INFO L226 Difference]: Without dead ends: 7541 [2022-02-09 04:08:37,499 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1395 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=433, Invalid=4537, Unknown=0, NotChecked=0, Total=4970 [2022-02-09 04:08:37,499 INFO L933 BasicCegarLoop]: 189 mSDtfsCounter, 480 mSDsluCounter, 2138 mSDsCounter, 0 mSdLazyCounter, 2502 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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, 0.8s IncrementalHoareTripleChecker+Time [2022-02-09 04:08:37,499 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [480 Valid, 2000 Invalid, 2594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 2502 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-09 04:08:37,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7541 states. [2022-02-09 04:08:37,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7541 to 5254. [2022-02-09 04:08:37,573 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) [2022-02-09 04:08:37,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5254 states to 5254 states and 17804 transitions. [2022-02-09 04:08:37,582 INFO L78 Accepts]: Start accepts. Automaton has 5254 states and 17804 transitions. Word has length 39 [2022-02-09 04:08:37,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:08:37,582 INFO L470 AbstractCegarLoop]: Abstraction has 5254 states and 17804 transitions. [2022-02-09 04:08:37,582 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:08:37,582 INFO L276 IsEmpty]: Start isEmpty. Operand 5254 states and 17804 transitions. [2022-02-09 04:08:37,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:08:37,589 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:08:37,589 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:08:37,589 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable349 [2022-02-09 04:08:37,589 INFO L402 AbstractCegarLoop]: === Iteration 351 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:08:37,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:08:37,589 INFO L85 PathProgramCache]: Analyzing trace with hash 8522696, now seen corresponding path program 351 times [2022-02-09 04:08:37,589 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:08:37,589 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441681346] [2022-02-09 04:08:37,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:08:37,589 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:08:37,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:08:37,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:08:37,796 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:08:37,796 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441681346] [2022-02-09 04:08:37,796 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441681346] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:08:37,796 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:08:37,796 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:08:37,796 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331102943] [2022-02-09 04:08:37,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:08:37,797 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:08:37,797 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:08:37,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:08:37,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:08:37,797 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) [2022-02-09 04:08:39,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:08:39,768 INFO L93 Difference]: Finished difference Result 8366 states and 27938 transitions. [2022-02-09 04:08:39,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2022-02-09 04:08:39,768 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:08:39,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:08:39,785 INFO L225 Difference]: With dead ends: 8366 [2022-02-09 04:08:39,785 INFO L226 Difference]: Without dead ends: 8243 [2022-02-09 04:08:39,786 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1721 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=480, Invalid=5372, Unknown=0, NotChecked=0, Total=5852 [2022-02-09 04:08:39,786 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 484 mSDsluCounter, 2534 mSDsCounter, 0 mSdLazyCounter, 2871 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s 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, 0.9s IncrementalHoareTripleChecker+Time [2022-02-09 04:08:39,786 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [484 Valid, 2433 Invalid, 2964 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 2871 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-09 04:08:39,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8243 states. [2022-02-09 04:08:39,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8243 to 5258. [2022-02-09 04:08:39,862 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) [2022-02-09 04:08:39,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5258 states to 5258 states and 17820 transitions. [2022-02-09 04:08:39,871 INFO L78 Accepts]: Start accepts. Automaton has 5258 states and 17820 transitions. Word has length 39 [2022-02-09 04:08:39,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:08:39,872 INFO L470 AbstractCegarLoop]: Abstraction has 5258 states and 17820 transitions. [2022-02-09 04:08:39,872 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:08:39,872 INFO L276 IsEmpty]: Start isEmpty. Operand 5258 states and 17820 transitions. [2022-02-09 04:08:39,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:08:39,878 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:08:39,878 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:08:39,878 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable350 [2022-02-09 04:08:39,878 INFO L402 AbstractCegarLoop]: === Iteration 352 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:08:39,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:08:39,879 INFO L85 PathProgramCache]: Analyzing trace with hash -1868880906, now seen corresponding path program 352 times [2022-02-09 04:08:39,879 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:08:39,879 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086575028] [2022-02-09 04:08:39,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:08:39,879 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:08:39,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:08:40,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:08:40,086 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:08:40,086 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086575028] [2022-02-09 04:08:40,086 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086575028] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:08:40,086 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:08:40,086 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:08:40,086 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909410135] [2022-02-09 04:08:40,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:08:40,087 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:08:40,087 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:08:40,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:08:40,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:08:40,087 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) [2022-02-09 04:08:41,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:08:41,665 INFO L93 Difference]: Finished difference Result 7513 states and 25139 transitions. [2022-02-09 04:08:41,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-02-09 04:08:41,666 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 [2022-02-09 04:08:41,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:08:41,680 INFO L225 Difference]: With dead ends: 7513 [2022-02-09 04:08:41,680 INFO L226 Difference]: Without dead ends: 7422 [2022-02-09 04:08:41,681 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 [2022-02-09 04:08:41,681 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 [2022-02-09 04:08:41,681 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] [2022-02-09 04:08:41,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7422 states. [2022-02-09 04:08:41,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7422 to 5264. [2022-02-09 04:08:41,754 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) [2022-02-09 04:08:41,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5264 states to 5264 states and 17829 transitions. [2022-02-09 04:08:41,764 INFO L78 Accepts]: Start accepts. Automaton has 5264 states and 17829 transitions. Word has length 39 [2022-02-09 04:08:41,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:08:41,764 INFO L470 AbstractCegarLoop]: Abstraction has 5264 states and 17829 transitions. [2022-02-09 04:08:41,764 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:08:41,764 INFO L276 IsEmpty]: Start isEmpty. Operand 5264 states and 17829 transitions. [2022-02-09 04:08:41,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:08:41,771 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:08:41,771 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:08:41,771 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable351 [2022-02-09 04:08:41,771 INFO L402 AbstractCegarLoop]: === Iteration 353 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:08:41,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:08:41,771 INFO L85 PathProgramCache]: Analyzing trace with hash 923604184, now seen corresponding path program 353 times [2022-02-09 04:08:41,771 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:08:41,771 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596792667] [2022-02-09 04:08:41,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:08:41,771 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:08:41,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:08:41,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:08:41,976 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:08:41,976 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596792667] [2022-02-09 04:08:41,976 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596792667] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:08:41,976 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:08:41,976 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:08:41,976 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564502915] [2022-02-09 04:08:41,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:08:41,976 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:08:41,976 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:08:41,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:08:41,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:08:41,977 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) [2022-02-09 04:08:43,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:08:43,855 INFO L93 Difference]: Finished difference Result 8372 states and 28036 transitions. [2022-02-09 04:08:43,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-02-09 04:08:43,855 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:08:43,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:08:43,871 INFO L225 Difference]: With dead ends: 8372 [2022-02-09 04:08:43,871 INFO L226 Difference]: Without dead ends: 8272 [2022-02-09 04:08:43,872 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1384 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=409, Invalid=4561, Unknown=0, NotChecked=0, Total=4970 [2022-02-09 04:08:43,872 INFO L933 BasicCegarLoop]: 238 mSDtfsCounter, 457 mSDsluCounter, 2555 mSDsCounter, 0 mSdLazyCounter, 2948 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s 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, 0.9s IncrementalHoareTripleChecker+Time [2022-02-09 04:08:43,872 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [457 Valid, 2496 Invalid, 3040 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 2948 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-09 04:08:43,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8272 states. [2022-02-09 04:08:43,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8272 to 5252. [2022-02-09 04:08:43,947 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) [2022-02-09 04:08:43,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5252 states to 5252 states and 17789 transitions. [2022-02-09 04:08:43,957 INFO L78 Accepts]: Start accepts. Automaton has 5252 states and 17789 transitions. Word has length 39 [2022-02-09 04:08:43,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:08:43,957 INFO L470 AbstractCegarLoop]: Abstraction has 5252 states and 17789 transitions. [2022-02-09 04:08:43,957 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) [2022-02-09 04:08:43,958 INFO L276 IsEmpty]: Start isEmpty. Operand 5252 states and 17789 transitions. [2022-02-09 04:08:43,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:08:43,965 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:08:43,965 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:08:43,965 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable352 [2022-02-09 04:08:43,965 INFO L402 AbstractCegarLoop]: === Iteration 354 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:08:43,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:08:43,965 INFO L85 PathProgramCache]: Analyzing trace with hash 2098474924, now seen corresponding path program 354 times [2022-02-09 04:08:43,965 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:08:43,965 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130891395] [2022-02-09 04:08:43,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:08:43,965 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:08:43,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:08:44,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:08:44,170 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:08:44,170 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130891395] [2022-02-09 04:08:44,170 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130891395] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:08:44,170 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:08:44,170 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:08:44,170 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587399020] [2022-02-09 04:08:44,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:08:44,171 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:08:44,171 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:08:44,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:08:44,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:08:44,171 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) [2022-02-09 04:08:45,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:08:45,548 INFO L93 Difference]: Finished difference Result 5678 states and 18934 transitions. [2022-02-09 04:08:45,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-02-09 04:08:45,549 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 [2022-02-09 04:08:45,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:08:45,559 INFO L225 Difference]: With dead ends: 5678 [2022-02-09 04:08:45,560 INFO L226 Difference]: Without dead ends: 5623 [2022-02-09 04:08:45,560 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 836 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=318, Invalid=3104, Unknown=0, NotChecked=0, Total=3422 [2022-02-09 04:08:45,560 INFO L933 BasicCegarLoop]: 115 mSDtfsCounter, 317 mSDsluCounter, 1363 mSDsCounter, 0 mSdLazyCounter, 1942 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 04:08:45,560 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [317 Valid, 1140 Invalid, 2024 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 1942 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 04:08:45,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5623 states. [2022-02-09 04:08:45,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5623 to 5262. [2022-02-09 04:08:45,638 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) [2022-02-09 04:08:45,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5262 states to 5262 states and 17812 transitions. [2022-02-09 04:08:45,648 INFO L78 Accepts]: Start accepts. Automaton has 5262 states and 17812 transitions. Word has length 39 [2022-02-09 04:08:45,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:08:45,648 INFO L470 AbstractCegarLoop]: Abstraction has 5262 states and 17812 transitions. [2022-02-09 04:08:45,648 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:08:45,648 INFO L276 IsEmpty]: Start isEmpty. Operand 5262 states and 17812 transitions. [2022-02-09 04:08:45,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:08:45,655 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:08:45,655 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:08:45,655 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable353 [2022-02-09 04:08:45,655 INFO L402 AbstractCegarLoop]: === Iteration 355 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:08:45,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:08:45,655 INFO L85 PathProgramCache]: Analyzing trace with hash -1023840150, now seen corresponding path program 355 times [2022-02-09 04:08:45,655 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:08:45,655 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733895603] [2022-02-09 04:08:45,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:08:45,655 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:08:45,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:08:45,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:08:45,861 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:08:45,861 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733895603] [2022-02-09 04:08:45,861 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733895603] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:08:45,861 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:08:45,862 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:08:45,862 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512844176] [2022-02-09 04:08:45,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:08:45,862 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:08:45,862 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:08:45,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:08:45,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:08:45,862 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) [2022-02-09 04:08:47,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:08:47,168 INFO L93 Difference]: Finished difference Result 5636 states and 18835 transitions. [2022-02-09 04:08:47,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-02-09 04:08:47,168 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 [2022-02-09 04:08:47,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:08:47,179 INFO L225 Difference]: With dead ends: 5636 [2022-02-09 04:08:47,179 INFO L226 Difference]: Without dead ends: 5576 [2022-02-09 04:08:47,179 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 [2022-02-09 04:08:47,179 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 [2022-02-09 04:08:47,180 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] [2022-02-09 04:08:47,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5576 states. [2022-02-09 04:08:47,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5576 to 5268. [2022-02-09 04:08:47,237 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) [2022-02-09 04:08:47,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5268 states to 5268 states and 17828 transitions. [2022-02-09 04:08:47,247 INFO L78 Accepts]: Start accepts. Automaton has 5268 states and 17828 transitions. Word has length 39 [2022-02-09 04:08:47,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:08:47,247 INFO L470 AbstractCegarLoop]: Abstraction has 5268 states and 17828 transitions. [2022-02-09 04:08:47,247 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:08:47,247 INFO L276 IsEmpty]: Start isEmpty. Operand 5268 states and 17828 transitions. [2022-02-09 04:08:47,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:08:47,254 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:08:47,254 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:08:47,254 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable354 [2022-02-09 04:08:47,254 INFO L402 AbstractCegarLoop]: === Iteration 356 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:08:47,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:08:47,254 INFO L85 PathProgramCache]: Analyzing trace with hash -1091585030, now seen corresponding path program 356 times [2022-02-09 04:08:47,254 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:08:47,254 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004010985] [2022-02-09 04:08:47,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:08:47,254 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:08:47,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:08:47,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:08:47,459 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:08:47,459 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004010985] [2022-02-09 04:08:47,459 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004010985] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:08:47,459 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:08:47,460 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:08:47,460 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877410866] [2022-02-09 04:08:47,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:08:47,460 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:08:47,460 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:08:47,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:08:47,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:08:47,460 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) [2022-02-09 04:08:48,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:08:48,709 INFO L93 Difference]: Finished difference Result 5607 states and 18754 transitions. [2022-02-09 04:08:48,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-02-09 04:08:48,709 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:08:48,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:08:48,720 INFO L225 Difference]: With dead ends: 5607 [2022-02-09 04:08:48,720 INFO L226 Difference]: Without dead ends: 5564 [2022-02-09 04:08:48,721 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 [2022-02-09 04:08:48,721 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 [2022-02-09 04:08:48,721 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] [2022-02-09 04:08:48,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5564 states. [2022-02-09 04:08:48,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5564 to 5274. [2022-02-09 04:08:48,781 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) [2022-02-09 04:08:48,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5274 states to 5274 states and 17841 transitions. [2022-02-09 04:08:48,790 INFO L78 Accepts]: Start accepts. Automaton has 5274 states and 17841 transitions. Word has length 39 [2022-02-09 04:08:48,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:08:48,791 INFO L470 AbstractCegarLoop]: Abstraction has 5274 states and 17841 transitions. [2022-02-09 04:08:48,791 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:08:48,791 INFO L276 IsEmpty]: Start isEmpty. Operand 5274 states and 17841 transitions. [2022-02-09 04:08:48,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:08:48,798 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:08:48,798 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] [2022-02-09 04:08:48,798 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable355 [2022-02-09 04:08:48,798 INFO L402 AbstractCegarLoop]: === Iteration 357 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:08:48,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:08:48,798 INFO L85 PathProgramCache]: Analyzing trace with hash 658522106, now seen corresponding path program 357 times [2022-02-09 04:08:48,798 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:08:48,798 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202554673] [2022-02-09 04:08:48,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:08:48,798 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:08:48,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:08:49,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:08:49,003 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:08:49,004 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202554673] [2022-02-09 04:08:49,004 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202554673] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:08:49,004 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:08:49,004 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:08:49,004 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364960129] [2022-02-09 04:08:49,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:08:49,004 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:08:49,004 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:08:49,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:08:49,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:08:49,004 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) [2022-02-09 04:08:50,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:08:50,155 INFO L93 Difference]: Finished difference Result 5613 states and 18771 transitions. [2022-02-09 04:08:50,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-02-09 04:08:50,155 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:08:50,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:08:50,166 INFO L225 Difference]: With dead ends: 5613 [2022-02-09 04:08:50,167 INFO L226 Difference]: Without dead ends: 5562 [2022-02-09 04:08:50,167 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 [2022-02-09 04:08:50,167 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 [2022-02-09 04:08:50,167 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] [2022-02-09 04:08:50,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5562 states. [2022-02-09 04:08:50,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5562 to 5274. [2022-02-09 04:08:50,241 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) [2022-02-09 04:08:50,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5274 states to 5274 states and 17838 transitions. [2022-02-09 04:08:50,251 INFO L78 Accepts]: Start accepts. Automaton has 5274 states and 17838 transitions. Word has length 39 [2022-02-09 04:08:50,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:08:50,251 INFO L470 AbstractCegarLoop]: Abstraction has 5274 states and 17838 transitions. [2022-02-09 04:08:50,251 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:08:50,251 INFO L276 IsEmpty]: Start isEmpty. Operand 5274 states and 17838 transitions. [2022-02-09 04:08:50,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:08:50,258 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:08:50,258 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:08:50,258 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable356 [2022-02-09 04:08:50,258 INFO L402 AbstractCegarLoop]: === Iteration 358 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:08:50,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:08:50,258 INFO L85 PathProgramCache]: Analyzing trace with hash 1275740508, now seen corresponding path program 358 times [2022-02-09 04:08:50,258 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:08:50,259 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755874247] [2022-02-09 04:08:50,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:08:50,259 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:08:50,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:08:50,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:08:50,466 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:08:50,466 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755874247] [2022-02-09 04:08:50,466 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755874247] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:08:50,467 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:08:50,467 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:08:50,467 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819090889] [2022-02-09 04:08:50,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:08:50,467 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:08:50,467 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:08:50,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:08:50,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:08:50,467 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) [2022-02-09 04:08:51,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:08:51,704 INFO L93 Difference]: Finished difference Result 5609 states and 18750 transitions. [2022-02-09 04:08:51,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-02-09 04:08:51,705 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 [2022-02-09 04:08:51,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:08:51,715 INFO L225 Difference]: With dead ends: 5609 [2022-02-09 04:08:51,716 INFO L226 Difference]: Without dead ends: 5563 [2022-02-09 04:08:51,716 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 604 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=262, Invalid=2494, Unknown=0, NotChecked=0, Total=2756 [2022-02-09 04:08:51,716 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 04:08:51,716 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [279 Valid, 1074 Invalid, 1861 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 1807 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 04:08:51,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5563 states. [2022-02-09 04:08:51,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5563 to 5281. [2022-02-09 04:08:51,776 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) [2022-02-09 04:08:51,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5281 states to 5281 states and 17853 transitions. [2022-02-09 04:08:51,786 INFO L78 Accepts]: Start accepts. Automaton has 5281 states and 17853 transitions. Word has length 39 [2022-02-09 04:08:51,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:08:51,786 INFO L470 AbstractCegarLoop]: Abstraction has 5281 states and 17853 transitions. [2022-02-09 04:08:51,786 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:08:51,786 INFO L276 IsEmpty]: Start isEmpty. Operand 5281 states and 17853 transitions. [2022-02-09 04:08:51,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:08:51,793 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:08:51,793 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] [2022-02-09 04:08:51,793 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable357 [2022-02-09 04:08:51,793 INFO L402 AbstractCegarLoop]: === Iteration 359 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:08:51,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:08:51,794 INFO L85 PathProgramCache]: Analyzing trace with hash -159326982, now seen corresponding path program 359 times [2022-02-09 04:08:51,794 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:08:51,794 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983021757] [2022-02-09 04:08:51,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:08:51,794 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:08:51,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:08:52,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:08:52,002 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:08:52,002 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983021757] [2022-02-09 04:08:52,002 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983021757] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:08:52,002 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:08:52,002 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:08:52,002 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256358400] [2022-02-09 04:08:52,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:08:52,002 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:08:52,002 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:08:52,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:08:52,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:08:52,002 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) [2022-02-09 04:08:53,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:08:53,152 INFO L93 Difference]: Finished difference Result 5599 states and 18724 transitions. [2022-02-09 04:08:53,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-02-09 04:08:53,152 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:08:53,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:08:53,162 INFO L225 Difference]: With dead ends: 5599 [2022-02-09 04:08:53,163 INFO L226 Difference]: Without dead ends: 5544 [2022-02-09 04:08:53,163 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 [2022-02-09 04:08:53,163 INFO L933 BasicCegarLoop]: 102 mSDtfsCounter, 280 mSDsluCounter, 1213 mSDsCounter, 0 mSdLazyCounter, 1772 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 04:08:53,163 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [280 Valid, 990 Invalid, 1824 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 1772 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 04:08:53,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5544 states. [2022-02-09 04:08:53,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5544 to 5278. [2022-02-09 04:08:53,222 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) [2022-02-09 04:08:53,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5278 states to 5278 states and 17847 transitions. [2022-02-09 04:08:53,232 INFO L78 Accepts]: Start accepts. Automaton has 5278 states and 17847 transitions. Word has length 39 [2022-02-09 04:08:53,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:08:53,232 INFO L470 AbstractCegarLoop]: Abstraction has 5278 states and 17847 transitions. [2022-02-09 04:08:53,232 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) [2022-02-09 04:08:53,232 INFO L276 IsEmpty]: Start isEmpty. Operand 5278 states and 17847 transitions. [2022-02-09 04:08:53,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:08:53,239 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:08:53,239 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] [2022-02-09 04:08:53,239 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable358 [2022-02-09 04:08:53,239 INFO L402 AbstractCegarLoop]: === Iteration 360 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:08:53,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:08:53,240 INFO L85 PathProgramCache]: Analyzing trace with hash -1442030100, now seen corresponding path program 360 times [2022-02-09 04:08:53,240 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:08:53,240 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457817682] [2022-02-09 04:08:53,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:08:53,240 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:08:53,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:08:53,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:08:53,445 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:08:53,445 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457817682] [2022-02-09 04:08:53,445 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457817682] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:08:53,445 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:08:53,445 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:08:53,445 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651363543] [2022-02-09 04:08:53,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:08:53,446 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:08:53,446 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:08:53,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:08:53,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:08:53,446 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) [2022-02-09 04:08:54,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:08:54,627 INFO L93 Difference]: Finished difference Result 5652 states and 18840 transitions. [2022-02-09 04:08:54,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-02-09 04:08:54,627 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 [2022-02-09 04:08:54,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:08:54,638 INFO L225 Difference]: With dead ends: 5652 [2022-02-09 04:08:54,639 INFO L226 Difference]: Without dead ends: 5595 [2022-02-09 04:08:54,639 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 647 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=270, Invalid=2592, Unknown=0, NotChecked=0, Total=2862 [2022-02-09 04:08:54,639 INFO L933 BasicCegarLoop]: 104 mSDtfsCounter, 282 mSDsluCounter, 1232 mSDsCounter, 0 mSdLazyCounter, 1803 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 04:08:54,639 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [282 Valid, 1011 Invalid, 1861 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 1803 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 04:08:54,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5595 states. [2022-02-09 04:08:54,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5595 to 5278. [2022-02-09 04:08:54,715 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) [2022-02-09 04:08:54,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5278 states to 5278 states and 17846 transitions. [2022-02-09 04:08:54,724 INFO L78 Accepts]: Start accepts. Automaton has 5278 states and 17846 transitions. Word has length 39 [2022-02-09 04:08:54,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:08:54,724 INFO L470 AbstractCegarLoop]: Abstraction has 5278 states and 17846 transitions. [2022-02-09 04:08:54,725 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) [2022-02-09 04:08:54,725 INFO L276 IsEmpty]: Start isEmpty. Operand 5278 states and 17846 transitions. [2022-02-09 04:08:54,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:08:54,732 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:08:54,732 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] [2022-02-09 04:08:54,732 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable359 [2022-02-09 04:08:54,732 INFO L402 AbstractCegarLoop]: === Iteration 361 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:08:54,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:08:54,732 INFO L85 PathProgramCache]: Analyzing trace with hash 1135459016, now seen corresponding path program 361 times [2022-02-09 04:08:54,732 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:08:54,732 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217178383] [2022-02-09 04:08:54,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:08:54,732 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:08:54,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:08:54,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:08:54,940 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:08:54,940 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217178383] [2022-02-09 04:08:54,940 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217178383] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:08:54,940 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:08:54,940 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:08:54,940 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978350765] [2022-02-09 04:08:54,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:08:54,940 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:08:54,940 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:08:54,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:08:54,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:08:54,941 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) [2022-02-09 04:08:56,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:08:56,143 INFO L93 Difference]: Finished difference Result 5653 states and 18841 transitions. [2022-02-09 04:08:56,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-02-09 04:08:56,143 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:08:56,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:08:56,154 INFO L225 Difference]: With dead ends: 5653 [2022-02-09 04:08:56,154 INFO L226 Difference]: Without dead ends: 5594 [2022-02-09 04:08:56,155 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 646 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=272, Invalid=2590, Unknown=0, NotChecked=0, Total=2862 [2022-02-09 04:08:56,155 INFO L933 BasicCegarLoop]: 104 mSDtfsCounter, 283 mSDsluCounter, 1233 mSDsCounter, 0 mSdLazyCounter, 1774 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 04:08:56,155 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [283 Valid, 1014 Invalid, 1832 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 1774 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 04:08:56,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5594 states. [2022-02-09 04:08:56,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5594 to 5277. [2022-02-09 04:08:56,218 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) [2022-02-09 04:08:56,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5277 states to 5277 states and 17844 transitions. [2022-02-09 04:08:56,228 INFO L78 Accepts]: Start accepts. Automaton has 5277 states and 17844 transitions. Word has length 39 [2022-02-09 04:08:56,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:08:56,228 INFO L470 AbstractCegarLoop]: Abstraction has 5277 states and 17844 transitions. [2022-02-09 04:08:56,228 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) [2022-02-09 04:08:56,229 INFO L276 IsEmpty]: Start isEmpty. Operand 5277 states and 17844 transitions. [2022-02-09 04:08:56,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:08:56,235 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:08:56,235 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] [2022-02-09 04:08:56,235 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable360 [2022-02-09 04:08:56,235 INFO L402 AbstractCegarLoop]: === Iteration 362 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:08:56,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:08:56,236 INFO L85 PathProgramCache]: Analyzing trace with hash -103273512, now seen corresponding path program 362 times [2022-02-09 04:08:56,236 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:08:56,236 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537330963] [2022-02-09 04:08:56,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:08:56,236 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:08:56,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:08:56,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:08:56,443 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:08:56,443 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537330963] [2022-02-09 04:08:56,443 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537330963] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:08:56,443 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:08:56,443 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:08:56,443 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240440559] [2022-02-09 04:08:56,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:08:56,443 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:08:56,444 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:08:56,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:08:56,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:08:56,444 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) [2022-02-09 04:08:57,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:08:57,561 INFO L93 Difference]: Finished difference Result 5561 states and 18637 transitions. [2022-02-09 04:08:57,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-02-09 04:08:57,561 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:08:57,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:08:57,572 INFO L225 Difference]: With dead ends: 5561 [2022-02-09 04:08:57,572 INFO L226 Difference]: Without dead ends: 5486 [2022-02-09 04:08:57,573 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 543 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=237, Invalid=2313, Unknown=0, NotChecked=0, Total=2550 [2022-02-09 04:08:57,573 INFO L933 BasicCegarLoop]: 111 mSDtfsCounter, 263 mSDsluCounter, 1273 mSDsCounter, 0 mSdLazyCounter, 1778 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 04:08:57,573 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [263 Valid, 1076 Invalid, 1826 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 1778 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 04:08:57,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5486 states. [2022-02-09 04:08:57,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5486 to 5263. [2022-02-09 04:08:57,633 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) [2022-02-09 04:08:57,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5263 states to 5263 states and 17808 transitions. [2022-02-09 04:08:57,642 INFO L78 Accepts]: Start accepts. Automaton has 5263 states and 17808 transitions. Word has length 39 [2022-02-09 04:08:57,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:08:57,642 INFO L470 AbstractCegarLoop]: Abstraction has 5263 states and 17808 transitions. [2022-02-09 04:08:57,643 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:08:57,643 INFO L276 IsEmpty]: Start isEmpty. Operand 5263 states and 17808 transitions. [2022-02-09 04:08:57,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:08:57,649 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:08:57,649 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:08:57,650 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable361 [2022-02-09 04:08:57,650 INFO L402 AbstractCegarLoop]: === Iteration 363 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:08:57,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:08:57,650 INFO L85 PathProgramCache]: Analyzing trace with hash 60473304, now seen corresponding path program 363 times [2022-02-09 04:08:57,650 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:08:57,650 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299790838] [2022-02-09 04:08:57,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:08:57,650 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:08:57,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:08:57,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:08:57,856 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:08:57,856 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299790838] [2022-02-09 04:08:57,856 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299790838] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:08:57,856 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:08:57,857 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:08:57,857 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479232484] [2022-02-09 04:08:57,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:08:57,857 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:08:57,857 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:08:57,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:08:57,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:08:57,857 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) [2022-02-09 04:08:58,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:08:58,935 INFO L93 Difference]: Finished difference Result 5480 states and 18458 transitions. [2022-02-09 04:08:58,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-02-09 04:08:58,936 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:08:58,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:08:58,946 INFO L225 Difference]: With dead ends: 5480 [2022-02-09 04:08:58,946 INFO L226 Difference]: Without dead ends: 5393 [2022-02-09 04:08:58,947 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 [2022-02-09 04:08:58,947 INFO L933 BasicCegarLoop]: 107 mSDtfsCounter, 227 mSDsluCounter, 1232 mSDsCounter, 0 mSdLazyCounter, 1724 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.5s IncrementalHoareTripleChecker+Time [2022-02-09 04:08:58,947 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [227 Valid, 1023 Invalid, 1769 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 1724 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-09 04:08:58,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5393 states. [2022-02-09 04:08:59,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5393 to 5237. [2022-02-09 04:08:59,025 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) [2022-02-09 04:08:59,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5237 states to 5237 states and 17747 transitions. [2022-02-09 04:08:59,036 INFO L78 Accepts]: Start accepts. Automaton has 5237 states and 17747 transitions. Word has length 39 [2022-02-09 04:08:59,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:08:59,036 INFO L470 AbstractCegarLoop]: Abstraction has 5237 states and 17747 transitions. [2022-02-09 04:08:59,036 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:08:59,036 INFO L276 IsEmpty]: Start isEmpty. Operand 5237 states and 17747 transitions. [2022-02-09 04:08:59,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:08:59,043 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:08:59,043 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:08:59,043 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable362 [2022-02-09 04:08:59,043 INFO L402 AbstractCegarLoop]: === Iteration 364 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:08:59,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:08:59,043 INFO L85 PathProgramCache]: Analyzing trace with hash 692633254, now seen corresponding path program 364 times [2022-02-09 04:08:59,044 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:08:59,044 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037440789] [2022-02-09 04:08:59,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:08:59,044 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:08:59,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:08:59,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:08:59,253 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:08:59,253 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037440789] [2022-02-09 04:08:59,253 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037440789] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:08:59,253 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:08:59,254 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:08:59,254 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87627905] [2022-02-09 04:08:59,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:08:59,254 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:08:59,254 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:08:59,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:08:59,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:08:59,254 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) [2022-02-09 04:09:00,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:09:00,810 INFO L93 Difference]: Finished difference Result 5863 states and 19501 transitions. [2022-02-09 04:09:00,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-02-09 04:09:00,811 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:09:00,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:09:00,822 INFO L225 Difference]: With dead ends: 5863 [2022-02-09 04:09:00,823 INFO L226 Difference]: Without dead ends: 5799 [2022-02-09 04:09:00,823 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1092 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=349, Invalid=3811, Unknown=0, NotChecked=0, Total=4160 [2022-02-09 04:09:00,823 INFO L933 BasicCegarLoop]: 132 mSDtfsCounter, 344 mSDsluCounter, 1594 mSDsCounter, 0 mSdLazyCounter, 2248 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.7s IncrementalHoareTripleChecker+Time [2022-02-09 04:09:00,823 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [344 Valid, 1360 Invalid, 2317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 2248 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-09 04:09:00,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5799 states. [2022-02-09 04:09:00,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5799 to 5241. [2022-02-09 04:09:00,889 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) [2022-02-09 04:09:00,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5241 states to 5241 states and 17757 transitions. [2022-02-09 04:09:00,899 INFO L78 Accepts]: Start accepts. Automaton has 5241 states and 17757 transitions. Word has length 39 [2022-02-09 04:09:00,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:09:00,899 INFO L470 AbstractCegarLoop]: Abstraction has 5241 states and 17757 transitions. [2022-02-09 04:09:00,899 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) [2022-02-09 04:09:00,899 INFO L276 IsEmpty]: Start isEmpty. Operand 5241 states and 17757 transitions. [2022-02-09 04:09:00,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:09:00,906 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:09:00,906 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] [2022-02-09 04:09:00,906 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable363 [2022-02-09 04:09:00,906 INFO L402 AbstractCegarLoop]: === Iteration 365 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:09:00,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:09:00,906 INFO L85 PathProgramCache]: Analyzing trace with hash 1611116824, now seen corresponding path program 365 times [2022-02-09 04:09:00,907 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:09:00,907 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447242058] [2022-02-09 04:09:00,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:09:00,907 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:09:00,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:09:01,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:09:01,118 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:09:01,118 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447242058] [2022-02-09 04:09:01,118 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447242058] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:09:01,118 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:09:01,132 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:09:01,132 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715591544] [2022-02-09 04:09:01,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:09:01,132 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:09:01,132 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:09:01,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:09:01,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:09:01,133 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) [2022-02-09 04:09:02,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:09:02,192 INFO L93 Difference]: Finished difference Result 5680 states and 18997 transitions. [2022-02-09 04:09:02,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-02-09 04:09:02,192 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:09:02,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:09:02,203 INFO L225 Difference]: With dead ends: 5680 [2022-02-09 04:09:02,203 INFO L226 Difference]: Without dead ends: 5637 [2022-02-09 04:09:02,203 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 479 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=223, Invalid=2129, Unknown=0, NotChecked=0, Total=2352 [2022-02-09 04:09:02,203 INFO L933 BasicCegarLoop]: 108 mSDtfsCounter, 271 mSDsluCounter, 1365 mSDsCounter, 0 mSdLazyCounter, 1852 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 04:09:02,204 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [271 Valid, 1071 Invalid, 1895 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 1852 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 04:09:02,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5637 states. [2022-02-09 04:09:02,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5637 to 5247. [2022-02-09 04:09:02,262 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) [2022-02-09 04:09:02,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5247 states to 5247 states and 17770 transitions. [2022-02-09 04:09:02,272 INFO L78 Accepts]: Start accepts. Automaton has 5247 states and 17770 transitions. Word has length 39 [2022-02-09 04:09:02,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:09:02,272 INFO L470 AbstractCegarLoop]: Abstraction has 5247 states and 17770 transitions. [2022-02-09 04:09:02,272 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:09:02,272 INFO L276 IsEmpty]: Start isEmpty. Operand 5247 states and 17770 transitions. [2022-02-09 04:09:02,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:09:02,279 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:09:02,279 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:09:02,279 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable364 [2022-02-09 04:09:02,279 INFO L402 AbstractCegarLoop]: === Iteration 366 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:09:02,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:09:02,279 INFO L85 PathProgramCache]: Analyzing trace with hash 1631265558, now seen corresponding path program 366 times [2022-02-09 04:09:02,279 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:09:02,280 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049625284] [2022-02-09 04:09:02,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:09:02,280 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:09:02,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:09:02,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:09:02,484 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:09:02,484 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049625284] [2022-02-09 04:09:02,484 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049625284] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:09:02,484 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:09:02,484 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:09:02,484 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611041520] [2022-02-09 04:09:02,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:09:02,485 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:09:02,485 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:09:02,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:09:02,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:09:02,485 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) [2022-02-09 04:09:03,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:09:03,558 INFO L93 Difference]: Finished difference Result 5643 states and 18915 transitions. [2022-02-09 04:09:03,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-02-09 04:09:03,559 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:09:03,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:09:03,569 INFO L225 Difference]: With dead ends: 5643 [2022-02-09 04:09:03,569 INFO L226 Difference]: Without dead ends: 5600 [2022-02-09 04:09:03,570 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 [2022-02-09 04:09:03,570 INFO L933 BasicCegarLoop]: 107 mSDtfsCounter, 263 mSDsluCounter, 1347 mSDsCounter, 0 mSdLazyCounter, 1819 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 04:09:03,570 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [263 Valid, 1064 Invalid, 1863 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 1819 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 04:09:03,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5600 states. [2022-02-09 04:09:03,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5600 to 5243. [2022-02-09 04:09:03,647 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) [2022-02-09 04:09:03,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5243 states to 5243 states and 17760 transitions. [2022-02-09 04:09:03,659 INFO L78 Accepts]: Start accepts. Automaton has 5243 states and 17760 transitions. Word has length 39 [2022-02-09 04:09:03,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:09:03,659 INFO L470 AbstractCegarLoop]: Abstraction has 5243 states and 17760 transitions. [2022-02-09 04:09:03,659 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) [2022-02-09 04:09:03,659 INFO L276 IsEmpty]: Start isEmpty. Operand 5243 states and 17760 transitions. [2022-02-09 04:09:03,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:09:03,667 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:09:03,667 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] [2022-02-09 04:09:03,667 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable365 [2022-02-09 04:09:03,667 INFO L402 AbstractCegarLoop]: === Iteration 367 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:09:03,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:09:03,667 INFO L85 PathProgramCache]: Analyzing trace with hash -1511198250, now seen corresponding path program 367 times [2022-02-09 04:09:03,667 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:09:03,667 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116299839] [2022-02-09 04:09:03,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:09:03,667 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:09:03,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:09:03,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:09:03,876 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:09:03,876 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116299839] [2022-02-09 04:09:03,876 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116299839] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:09:03,876 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:09:03,876 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:09:03,876 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305063111] [2022-02-09 04:09:03,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:09:03,877 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:09:03,877 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:09:03,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:09:03,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:09:03,877 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) [2022-02-09 04:09:05,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:09:05,060 INFO L93 Difference]: Finished difference Result 5714 states and 19112 transitions. [2022-02-09 04:09:05,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-02-09 04:09:05,060 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:09:05,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:09:05,072 INFO L225 Difference]: With dead ends: 5714 [2022-02-09 04:09:05,072 INFO L226 Difference]: Without dead ends: 5654 [2022-02-09 04:09:05,072 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 [2022-02-09 04:09:05,072 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 04:09:05,072 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [302 Valid, 1166 Invalid, 1927 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 1867 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 04:09:05,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5654 states. [2022-02-09 04:09:05,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5654 to 5237. [2022-02-09 04:09:05,135 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) [2022-02-09 04:09:05,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5237 states to 5237 states and 17747 transitions. [2022-02-09 04:09:05,145 INFO L78 Accepts]: Start accepts. Automaton has 5237 states and 17747 transitions. Word has length 39 [2022-02-09 04:09:05,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:09:05,145 INFO L470 AbstractCegarLoop]: Abstraction has 5237 states and 17747 transitions. [2022-02-09 04:09:05,145 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) [2022-02-09 04:09:05,145 INFO L276 IsEmpty]: Start isEmpty. Operand 5237 states and 17747 transitions. [2022-02-09 04:09:05,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:09:05,152 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:09:05,152 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:09:05,152 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable366 [2022-02-09 04:09:05,153 INFO L402 AbstractCegarLoop]: === Iteration 368 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:09:05,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:09:05,153 INFO L85 PathProgramCache]: Analyzing trace with hash 704202504, now seen corresponding path program 368 times [2022-02-09 04:09:05,153 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:09:05,153 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014722084] [2022-02-09 04:09:05,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:09:05,153 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:09:05,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:09:05,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:09:05,354 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:09:05,354 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014722084] [2022-02-09 04:09:05,354 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014722084] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:09:05,354 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:09:05,354 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:09:05,354 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117701037] [2022-02-09 04:09:05,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:09:05,355 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:09:05,355 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:09:05,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:09:05,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:09:05,355 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) [2022-02-09 04:09:06,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:09:06,401 INFO L93 Difference]: Finished difference Result 5682 states and 19052 transitions. [2022-02-09 04:09:06,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-02-09 04:09:06,401 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 [2022-02-09 04:09:06,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:09:06,412 INFO L225 Difference]: With dead ends: 5682 [2022-02-09 04:09:06,412 INFO L226 Difference]: Without dead ends: 5606 [2022-02-09 04:09:06,412 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 484 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=214, Invalid=2042, Unknown=0, NotChecked=0, Total=2256 [2022-02-09 04:09:06,412 INFO L933 BasicCegarLoop]: 115 mSDtfsCounter, 268 mSDsluCounter, 1245 mSDsCounter, 0 mSdLazyCounter, 1707 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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 [2022-02-09 04:09:06,413 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] [2022-02-09 04:09:06,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5606 states. [2022-02-09 04:09:06,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5606 to 5249. [2022-02-09 04:09:06,471 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) [2022-02-09 04:09:06,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5249 states to 5249 states and 17771 transitions. [2022-02-09 04:09:06,481 INFO L78 Accepts]: Start accepts. Automaton has 5249 states and 17771 transitions. Word has length 39 [2022-02-09 04:09:06,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:09:06,481 INFO L470 AbstractCegarLoop]: Abstraction has 5249 states and 17771 transitions. [2022-02-09 04:09:06,481 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) [2022-02-09 04:09:06,481 INFO L276 IsEmpty]: Start isEmpty. Operand 5249 states and 17771 transitions. [2022-02-09 04:09:06,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:09:06,488 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:09:06,488 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] [2022-02-09 04:09:06,488 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable367 [2022-02-09 04:09:06,488 INFO L402 AbstractCegarLoop]: === Iteration 369 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:09:06,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:09:06,489 INFO L85 PathProgramCache]: Analyzing trace with hash -313851108, now seen corresponding path program 369 times [2022-02-09 04:09:06,489 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:09:06,489 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12445995] [2022-02-09 04:09:06,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:09:06,489 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:09:06,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:09:06,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:09:06,697 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:09:06,697 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12445995] [2022-02-09 04:09:06,697 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12445995] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:09:06,697 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:09:06,697 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:09:06,697 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196962026] [2022-02-09 04:09:06,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:09:06,697 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:09:06,697 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:09:06,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:09:06,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:09:06,697 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) [2022-02-09 04:09:07,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:09:07,828 INFO L93 Difference]: Finished difference Result 5664 states and 18998 transitions. [2022-02-09 04:09:07,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-02-09 04:09:07,828 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 [2022-02-09 04:09:07,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:09:07,840 INFO L225 Difference]: With dead ends: 5664 [2022-02-09 04:09:07,840 INFO L226 Difference]: Without dead ends: 5594 [2022-02-09 04:09:07,840 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 547 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=233, Invalid=2317, Unknown=0, NotChecked=0, Total=2550 [2022-02-09 04:09:07,840 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 [2022-02-09 04:09:07,840 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] [2022-02-09 04:09:07,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5594 states. [2022-02-09 04:09:07,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5594 to 5237. [2022-02-09 04:09:07,916 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) [2022-02-09 04:09:07,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5237 states to 5237 states and 17743 transitions. [2022-02-09 04:09:07,926 INFO L78 Accepts]: Start accepts. Automaton has 5237 states and 17743 transitions. Word has length 39 [2022-02-09 04:09:07,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:09:07,927 INFO L470 AbstractCegarLoop]: Abstraction has 5237 states and 17743 transitions. [2022-02-09 04:09:07,927 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:09:07,927 INFO L276 IsEmpty]: Start isEmpty. Operand 5237 states and 17743 transitions. [2022-02-09 04:09:07,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:09:07,934 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:09:07,934 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] [2022-02-09 04:09:07,934 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable368 [2022-02-09 04:09:07,934 INFO L402 AbstractCegarLoop]: === Iteration 370 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:09:07,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:09:07,934 INFO L85 PathProgramCache]: Analyzing trace with hash 532332572, now seen corresponding path program 370 times [2022-02-09 04:09:07,935 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:09:07,935 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257184303] [2022-02-09 04:09:07,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:09:07,935 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:09:07,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:09:08,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:09:08,157 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:09:08,157 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257184303] [2022-02-09 04:09:08,157 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257184303] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:09:08,157 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:09:08,157 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:09:08,157 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137857502] [2022-02-09 04:09:08,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:09:08,157 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:09:08,157 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:09:08,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:09:08,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:09:08,158 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) [2022-02-09 04:09:10,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:09:10,142 INFO L93 Difference]: Finished difference Result 8130 states and 27321 transitions. [2022-02-09 04:09:10,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2022-02-09 04:09:10,142 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:09:10,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:09:10,160 INFO L225 Difference]: With dead ends: 8130 [2022-02-09 04:09:10,160 INFO L226 Difference]: Without dead ends: 8024 [2022-02-09 04:09:10,160 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1649 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=457, Invalid=5243, Unknown=0, NotChecked=0, Total=5700 [2022-02-09 04:09:10,161 INFO L933 BasicCegarLoop]: 206 mSDtfsCounter, 512 mSDsluCounter, 2343 mSDsCounter, 0 mSdLazyCounter, 2857 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s 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, 0.9s IncrementalHoareTripleChecker+Time [2022-02-09 04:09:10,161 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [512 Valid, 2226 Invalid, 2964 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 2857 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-09 04:09:10,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8024 states. [2022-02-09 04:09:10,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8024 to 5290. [2022-02-09 04:09:10,260 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) [2022-02-09 04:09:10,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5290 states to 5290 states and 17925 transitions. [2022-02-09 04:09:10,271 INFO L78 Accepts]: Start accepts. Automaton has 5290 states and 17925 transitions. Word has length 39 [2022-02-09 04:09:10,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:09:10,271 INFO L470 AbstractCegarLoop]: Abstraction has 5290 states and 17925 transitions. [2022-02-09 04:09:10,271 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:09:10,271 INFO L276 IsEmpty]: Start isEmpty. Operand 5290 states and 17925 transitions. [2022-02-09 04:09:10,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:09:10,278 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:09:10,278 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:09:10,278 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable369 [2022-02-09 04:09:10,278 INFO L402 AbstractCegarLoop]: === Iteration 371 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:09:10,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:09:10,279 INFO L85 PathProgramCache]: Analyzing trace with hash -1248265730, now seen corresponding path program 371 times [2022-02-09 04:09:10,279 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:09:10,279 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328454330] [2022-02-09 04:09:10,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:09:10,279 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:09:10,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:09:10,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:09:10,486 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:09:10,486 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328454330] [2022-02-09 04:09:10,486 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328454330] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:09:10,486 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:09:10,486 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:09:10,486 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938484982] [2022-02-09 04:09:10,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:09:10,486 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:09:10,486 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:09:10,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:09:10,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:09:10,487 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) [2022-02-09 04:09:12,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:09:12,720 INFO L93 Difference]: Finished difference Result 8948 states and 30175 transitions. [2022-02-09 04:09:12,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2022-02-09 04:09:12,720 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:09:12,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:09:12,738 INFO L225 Difference]: With dead ends: 8948 [2022-02-09 04:09:12,738 INFO L226 Difference]: Without dead ends: 8896 [2022-02-09 04:09:12,739 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2071 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=513, Invalid=6293, Unknown=0, NotChecked=0, Total=6806 [2022-02-09 04:09:12,739 INFO L933 BasicCegarLoop]: 237 mSDtfsCounter, 550 mSDsluCounter, 2654 mSDsCounter, 0 mSdLazyCounter, 3226 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s 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, 1.0s IncrementalHoareTripleChecker+Time [2022-02-09 04:09:12,739 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [550 Valid, 2573 Invalid, 3340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 3226 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-02-09 04:09:12,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8896 states. [2022-02-09 04:09:12,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8896 to 5264. [2022-02-09 04:09:12,837 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) [2022-02-09 04:09:12,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5264 states to 5264 states and 17842 transitions. [2022-02-09 04:09:12,847 INFO L78 Accepts]: Start accepts. Automaton has 5264 states and 17842 transitions. Word has length 39 [2022-02-09 04:09:12,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:09:12,847 INFO L470 AbstractCegarLoop]: Abstraction has 5264 states and 17842 transitions. [2022-02-09 04:09:12,847 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:09:12,847 INFO L276 IsEmpty]: Start isEmpty. Operand 5264 states and 17842 transitions. [2022-02-09 04:09:12,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:09:12,854 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:09:12,854 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:09:12,854 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable370 [2022-02-09 04:09:12,854 INFO L402 AbstractCegarLoop]: === Iteration 372 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:09:12,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:09:12,855 INFO L85 PathProgramCache]: Analyzing trace with hash 1450816142, now seen corresponding path program 372 times [2022-02-09 04:09:12,855 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:09:12,855 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200462414] [2022-02-09 04:09:12,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:09:12,855 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:09:12,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:09:13,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:09:13,094 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:09:13,094 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200462414] [2022-02-09 04:09:13,094 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200462414] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:09:13,094 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:09:13,094 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:09:13,094 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850849008] [2022-02-09 04:09:13,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:09:13,094 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:09:13,094 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:09:13,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:09:13,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:09:13,095 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) [2022-02-09 04:09:14,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:09:14,412 INFO L93 Difference]: Finished difference Result 7462 states and 24986 transitions. [2022-02-09 04:09:14,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-02-09 04:09:14,413 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 [2022-02-09 04:09:14,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:09:14,427 INFO L225 Difference]: With dead ends: 7462 [2022-02-09 04:09:14,427 INFO L226 Difference]: Without dead ends: 7407 [2022-02-09 04:09:14,428 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 646 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=266, Invalid=2596, Unknown=0, NotChecked=0, Total=2862 [2022-02-09 04:09:14,428 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 [2022-02-09 04:09:14,428 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] [2022-02-09 04:09:14,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7407 states. [2022-02-09 04:09:14,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7407 to 5290. [2022-02-09 04:09:14,499 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) [2022-02-09 04:09:14,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5290 states to 5290 states and 17932 transitions. [2022-02-09 04:09:14,544 INFO L78 Accepts]: Start accepts. Automaton has 5290 states and 17932 transitions. Word has length 39 [2022-02-09 04:09:14,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:09:14,544 INFO L470 AbstractCegarLoop]: Abstraction has 5290 states and 17932 transitions. [2022-02-09 04:09:14,544 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) [2022-02-09 04:09:14,544 INFO L276 IsEmpty]: Start isEmpty. Operand 5290 states and 17932 transitions. [2022-02-09 04:09:14,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:09:14,550 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:09:14,551 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] [2022-02-09 04:09:14,551 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable371 [2022-02-09 04:09:14,551 INFO L402 AbstractCegarLoop]: === Iteration 373 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:09:14,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:09:14,551 INFO L85 PathProgramCache]: Analyzing trace with hash -1671498932, now seen corresponding path program 373 times [2022-02-09 04:09:14,551 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:09:14,551 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759137774] [2022-02-09 04:09:14,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:09:14,551 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:09:14,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:09:14,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:09:14,758 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:09:14,758 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759137774] [2022-02-09 04:09:14,758 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759137774] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:09:14,758 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:09:14,758 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:09:14,758 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561409833] [2022-02-09 04:09:14,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:09:14,758 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:09:14,758 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:09:14,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:09:14,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:09:14,759 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) [2022-02-09 04:09:16,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:09:16,488 INFO L93 Difference]: Finished difference Result 8195 states and 27530 transitions. [2022-02-09 04:09:16,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-02-09 04:09:16,488 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:09:16,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:09:16,505 INFO L225 Difference]: With dead ends: 8195 [2022-02-09 04:09:16,505 INFO L226 Difference]: Without dead ends: 8135 [2022-02-09 04:09:16,506 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1085 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=357, Invalid=3803, Unknown=0, NotChecked=0, Total=4160 [2022-02-09 04:09:16,506 INFO L933 BasicCegarLoop]: 217 mSDtfsCounter, 441 mSDsluCounter, 2390 mSDsCounter, 0 mSdLazyCounter, 2812 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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, 0.9s IncrementalHoareTripleChecker+Time [2022-02-09 04:09:16,506 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [441 Valid, 2295 Invalid, 2885 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 2812 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-09 04:09:16,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8135 states. [2022-02-09 04:09:16,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8135 to 5288. [2022-02-09 04:09:16,585 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) [2022-02-09 04:09:16,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5288 states to 5288 states and 17927 transitions. [2022-02-09 04:09:16,631 INFO L78 Accepts]: Start accepts. Automaton has 5288 states and 17927 transitions. Word has length 39 [2022-02-09 04:09:16,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:09:16,631 INFO L470 AbstractCegarLoop]: Abstraction has 5288 states and 17927 transitions. [2022-02-09 04:09:16,631 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:09:16,631 INFO L276 IsEmpty]: Start isEmpty. Operand 5288 states and 17927 transitions. [2022-02-09 04:09:16,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:09:16,638 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:09:16,638 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:09:16,638 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable372 [2022-02-09 04:09:16,638 INFO L402 AbstractCegarLoop]: === Iteration 374 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:09:16,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:09:16,638 INFO L85 PathProgramCache]: Analyzing trace with hash 746064762, now seen corresponding path program 374 times [2022-02-09 04:09:16,638 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:09:16,639 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079326077] [2022-02-09 04:09:16,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:09:16,639 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:09:16,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:09:16,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:09:16,852 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:09:16,852 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079326077] [2022-02-09 04:09:16,852 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079326077] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:09:16,852 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:09:16,852 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:09:16,852 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747265429] [2022-02-09 04:09:16,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:09:16,852 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:09:16,852 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:09:16,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:09:16,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:09:16,853 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) [2022-02-09 04:09:18,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:09:18,106 INFO L93 Difference]: Finished difference Result 7383 states and 24812 transitions. [2022-02-09 04:09:18,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-02-09 04:09:18,106 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 [2022-02-09 04:09:18,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:09:18,121 INFO L225 Difference]: With dead ends: 7383 [2022-02-09 04:09:18,121 INFO L226 Difference]: Without dead ends: 7292 [2022-02-09 04:09:18,122 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 [2022-02-09 04:09:18,122 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 [2022-02-09 04:09:18,122 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] [2022-02-09 04:09:18,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7292 states. [2022-02-09 04:09:18,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7292 to 5288. [2022-02-09 04:09:18,194 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) [2022-02-09 04:09:18,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5288 states to 5288 states and 17921 transitions. [2022-02-09 04:09:18,203 INFO L78 Accepts]: Start accepts. Automaton has 5288 states and 17921 transitions. Word has length 39 [2022-02-09 04:09:18,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:09:18,204 INFO L470 AbstractCegarLoop]: Abstraction has 5288 states and 17921 transitions. [2022-02-09 04:09:18,204 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) [2022-02-09 04:09:18,204 INFO L276 IsEmpty]: Start isEmpty. Operand 5288 states and 17921 transitions. [2022-02-09 04:09:18,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:09:18,210 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:09:18,211 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:09:18,211 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable373 [2022-02-09 04:09:18,211 INFO L402 AbstractCegarLoop]: === Iteration 375 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:09:18,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:09:18,211 INFO L85 PathProgramCache]: Analyzing trace with hash -756417444, now seen corresponding path program 375 times [2022-02-09 04:09:18,211 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:09:18,211 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845792072] [2022-02-09 04:09:18,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:09:18,211 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:09:18,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:09:18,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:09:18,422 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:09:18,422 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845792072] [2022-02-09 04:09:18,422 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845792072] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:09:18,422 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:09:18,422 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:09:18,422 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493986615] [2022-02-09 04:09:18,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:09:18,422 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:09:18,422 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:09:18,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:09:18,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:09:18,423 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) [2022-02-09 04:09:20,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:09:20,232 INFO L93 Difference]: Finished difference Result 8285 states and 27895 transitions. [2022-02-09 04:09:20,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-02-09 04:09:20,232 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 [2022-02-09 04:09:20,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:09:20,248 INFO L225 Difference]: With dead ends: 8285 [2022-02-09 04:09:20,248 INFO L226 Difference]: Without dead ends: 8185 [2022-02-09 04:09:20,249 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 [2022-02-09 04:09:20,249 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 [2022-02-09 04:09:20,249 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] [2022-02-09 04:09:20,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8185 states. [2022-02-09 04:09:20,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8185 to 5282. [2022-02-09 04:09:20,327 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) [2022-02-09 04:09:20,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5282 states to 5282 states and 17902 transitions. [2022-02-09 04:09:20,337 INFO L78 Accepts]: Start accepts. Automaton has 5282 states and 17902 transitions. Word has length 39 [2022-02-09 04:09:20,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:09:20,337 INFO L470 AbstractCegarLoop]: Abstraction has 5282 states and 17902 transitions. [2022-02-09 04:09:20,337 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:09:20,337 INFO L276 IsEmpty]: Start isEmpty. Operand 5282 states and 17902 transitions. [2022-02-09 04:09:20,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:09:20,344 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:09:20,344 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:09:20,344 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable374 [2022-02-09 04:09:20,344 INFO L402 AbstractCegarLoop]: === Iteration 376 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:09:20,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:09:20,344 INFO L85 PathProgramCache]: Analyzing trace with hash -993042440, now seen corresponding path program 376 times [2022-02-09 04:09:20,344 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:09:20,344 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418038258] [2022-02-09 04:09:20,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:09:20,345 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:09:20,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:09:20,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:09:20,541 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:09:20,541 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418038258] [2022-02-09 04:09:20,541 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418038258] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:09:20,541 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:09:20,541 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:09:20,541 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409394041] [2022-02-09 04:09:20,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:09:20,542 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:09:20,542 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:09:20,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:09:20,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:09:20,542 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) [2022-02-09 04:09:21,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:09:21,530 INFO L93 Difference]: Finished difference Result 5634 states and 18942 transitions. [2022-02-09 04:09:21,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-02-09 04:09:21,530 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 [2022-02-09 04:09:21,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:09:21,541 INFO L225 Difference]: With dead ends: 5634 [2022-02-09 04:09:21,541 INFO L226 Difference]: Without dead ends: 5558 [2022-02-09 04:09:21,542 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 [2022-02-09 04:09:21,542 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 [2022-02-09 04:09:21,542 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] [2022-02-09 04:09:21,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5558 states. [2022-02-09 04:09:21,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5558 to 5326. [2022-02-09 04:09:21,600 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) [2022-02-09 04:09:21,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5326 states to 5326 states and 18032 transitions. [2022-02-09 04:09:21,610 INFO L78 Accepts]: Start accepts. Automaton has 5326 states and 18032 transitions. Word has length 39 [2022-02-09 04:09:21,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:09:21,610 INFO L470 AbstractCegarLoop]: Abstraction has 5326 states and 18032 transitions. [2022-02-09 04:09:21,610 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) [2022-02-09 04:09:21,610 INFO L276 IsEmpty]: Start isEmpty. Operand 5326 states and 18032 transitions. [2022-02-09 04:09:21,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:09:21,617 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:09:21,617 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:09:21,617 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable375 [2022-02-09 04:09:21,617 INFO L402 AbstractCegarLoop]: === Iteration 377 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:09:21,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:09:21,618 INFO L85 PathProgramCache]: Analyzing trace with hash -2011096052, now seen corresponding path program 377 times [2022-02-09 04:09:21,618 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:09:21,618 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854668263] [2022-02-09 04:09:21,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:09:21,618 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:09:21,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:09:21,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:09:21,824 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:09:21,824 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854668263] [2022-02-09 04:09:21,824 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854668263] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:09:21,824 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:09:21,824 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:09:21,824 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790008412] [2022-02-09 04:09:21,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:09:21,825 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:09:21,825 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:09:21,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:09:21,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:09:21,825 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) [2022-02-09 04:09:22,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:09:22,906 INFO L93 Difference]: Finished difference Result 5616 states and 18888 transitions. [2022-02-09 04:09:22,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-09 04:09:22,906 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 [2022-02-09 04:09:22,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:09:22,917 INFO L225 Difference]: With dead ends: 5616 [2022-02-09 04:09:22,917 INFO L226 Difference]: Without dead ends: 5550 [2022-02-09 04:09:22,917 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 [2022-02-09 04:09:22,918 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 [2022-02-09 04:09:22,918 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] [2022-02-09 04:09:22,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5550 states. [2022-02-09 04:09:22,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5550 to 5318. [2022-02-09 04:09:22,999 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) [2022-02-09 04:09:23,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5318 states to 5318 states and 18008 transitions. [2022-02-09 04:09:23,009 INFO L78 Accepts]: Start accepts. Automaton has 5318 states and 18008 transitions. Word has length 39 [2022-02-09 04:09:23,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:09:23,009 INFO L470 AbstractCegarLoop]: Abstraction has 5318 states and 18008 transitions. [2022-02-09 04:09:23,009 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:09:23,009 INFO L276 IsEmpty]: Start isEmpty. Operand 5318 states and 18008 transitions. [2022-02-09 04:09:23,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:09:23,016 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:09:23,016 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] [2022-02-09 04:09:23,016 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable376 [2022-02-09 04:09:23,016 INFO L402 AbstractCegarLoop]: === Iteration 378 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:09:23,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:09:23,017 INFO L85 PathProgramCache]: Analyzing trace with hash 2001605590, now seen corresponding path program 378 times [2022-02-09 04:09:23,017 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:09:23,017 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589605340] [2022-02-09 04:09:23,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:09:23,017 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:09:23,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:09:23,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:09:23,224 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:09:23,224 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589605340] [2022-02-09 04:09:23,224 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589605340] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:09:23,224 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:09:23,224 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:09:23,224 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996238866] [2022-02-09 04:09:23,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:09:23,225 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:09:23,225 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:09:23,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:09:23,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:09:23,225 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) [2022-02-09 04:09:24,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:09:24,250 INFO L93 Difference]: Finished difference Result 5629 states and 18921 transitions. [2022-02-09 04:09:24,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-09 04:09:24,251 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 [2022-02-09 04:09:24,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:09:24,261 INFO L225 Difference]: With dead ends: 5629 [2022-02-09 04:09:24,262 INFO L226 Difference]: Without dead ends: 5499 [2022-02-09 04:09:24,262 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 422 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=201, Invalid=1961, Unknown=0, NotChecked=0, Total=2162 [2022-02-09 04:09:24,262 INFO L933 BasicCegarLoop]: 121 mSDtfsCounter, 263 mSDsluCounter, 1371 mSDsCounter, 0 mSdLazyCounter, 1771 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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 [2022-02-09 04:09:24,262 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] [2022-02-09 04:09:24,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5499 states. [2022-02-09 04:09:24,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5499 to 5282. [2022-02-09 04:09:24,322 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) [2022-02-09 04:09:24,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5282 states to 5282 states and 17894 transitions. [2022-02-09 04:09:24,332 INFO L78 Accepts]: Start accepts. Automaton has 5282 states and 17894 transitions. Word has length 39 [2022-02-09 04:09:24,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:09:24,332 INFO L470 AbstractCegarLoop]: Abstraction has 5282 states and 17894 transitions. [2022-02-09 04:09:24,332 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) [2022-02-09 04:09:24,332 INFO L276 IsEmpty]: Start isEmpty. Operand 5282 states and 17894 transitions. [2022-02-09 04:09:24,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:09:24,339 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:09:24,339 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] [2022-02-09 04:09:24,339 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable377 [2022-02-09 04:09:24,339 INFO L402 AbstractCegarLoop]: === Iteration 379 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:09:24,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:09:24,339 INFO L85 PathProgramCache]: Analyzing trace with hash -1245843900, now seen corresponding path program 379 times [2022-02-09 04:09:24,339 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:09:24,339 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830268541] [2022-02-09 04:09:24,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:09:24,339 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:09:24,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:09:24,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:09:24,547 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:09:24,547 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830268541] [2022-02-09 04:09:24,547 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830268541] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:09:24,547 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:09:24,547 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:09:24,547 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111429873] [2022-02-09 04:09:24,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:09:24,547 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:09:24,547 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:09:24,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:09:24,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:09:24,548 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) [2022-02-09 04:09:26,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:09:26,357 INFO L93 Difference]: Finished difference Result 5884 states and 19567 transitions. [2022-02-09 04:09:26,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2022-02-09 04:09:26,357 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:09:26,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:09:26,369 INFO L225 Difference]: With dead ends: 5884 [2022-02-09 04:09:26,369 INFO L226 Difference]: Without dead ends: 5820 [2022-02-09 04:09:26,370 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1391 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=416, Invalid=4554, Unknown=0, NotChecked=0, Total=4970 [2022-02-09 04:09:26,370 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, 0.8s IncrementalHoareTripleChecker+Time [2022-02-09 04:09:26,370 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [344 Valid, 1382 Invalid, 2445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 2363 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-09 04:09:26,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5820 states. [2022-02-09 04:09:26,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5820 to 5292. [2022-02-09 04:09:26,434 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) [2022-02-09 04:09:26,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5292 states to 5292 states and 17928 transitions. [2022-02-09 04:09:26,445 INFO L78 Accepts]: Start accepts. Automaton has 5292 states and 17928 transitions. Word has length 39 [2022-02-09 04:09:26,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:09:26,445 INFO L470 AbstractCegarLoop]: Abstraction has 5292 states and 17928 transitions. [2022-02-09 04:09:26,445 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:09:26,446 INFO L276 IsEmpty]: Start isEmpty. Operand 5292 states and 17928 transitions. [2022-02-09 04:09:26,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:09:26,453 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:09:26,453 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:09:26,453 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable378 [2022-02-09 04:09:26,453 INFO L402 AbstractCegarLoop]: === Iteration 380 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:09:26,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:09:26,453 INFO L85 PathProgramCache]: Analyzing trace with hash -327360330, now seen corresponding path program 380 times [2022-02-09 04:09:26,453 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:09:26,453 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457955605] [2022-02-09 04:09:26,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:09:26,453 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:09:26,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:09:26,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:09:26,660 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:09:26,660 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457955605] [2022-02-09 04:09:26,660 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457955605] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:09:26,660 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:09:26,660 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:09:26,660 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120256465] [2022-02-09 04:09:26,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:09:26,661 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:09:26,661 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:09:26,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:09:26,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:09:26,661 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) [2022-02-09 04:09:27,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:09:27,866 INFO L93 Difference]: Finished difference Result 5732 states and 19160 transitions. [2022-02-09 04:09:27,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-02-09 04:09:27,866 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 [2022-02-09 04:09:27,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:09:27,877 INFO L225 Difference]: With dead ends: 5732 [2022-02-09 04:09:27,877 INFO L226 Difference]: Without dead ends: 5689 [2022-02-09 04:09:27,878 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 [2022-02-09 04:09:27,878 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 [2022-02-09 04:09:27,878 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] [2022-02-09 04:09:27,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5689 states. [2022-02-09 04:09:27,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5689 to 5298. [2022-02-09 04:09:27,943 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) [2022-02-09 04:09:27,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5298 states to 5298 states and 17941 transitions. [2022-02-09 04:09:27,954 INFO L78 Accepts]: Start accepts. Automaton has 5298 states and 17941 transitions. Word has length 39 [2022-02-09 04:09:27,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:09:27,954 INFO L470 AbstractCegarLoop]: Abstraction has 5298 states and 17941 transitions. [2022-02-09 04:09:27,954 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:09:27,954 INFO L276 IsEmpty]: Start isEmpty. Operand 5298 states and 17941 transitions. [2022-02-09 04:09:27,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:09:27,962 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:09:27,962 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:09:27,963 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable379 [2022-02-09 04:09:27,963 INFO L402 AbstractCegarLoop]: === Iteration 381 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:09:27,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:09:27,963 INFO L85 PathProgramCache]: Analyzing trace with hash -307211596, now seen corresponding path program 381 times [2022-02-09 04:09:27,963 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:09:27,963 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47162664] [2022-02-09 04:09:27,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:09:27,963 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:09:27,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:09:28,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:09:28,174 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:09:28,174 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47162664] [2022-02-09 04:09:28,174 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47162664] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:09:28,174 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:09:28,174 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:09:28,175 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633154852] [2022-02-09 04:09:28,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:09:28,175 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:09:28,175 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:09:28,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:09:28,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:09:28,175 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) [2022-02-09 04:09:29,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:09:29,374 INFO L93 Difference]: Finished difference Result 5695 states and 19078 transitions. [2022-02-09 04:09:29,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-02-09 04:09:29,375 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:09:29,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:09:29,386 INFO L225 Difference]: With dead ends: 5695 [2022-02-09 04:09:29,386 INFO L226 Difference]: Without dead ends: 5652 [2022-02-09 04:09:29,386 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 614 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=264, Invalid=2492, Unknown=0, NotChecked=0, Total=2756 [2022-02-09 04:09:29,386 INFO L933 BasicCegarLoop]: 110 mSDtfsCounter, 267 mSDsluCounter, 1384 mSDsCounter, 0 mSdLazyCounter, 1928 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 04:09:29,386 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [267 Valid, 1084 Invalid, 1980 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 1928 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 04:09:29,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5652 states. [2022-02-09 04:09:29,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5652 to 5294. [2022-02-09 04:09:29,467 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) [2022-02-09 04:09:29,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5294 states to 5294 states and 17931 transitions. [2022-02-09 04:09:29,477 INFO L78 Accepts]: Start accepts. Automaton has 5294 states and 17931 transitions. Word has length 39 [2022-02-09 04:09:29,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:09:29,477 INFO L470 AbstractCegarLoop]: Abstraction has 5294 states and 17931 transitions. [2022-02-09 04:09:29,478 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:09:29,478 INFO L276 IsEmpty]: Start isEmpty. Operand 5294 states and 17931 transitions. [2022-02-09 04:09:29,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:09:29,484 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:09:29,484 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:09:29,484 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable380 [2022-02-09 04:09:29,484 INFO L402 AbstractCegarLoop]: === Iteration 382 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:09:29,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:09:29,485 INFO L85 PathProgramCache]: Analyzing trace with hash 845291892, now seen corresponding path program 382 times [2022-02-09 04:09:29,485 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:09:29,485 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882288710] [2022-02-09 04:09:29,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:09:29,485 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:09:29,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:09:29,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:09:29,701 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:09:29,701 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882288710] [2022-02-09 04:09:29,701 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882288710] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:09:29,701 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:09:29,701 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:09:29,701 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85353456] [2022-02-09 04:09:29,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:09:29,701 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:09:29,701 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:09:29,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:09:29,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:09:29,702 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) [2022-02-09 04:09:31,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:09:31,059 INFO L93 Difference]: Finished difference Result 5736 states and 19182 transitions. [2022-02-09 04:09:31,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-02-09 04:09:31,060 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:09:31,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:09:31,070 INFO L225 Difference]: With dead ends: 5736 [2022-02-09 04:09:31,071 INFO L226 Difference]: Without dead ends: 5676 [2022-02-09 04:09:31,071 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 [2022-02-09 04:09:31,071 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 [2022-02-09 04:09:31,071 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] [2022-02-09 04:09:31,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5676 states. [2022-02-09 04:09:31,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5676 to 5300. [2022-02-09 04:09:31,136 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) [2022-02-09 04:09:31,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5300 states to 5300 states and 17952 transitions. [2022-02-09 04:09:31,146 INFO L78 Accepts]: Start accepts. Automaton has 5300 states and 17952 transitions. Word has length 39 [2022-02-09 04:09:31,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:09:31,146 INFO L470 AbstractCegarLoop]: Abstraction has 5300 states and 17952 transitions. [2022-02-09 04:09:31,146 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:09:31,146 INFO L276 IsEmpty]: Start isEmpty. Operand 5300 states and 17952 transitions. [2022-02-09 04:09:31,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:09:31,153 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:09:31,153 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:09:31,153 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable381 [2022-02-09 04:09:31,153 INFO L402 AbstractCegarLoop]: === Iteration 383 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:09:31,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:09:31,153 INFO L85 PathProgramCache]: Analyzing trace with hash -1234274650, now seen corresponding path program 383 times [2022-02-09 04:09:31,153 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:09:31,153 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633794124] [2022-02-09 04:09:31,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:09:31,153 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:09:31,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:09:31,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:09:31,366 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:09:31,366 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633794124] [2022-02-09 04:09:31,366 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633794124] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:09:31,366 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:09:31,366 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:09:31,366 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034852040] [2022-02-09 04:09:31,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:09:31,366 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:09:31,366 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:09:31,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:09:31,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:09:31,367 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) [2022-02-09 04:09:32,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:09:32,536 INFO L93 Difference]: Finished difference Result 5707 states and 19123 transitions. [2022-02-09 04:09:32,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-02-09 04:09:32,537 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 [2022-02-09 04:09:32,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:09:32,547 INFO L225 Difference]: With dead ends: 5707 [2022-02-09 04:09:32,547 INFO L226 Difference]: Without dead ends: 5631 [2022-02-09 04:09:32,548 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 651 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=260, Invalid=2496, Unknown=0, NotChecked=0, Total=2756 [2022-02-09 04:09:32,548 INFO L933 BasicCegarLoop]: 118 mSDtfsCounter, 267 mSDsluCounter, 1292 mSDsCounter, 0 mSdLazyCounter, 1810 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 04:09:32,548 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [267 Valid, 1066 Invalid, 1863 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 1810 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 04:09:32,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5631 states. [2022-02-09 04:09:32,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5631 to 5312. [2022-02-09 04:09:32,606 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) [2022-02-09 04:09:32,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5312 states to 5312 states and 17976 transitions. [2022-02-09 04:09:32,616 INFO L78 Accepts]: Start accepts. Automaton has 5312 states and 17976 transitions. Word has length 39 [2022-02-09 04:09:32,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:09:32,616 INFO L470 AbstractCegarLoop]: Abstraction has 5312 states and 17976 transitions. [2022-02-09 04:09:32,616 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) [2022-02-09 04:09:32,616 INFO L276 IsEmpty]: Start isEmpty. Operand 5312 states and 17976 transitions. [2022-02-09 04:09:32,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:09:32,623 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:09:32,624 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:09:32,624 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable382 [2022-02-09 04:09:32,624 INFO L402 AbstractCegarLoop]: === Iteration 384 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:09:32,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:09:32,624 INFO L85 PathProgramCache]: Analyzing trace with hash 2042639034, now seen corresponding path program 384 times [2022-02-09 04:09:32,624 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:09:32,624 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355354949] [2022-02-09 04:09:32,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:09:32,624 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:09:32,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:09:32,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:09:32,840 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:09:32,840 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355354949] [2022-02-09 04:09:32,840 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355354949] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:09:32,840 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:09:32,840 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:09:32,840 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745364009] [2022-02-09 04:09:32,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:09:32,840 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:09:32,840 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:09:32,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:09:32,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:09:32,841 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) [2022-02-09 04:09:34,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:09:34,126 INFO L93 Difference]: Finished difference Result 5689 states and 19069 transitions. [2022-02-09 04:09:34,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-02-09 04:09:34,126 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 [2022-02-09 04:09:34,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:09:34,137 INFO L225 Difference]: With dead ends: 5689 [2022-02-09 04:09:34,137 INFO L226 Difference]: Without dead ends: 5619 [2022-02-09 04:09:34,137 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 724 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=280, Invalid=2800, Unknown=0, NotChecked=0, Total=3080 [2022-02-09 04:09:34,137 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 [2022-02-09 04:09:34,137 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] [2022-02-09 04:09:34,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5619 states. [2022-02-09 04:09:34,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5619 to 5300. [2022-02-09 04:09:34,194 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) [2022-02-09 04:09:34,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5300 states to 5300 states and 17946 transitions. [2022-02-09 04:09:34,204 INFO L78 Accepts]: Start accepts. Automaton has 5300 states and 17946 transitions. Word has length 39 [2022-02-09 04:09:34,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:09:34,205 INFO L470 AbstractCegarLoop]: Abstraction has 5300 states and 17946 transitions. [2022-02-09 04:09:34,205 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:09:34,205 INFO L276 IsEmpty]: Start isEmpty. Operand 5300 states and 17946 transitions. [2022-02-09 04:09:34,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:09:34,212 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:09:34,212 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:09:34,212 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable383 [2022-02-09 04:09:34,212 INFO L402 AbstractCegarLoop]: === Iteration 385 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:09:34,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:09:34,213 INFO L85 PathProgramCache]: Analyzing trace with hash -1775940392, now seen corresponding path program 385 times [2022-02-09 04:09:34,213 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:09:34,213 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689501415] [2022-02-09 04:09:34,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:09:34,213 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:09:34,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:09:34,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:09:34,417 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:09:34,418 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689501415] [2022-02-09 04:09:34,418 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689501415] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:09:34,418 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:09:34,418 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:09:34,418 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165186339] [2022-02-09 04:09:34,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:09:34,418 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:09:34,418 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:09:34,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:09:34,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:09:34,418 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) [2022-02-09 04:09:36,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:09:36,094 INFO L93 Difference]: Finished difference Result 5861 states and 19500 transitions. [2022-02-09 04:09:36,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-02-09 04:09:36,094 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:09:36,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:09:36,131 INFO L225 Difference]: With dead ends: 5861 [2022-02-09 04:09:36,131 INFO L226 Difference]: Without dead ends: 5797 [2022-02-09 04:09:36,132 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1183 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=366, Invalid=4056, Unknown=0, NotChecked=0, Total=4422 [2022-02-09 04:09:36,132 INFO L933 BasicCegarLoop]: 136 mSDtfsCounter, 320 mSDsluCounter, 1666 mSDsCounter, 0 mSdLazyCounter, 2420 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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 [2022-02-09 04:09:36,132 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] [2022-02-09 04:09:36,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5797 states. [2022-02-09 04:09:36,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5797 to 5309. [2022-02-09 04:09:36,187 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) [2022-02-09 04:09:36,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5309 states to 5309 states and 17970 transitions. [2022-02-09 04:09:36,198 INFO L78 Accepts]: Start accepts. Automaton has 5309 states and 17970 transitions. Word has length 39 [2022-02-09 04:09:36,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:09:36,198 INFO L470 AbstractCegarLoop]: Abstraction has 5309 states and 17970 transitions. [2022-02-09 04:09:36,198 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:09:36,198 INFO L276 IsEmpty]: Start isEmpty. Operand 5309 states and 17970 transitions. [2022-02-09 04:09:36,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:09:36,205 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:09:36,205 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:09:36,205 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable384 [2022-02-09 04:09:36,205 INFO L402 AbstractCegarLoop]: === Iteration 386 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:09:36,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:09:36,206 INFO L85 PathProgramCache]: Analyzing trace with hash 981607674, now seen corresponding path program 386 times [2022-02-09 04:09:36,206 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:09:36,206 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658404758] [2022-02-09 04:09:36,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:09:36,206 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:09:36,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:09:36,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:09:36,412 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:09:36,412 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658404758] [2022-02-09 04:09:36,412 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658404758] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:09:36,412 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:09:36,412 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:09:36,412 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911656236] [2022-02-09 04:09:36,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:09:36,413 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:09:36,413 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:09:36,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:09:36,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:09:36,413 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) [2022-02-09 04:09:37,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:09:37,537 INFO L93 Difference]: Finished difference Result 5712 states and 19100 transitions. [2022-02-09 04:09:37,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-02-09 04:09:37,537 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 [2022-02-09 04:09:37,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:09:37,549 INFO L225 Difference]: With dead ends: 5712 [2022-02-09 04:09:37,549 INFO L226 Difference]: Without dead ends: 5669 [2022-02-09 04:09:37,549 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 511 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=224, Invalid=2226, Unknown=0, NotChecked=0, Total=2450 [2022-02-09 04:09:37,549 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 04:09:37,550 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [254 Valid, 1089 Invalid, 2028 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 1985 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 04:09:37,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5669 states. [2022-02-09 04:09:37,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5669 to 5318. [2022-02-09 04:09:37,611 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) [2022-02-09 04:09:37,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5318 states to 5318 states and 17991 transitions. [2022-02-09 04:09:37,621 INFO L78 Accepts]: Start accepts. Automaton has 5318 states and 17991 transitions. Word has length 39 [2022-02-09 04:09:37,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:09:37,621 INFO L470 AbstractCegarLoop]: Abstraction has 5318 states and 17991 transitions. [2022-02-09 04:09:37,621 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:09:37,621 INFO L276 IsEmpty]: Start isEmpty. Operand 5318 states and 17991 transitions. [2022-02-09 04:09:37,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:09:37,628 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:09:37,628 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] [2022-02-09 04:09:37,628 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable385 [2022-02-09 04:09:37,628 INFO L402 AbstractCegarLoop]: === Iteration 387 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:09:37,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:09:37,628 INFO L85 PathProgramCache]: Analyzing trace with hash -1563252486, now seen corresponding path program 387 times [2022-02-09 04:09:37,628 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:09:37,628 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002463246] [2022-02-09 04:09:37,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:09:37,628 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:09:37,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:09:37,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:09:37,850 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:09:37,850 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002463246] [2022-02-09 04:09:37,850 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002463246] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:09:37,850 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:09:37,850 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:09:37,850 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134896408] [2022-02-09 04:09:37,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:09:37,850 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:09:37,850 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:09:37,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:09:37,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:09:37,851 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) [2022-02-09 04:09:39,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:09:39,002 INFO L93 Difference]: Finished difference Result 5681 states and 19033 transitions. [2022-02-09 04:09:39,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-02-09 04:09:39,002 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:09:39,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:09:39,013 INFO L225 Difference]: With dead ends: 5681 [2022-02-09 04:09:39,013 INFO L226 Difference]: Without dead ends: 5630 [2022-02-09 04:09:39,013 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 [2022-02-09 04:09:39,014 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 [2022-02-09 04:09:39,014 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] [2022-02-09 04:09:39,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5630 states. [2022-02-09 04:09:39,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5630 to 5312. [2022-02-09 04:09:39,072 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) [2022-02-09 04:09:39,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5312 states to 5312 states and 17975 transitions. [2022-02-09 04:09:39,082 INFO L78 Accepts]: Start accepts. Automaton has 5312 states and 17975 transitions. Word has length 39 [2022-02-09 04:09:39,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:09:39,082 INFO L470 AbstractCegarLoop]: Abstraction has 5312 states and 17975 transitions. [2022-02-09 04:09:39,082 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) [2022-02-09 04:09:39,082 INFO L276 IsEmpty]: Start isEmpty. Operand 5312 states and 17975 transitions. [2022-02-09 04:09:39,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:09:39,089 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:09:39,089 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] [2022-02-09 04:09:39,089 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable386 [2022-02-09 04:09:39,089 INFO L402 AbstractCegarLoop]: === Iteration 388 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:09:39,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:09:39,089 INFO L85 PathProgramCache]: Analyzing trace with hash -946034084, now seen corresponding path program 388 times [2022-02-09 04:09:39,089 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:09:39,089 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137583458] [2022-02-09 04:09:39,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:09:39,089 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:09:39,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:09:39,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:09:39,294 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:09:39,294 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137583458] [2022-02-09 04:09:39,294 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137583458] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:09:39,294 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:09:39,294 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:09:39,294 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419221183] [2022-02-09 04:09:39,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:09:39,294 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:09:39,294 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:09:39,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:09:39,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:09:39,295 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) [2022-02-09 04:09:40,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:09:40,594 INFO L93 Difference]: Finished difference Result 5754 states and 19200 transitions. [2022-02-09 04:09:40,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-02-09 04:09:40,594 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:09:40,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:09:40,604 INFO L225 Difference]: With dead ends: 5754 [2022-02-09 04:09:40,604 INFO L226 Difference]: Without dead ends: 5708 [2022-02-09 04:09:40,605 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 [2022-02-09 04:09:40,605 INFO L933 BasicCegarLoop]: 118 mSDtfsCounter, 302 mSDsluCounter, 1426 mSDsCounter, 0 mSdLazyCounter, 2013 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.7s IncrementalHoareTripleChecker+Time [2022-02-09 04:09:40,605 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [302 Valid, 1162 Invalid, 2067 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 2013 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-09 04:09:40,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5708 states. [2022-02-09 04:09:40,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5708 to 5319. [2022-02-09 04:09:40,661 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) [2022-02-09 04:09:40,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5319 states to 5319 states and 17990 transitions. [2022-02-09 04:09:40,671 INFO L78 Accepts]: Start accepts. Automaton has 5319 states and 17990 transitions. Word has length 39 [2022-02-09 04:09:40,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:09:40,671 INFO L470 AbstractCegarLoop]: Abstraction has 5319 states and 17990 transitions. [2022-02-09 04:09:40,671 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:09:40,671 INFO L276 IsEmpty]: Start isEmpty. Operand 5319 states and 17990 transitions. [2022-02-09 04:09:40,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:09:40,677 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:09:40,678 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:09:40,678 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable387 [2022-02-09 04:09:40,678 INFO L402 AbstractCegarLoop]: === Iteration 389 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:09:40,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:09:40,678 INFO L85 PathProgramCache]: Analyzing trace with hash 1913865722, now seen corresponding path program 389 times [2022-02-09 04:09:40,678 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:09:40,678 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957725824] [2022-02-09 04:09:40,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:09:40,678 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:09:40,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:09:40,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:09:40,883 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:09:40,883 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957725824] [2022-02-09 04:09:40,883 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957725824] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:09:40,883 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:09:40,883 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:09:40,883 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102052093] [2022-02-09 04:09:40,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:09:40,883 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:09:40,883 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:09:40,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:09:40,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:09:40,884 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) [2022-02-09 04:09:42,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:09:42,050 INFO L93 Difference]: Finished difference Result 5689 states and 19047 transitions. [2022-02-09 04:09:42,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-02-09 04:09:42,050 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:09:42,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:09:42,061 INFO L225 Difference]: With dead ends: 5689 [2022-02-09 04:09:42,061 INFO L226 Difference]: Without dead ends: 5634 [2022-02-09 04:09:42,061 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 [2022-02-09 04:09:42,061 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 04:09:42,061 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [257 Valid, 1069 Invalid, 2025 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 1975 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 04:09:42,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5634 states. [2022-02-09 04:09:42,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5634 to 5316. [2022-02-09 04:09:42,150 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) [2022-02-09 04:09:42,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5316 states to 5316 states and 17982 transitions. [2022-02-09 04:09:42,160 INFO L78 Accepts]: Start accepts. Automaton has 5316 states and 17982 transitions. Word has length 39 [2022-02-09 04:09:42,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:09:42,160 INFO L470 AbstractCegarLoop]: Abstraction has 5316 states and 17982 transitions. [2022-02-09 04:09:42,160 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) [2022-02-09 04:09:42,160 INFO L276 IsEmpty]: Start isEmpty. Operand 5316 states and 17982 transitions. [2022-02-09 04:09:42,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:09:42,167 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:09:42,167 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] [2022-02-09 04:09:42,167 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable388 [2022-02-09 04:09:42,167 INFO L402 AbstractCegarLoop]: === Iteration 390 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:09:42,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:09:42,167 INFO L85 PathProgramCache]: Analyzing trace with hash 1333249012, now seen corresponding path program 390 times [2022-02-09 04:09:42,167 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:09:42,167 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226075106] [2022-02-09 04:09:42,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:09:42,167 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:09:42,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:09:42,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:09:42,363 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:09:42,363 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226075106] [2022-02-09 04:09:42,363 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226075106] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:09:42,363 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:09:42,363 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-09 04:09:42,363 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906968043] [2022-02-09 04:09:42,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:09:42,364 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 04:09:42,364 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:09:42,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 04:09:42,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-09 04:09:42,364 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) [2022-02-09 04:09:43,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:09:43,515 INFO L93 Difference]: Finished difference Result 5650 states and 18957 transitions. [2022-02-09 04:09:43,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-02-09 04:09:43,515 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 [2022-02-09 04:09:43,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:09:43,526 INFO L225 Difference]: With dead ends: 5650 [2022-02-09 04:09:43,526 INFO L226 Difference]: Without dead ends: 5574 [2022-02-09 04:09:43,527 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 610 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=249, Invalid=2403, Unknown=0, NotChecked=0, Total=2652 [2022-02-09 04:09:43,527 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 04:09:43,527 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [252 Valid, 1068 Invalid, 1892 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 1844 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 04:09:43,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5574 states. [2022-02-09 04:09:43,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5574 to 5330. [2022-02-09 04:09:43,589 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) [2022-02-09 04:09:43,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5330 states to 5330 states and 18012 transitions. [2022-02-09 04:09:43,599 INFO L78 Accepts]: Start accepts. Automaton has 5330 states and 18012 transitions. Word has length 39 [2022-02-09 04:09:43,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:09:43,599 INFO L470 AbstractCegarLoop]: Abstraction has 5330 states and 18012 transitions. [2022-02-09 04:09:43,599 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) [2022-02-09 04:09:43,599 INFO L276 IsEmpty]: Start isEmpty. Operand 5330 states and 18012 transitions. [2022-02-09 04:09:43,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:09:43,606 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:09:43,606 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:09:43,606 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable389 [2022-02-09 04:09:43,606 INFO L402 AbstractCegarLoop]: === Iteration 391 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:09:43,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:09:43,606 INFO L85 PathProgramCache]: Analyzing trace with hash -214673322, now seen corresponding path program 391 times [2022-02-09 04:09:43,606 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:09:43,606 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604077399] [2022-02-09 04:09:43,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:09:43,607 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:09:43,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:09:43,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:09:43,812 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:09:43,812 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604077399] [2022-02-09 04:09:43,812 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604077399] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:09:43,812 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:09:43,812 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:09:43,812 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386187058] [2022-02-09 04:09:43,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:09:43,813 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:09:43,813 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:09:43,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:09:43,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:09:43,813 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) [2022-02-09 04:09:45,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:09:45,070 INFO L93 Difference]: Finished difference Result 5674 states and 18990 transitions. [2022-02-09 04:09:45,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-02-09 04:09:45,071 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 [2022-02-09 04:09:45,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:09:45,082 INFO L225 Difference]: With dead ends: 5674 [2022-02-09 04:09:45,082 INFO L226 Difference]: Without dead ends: 5628 [2022-02-09 04:09:45,082 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 681 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=267, Invalid=2703, Unknown=0, NotChecked=0, Total=2970 [2022-02-09 04:09:45,082 INFO L933 BasicCegarLoop]: 119 mSDtfsCounter, 284 mSDsluCounter, 1442 mSDsCounter, 0 mSdLazyCounter, 2001 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 04:09:45,082 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [284 Valid, 1176 Invalid, 2054 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 2001 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 04:09:45,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5628 states. [2022-02-09 04:09:45,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5628 to 5330. [2022-02-09 04:09:45,142 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) [2022-02-09 04:09:45,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5330 states to 5330 states and 18012 transitions. [2022-02-09 04:09:45,152 INFO L78 Accepts]: Start accepts. Automaton has 5330 states and 18012 transitions. Word has length 39 [2022-02-09 04:09:45,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:09:45,152 INFO L470 AbstractCegarLoop]: Abstraction has 5330 states and 18012 transitions. [2022-02-09 04:09:45,152 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:09:45,152 INFO L276 IsEmpty]: Start isEmpty. Operand 5330 states and 18012 transitions. [2022-02-09 04:09:45,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:09:45,159 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:09:45,159 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] [2022-02-09 04:09:45,159 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable390 [2022-02-09 04:09:45,159 INFO L402 AbstractCegarLoop]: === Iteration 392 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:09:45,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:09:45,160 INFO L85 PathProgramCache]: Analyzing trace with hash -1649740812, now seen corresponding path program 392 times [2022-02-09 04:09:45,160 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:09:45,160 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441017730] [2022-02-09 04:09:45,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:09:45,160 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:09:45,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:09:45,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:09:45,366 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:09:45,366 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441017730] [2022-02-09 04:09:45,366 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441017730] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:09:45,366 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:09:45,366 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:09:45,366 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390284923] [2022-02-09 04:09:45,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:09:45,366 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:09:45,367 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:09:45,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:09:45,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:09:45,367 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) [2022-02-09 04:09:46,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:09:46,512 INFO L93 Difference]: Finished difference Result 5602 states and 18822 transitions. [2022-02-09 04:09:46,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-02-09 04:09:46,512 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 [2022-02-09 04:09:46,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:09:46,522 INFO L225 Difference]: With dead ends: 5602 [2022-02-09 04:09:46,522 INFO L226 Difference]: Without dead ends: 5530 [2022-02-09 04:09:46,523 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 [2022-02-09 04:09:46,523 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 [2022-02-09 04:09:46,523 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] [2022-02-09 04:09:46,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5530 states. [2022-02-09 04:09:46,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5530 to 5310. [2022-02-09 04:09:46,577 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) [2022-02-09 04:09:46,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5310 states to 5310 states and 17963 transitions. [2022-02-09 04:09:46,587 INFO L78 Accepts]: Start accepts. Automaton has 5310 states and 17963 transitions. Word has length 39 [2022-02-09 04:09:46,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:09:46,587 INFO L470 AbstractCegarLoop]: Abstraction has 5310 states and 17963 transitions. [2022-02-09 04:09:46,587 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:09:46,587 INFO L276 IsEmpty]: Start isEmpty. Operand 5310 states and 17963 transitions. [2022-02-09 04:09:46,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:09:46,594 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:09:46,594 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:09:46,594 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable391 [2022-02-09 04:09:46,594 INFO L402 AbstractCegarLoop]: === Iteration 393 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:09:46,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:09:46,594 INFO L85 PathProgramCache]: Analyzing trace with hash 2100589592, now seen corresponding path program 393 times [2022-02-09 04:09:46,594 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:09:46,594 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688257735] [2022-02-09 04:09:46,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:09:46,595 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:09:46,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:09:46,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:09:46,802 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:09:46,802 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688257735] [2022-02-09 04:09:46,802 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688257735] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:09:46,802 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:09:46,802 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:09:46,802 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302802913] [2022-02-09 04:09:46,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:09:46,803 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:09:46,803 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:09:46,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:09:46,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:09:46,803 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) [2022-02-09 04:09:48,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:09:48,139 INFO L93 Difference]: Finished difference Result 5762 states and 19200 transitions. [2022-02-09 04:09:48,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-02-09 04:09:48,139 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:09:48,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:09:48,150 INFO L225 Difference]: With dead ends: 5762 [2022-02-09 04:09:48,150 INFO L226 Difference]: Without dead ends: 5711 [2022-02-09 04:09:48,151 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 838 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=315, Invalid=3107, Unknown=0, NotChecked=0, Total=3422 [2022-02-09 04:09:48,151 INFO L933 BasicCegarLoop]: 111 mSDtfsCounter, 312 mSDsluCounter, 1409 mSDsCounter, 0 mSdLazyCounter, 1978 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 04:09:48,151 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [312 Valid, 1121 Invalid, 2050 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 1978 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 04:09:48,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5711 states. [2022-02-09 04:09:48,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5711 to 5323. [2022-02-09 04:09:48,211 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) [2022-02-09 04:09:48,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5323 states to 5323 states and 17999 transitions. [2022-02-09 04:09:48,257 INFO L78 Accepts]: Start accepts. Automaton has 5323 states and 17999 transitions. Word has length 39 [2022-02-09 04:09:48,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:09:48,258 INFO L470 AbstractCegarLoop]: Abstraction has 5323 states and 17999 transitions. [2022-02-09 04:09:48,258 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:09:48,258 INFO L276 IsEmpty]: Start isEmpty. Operand 5323 states and 17999 transitions. [2022-02-09 04:09:48,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:09:48,265 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:09:48,265 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] [2022-02-09 04:09:48,265 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable392 [2022-02-09 04:09:48,265 INFO L402 AbstractCegarLoop]: === Iteration 394 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:09:48,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:09:48,265 INFO L85 PathProgramCache]: Analyzing trace with hash 2120738326, now seen corresponding path program 394 times [2022-02-09 04:09:48,265 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:09:48,265 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699704334] [2022-02-09 04:09:48,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:09:48,265 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:09:48,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:09:48,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:09:48,470 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:09:48,470 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699704334] [2022-02-09 04:09:48,470 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699704334] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:09:48,470 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:09:48,470 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:09:48,470 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868946993] [2022-02-09 04:09:48,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:09:48,470 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:09:48,470 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:09:48,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:09:48,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:09:48,470 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) [2022-02-09 04:09:49,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:09:49,725 INFO L93 Difference]: Finished difference Result 5729 states and 19122 transitions. [2022-02-09 04:09:49,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-02-09 04:09:49,725 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:09:49,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:09:49,736 INFO L225 Difference]: With dead ends: 5729 [2022-02-09 04:09:49,736 INFO L226 Difference]: Without dead ends: 5686 [2022-02-09 04:09:49,737 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 722 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=292, Invalid=2788, Unknown=0, NotChecked=0, Total=3080 [2022-02-09 04:09:49,737 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 [2022-02-09 04:09:49,737 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] [2022-02-09 04:09:49,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5686 states. [2022-02-09 04:09:49,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5686 to 5323. [2022-02-09 04:09:49,796 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) [2022-02-09 04:09:49,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5323 states to 5323 states and 17997 transitions. [2022-02-09 04:09:49,805 INFO L78 Accepts]: Start accepts. Automaton has 5323 states and 17997 transitions. Word has length 39 [2022-02-09 04:09:49,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:09:49,805 INFO L470 AbstractCegarLoop]: Abstraction has 5323 states and 17997 transitions. [2022-02-09 04:09:49,805 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:09:49,806 INFO L276 IsEmpty]: Start isEmpty. Operand 5323 states and 17997 transitions. [2022-02-09 04:09:49,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:09:49,812 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:09:49,812 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:09:49,812 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable393 [2022-02-09 04:09:49,812 INFO L402 AbstractCegarLoop]: === Iteration 395 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:09:49,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:09:49,813 INFO L85 PathProgramCache]: Analyzing trace with hash -1021725482, now seen corresponding path program 395 times [2022-02-09 04:09:49,813 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:09:49,813 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126434192] [2022-02-09 04:09:49,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:09:49,813 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:09:49,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:09:50,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:09:50,019 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:09:50,019 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126434192] [2022-02-09 04:09:50,019 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126434192] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:09:50,020 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:09:50,020 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:09:50,020 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588070588] [2022-02-09 04:09:50,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:09:50,020 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:09:50,020 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:09:50,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:09:50,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:09:50,020 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) [2022-02-09 04:09:51,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:09:51,432 INFO L93 Difference]: Finished difference Result 5794 states and 19270 transitions. [2022-02-09 04:09:51,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-02-09 04:09:51,432 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 [2022-02-09 04:09:51,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:09:51,442 INFO L225 Difference]: With dead ends: 5794 [2022-02-09 04:09:51,443 INFO L226 Difference]: Without dead ends: 5734 [2022-02-09 04:09:51,443 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 [2022-02-09 04:09:51,443 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 [2022-02-09 04:09:51,443 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] [2022-02-09 04:09:51,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5734 states. [2022-02-09 04:09:51,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5734 to 5319. [2022-02-09 04:09:51,503 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) [2022-02-09 04:09:51,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5319 states to 5319 states and 17986 transitions. [2022-02-09 04:09:51,512 INFO L78 Accepts]: Start accepts. Automaton has 5319 states and 17986 transitions. Word has length 39 [2022-02-09 04:09:51,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:09:51,512 INFO L470 AbstractCegarLoop]: Abstraction has 5319 states and 17986 transitions. [2022-02-09 04:09:51,512 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:09:51,512 INFO L276 IsEmpty]: Start isEmpty. Operand 5319 states and 17986 transitions. [2022-02-09 04:09:51,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:09:51,519 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:09:51,519 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:09:51,520 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable394 [2022-02-09 04:09:51,520 INFO L402 AbstractCegarLoop]: === Iteration 396 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:09:51,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:09:51,520 INFO L85 PathProgramCache]: Analyzing trace with hash -1089470362, now seen corresponding path program 396 times [2022-02-09 04:09:51,520 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:09:51,520 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183934276] [2022-02-09 04:09:51,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:09:51,520 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:09:51,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:09:51,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:09:51,726 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:09:51,726 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183934276] [2022-02-09 04:09:51,726 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183934276] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:09:51,726 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:09:51,726 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:09:51,726 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824510168] [2022-02-09 04:09:51,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:09:51,726 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:09:51,726 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:09:51,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:09:51,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:09:51,727 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) [2022-02-09 04:09:52,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:09:52,989 INFO L93 Difference]: Finished difference Result 5736 states and 19120 transitions. [2022-02-09 04:09:52,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-02-09 04:09:52,989 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 [2022-02-09 04:09:52,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:09:53,000 INFO L225 Difference]: With dead ends: 5736 [2022-02-09 04:09:53,000 INFO L226 Difference]: Without dead ends: 5693 [2022-02-09 04:09:53,000 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 686 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=272, Invalid=2698, Unknown=0, NotChecked=0, Total=2970 [2022-02-09 04:09:53,001 INFO L933 BasicCegarLoop]: 110 mSDtfsCounter, 296 mSDsluCounter, 1386 mSDsCounter, 0 mSdLazyCounter, 1973 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 04:09:53,001 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [296 Valid, 1101 Invalid, 2030 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 1973 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 04:09:53,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5693 states. [2022-02-09 04:09:53,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5693 to 5328. [2022-02-09 04:09:53,056 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) [2022-02-09 04:09:53,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5328 states to 5328 states and 18007 transitions. [2022-02-09 04:09:53,066 INFO L78 Accepts]: Start accepts. Automaton has 5328 states and 18007 transitions. Word has length 39 [2022-02-09 04:09:53,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:09:53,066 INFO L470 AbstractCegarLoop]: Abstraction has 5328 states and 18007 transitions. [2022-02-09 04:09:53,066 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:09:53,066 INFO L276 IsEmpty]: Start isEmpty. Operand 5328 states and 18007 transitions. [2022-02-09 04:09:53,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:09:53,073 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:09:53,073 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:09:53,073 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable395 [2022-02-09 04:09:53,073 INFO L402 AbstractCegarLoop]: === Iteration 397 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:09:53,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:09:53,074 INFO L85 PathProgramCache]: Analyzing trace with hash 660636774, now seen corresponding path program 397 times [2022-02-09 04:09:53,074 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:09:53,074 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130562731] [2022-02-09 04:09:53,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:09:53,074 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:09:53,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:09:53,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:09:53,279 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:09:53,279 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130562731] [2022-02-09 04:09:53,279 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130562731] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:09:53,279 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:09:53,279 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:09:53,279 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000659427] [2022-02-09 04:09:53,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:09:53,280 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:09:53,280 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:09:53,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:09:53,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:09:53,280 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) [2022-02-09 04:09:54,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:09:54,548 INFO L93 Difference]: Finished difference Result 5770 states and 19204 transitions. [2022-02-09 04:09:54,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-02-09 04:09:54,548 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:09:54,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:09:54,559 INFO L225 Difference]: With dead ends: 5770 [2022-02-09 04:09:54,559 INFO L226 Difference]: Without dead ends: 5670 [2022-02-09 04:09:54,559 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 762 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=288, Invalid=2904, Unknown=0, NotChecked=0, Total=3192 [2022-02-09 04:09:54,559 INFO L933 BasicCegarLoop]: 109 mSDtfsCounter, 304 mSDsluCounter, 1376 mSDsCounter, 0 mSdLazyCounter, 1945 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 04:09:54,559 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [304 Valid, 1087 Invalid, 2007 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 1945 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 04:09:54,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5670 states. [2022-02-09 04:09:54,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5670 to 5330. [2022-02-09 04:09:54,637 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) [2022-02-09 04:09:54,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5330 states to 5330 states and 18005 transitions. [2022-02-09 04:09:54,646 INFO L78 Accepts]: Start accepts. Automaton has 5330 states and 18005 transitions. Word has length 39 [2022-02-09 04:09:54,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:09:54,646 INFO L470 AbstractCegarLoop]: Abstraction has 5330 states and 18005 transitions. [2022-02-09 04:09:54,646 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:09:54,647 INFO L276 IsEmpty]: Start isEmpty. Operand 5330 states and 18005 transitions. [2022-02-09 04:09:54,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:09:54,653 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:09:54,653 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:09:54,653 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable396 [2022-02-09 04:09:54,653 INFO L402 AbstractCegarLoop]: === Iteration 398 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:09:54,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:09:54,654 INFO L85 PathProgramCache]: Analyzing trace with hash 1277855176, now seen corresponding path program 398 times [2022-02-09 04:09:54,654 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:09:54,654 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360576556] [2022-02-09 04:09:54,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:09:54,654 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:09:54,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:09:54,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:09:54,858 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:09:54,858 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360576556] [2022-02-09 04:09:54,858 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360576556] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:09:54,858 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:09:54,858 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:09:54,858 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010516997] [2022-02-09 04:09:54,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:09:54,858 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:09:54,858 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:09:54,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:09:54,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:09:54,858 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) [2022-02-09 04:09:56,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:09:56,174 INFO L93 Difference]: Finished difference Result 5722 states and 19087 transitions. [2022-02-09 04:09:56,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-02-09 04:09:56,174 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:09:56,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:09:56,185 INFO L225 Difference]: With dead ends: 5722 [2022-02-09 04:09:56,185 INFO L226 Difference]: Without dead ends: 5676 [2022-02-09 04:09:56,185 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 802 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=301, Invalid=3005, Unknown=0, NotChecked=0, Total=3306 [2022-02-09 04:09:56,186 INFO L933 BasicCegarLoop]: 115 mSDtfsCounter, 314 mSDsluCounter, 1411 mSDsCounter, 0 mSdLazyCounter, 1924 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 04:09:56,186 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [314 Valid, 1161 Invalid, 1985 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 1924 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 04:09:56,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5676 states. [2022-02-09 04:09:56,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5676 to 5328. [2022-02-09 04:09:56,244 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) [2022-02-09 04:09:56,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5328 states to 5328 states and 18002 transitions. [2022-02-09 04:09:56,254 INFO L78 Accepts]: Start accepts. Automaton has 5328 states and 18002 transitions. Word has length 39 [2022-02-09 04:09:56,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:09:56,254 INFO L470 AbstractCegarLoop]: Abstraction has 5328 states and 18002 transitions. [2022-02-09 04:09:56,254 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) [2022-02-09 04:09:56,254 INFO L276 IsEmpty]: Start isEmpty. Operand 5328 states and 18002 transitions. [2022-02-09 04:09:56,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:09:56,261 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:09:56,261 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] [2022-02-09 04:09:56,261 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable397 [2022-02-09 04:09:56,261 INFO L402 AbstractCegarLoop]: === Iteration 399 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:09:56,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:09:56,261 INFO L85 PathProgramCache]: Analyzing trace with hash -157212314, now seen corresponding path program 399 times [2022-02-09 04:09:56,261 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:09:56,261 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938145944] [2022-02-09 04:09:56,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:09:56,262 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:09:56,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:09:56,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:09:56,482 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:09:56,482 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938145944] [2022-02-09 04:09:56,482 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938145944] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:09:56,482 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:09:56,482 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:09:56,482 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102764782] [2022-02-09 04:09:56,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:09:56,482 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:09:56,482 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:09:56,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:09:56,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:09:56,483 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) [2022-02-09 04:09:57,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:09:57,687 INFO L93 Difference]: Finished difference Result 5691 states and 19011 transitions. [2022-02-09 04:09:57,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-02-09 04:09:57,687 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:09:57,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:09:57,698 INFO L225 Difference]: With dead ends: 5691 [2022-02-09 04:09:57,698 INFO L226 Difference]: Without dead ends: 5630 [2022-02-09 04:09:57,698 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 [2022-02-09 04:09:57,698 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 [2022-02-09 04:09:57,698 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] [2022-02-09 04:09:57,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5630 states. [2022-02-09 04:09:57,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5630 to 5319. [2022-02-09 04:09:57,756 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) [2022-02-09 04:09:57,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5319 states to 5319 states and 17980 transitions. [2022-02-09 04:09:57,766 INFO L78 Accepts]: Start accepts. Automaton has 5319 states and 17980 transitions. Word has length 39 [2022-02-09 04:09:57,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:09:57,766 INFO L470 AbstractCegarLoop]: Abstraction has 5319 states and 17980 transitions. [2022-02-09 04:09:57,766 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:09:57,766 INFO L276 IsEmpty]: Start isEmpty. Operand 5319 states and 17980 transitions. [2022-02-09 04:09:57,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:09:57,773 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:09:57,773 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:09:57,773 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable398 [2022-02-09 04:09:57,773 INFO L402 AbstractCegarLoop]: === Iteration 400 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:09:57,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:09:57,773 INFO L85 PathProgramCache]: Analyzing trace with hash -1899265356, now seen corresponding path program 400 times [2022-02-09 04:09:57,773 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:09:57,773 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729363872] [2022-02-09 04:09:57,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:09:57,773 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:09:57,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:09:57,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:09:57,979 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:09:57,979 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729363872] [2022-02-09 04:09:57,979 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729363872] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:09:57,979 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:09:57,979 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:09:57,979 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734448834] [2022-02-09 04:09:57,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:09:57,979 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:09:57,979 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:09:57,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:09:57,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:09:57,979 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) [2022-02-09 04:09:59,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:09:59,121 INFO L93 Difference]: Finished difference Result 5622 states and 18854 transitions. [2022-02-09 04:09:59,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-02-09 04:09:59,122 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:09:59,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:09:59,132 INFO L225 Difference]: With dead ends: 5622 [2022-02-09 04:09:59,132 INFO L226 Difference]: Without dead ends: 5579 [2022-02-09 04:09:59,132 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 511 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=235, Invalid=2215, Unknown=0, NotChecked=0, Total=2450 [2022-02-09 04:09:59,132 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 [2022-02-09 04:09:59,132 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] [2022-02-09 04:09:59,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5579 states. [2022-02-09 04:09:59,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5579 to 5315. [2022-02-09 04:09:59,188 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) [2022-02-09 04:09:59,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5315 states to 5315 states and 17970 transitions. [2022-02-09 04:09:59,198 INFO L78 Accepts]: Start accepts. Automaton has 5315 states and 17970 transitions. Word has length 39 [2022-02-09 04:09:59,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:09:59,198 INFO L470 AbstractCegarLoop]: Abstraction has 5315 states and 17970 transitions. [2022-02-09 04:09:59,198 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:09:59,198 INFO L276 IsEmpty]: Start isEmpty. Operand 5315 states and 17970 transitions. [2022-02-09 04:09:59,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:09:59,204 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:09:59,205 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:09:59,205 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable399 [2022-02-09 04:09:59,205 INFO L402 AbstractCegarLoop]: === Iteration 401 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:09:59,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:09:59,205 INFO L85 PathProgramCache]: Analyzing trace with hash -1439915432, now seen corresponding path program 401 times [2022-02-09 04:09:59,205 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:09:59,205 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407854398] [2022-02-09 04:09:59,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:09:59,205 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:09:59,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:09:59,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:09:59,413 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:09:59,413 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407854398] [2022-02-09 04:09:59,413 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407854398] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:09:59,413 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:09:59,413 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:09:59,413 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937113532] [2022-02-09 04:09:59,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:09:59,414 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:09:59,414 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:09:59,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:09:59,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:09:59,414 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) [2022-02-09 04:10:00,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:10:00,567 INFO L93 Difference]: Finished difference Result 5624 states and 18861 transitions. [2022-02-09 04:10:00,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-02-09 04:10:00,567 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:10:00,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:10:00,578 INFO L225 Difference]: With dead ends: 5624 [2022-02-09 04:10:00,578 INFO L226 Difference]: Without dead ends: 5573 [2022-02-09 04:10:00,579 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 543 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=239, Invalid=2311, Unknown=0, NotChecked=0, Total=2550 [2022-02-09 04:10:00,579 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 [2022-02-09 04:10:00,579 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] [2022-02-09 04:10:00,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5573 states. [2022-02-09 04:10:00,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5573 to 5309. [2022-02-09 04:10:00,638 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) [2022-02-09 04:10:00,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5309 states to 5309 states and 17955 transitions. [2022-02-09 04:10:00,680 INFO L78 Accepts]: Start accepts. Automaton has 5309 states and 17955 transitions. Word has length 39 [2022-02-09 04:10:00,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:10:00,680 INFO L470 AbstractCegarLoop]: Abstraction has 5309 states and 17955 transitions. [2022-02-09 04:10:00,680 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:10:00,680 INFO L276 IsEmpty]: Start isEmpty. Operand 5309 states and 17955 transitions. [2022-02-09 04:10:00,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:10:00,686 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:10:00,686 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:10:00,687 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable400 [2022-02-09 04:10:00,687 INFO L402 AbstractCegarLoop]: === Iteration 402 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:10:00,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:10:00,687 INFO L85 PathProgramCache]: Analyzing trace with hash -1065582924, now seen corresponding path program 402 times [2022-02-09 04:10:00,687 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:10:00,687 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677641376] [2022-02-09 04:10:00,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:10:00,687 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:10:00,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:10:00,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:10:00,892 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:10:00,892 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677641376] [2022-02-09 04:10:00,892 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677641376] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:10:00,892 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:10:00,892 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:10:00,892 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120090819] [2022-02-09 04:10:00,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:10:00,893 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:10:00,893 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:10:00,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:10:00,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:10:00,893 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) [2022-02-09 04:10:03,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:10:03,852 INFO L93 Difference]: Finished difference Result 9865 states and 32666 transitions. [2022-02-09 04:10:03,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2022-02-09 04:10:03,852 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:10:03,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:10:03,870 INFO L225 Difference]: With dead ends: 9865 [2022-02-09 04:10:03,870 INFO L226 Difference]: Without dead ends: 9742 [2022-02-09 04:10:03,871 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3079 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=742, Invalid=8764, Unknown=0, NotChecked=0, Total=9506 [2022-02-09 04:10:03,871 INFO L933 BasicCegarLoop]: 281 mSDtfsCounter, 546 mSDsluCounter, 3446 mSDsCounter, 0 mSdLazyCounter, 4080 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s 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, 1.3s IncrementalHoareTripleChecker+Time [2022-02-09 04:10:03,871 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [546 Valid, 3155 Invalid, 4206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 4080 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-02-09 04:10:03,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9742 states. [2022-02-09 04:10:03,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9742 to 5434. [2022-02-09 04:10:03,955 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) [2022-02-09 04:10:03,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5434 states to 5434 states and 18373 transitions. [2022-02-09 04:10:03,965 INFO L78 Accepts]: Start accepts. Automaton has 5434 states and 18373 transitions. Word has length 39 [2022-02-09 04:10:03,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:10:03,965 INFO L470 AbstractCegarLoop]: Abstraction has 5434 states and 18373 transitions. [2022-02-09 04:10:03,965 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) [2022-02-09 04:10:03,965 INFO L276 IsEmpty]: Start isEmpty. Operand 5434 states and 18373 transitions. [2022-02-09 04:10:03,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:10:03,972 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:10:03,972 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] [2022-02-09 04:10:03,972 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable401 [2022-02-09 04:10:03,972 INFO L402 AbstractCegarLoop]: === Iteration 403 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:10:03,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:10:03,973 INFO L85 PathProgramCache]: Analyzing trace with hash 1471399958, now seen corresponding path program 403 times [2022-02-09 04:10:03,973 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:10:03,973 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744293591] [2022-02-09 04:10:03,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:10:03,973 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:10:03,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:10:04,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:10:04,177 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:10:04,177 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744293591] [2022-02-09 04:10:04,177 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744293591] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:10:04,177 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:10:04,177 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:10:04,177 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32164379] [2022-02-09 04:10:04,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:10:04,177 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:10:04,177 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:10:04,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:10:04,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:10:04,177 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) [2022-02-09 04:10:07,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:10:07,205 INFO L93 Difference]: Finished difference Result 9720 states and 32238 transitions. [2022-02-09 04:10:07,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2022-02-09 04:10:07,205 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:10:07,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:10:07,224 INFO L225 Difference]: With dead ends: 9720 [2022-02-09 04:10:07,224 INFO L226 Difference]: Without dead ends: 9525 [2022-02-09 04:10:07,225 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2920 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=705, Invalid=8415, Unknown=0, NotChecked=0, Total=9120 [2022-02-09 04:10:07,225 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, 1.4s IncrementalHoareTripleChecker+Time [2022-02-09 04:10:07,225 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [515 Valid, 3263 Invalid, 4330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 4207 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-02-09 04:10:07,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9525 states. [2022-02-09 04:10:07,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9525 to 5493. [2022-02-09 04:10:07,308 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) [2022-02-09 04:10:07,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5493 states to 5493 states and 18573 transitions. [2022-02-09 04:10:07,318 INFO L78 Accepts]: Start accepts. Automaton has 5493 states and 18573 transitions. Word has length 39 [2022-02-09 04:10:07,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:10:07,318 INFO L470 AbstractCegarLoop]: Abstraction has 5493 states and 18573 transitions. [2022-02-09 04:10:07,318 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) [2022-02-09 04:10:07,318 INFO L276 IsEmpty]: Start isEmpty. Operand 5493 states and 18573 transitions. [2022-02-09 04:10:07,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:10:07,325 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:10:07,325 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] [2022-02-09 04:10:07,325 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable402 [2022-02-09 04:10:07,326 INFO L402 AbstractCegarLoop]: === Iteration 404 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:10:07,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:10:07,326 INFO L85 PathProgramCache]: Analyzing trace with hash -592147604, now seen corresponding path program 404 times [2022-02-09 04:10:07,326 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:10:07,326 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661797931] [2022-02-09 04:10:07,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:10:07,326 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:10:07,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:10:07,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:10:07,532 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:10:07,532 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661797931] [2022-02-09 04:10:07,532 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661797931] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:10:07,532 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:10:07,532 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:10:07,532 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782393400] [2022-02-09 04:10:07,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:10:07,532 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:10:07,532 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:10:07,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:10:07,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:10:07,533 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) [2022-02-09 04:10:09,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:10:09,214 INFO L93 Difference]: Finished difference Result 7872 states and 26181 transitions. [2022-02-09 04:10:09,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-02-09 04:10:09,214 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:10:09,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:10:09,229 INFO L225 Difference]: With dead ends: 7872 [2022-02-09 04:10:09,229 INFO L226 Difference]: Without dead ends: 7754 [2022-02-09 04:10:09,230 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1284 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=407, Invalid=4285, Unknown=0, NotChecked=0, Total=4692 [2022-02-09 04:10:09,230 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 [2022-02-09 04:10:09,230 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] [2022-02-09 04:10:09,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7754 states. [2022-02-09 04:10:09,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7754 to 5504. [2022-02-09 04:10:09,308 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) [2022-02-09 04:10:09,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5504 states to 5504 states and 18609 transitions. [2022-02-09 04:10:09,319 INFO L78 Accepts]: Start accepts. Automaton has 5504 states and 18609 transitions. Word has length 39 [2022-02-09 04:10:09,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:10:09,319 INFO L470 AbstractCegarLoop]: Abstraction has 5504 states and 18609 transitions. [2022-02-09 04:10:09,319 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:10:09,319 INFO L276 IsEmpty]: Start isEmpty. Operand 5504 states and 18609 transitions. [2022-02-09 04:10:09,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:10:09,326 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:10:09,326 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:10:09,326 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable403 [2022-02-09 04:10:09,326 INFO L402 AbstractCegarLoop]: === Iteration 405 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:10:09,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:10:09,327 INFO L85 PathProgramCache]: Analyzing trace with hash 580504618, now seen corresponding path program 405 times [2022-02-09 04:10:09,327 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:10:09,327 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003671317] [2022-02-09 04:10:09,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:10:09,327 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:10:09,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:10:09,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:10:09,533 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:10:09,533 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003671317] [2022-02-09 04:10:09,533 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003671317] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:10:09,533 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:10:09,533 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:10:09,533 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198018365] [2022-02-09 04:10:09,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:10:09,533 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:10:09,533 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:10:09,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:10:09,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:10:09,533 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) [2022-02-09 04:10:11,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:10:11,540 INFO L93 Difference]: Finished difference Result 8538 states and 28553 transitions. [2022-02-09 04:10:11,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2022-02-09 04:10:11,541 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:10:11,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:10:11,557 INFO L225 Difference]: With dead ends: 8538 [2022-02-09 04:10:11,557 INFO L226 Difference]: Without dead ends: 8478 [2022-02-09 04:10:11,557 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1653 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=469, Invalid=5231, Unknown=0, NotChecked=0, Total=5700 [2022-02-09 04:10:11,557 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, 0.9s IncrementalHoareTripleChecker+Time [2022-02-09 04:10:11,557 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [476 Valid, 2472 Invalid, 3036 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 2946 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-09 04:10:11,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8478 states. [2022-02-09 04:10:11,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8478 to 5502. [2022-02-09 04:10:11,632 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) [2022-02-09 04:10:11,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5502 states to 5502 states and 18604 transitions. [2022-02-09 04:10:11,642 INFO L78 Accepts]: Start accepts. Automaton has 5502 states and 18604 transitions. Word has length 39 [2022-02-09 04:10:11,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:10:11,642 INFO L470 AbstractCegarLoop]: Abstraction has 5502 states and 18604 transitions. [2022-02-09 04:10:11,642 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:10:11,642 INFO L276 IsEmpty]: Start isEmpty. Operand 5502 states and 18604 transitions. [2022-02-09 04:10:11,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:10:11,650 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:10:11,650 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:10:11,650 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable404 [2022-02-09 04:10:11,650 INFO L402 AbstractCegarLoop]: === Iteration 406 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:10:11,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:10:11,650 INFO L85 PathProgramCache]: Analyzing trace with hash -1296898984, now seen corresponding path program 406 times [2022-02-09 04:10:11,650 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:10:11,650 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432605037] [2022-02-09 04:10:11,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:10:11,650 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:10:11,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:10:11,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:10:11,854 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:10:11,854 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432605037] [2022-02-09 04:10:11,854 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432605037] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:10:11,854 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:10:11,854 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:10:11,854 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443159508] [2022-02-09 04:10:11,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:10:11,854 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:10:11,854 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:10:11,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:10:11,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:10:11,854 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) [2022-02-09 04:10:13,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:10:13,319 INFO L93 Difference]: Finished difference Result 7666 states and 25683 transitions. [2022-02-09 04:10:13,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-02-09 04:10:13,320 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:10:13,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:10:13,334 INFO L225 Difference]: With dead ends: 7666 [2022-02-09 04:10:13,334 INFO L226 Difference]: Without dead ends: 7575 [2022-02-09 04:10:13,335 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 [2022-02-09 04:10:13,335 INFO L933 BasicCegarLoop]: 192 mSDtfsCounter, 417 mSDsluCounter, 2120 mSDsCounter, 0 mSdLazyCounter, 2471 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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 [2022-02-09 04:10:13,335 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] [2022-02-09 04:10:13,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7575 states. [2022-02-09 04:10:13,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7575 to 5502. [2022-02-09 04:10:13,444 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) [2022-02-09 04:10:13,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5502 states to 5502 states and 18598 transitions. [2022-02-09 04:10:13,454 INFO L78 Accepts]: Start accepts. Automaton has 5502 states and 18598 transitions. Word has length 39 [2022-02-09 04:10:13,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:10:13,455 INFO L470 AbstractCegarLoop]: Abstraction has 5502 states and 18598 transitions. [2022-02-09 04:10:13,455 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:10:13,455 INFO L276 IsEmpty]: Start isEmpty. Operand 5502 states and 18598 transitions. [2022-02-09 04:10:13,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:10:13,462 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:10:13,462 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] [2022-02-09 04:10:13,462 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable405 [2022-02-09 04:10:13,462 INFO L402 AbstractCegarLoop]: === Iteration 407 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:10:13,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:10:13,462 INFO L85 PathProgramCache]: Analyzing trace with hash 1495586106, now seen corresponding path program 407 times [2022-02-09 04:10:13,462 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:10:13,462 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089083402] [2022-02-09 04:10:13,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:10:13,462 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:10:13,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:10:13,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:10:13,669 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:10:13,669 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089083402] [2022-02-09 04:10:13,669 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089083402] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:10:13,669 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:10:13,669 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:10:13,669 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842452471] [2022-02-09 04:10:13,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:10:13,669 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:10:13,669 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:10:13,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:10:13,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:10:13,670 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) [2022-02-09 04:10:15,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:10:15,586 INFO L93 Difference]: Finished difference Result 8536 states and 28660 transitions. [2022-02-09 04:10:15,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-02-09 04:10:15,586 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:10:15,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:10:15,603 INFO L225 Difference]: With dead ends: 8536 [2022-02-09 04:10:15,603 INFO L226 Difference]: Without dead ends: 8436 [2022-02-09 04:10:15,603 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1426 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=423, Invalid=4689, Unknown=0, NotChecked=0, Total=5112 [2022-02-09 04:10:15,604 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 [2022-02-09 04:10:15,604 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] [2022-02-09 04:10:15,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8436 states. [2022-02-09 04:10:15,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8436 to 5493. [2022-02-09 04:10:15,683 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) [2022-02-09 04:10:15,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5493 states to 5493 states and 18570 transitions. [2022-02-09 04:10:15,693 INFO L78 Accepts]: Start accepts. Automaton has 5493 states and 18570 transitions. Word has length 39 [2022-02-09 04:10:15,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:10:15,693 INFO L470 AbstractCegarLoop]: Abstraction has 5493 states and 18570 transitions. [2022-02-09 04:10:15,693 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:10:15,693 INFO L276 IsEmpty]: Start isEmpty. Operand 5493 states and 18570 transitions. [2022-02-09 04:10:15,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:10:15,700 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:10:15,700 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:10:15,701 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable406 [2022-02-09 04:10:15,701 INFO L402 AbstractCegarLoop]: === Iteration 408 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:10:15,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:10:15,701 INFO L85 PathProgramCache]: Analyzing trace with hash -1624510450, now seen corresponding path program 408 times [2022-02-09 04:10:15,701 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:10:15,701 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837995984] [2022-02-09 04:10:15,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:10:15,701 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:10:15,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:10:15,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:10:15,925 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:10:15,925 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837995984] [2022-02-09 04:10:15,925 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837995984] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:10:15,925 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:10:15,925 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:10:15,925 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372009606] [2022-02-09 04:10:15,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:10:15,925 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:10:15,925 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:10:15,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:10:15,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:10:15,925 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) [2022-02-09 04:10:17,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:10:17,190 INFO L93 Difference]: Finished difference Result 5889 states and 19625 transitions. [2022-02-09 04:10:17,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-02-09 04:10:17,191 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:10:17,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:10:17,202 INFO L225 Difference]: With dead ends: 5889 [2022-02-09 04:10:17,202 INFO L226 Difference]: Without dead ends: 5834 [2022-02-09 04:10:17,202 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 682 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=279, Invalid=2691, Unknown=0, NotChecked=0, Total=2970 [2022-02-09 04:10:17,202 INFO L933 BasicCegarLoop]: 112 mSDtfsCounter, 295 mSDsluCounter, 1366 mSDsCounter, 0 mSdLazyCounter, 1881 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 04:10:17,202 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [295 Valid, 1140 Invalid, 1952 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 1881 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 04:10:17,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5834 states. [2022-02-09 04:10:17,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5834 to 5511. [2022-02-09 04:10:17,263 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) [2022-02-09 04:10:17,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5511 states to 5511 states and 18615 transitions. [2022-02-09 04:10:17,274 INFO L78 Accepts]: Start accepts. Automaton has 5511 states and 18615 transitions. Word has length 39 [2022-02-09 04:10:17,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:10:17,274 INFO L470 AbstractCegarLoop]: Abstraction has 5511 states and 18615 transitions. [2022-02-09 04:10:17,274 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:10:17,274 INFO L276 IsEmpty]: Start isEmpty. Operand 5511 states and 18615 transitions. [2022-02-09 04:10:17,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:10:17,281 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:10:17,281 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:10:17,281 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable407 [2022-02-09 04:10:17,281 INFO L402 AbstractCegarLoop]: === Iteration 409 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:10:17,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:10:17,282 INFO L85 PathProgramCache]: Analyzing trace with hash -451858228, now seen corresponding path program 409 times [2022-02-09 04:10:17,282 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:10:17,282 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395992480] [2022-02-09 04:10:17,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:10:17,282 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:10:17,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:10:17,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:10:17,487 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:10:17,487 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395992480] [2022-02-09 04:10:17,487 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395992480] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:10:17,487 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:10:17,487 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:10:17,488 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585501335] [2022-02-09 04:10:17,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:10:17,488 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:10:17,488 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:10:17,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:10:17,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:10:17,488 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) [2022-02-09 04:10:18,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:10:18,711 INFO L93 Difference]: Finished difference Result 5859 states and 19550 transitions. [2022-02-09 04:10:18,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-02-09 04:10:18,711 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:10:18,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:10:18,723 INFO L225 Difference]: With dead ends: 5859 [2022-02-09 04:10:18,723 INFO L226 Difference]: Without dead ends: 5799 [2022-02-09 04:10:18,723 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 607 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=270, Invalid=2486, Unknown=0, NotChecked=0, Total=2756 [2022-02-09 04:10:18,723 INFO L933 BasicCegarLoop]: 108 mSDtfsCounter, 298 mSDsluCounter, 1331 mSDsCounter, 0 mSdLazyCounter, 1752 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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 [2022-02-09 04:10:18,723 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] [2022-02-09 04:10:18,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5799 states. [2022-02-09 04:10:18,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5799 to 5509. [2022-02-09 04:10:18,803 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) [2022-02-09 04:10:18,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5509 states to 5509 states and 18609 transitions. [2022-02-09 04:10:18,814 INFO L78 Accepts]: Start accepts. Automaton has 5509 states and 18609 transitions. Word has length 39 [2022-02-09 04:10:18,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:10:18,814 INFO L470 AbstractCegarLoop]: Abstraction has 5509 states and 18609 transitions. [2022-02-09 04:10:18,814 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) [2022-02-09 04:10:18,814 INFO L276 IsEmpty]: Start isEmpty. Operand 5509 states and 18609 transitions. [2022-02-09 04:10:18,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:10:18,822 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:10:18,822 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:10:18,822 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable408 [2022-02-09 04:10:18,822 INFO L402 AbstractCegarLoop]: === Iteration 410 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:10:18,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:10:18,822 INFO L85 PathProgramCache]: Analyzing trace with hash -519603108, now seen corresponding path program 410 times [2022-02-09 04:10:18,822 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:10:18,822 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556143869] [2022-02-09 04:10:18,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:10:18,822 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:10:18,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:10:19,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:10:19,026 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:10:19,027 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556143869] [2022-02-09 04:10:19,027 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556143869] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:10:19,027 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:10:19,027 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:10:19,027 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63027947] [2022-02-09 04:10:19,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:10:19,027 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:10:19,027 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:10:19,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:10:19,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:10:19,027 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) [2022-02-09 04:10:20,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:10:20,184 INFO L93 Difference]: Finished difference Result 5814 states and 19441 transitions. [2022-02-09 04:10:20,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-02-09 04:10:20,184 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:10:20,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:10:20,195 INFO L225 Difference]: With dead ends: 5814 [2022-02-09 04:10:20,195 INFO L226 Difference]: Without dead ends: 5771 [2022-02-09 04:10:20,196 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 [2022-02-09 04:10:20,196 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 04:10:20,196 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [269 Valid, 1094 Invalid, 1851 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 1803 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 04:10:20,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5771 states. [2022-02-09 04:10:20,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5771 to 5515. [2022-02-09 04:10:20,255 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) [2022-02-09 04:10:20,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5515 states to 5515 states and 18622 transitions. [2022-02-09 04:10:20,266 INFO L78 Accepts]: Start accepts. Automaton has 5515 states and 18622 transitions. Word has length 39 [2022-02-09 04:10:20,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:10:20,266 INFO L470 AbstractCegarLoop]: Abstraction has 5515 states and 18622 transitions. [2022-02-09 04:10:20,266 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:10:20,266 INFO L276 IsEmpty]: Start isEmpty. Operand 5515 states and 18622 transitions. [2022-02-09 04:10:20,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:10:20,273 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:10:20,273 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:10:20,273 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable409 [2022-02-09 04:10:20,273 INFO L402 AbstractCegarLoop]: === Iteration 411 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:10:20,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:10:20,274 INFO L85 PathProgramCache]: Analyzing trace with hash 1230504028, now seen corresponding path program 411 times [2022-02-09 04:10:20,274 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:10:20,274 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140413951] [2022-02-09 04:10:20,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:10:20,274 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:10:20,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:10:20,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:10:20,480 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:10:20,480 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140413951] [2022-02-09 04:10:20,480 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140413951] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:10:20,480 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:10:20,480 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:10:20,480 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838595928] [2022-02-09 04:10:20,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:10:20,480 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:10:20,480 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:10:20,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:10:20,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:10:20,481 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) [2022-02-09 04:10:21,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:10:21,663 INFO L93 Difference]: Finished difference Result 5897 states and 19623 transitions. [2022-02-09 04:10:21,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-02-09 04:10:21,663 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 [2022-02-09 04:10:21,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:10:21,673 INFO L225 Difference]: With dead ends: 5897 [2022-02-09 04:10:21,673 INFO L226 Difference]: Without dead ends: 5785 [2022-02-09 04:10:21,674 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 572 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=254, Invalid=2398, Unknown=0, NotChecked=0, Total=2652 [2022-02-09 04:10:21,674 INFO L933 BasicCegarLoop]: 104 mSDtfsCounter, 268 mSDsluCounter, 1302 mSDsCounter, 0 mSdLazyCounter, 1745 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 04:10:21,674 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [268 Valid, 1063 Invalid, 1794 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1745 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 04:10:21,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5785 states. [2022-02-09 04:10:21,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5785 to 5515. [2022-02-09 04:10:21,730 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) [2022-02-09 04:10:21,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5515 states to 5515 states and 18603 transitions. [2022-02-09 04:10:21,740 INFO L78 Accepts]: Start accepts. Automaton has 5515 states and 18603 transitions. Word has length 39 [2022-02-09 04:10:21,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:10:21,740 INFO L470 AbstractCegarLoop]: Abstraction has 5515 states and 18603 transitions. [2022-02-09 04:10:21,740 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:10:21,740 INFO L276 IsEmpty]: Start isEmpty. Operand 5515 states and 18603 transitions. [2022-02-09 04:10:21,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:10:21,747 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:10:21,747 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:10:21,747 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable410 [2022-02-09 04:10:21,747 INFO L402 AbstractCegarLoop]: === Iteration 412 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:10:21,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:10:21,748 INFO L85 PathProgramCache]: Analyzing trace with hash 1847722430, now seen corresponding path program 412 times [2022-02-09 04:10:21,748 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:10:21,748 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116909203] [2022-02-09 04:10:21,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:10:21,748 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:10:21,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:10:21,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:10:21,950 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:10:21,950 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116909203] [2022-02-09 04:10:21,950 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116909203] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:10:21,950 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:10:21,951 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:10:21,951 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909085161] [2022-02-09 04:10:21,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:10:21,951 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:10:21,951 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:10:21,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:10:21,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:10:21,951 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) [2022-02-09 04:10:23,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:10:23,009 INFO L93 Difference]: Finished difference Result 5816 states and 19421 transitions. [2022-02-09 04:10:23,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-02-09 04:10:23,009 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:10:23,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:10:23,021 INFO L225 Difference]: With dead ends: 5816 [2022-02-09 04:10:23,021 INFO L226 Difference]: Without dead ends: 5770 [2022-02-09 04:10:23,021 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 [2022-02-09 04:10:23,021 INFO L933 BasicCegarLoop]: 101 mSDtfsCounter, 255 mSDsluCounter, 1242 mSDsCounter, 0 mSdLazyCounter, 1705 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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 [2022-02-09 04:10:23,021 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] [2022-02-09 04:10:23,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5770 states. [2022-02-09 04:10:23,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5770 to 5507. [2022-02-09 04:10:23,081 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) [2022-02-09 04:10:23,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5507 states to 5507 states and 18591 transitions. [2022-02-09 04:10:23,092 INFO L78 Accepts]: Start accepts. Automaton has 5507 states and 18591 transitions. Word has length 39 [2022-02-09 04:10:23,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:10:23,093 INFO L470 AbstractCegarLoop]: Abstraction has 5507 states and 18591 transitions. [2022-02-09 04:10:23,093 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) [2022-02-09 04:10:23,093 INFO L276 IsEmpty]: Start isEmpty. Operand 5507 states and 18591 transitions. [2022-02-09 04:10:23,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:10:23,100 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:10:23,100 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] [2022-02-09 04:10:23,100 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable411 [2022-02-09 04:10:23,100 INFO L402 AbstractCegarLoop]: === Iteration 413 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:10:23,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:10:23,100 INFO L85 PathProgramCache]: Analyzing trace with hash 412654940, now seen corresponding path program 413 times [2022-02-09 04:10:23,100 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:10:23,100 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304807476] [2022-02-09 04:10:23,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:10:23,100 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:10:23,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:10:23,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:10:23,305 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:10:23,305 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304807476] [2022-02-09 04:10:23,305 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304807476] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:10:23,305 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:10:23,305 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:10:23,305 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935840687] [2022-02-09 04:10:23,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:10:23,305 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:10:23,305 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:10:23,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:10:23,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:10:23,305 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) [2022-02-09 04:10:24,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:10:24,357 INFO L93 Difference]: Finished difference Result 5800 states and 19385 transitions. [2022-02-09 04:10:24,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-02-09 04:10:24,357 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:10:24,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:10:24,368 INFO L225 Difference]: With dead ends: 5800 [2022-02-09 04:10:24,368 INFO L226 Difference]: Without dead ends: 5725 [2022-02-09 04:10:24,368 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 [2022-02-09 04:10:24,368 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 [2022-02-09 04:10:24,368 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] [2022-02-09 04:10:24,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5725 states. [2022-02-09 04:10:24,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5725 to 5477. [2022-02-09 04:10:24,428 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) [2022-02-09 04:10:24,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5477 states to 5477 states and 18522 transitions. [2022-02-09 04:10:24,439 INFO L78 Accepts]: Start accepts. Automaton has 5477 states and 18522 transitions. Word has length 39 [2022-02-09 04:10:24,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:10:24,439 INFO L470 AbstractCegarLoop]: Abstraction has 5477 states and 18522 transitions. [2022-02-09 04:10:24,439 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:10:24,439 INFO L276 IsEmpty]: Start isEmpty. Operand 5477 states and 18522 transitions. [2022-02-09 04:10:24,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:10:24,446 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:10:24,446 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] [2022-02-09 04:10:24,446 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable412 [2022-02-09 04:10:24,446 INFO L402 AbstractCegarLoop]: === Iteration 414 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:10:24,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:10:24,446 INFO L85 PathProgramCache]: Analyzing trace with hash -870048178, now seen corresponding path program 414 times [2022-02-09 04:10:24,446 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:10:24,446 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995334631] [2022-02-09 04:10:24,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:10:24,447 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:10:24,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:10:24,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:10:24,649 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:10:24,649 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995334631] [2022-02-09 04:10:24,650 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995334631] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:10:24,650 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:10:24,650 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:10:24,650 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011255747] [2022-02-09 04:10:24,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:10:24,650 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:10:24,650 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:10:24,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:10:24,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:10:24,650 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) [2022-02-09 04:10:25,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:10:25,658 INFO L93 Difference]: Finished difference Result 5735 states and 19239 transitions. [2022-02-09 04:10:25,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-02-09 04:10:25,658 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:10:25,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:10:25,669 INFO L225 Difference]: With dead ends: 5735 [2022-02-09 04:10:25,669 INFO L226 Difference]: Without dead ends: 5677 [2022-02-09 04:10:25,669 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 420 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=212, Invalid=1950, Unknown=0, NotChecked=0, Total=2162 [2022-02-09 04:10:25,669 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 232 mSDsluCounter, 1155 mSDsCounter, 0 mSdLazyCounter, 1656 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.5s IncrementalHoareTripleChecker+Time [2022-02-09 04:10:25,669 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [232 Valid, 948 Invalid, 1696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1656 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-09 04:10:25,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5677 states. [2022-02-09 04:10:25,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5677 to 5476. [2022-02-09 04:10:25,727 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) [2022-02-09 04:10:25,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5476 states to 5476 states and 18520 transitions. [2022-02-09 04:10:25,737 INFO L78 Accepts]: Start accepts. Automaton has 5476 states and 18520 transitions. Word has length 39 [2022-02-09 04:10:25,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:10:25,738 INFO L470 AbstractCegarLoop]: Abstraction has 5476 states and 18520 transitions. [2022-02-09 04:10:25,738 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) [2022-02-09 04:10:25,738 INFO L276 IsEmpty]: Start isEmpty. Operand 5476 states and 18520 transitions. [2022-02-09 04:10:25,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:10:25,745 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:10:25,745 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] [2022-02-09 04:10:25,745 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable413 [2022-02-09 04:10:25,745 INFO L402 AbstractCegarLoop]: === Iteration 415 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:10:25,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:10:25,745 INFO L85 PathProgramCache]: Analyzing trace with hash 468708410, now seen corresponding path program 415 times [2022-02-09 04:10:25,745 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:10:25,745 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571580057] [2022-02-09 04:10:25,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:10:25,745 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:10:25,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:10:25,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:10:25,951 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:10:25,951 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571580057] [2022-02-09 04:10:25,951 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1571580057] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:10:25,951 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:10:25,951 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:10:25,951 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651602345] [2022-02-09 04:10:25,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:10:25,951 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:10:25,951 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:10:25,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:10:25,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:10:25,952 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) [2022-02-09 04:10:26,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:10:26,941 INFO L93 Difference]: Finished difference Result 5675 states and 19108 transitions. [2022-02-09 04:10:26,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-09 04:10:26,941 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 [2022-02-09 04:10:26,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:10:26,951 INFO L225 Difference]: With dead ends: 5675 [2022-02-09 04:10:26,952 INFO L226 Difference]: Without dead ends: 5575 [2022-02-09 04:10:26,952 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 418 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=205, Invalid=1957, Unknown=0, NotChecked=0, Total=2162 [2022-02-09 04:10:26,952 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 [2022-02-09 04:10:26,952 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] [2022-02-09 04:10:26,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5575 states. [2022-02-09 04:10:27,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5575 to 5437. [2022-02-09 04:10:27,010 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) [2022-02-09 04:10:27,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5437 states to 5437 states and 18434 transitions. [2022-02-09 04:10:27,020 INFO L78 Accepts]: Start accepts. Automaton has 5437 states and 18434 transitions. Word has length 39 [2022-02-09 04:10:27,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:10:27,020 INFO L470 AbstractCegarLoop]: Abstraction has 5437 states and 18434 transitions. [2022-02-09 04:10:27,020 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) [2022-02-09 04:10:27,020 INFO L276 IsEmpty]: Start isEmpty. Operand 5437 states and 18434 transitions. [2022-02-09 04:10:27,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:10:27,027 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:10:27,027 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] [2022-02-09 04:10:27,027 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable414 [2022-02-09 04:10:27,028 INFO L402 AbstractCegarLoop]: === Iteration 416 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:10:27,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:10:27,028 INFO L85 PathProgramCache]: Analyzing trace with hash 688501160, now seen corresponding path program 416 times [2022-02-09 04:10:27,028 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:10:27,028 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771674764] [2022-02-09 04:10:27,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:10:27,028 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:10:27,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:10:27,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:10:27,234 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:10:27,234 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771674764] [2022-02-09 04:10:27,234 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771674764] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:10:27,234 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:10:27,235 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:10:27,235 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774017832] [2022-02-09 04:10:27,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:10:27,235 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:10:27,235 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:10:27,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:10:27,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:10:27,235 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) [2022-02-09 04:10:28,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:10:28,920 INFO L93 Difference]: Finished difference Result 7983 states and 26964 transitions. [2022-02-09 04:10:28,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-02-09 04:10:28,920 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:10:28,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:10:28,936 INFO L225 Difference]: With dead ends: 7983 [2022-02-09 04:10:28,936 INFO L226 Difference]: Without dead ends: 7940 [2022-02-09 04:10:28,936 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 [2022-02-09 04:10:28,936 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, 0.9s IncrementalHoareTripleChecker+Time [2022-02-09 04:10:28,936 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [450 Valid, 1991 Invalid, 2836 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 2747 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-09 04:10:28,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7940 states. [2022-02-09 04:10:29,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7940 to 5471. [2022-02-09 04:10:29,030 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) [2022-02-09 04:10:29,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5471 states to 5471 states and 18541 transitions. [2022-02-09 04:10:29,040 INFO L78 Accepts]: Start accepts. Automaton has 5471 states and 18541 transitions. Word has length 39 [2022-02-09 04:10:29,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:10:29,040 INFO L470 AbstractCegarLoop]: Abstraction has 5471 states and 18541 transitions. [2022-02-09 04:10:29,040 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:10:29,040 INFO L276 IsEmpty]: Start isEmpty. Operand 5471 states and 18541 transitions. [2022-02-09 04:10:29,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:10:29,047 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:10:29,047 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:10:29,047 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable415 [2022-02-09 04:10:29,047 INFO L402 AbstractCegarLoop]: === Iteration 417 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:10:29,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:10:29,048 INFO L85 PathProgramCache]: Analyzing trace with hash -1092097142, now seen corresponding path program 417 times [2022-02-09 04:10:29,048 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:10:29,048 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272863692] [2022-02-09 04:10:29,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:10:29,048 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:10:29,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:10:29,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:10:29,251 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:10:29,251 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272863692] [2022-02-09 04:10:29,252 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272863692] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:10:29,252 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:10:29,252 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:10:29,252 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531794230] [2022-02-09 04:10:29,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:10:29,252 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:10:29,252 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:10:29,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:10:29,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:10:29,252 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) [2022-02-09 04:10:31,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:10:31,166 INFO L93 Difference]: Finished difference Result 8808 states and 29786 transitions. [2022-02-09 04:10:31,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-02-09 04:10:31,166 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:10:31,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:10:31,183 INFO L225 Difference]: With dead ends: 8808 [2022-02-09 04:10:31,183 INFO L226 Difference]: Without dead ends: 8756 [2022-02-09 04:10:31,184 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1429 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=405, Invalid=4707, Unknown=0, NotChecked=0, Total=5112 [2022-02-09 04:10:31,184 INFO L933 BasicCegarLoop]: 218 mSDtfsCounter, 489 mSDsluCounter, 2491 mSDsCounter, 0 mSdLazyCounter, 3081 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s 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, 1.0s IncrementalHoareTripleChecker+Time [2022-02-09 04:10:31,184 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [489 Valid, 2366 Invalid, 3178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 3081 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-02-09 04:10:31,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8756 states. [2022-02-09 04:10:31,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8756 to 5437. [2022-02-09 04:10:31,261 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) [2022-02-09 04:10:31,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5437 states to 5437 states and 18434 transitions. [2022-02-09 04:10:31,272 INFO L78 Accepts]: Start accepts. Automaton has 5437 states and 18434 transitions. Word has length 39 [2022-02-09 04:10:31,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:10:31,272 INFO L470 AbstractCegarLoop]: Abstraction has 5437 states and 18434 transitions. [2022-02-09 04:10:31,272 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:10:31,272 INFO L276 IsEmpty]: Start isEmpty. Operand 5437 states and 18434 transitions. [2022-02-09 04:10:31,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:10:31,279 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:10:31,279 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:10:31,279 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable416 [2022-02-09 04:10:31,279 INFO L402 AbstractCegarLoop]: === Iteration 418 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:10:31,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:10:31,279 INFO L85 PathProgramCache]: Analyzing trace with hash 1606984730, now seen corresponding path program 418 times [2022-02-09 04:10:31,279 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:10:31,279 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703106578] [2022-02-09 04:10:31,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:10:31,279 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:10:31,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:10:31,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:10:31,500 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:10:31,500 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703106578] [2022-02-09 04:10:31,500 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703106578] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:10:31,500 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:10:31,500 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:10:31,501 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498716804] [2022-02-09 04:10:31,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:10:31,501 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:10:31,501 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:10:31,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:10:31,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:10:31,501 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) [2022-02-09 04:10:32,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:10:32,835 INFO L93 Difference]: Finished difference Result 7494 states and 25129 transitions. [2022-02-09 04:10:32,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-02-09 04:10:32,836 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:10:32,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:10:32,850 INFO L225 Difference]: With dead ends: 7494 [2022-02-09 04:10:32,851 INFO L226 Difference]: Without dead ends: 7439 [2022-02-09 04:10:32,851 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 713 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=286, Invalid=2794, Unknown=0, NotChecked=0, Total=3080 [2022-02-09 04:10:32,851 INFO L933 BasicCegarLoop]: 165 mSDtfsCounter, 390 mSDsluCounter, 1948 mSDsCounter, 0 mSdLazyCounter, 2379 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.7s IncrementalHoareTripleChecker+Time [2022-02-09 04:10:32,851 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [390 Valid, 1770 Invalid, 2444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 2379 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-09 04:10:32,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7439 states. [2022-02-09 04:10:32,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7439 to 5465. [2022-02-09 04:10:32,922 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) [2022-02-09 04:10:32,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5465 states to 5465 states and 18524 transitions. [2022-02-09 04:10:32,932 INFO L78 Accepts]: Start accepts. Automaton has 5465 states and 18524 transitions. Word has length 39 [2022-02-09 04:10:32,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:10:32,932 INFO L470 AbstractCegarLoop]: Abstraction has 5465 states and 18524 transitions. [2022-02-09 04:10:32,932 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) [2022-02-09 04:10:32,933 INFO L276 IsEmpty]: Start isEmpty. Operand 5465 states and 18524 transitions. [2022-02-09 04:10:32,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:10:32,940 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:10:32,940 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] [2022-02-09 04:10:32,940 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable417 [2022-02-09 04:10:32,940 INFO L402 AbstractCegarLoop]: === Iteration 419 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:10:32,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:10:32,940 INFO L85 PathProgramCache]: Analyzing trace with hash -1515330344, now seen corresponding path program 419 times [2022-02-09 04:10:32,940 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:10:32,940 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820254518] [2022-02-09 04:10:32,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:10:32,940 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:10:32,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:10:33,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:10:33,145 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:10:33,146 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820254518] [2022-02-09 04:10:33,146 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820254518] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:10:33,146 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:10:33,146 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:10:33,146 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902051149] [2022-02-09 04:10:33,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:10:33,146 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:10:33,146 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:10:33,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:10:33,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:10:33,146 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) [2022-02-09 04:10:34,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:10:34,708 INFO L93 Difference]: Finished difference Result 8175 states and 27493 transitions. [2022-02-09 04:10:34,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-02-09 04:10:34,709 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:10:34,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:10:34,724 INFO L225 Difference]: With dead ends: 8175 [2022-02-09 04:10:34,724 INFO L226 Difference]: Without dead ends: 8115 [2022-02-09 04:10:34,724 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 [2022-02-09 04:10:34,724 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 [2022-02-09 04:10:34,724 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] [2022-02-09 04:10:34,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8115 states. [2022-02-09 04:10:34,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8115 to 5463. [2022-02-09 04:10:34,793 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) [2022-02-09 04:10:34,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5463 states to 5463 states and 18519 transitions. [2022-02-09 04:10:34,803 INFO L78 Accepts]: Start accepts. Automaton has 5463 states and 18519 transitions. Word has length 39 [2022-02-09 04:10:34,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:10:34,804 INFO L470 AbstractCegarLoop]: Abstraction has 5463 states and 18519 transitions. [2022-02-09 04:10:34,804 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:10:34,804 INFO L276 IsEmpty]: Start isEmpty. Operand 5463 states and 18519 transitions. [2022-02-09 04:10:34,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:10:34,811 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:10:34,811 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:10:34,811 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable418 [2022-02-09 04:10:34,811 INFO L402 AbstractCegarLoop]: === Iteration 420 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:10:34,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:10:34,811 INFO L85 PathProgramCache]: Analyzing trace with hash 902233350, now seen corresponding path program 420 times [2022-02-09 04:10:34,811 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:10:34,811 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246573455] [2022-02-09 04:10:34,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:10:34,811 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:10:34,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:10:35,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:10:35,014 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:10:35,014 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246573455] [2022-02-09 04:10:35,014 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246573455] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:10:35,014 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:10:35,014 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:10:35,014 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694707424] [2022-02-09 04:10:35,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:10:35,015 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:10:35,015 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:10:35,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:10:35,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:10:35,015 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) [2022-02-09 04:10:36,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:10:36,348 INFO L93 Difference]: Finished difference Result 7463 states and 25083 transitions. [2022-02-09 04:10:36,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-02-09 04:10:36,349 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 [2022-02-09 04:10:36,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:10:36,363 INFO L225 Difference]: With dead ends: 7463 [2022-02-09 04:10:36,364 INFO L226 Difference]: Without dead ends: 7372 [2022-02-09 04:10:36,364 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 [2022-02-09 04:10:36,364 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, 0.7s IncrementalHoareTripleChecker+Time [2022-02-09 04:10:36,364 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [378 Valid, 1844 Invalid, 2414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 2353 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-09 04:10:36,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7372 states. [2022-02-09 04:10:36,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7372 to 5463. [2022-02-09 04:10:36,436 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) [2022-02-09 04:10:36,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5463 states to 5463 states and 18513 transitions. [2022-02-09 04:10:36,447 INFO L78 Accepts]: Start accepts. Automaton has 5463 states and 18513 transitions. Word has length 39 [2022-02-09 04:10:36,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:10:36,447 INFO L470 AbstractCegarLoop]: Abstraction has 5463 states and 18513 transitions. [2022-02-09 04:10:36,447 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:10:36,447 INFO L276 IsEmpty]: Start isEmpty. Operand 5463 states and 18513 transitions. [2022-02-09 04:10:36,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:10:36,455 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:10:36,455 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] [2022-02-09 04:10:36,455 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable419 [2022-02-09 04:10:36,455 INFO L402 AbstractCegarLoop]: === Iteration 421 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:10:36,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:10:36,455 INFO L85 PathProgramCache]: Analyzing trace with hash -600248856, now seen corresponding path program 421 times [2022-02-09 04:10:36,455 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:10:36,455 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644840364] [2022-02-09 04:10:36,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:10:36,456 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:10:36,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:10:36,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:10:36,661 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:10:36,661 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644840364] [2022-02-09 04:10:36,661 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644840364] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:10:36,661 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:10:36,661 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:10:36,661 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437739474] [2022-02-09 04:10:36,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:10:36,661 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:10:36,662 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:10:36,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:10:36,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:10:36,662 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) [2022-02-09 04:10:38,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:10:38,207 INFO L93 Difference]: Finished difference Result 8096 states and 27315 transitions. [2022-02-09 04:10:38,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-02-09 04:10:38,208 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 [2022-02-09 04:10:38,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:10:38,223 INFO L225 Difference]: With dead ends: 8096 [2022-02-09 04:10:38,223 INFO L226 Difference]: Without dead ends: 7980 [2022-02-09 04:10:38,224 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 [2022-02-09 04:10:38,224 INFO L933 BasicCegarLoop]: 206 mSDtfsCounter, 386 mSDsluCounter, 2362 mSDsCounter, 0 mSdLazyCounter, 2719 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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 [2022-02-09 04:10:38,224 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] [2022-02-09 04:10:38,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7980 states. [2022-02-09 04:10:38,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7980 to 5417. [2022-02-09 04:10:38,296 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) [2022-02-09 04:10:38,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5417 states to 5417 states and 18388 transitions. [2022-02-09 04:10:38,307 INFO L78 Accepts]: Start accepts. Automaton has 5417 states and 18388 transitions. Word has length 39 [2022-02-09 04:10:38,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:10:38,307 INFO L470 AbstractCegarLoop]: Abstraction has 5417 states and 18388 transitions. [2022-02-09 04:10:38,307 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:10:38,307 INFO L276 IsEmpty]: Start isEmpty. Operand 5417 states and 18388 transitions. [2022-02-09 04:10:38,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:10:38,314 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:10:38,314 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] [2022-02-09 04:10:38,314 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable420 [2022-02-09 04:10:38,314 INFO L402 AbstractCegarLoop]: === Iteration 422 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:10:38,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:10:38,314 INFO L85 PathProgramCache]: Analyzing trace with hash 28984408, now seen corresponding path program 422 times [2022-02-09 04:10:38,314 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:10:38,314 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449217209] [2022-02-09 04:10:38,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:10:38,314 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:10:38,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:10:38,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:10:38,521 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:10:38,522 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449217209] [2022-02-09 04:10:38,522 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449217209] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:10:38,522 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:10:38,522 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:10:38,522 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898119144] [2022-02-09 04:10:38,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:10:38,522 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:10:38,522 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:10:38,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:10:38,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:10:38,522 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) [2022-02-09 04:10:39,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:10:39,521 INFO L93 Difference]: Finished difference Result 5910 states and 19840 transitions. [2022-02-09 04:10:39,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-02-09 04:10:39,521 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:10:39,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:10:39,533 INFO L225 Difference]: With dead ends: 5910 [2022-02-09 04:10:39,533 INFO L226 Difference]: Without dead ends: 5843 [2022-02-09 04:10:39,533 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 [2022-02-09 04:10:39,533 INFO L933 BasicCegarLoop]: 110 mSDtfsCounter, 260 mSDsluCounter, 1295 mSDsCounter, 0 mSdLazyCounter, 1700 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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 [2022-02-09 04:10:39,533 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] [2022-02-09 04:10:39,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5843 states. [2022-02-09 04:10:39,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5843 to 5435. [2022-02-09 04:10:39,611 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) [2022-02-09 04:10:39,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5435 states to 5435 states and 18435 transitions. [2022-02-09 04:10:39,621 INFO L78 Accepts]: Start accepts. Automaton has 5435 states and 18435 transitions. Word has length 39 [2022-02-09 04:10:39,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:10:39,621 INFO L470 AbstractCegarLoop]: Abstraction has 5435 states and 18435 transitions. [2022-02-09 04:10:39,621 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:10:39,621 INFO L276 IsEmpty]: Start isEmpty. Operand 5435 states and 18435 transitions. [2022-02-09 04:10:39,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:10:39,628 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:10:39,628 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] [2022-02-09 04:10:39,628 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable421 [2022-02-09 04:10:39,628 INFO L402 AbstractCegarLoop]: === Iteration 423 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:10:39,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:10:39,629 INFO L85 PathProgramCache]: Analyzing trace with hash -143158810, now seen corresponding path program 423 times [2022-02-09 04:10:39,629 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:10:39,629 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74697985] [2022-02-09 04:10:39,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:10:39,629 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:10:39,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:10:39,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:10:39,836 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:10:39,836 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74697985] [2022-02-09 04:10:39,836 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74697985] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:10:39,836 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:10:39,836 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:10:39,837 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657744511] [2022-02-09 04:10:39,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:10:39,837 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:10:39,837 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:10:39,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:10:39,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:10:39,837 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) [2022-02-09 04:10:40,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:10:40,791 INFO L93 Difference]: Finished difference Result 5870 states and 19710 transitions. [2022-02-09 04:10:40,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-02-09 04:10:40,791 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 [2022-02-09 04:10:40,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:10:40,802 INFO L225 Difference]: With dead ends: 5870 [2022-02-09 04:10:40,802 INFO L226 Difference]: Without dead ends: 5807 [2022-02-09 04:10:40,802 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 422 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=211, Invalid=1951, Unknown=0, NotChecked=0, Total=2162 [2022-02-09 04:10:40,802 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, 0.5s IncrementalHoareTripleChecker+Time [2022-02-09 04:10:40,803 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [233 Valid, 974 Invalid, 1610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 1566 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-09 04:10:40,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5807 states. [2022-02-09 04:10:40,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5807 to 5467. [2022-02-09 04:10:40,862 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) [2022-02-09 04:10:40,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5467 states to 5467 states and 18519 transitions. [2022-02-09 04:10:40,872 INFO L78 Accepts]: Start accepts. Automaton has 5467 states and 18519 transitions. Word has length 39 [2022-02-09 04:10:40,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:10:40,872 INFO L470 AbstractCegarLoop]: Abstraction has 5467 states and 18519 transitions. [2022-02-09 04:10:40,872 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:10:40,872 INFO L276 IsEmpty]: Start isEmpty. Operand 5467 states and 18519 transitions. [2022-02-09 04:10:40,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:10:40,879 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:10:40,879 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:10:40,880 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable422 [2022-02-09 04:10:40,880 INFO L402 AbstractCegarLoop]: === Iteration 424 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:10:40,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:10:40,883 INFO L85 PathProgramCache]: Analyzing trace with hash -1945992966, now seen corresponding path program 424 times [2022-02-09 04:10:40,883 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:10:40,883 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120851289] [2022-02-09 04:10:40,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:10:40,883 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:10:40,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:10:41,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:10:41,118 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:10:41,118 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120851289] [2022-02-09 04:10:41,118 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120851289] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:10:41,118 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:10:41,118 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:10:41,118 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606545033] [2022-02-09 04:10:41,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:10:41,118 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:10:41,118 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:10:41,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:10:41,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:10:41,118 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) [2022-02-09 04:10:42,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:10:42,059 INFO L93 Difference]: Finished difference Result 5870 states and 19702 transitions. [2022-02-09 04:10:42,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-09 04:10:42,059 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:10:42,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:10:42,094 INFO L225 Difference]: With dead ends: 5870 [2022-02-09 04:10:42,094 INFO L226 Difference]: Without dead ends: 5735 [2022-02-09 04:10:42,094 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 422 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=205, Invalid=1957, Unknown=0, NotChecked=0, Total=2162 [2022-02-09 04:10:42,094 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 [2022-02-09 04:10:42,095 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] [2022-02-09 04:10:42,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5735 states. [2022-02-09 04:10:42,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5735 to 5423. [2022-02-09 04:10:42,147 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) [2022-02-09 04:10:42,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5423 states to 5423 states and 18401 transitions. [2022-02-09 04:10:42,157 INFO L78 Accepts]: Start accepts. Automaton has 5423 states and 18401 transitions. Word has length 39 [2022-02-09 04:10:42,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:10:42,157 INFO L470 AbstractCegarLoop]: Abstraction has 5423 states and 18401 transitions. [2022-02-09 04:10:42,157 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:10:42,157 INFO L276 IsEmpty]: Start isEmpty. Operand 5423 states and 18401 transitions. [2022-02-09 04:10:42,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:10:42,164 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:10:42,164 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:10:42,164 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable423 [2022-02-09 04:10:42,164 INFO L402 AbstractCegarLoop]: === Iteration 425 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:10:42,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:10:42,165 INFO L85 PathProgramCache]: Analyzing trace with hash -276502838, now seen corresponding path program 425 times [2022-02-09 04:10:42,165 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:10:42,165 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041537646] [2022-02-09 04:10:42,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:10:42,165 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:10:42,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:10:42,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:10:42,375 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:10:42,375 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041537646] [2022-02-09 04:10:42,375 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041537646] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:10:42,375 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:10:42,375 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:10:42,375 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8331473] [2022-02-09 04:10:42,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:10:42,375 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:10:42,375 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:10:42,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:10:42,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:10:42,376 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) [2022-02-09 04:10:43,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:10:43,765 INFO L93 Difference]: Finished difference Result 5985 states and 20073 transitions. [2022-02-09 04:10:43,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-02-09 04:10:43,765 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 [2022-02-09 04:10:43,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:10:43,777 INFO L225 Difference]: With dead ends: 5985 [2022-02-09 04:10:43,777 INFO L226 Difference]: Without dead ends: 5918 [2022-02-09 04:10:43,777 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1056 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=393, Invalid=3639, Unknown=0, NotChecked=0, Total=4032 [2022-02-09 04:10:43,777 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 [2022-02-09 04:10:43,777 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] [2022-02-09 04:10:43,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5918 states. [2022-02-09 04:10:43,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5918 to 5449. [2022-02-09 04:10:43,838 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) [2022-02-09 04:10:43,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5449 states to 5449 states and 18472 transitions. [2022-02-09 04:10:43,849 INFO L78 Accepts]: Start accepts. Automaton has 5449 states and 18472 transitions. Word has length 39 [2022-02-09 04:10:43,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:10:43,849 INFO L470 AbstractCegarLoop]: Abstraction has 5449 states and 18472 transitions. [2022-02-09 04:10:43,849 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) [2022-02-09 04:10:43,849 INFO L276 IsEmpty]: Start isEmpty. Operand 5449 states and 18472 transitions. [2022-02-09 04:10:43,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:10:43,856 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:10:43,856 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] [2022-02-09 04:10:43,856 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable424 [2022-02-09 04:10:43,856 INFO L402 AbstractCegarLoop]: === Iteration 426 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:10:43,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:10:43,856 INFO L85 PathProgramCache]: Analyzing trace with hash -1996118808, now seen corresponding path program 426 times [2022-02-09 04:10:43,856 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:10:43,856 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619885830] [2022-02-09 04:10:43,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:10:43,856 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:10:43,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:10:44,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:10:44,063 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:10:44,063 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619885830] [2022-02-09 04:10:44,063 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619885830] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:10:44,063 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:10:44,063 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:10:44,063 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88133890] [2022-02-09 04:10:44,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:10:44,063 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:10:44,063 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:10:44,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:10:44,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:10:44,063 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) [2022-02-09 04:10:45,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:10:45,745 INFO L93 Difference]: Finished difference Result 6109 states and 20370 transitions. [2022-02-09 04:10:45,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-02-09 04:10:45,745 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:10:45,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:10:45,756 INFO L225 Difference]: With dead ends: 6109 [2022-02-09 04:10:45,757 INFO L226 Difference]: Without dead ends: 6066 [2022-02-09 04:10:45,757 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 [2022-02-09 04:10:45,757 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 [2022-02-09 04:10:45,757 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] [2022-02-09 04:10:45,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6066 states. [2022-02-09 04:10:45,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6066 to 5455. [2022-02-09 04:10:45,821 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) [2022-02-09 04:10:45,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5455 states to 5455 states and 18485 transitions. [2022-02-09 04:10:45,831 INFO L78 Accepts]: Start accepts. Automaton has 5455 states and 18485 transitions. Word has length 39 [2022-02-09 04:10:45,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:10:45,831 INFO L470 AbstractCegarLoop]: Abstraction has 5455 states and 18485 transitions. [2022-02-09 04:10:45,831 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) [2022-02-09 04:10:45,831 INFO L276 IsEmpty]: Start isEmpty. Operand 5455 states and 18485 transitions. [2022-02-09 04:10:45,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:10:45,838 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:10:45,838 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] [2022-02-09 04:10:45,839 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable425 [2022-02-09 04:10:45,839 INFO L402 AbstractCegarLoop]: === Iteration 427 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:10:45,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:10:45,839 INFO L85 PathProgramCache]: Analyzing trace with hash 518250186, now seen corresponding path program 427 times [2022-02-09 04:10:45,839 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:10:45,839 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660883349] [2022-02-09 04:10:45,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:10:45,839 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:10:45,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:10:46,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:10:46,045 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:10:46,045 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660883349] [2022-02-09 04:10:46,045 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660883349] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:10:46,045 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:10:46,045 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:10:46,046 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640644071] [2022-02-09 04:10:46,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:10:46,046 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:10:46,046 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:10:46,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:10:46,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:10:46,046 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) [2022-02-09 04:10:47,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:10:47,625 INFO L93 Difference]: Finished difference Result 6058 states and 20247 transitions. [2022-02-09 04:10:47,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-02-09 04:10:47,625 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:10:47,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:10:47,637 INFO L225 Difference]: With dead ends: 6058 [2022-02-09 04:10:47,637 INFO L226 Difference]: Without dead ends: 5994 [2022-02-09 04:10:47,637 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1289 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=423, Invalid=4269, Unknown=0, NotChecked=0, Total=4692 [2022-02-09 04:10:47,638 INFO L933 BasicCegarLoop]: 105 mSDtfsCounter, 368 mSDsluCounter, 1342 mSDsCounter, 0 mSdLazyCounter, 1961 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 04:10:47,638 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [368 Valid, 1116 Invalid, 2062 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 1961 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 04:10:47,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5994 states. [2022-02-09 04:10:47,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5994 to 5433. [2022-02-09 04:10:47,718 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) [2022-02-09 04:10:47,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5433 states to 5433 states and 18432 transitions. [2022-02-09 04:10:47,728 INFO L78 Accepts]: Start accepts. Automaton has 5433 states and 18432 transitions. Word has length 39 [2022-02-09 04:10:47,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:10:47,728 INFO L470 AbstractCegarLoop]: Abstraction has 5433 states and 18432 transitions. [2022-02-09 04:10:47,728 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) [2022-02-09 04:10:47,728 INFO L276 IsEmpty]: Start isEmpty. Operand 5433 states and 18432 transitions. [2022-02-09 04:10:47,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:10:47,735 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:10:47,735 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] [2022-02-09 04:10:47,735 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable426 [2022-02-09 04:10:47,735 INFO L402 AbstractCegarLoop]: === Iteration 428 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:10:47,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:10:47,735 INFO L85 PathProgramCache]: Analyzing trace with hash 1138684586, now seen corresponding path program 428 times [2022-02-09 04:10:47,735 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:10:47,735 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094936918] [2022-02-09 04:10:47,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:10:47,735 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:10:47,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:10:47,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:10:47,942 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:10:47,942 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094936918] [2022-02-09 04:10:47,942 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094936918] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:10:47,942 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:10:47,942 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:10:47,942 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719880954] [2022-02-09 04:10:47,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:10:47,943 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:10:47,943 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:10:47,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:10:47,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:10:47,943 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) [2022-02-09 04:10:49,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:10:49,309 INFO L93 Difference]: Finished difference Result 5985 states and 20067 transitions. [2022-02-09 04:10:49,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-02-09 04:10:49,309 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:10:49,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:10:49,320 INFO L225 Difference]: With dead ends: 5985 [2022-02-09 04:10:49,320 INFO L226 Difference]: Without dead ends: 5918 [2022-02-09 04:10:49,321 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 [2022-02-09 04:10:49,321 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 [2022-02-09 04:10:49,321 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] [2022-02-09 04:10:49,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5918 states. [2022-02-09 04:10:49,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5918 to 5457. [2022-02-09 04:10:49,383 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) [2022-02-09 04:10:49,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5457 states to 5457 states and 18510 transitions. [2022-02-09 04:10:49,394 INFO L78 Accepts]: Start accepts. Automaton has 5457 states and 18510 transitions. Word has length 39 [2022-02-09 04:10:49,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:10:49,394 INFO L470 AbstractCegarLoop]: Abstraction has 5457 states and 18510 transitions. [2022-02-09 04:10:49,394 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:10:49,394 INFO L276 IsEmpty]: Start isEmpty. Operand 5457 states and 18510 transitions. [2022-02-09 04:10:49,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:10:49,401 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:10:49,401 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 04:10:49,401 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable427 [2022-02-09 04:10:49,401 INFO L402 AbstractCegarLoop]: === Iteration 429 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:10:49,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:10:49,402 INFO L85 PathProgramCache]: Analyzing trace with hash 1008089738, now seen corresponding path program 429 times [2022-02-09 04:10:49,402 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:10:49,402 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269850423] [2022-02-09 04:10:49,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:10:49,402 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:10:49,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:10:49,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:10:49,613 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:10:49,613 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269850423] [2022-02-09 04:10:49,613 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269850423] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:10:49,613 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:10:49,613 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:10:49,613 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107931790] [2022-02-09 04:10:49,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:10:49,613 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:10:49,613 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:10:49,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:10:49,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:10:49,614 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) [2022-02-09 04:10:50,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:10:50,872 INFO L93 Difference]: Finished difference Result 5988 states and 20026 transitions. [2022-02-09 04:10:50,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-02-09 04:10:50,873 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-02-09 04:10:50,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:10:50,884 INFO L225 Difference]: With dead ends: 5988 [2022-02-09 04:10:50,884 INFO L226 Difference]: Without dead ends: 5925 [2022-02-09 04:10:50,885 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 [2022-02-09 04:10:50,885 INFO L933 BasicCegarLoop]: 96 mSDtfsCounter, 285 mSDsluCounter, 1209 mSDsCounter, 0 mSdLazyCounter, 1650 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.5s IncrementalHoareTripleChecker+Time [2022-02-09 04:10:50,885 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [285 Valid, 983 Invalid, 1731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 1650 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-09 04:10:50,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5925 states. [2022-02-09 04:10:50,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5925 to 5457. [2022-02-09 04:10:50,946 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) [2022-02-09 04:10:50,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5457 states to 5457 states and 18506 transitions. [2022-02-09 04:10:50,956 INFO L78 Accepts]: Start accepts. Automaton has 5457 states and 18506 transitions. Word has length 39 [2022-02-09 04:10:50,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:10:50,956 INFO L470 AbstractCegarLoop]: Abstraction has 5457 states and 18506 transitions. [2022-02-09 04:10:50,956 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 04:10:50,956 INFO L276 IsEmpty]: Start isEmpty. Operand 5457 states and 18506 transitions. [2022-02-09 04:10:50,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:10:50,963 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:10:50,963 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] [2022-02-09 04:10:50,963 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable428 [2022-02-09 04:10:50,964 INFO L402 AbstractCegarLoop]: === Iteration 430 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:10:50,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:10:50,964 INFO L85 PathProgramCache]: Analyzing trace with hash 872411146, now seen corresponding path program 430 times [2022-02-09 04:10:50,964 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:10:50,964 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159099612] [2022-02-09 04:10:50,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:10:50,964 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:10:50,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:10:51,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:10:51,173 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:10:51,173 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159099612] [2022-02-09 04:10:51,173 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159099612] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:10:51,173 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:10:51,173 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:10:51,173 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482101210] [2022-02-09 04:10:51,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:10:51,173 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:10:51,173 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:10:51,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:10:51,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:10:51,174 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) [2022-02-09 04:10:52,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:10:52,819 INFO L93 Difference]: Finished difference Result 6136 states and 20400 transitions. [2022-02-09 04:10:52,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-02-09 04:10:52,819 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 [2022-02-09 04:10:52,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 04:10:52,831 INFO L225 Difference]: With dead ends: 6136 [2022-02-09 04:10:52,831 INFO L226 Difference]: Without dead ends: 6093 [2022-02-09 04:10:52,832 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 [2022-02-09 04:10:52,832 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 [2022-02-09 04:10:52,832 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] [2022-02-09 04:10:52,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6093 states. [2022-02-09 04:10:52,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6093 to 5469. [2022-02-09 04:10:52,918 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) [2022-02-09 04:10:52,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5469 states to 5469 states and 18542 transitions. [2022-02-09 04:10:52,931 INFO L78 Accepts]: Start accepts. Automaton has 5469 states and 18542 transitions. Word has length 39 [2022-02-09 04:10:52,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 04:10:52,931 INFO L470 AbstractCegarLoop]: Abstraction has 5469 states and 18542 transitions. [2022-02-09 04:10:52,931 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) [2022-02-09 04:10:52,931 INFO L276 IsEmpty]: Start isEmpty. Operand 5469 states and 18542 transitions. [2022-02-09 04:10:52,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-09 04:10:52,939 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 04:10:52,939 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] [2022-02-09 04:10:52,939 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable429 [2022-02-09 04:10:52,939 INFO L402 AbstractCegarLoop]: === Iteration 431 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 04:10:52,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 04:10:52,939 INFO L85 PathProgramCache]: Analyzing trace with hash -908187156, now seen corresponding path program 431 times [2022-02-09 04:10:52,939 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 04:10:52,940 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880291952] [2022-02-09 04:10:52,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 04:10:52,940 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 04:10:52,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 04:10:53,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 04:10:53,144 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 04:10:53,144 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880291952] [2022-02-09 04:10:53,144 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880291952] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 04:10:53,144 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 04:10:53,144 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-09 04:10:53,144 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386765686] [2022-02-09 04:10:53,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 04:10:53,144 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-09 04:10:53,144 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 04:10:53,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-09 04:10:53,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-02-09 04:10:53,144 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) [2022-02-09 04:10:54,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 04:10:54,757 INFO L93 Difference]: Finished difference Result 6124 states and 20362 transitions. [2022-02-09 04:10:54,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2022-02-09 04:10:54,758 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 [2022-02-09 04:10:54,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. Received shutdown request... [2022-02-09 04:10:54,771 INFO L225 Difference]: With dead ends: 6124 [2022-02-09 04:10:54,772 INFO L226 Difference]: Without dead ends: 6072 [2022-02-09 04:10:54,772 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1333 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=418, Invalid=4412, Unknown=0, NotChecked=0, Total=4830 [2022-02-09 04:10:54,772 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 [2022-02-09 04:10:54,772 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] [2022-02-09 04:10:54,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6072 states. [2022-02-09 04:10:54,781 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (4 of 5 remaining) [2022-02-09 04:10:54,782 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable430 [2022-02-09 04:10:54,782 WARN L594 AbstractCegarLoop]: Verification canceled: while executing MinimizeSevpa. [2022-02-09 04:10:54,783 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 5 remaining) [2022-02-09 04:10:54,783 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (2 of 5 remaining) [2022-02-09 04:10:54,784 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (1 of 5 remaining) [2022-02-09 04:10:54,784 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3INUSE_VIOLATION (0 of 5 remaining) [2022-02-09 04:10:54,786 INFO L732 BasicCegarLoop]: Path program histogram: [431] [2022-02-09 04:10:54,788 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-09 04:10:54,788 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-09 04:10:54,789 INFO L202 PluginConnector]: Adding new model easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.02 04:10:54 BasicIcfg [2022-02-09 04:10:54,789 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-09 04:10:54,789 INFO L158 Benchmark]: Toolchain (without parser) took 726411.02ms. Allocated memory was 189.8MB in the beginning and 792.7MB in the end (delta: 602.9MB). Free memory was 154.8MB in the beginning and 347.1MB in the end (delta: -192.3MB). Peak memory consumption was 411.3MB. Max. memory is 8.0GB. [2022-02-09 04:10:54,789 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.12ms. Allocated memory is still 189.8MB. Free memory is still 155.8MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-09 04:10:54,790 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.34ms. Allocated memory is still 189.8MB. Free memory was 154.6MB in the beginning and 153.1MB in the end (delta: 1.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-02-09 04:10:54,790 INFO L158 Benchmark]: Boogie Preprocessor took 8.88ms. Allocated memory is still 189.8MB. Free memory was 153.1MB in the beginning and 152.2MB in the end (delta: 885.5kB). There was no memory consumed. Max. memory is 8.0GB. [2022-02-09 04:10:54,790 INFO L158 Benchmark]: RCFGBuilder took 220.28ms. Allocated memory is still 189.8MB. Free memory was 152.1MB in the beginning and 142.9MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-02-09 04:10:54,790 INFO L158 Benchmark]: TraceAbstraction took 726155.84ms. Allocated memory was 189.8MB in the beginning and 792.7MB in the end (delta: 602.9MB). Free memory was 142.3MB in the beginning and 347.1MB in the end (delta: -204.7MB). Peak memory consumption was 397.6MB. Max. memory is 8.0GB. [2022-02-09 04:10:54,790 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 189.8MB. Free memory is still 155.8MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 22.34ms. Allocated memory is still 189.8MB. Free memory was 154.6MB in the beginning and 153.1MB in the end (delta: 1.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 8.88ms. Allocated memory is still 189.8MB. Free memory was 153.1MB in the beginning and 152.2MB in the end (delta: 885.5kB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 220.28ms. Allocated memory is still 189.8MB. Free memory was 152.1MB in the beginning and 142.9MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * TraceAbstraction took 726155.84ms. Allocated memory was 189.8MB in the beginning and 792.7MB in the end (delta: 602.9MB). Free memory was 142.3MB in the beginning and 347.1MB in the end (delta: -204.7MB). Peak memory consumption was 397.6MB. 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 executing MinimizeSevpa. - 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 executing MinimizeSevpa. - 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 executing MinimizeSevpa. - 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 executing MinimizeSevpa. - 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 executing MinimizeSevpa. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 82 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 726.1s, OverallIterations: 431, TraceHistogramMax: 1, PathProgramHistogramMax: 431, EmptinessCheckTime: 2.8s, AutomataDifference: 596.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 127856 SdHoareTripleChecker+Valid, 288.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 127856 mSDsluCounter, 550228 SdHoareTripleChecker+Invalid, 242.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 640192 mSDsCounter, 24059 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 871591 IncrementalHoareTripleChecker+Invalid, 895650 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24059 mSolverCounterUnsat, 55378 mSDtfsCounter, 871591 mSolverCounterSat, 2.4s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 24673 GetRequests, 579 SyntacticMatches, 893 SemanticMatches, 23201 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 341970 ImplicationChecksByTransitivity, 338.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5515occurred in iteration=410, InterpolantAutomatonStates: 20718, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 30.6s AutomataMinimizationTime, 431 MinimizatonAttempts, 376297 StatesRemovedByMinimization, 428 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 93.8s InterpolantComputationTime, 16809 NumberOfCodeBlocks, 16809 NumberOfCodeBlocksAsserted, 431 NumberOfCheckSat, 16378 ConstructedInterpolants, 0 QuantifiedInterpolants, 260093 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 431 InterpolantComputations, 431 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 [2022-02-09 04:10:54,796 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 RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown